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authorDave Airlie2021-01-29 17:04:36 +1000
committerDave Airlie2021-01-29 17:05:15 +1000
commit32c3d9b0f51ee1e6bb0160496b97e50b5caca4d0 (patch)
tree327b549196ad5a98fe77be2e7d317a21f92f882f
parentbc96ad6722f86a377ed2872c9a4854c90caf78ca (diff)
parent784953a46589276b38d7e6dcb5ebf7e29db72ff1 (diff)
Merge tag 'drm-intel-next-2021-01-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- HDCP 2.2 and HDCP 1.4 Gen12 DP MST support (Anshuman) - Fix DP vswing settings and handling (Imre, Ville) - Various display code clean-up (Jani, Ville) - Various display refactoring, including split out of pps, aux, and fdi (Ja\ ni, Dave) - Add DG1 missing workarounds (Jose) - Fix display color conversion (Chris, Ville) - Try to guess PCH type even without ISA bridge (Zhenyu) - More backlight refactor (Lyude) - Support two CSC module on gen11 and later (Lee) - Async flips for all ilk+ platforms (Ville) - Clear color support for TGL (RK) - Add a helper to read data from a GEM object page (Imre) - VRR/Adaptive Sync Enabling on DP/eDP for TGL+ (Manasi, Ville Aditya) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210127140822.GA711686@intel.com
-rw-r--r--drivers/gpu/drm/drm_dp_helper.c83
-rw-r--r--drivers/gpu/drm/drm_dp_mst_topology.c3
-rw-r--r--drivers/gpu/drm/i915/Makefile6
-rw-r--r--drivers/gpu/drm/i915/display/intel_atomic_plane.c2
-rw-r--r--drivers/gpu/drm/i915/display/intel_color.c16
-rw-r--r--drivers/gpu/drm/i915/display/intel_crtc.c325
-rw-r--r--drivers/gpu/drm/i915/display/intel_crtc.h22
-rw-r--r--drivers/gpu/drm/i915/display/intel_ddi.c81
-rw-r--r--drivers/gpu/drm/i915/display/intel_ddi.h6
-rw-r--r--drivers/gpu/drm/i915/display/intel_display.c2727
-rw-r--r--drivers/gpu/drm/i915/display/intel_display.h6
-rw-r--r--drivers/gpu/drm/i915/display/intel_display_debugfs.c9
-rw-r--r--drivers/gpu/drm/i915/display/intel_display_power.c6
-rw-r--r--drivers/gpu/drm/i915/display/intel_display_types.h141
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c2209
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.h10
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_aux.c692
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_aux.h18
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c297
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_hdcp.c186
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_link_training.c38
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_link_training.h3
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_mst.c12
-rw-r--r--drivers/gpu/drm/i915/display/intel_dpll.c1363
-rw-r--r--drivers/gpu/drm/i915/display/intel_dpll.h23
-rw-r--r--drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c2
-rw-r--r--drivers/gpu/drm/i915/display/intel_fbc.c2
-rw-r--r--drivers/gpu/drm/i915/display/intel_fdi.c683
-rw-r--r--drivers/gpu/drm/i915/display/intel_fdi.h22
-rw-r--r--drivers/gpu/drm/i915/display/intel_hdcp.c300
-rw-r--r--drivers/gpu/drm/i915/display/intel_hdcp.h8
-rw-r--r--drivers/gpu/drm/i915/display/intel_hdmi.c19
-rw-r--r--drivers/gpu/drm/i915/display/intel_panel.c396
-rw-r--r--drivers/gpu/drm/i915/display/intel_panel.h4
-rw-r--r--drivers/gpu/drm/i915/display/intel_pps.c1406
-rw-r--r--drivers/gpu/drm/i915/display/intel_pps.h52
-rw-r--r--drivers/gpu/drm/i915/display/intel_psr.c12
-rw-r--r--drivers/gpu/drm/i915/display/intel_sprite.c67
-rw-r--r--drivers/gpu/drm/i915/display/intel_vrr.c209
-rw-r--r--drivers/gpu/drm/i915/display/intel_vrr.h33
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_object.c65
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_object.h8
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c1
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h20
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c81
-rw-r--r--drivers/gpu/drm/i915/i915_irq.h3
-rw-r--r--drivers/gpu/drm/i915/i915_params.c2
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h63
-rw-r--r--drivers/gpu/drm/i915/intel_pch.c39
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c554
-rw-r--r--drivers/gpu/drm/i915/intel_pm.h7
-rw-r--r--drivers/gpu/drm/msm/dp/dp_ctrl.c6
-rw-r--r--drivers/misc/mei/hdcp/mei_hdcp.c3
-rw-r--r--include/drm/drm_dp_helper.h21
-rw-r--r--include/drm/drm_hdcp.h8
-rw-r--r--include/uapi/drm/drm_fourcc.h19
56 files changed, 6876 insertions, 5523 deletions
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 3c5b04abb66f..eedbb48815b7 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1236,7 +1236,7 @@ bool drm_dp_read_sink_count_cap(struct drm_connector *connector,
return connector->connector_type != DRM_MODE_CONNECTOR_eDP &&
dpcd[DP_DPCD_REV] >= DP_DPCD_REV_11 &&
dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT &&
- !drm_dp_has_quirk(desc, 0, DP_DPCD_QUIRK_NO_SINK_COUNT);
+ !drm_dp_has_quirk(desc, DP_DPCD_QUIRK_NO_SINK_COUNT);
}
EXPORT_SYMBOL(drm_dp_read_sink_count_cap);
@@ -1957,87 +1957,6 @@ drm_dp_get_quirks(const struct drm_dp_dpcd_ident *ident, bool is_branch)
#undef DEVICE_ID_ANY
#undef DEVICE_ID
-struct edid_quirk {
- u8 mfg_id[2];
- u8 prod_id[2];
- u32 quirks;
-};
-
-#define MFG(first, second) { (first), (second) }
-#define PROD_ID(first, second) { (first), (second) }
-
-/*
- * Some devices have unreliable OUIDs where they don't set the device ID
- * correctly, and as a result we need to use the EDID for finding additional
- * DP quirks in such cases.
- */
-static const struct edid_quirk edid_quirk_list[] = {
- /* Optional 4K AMOLED panel in the ThinkPad X1 Extreme 2nd Generation
- * only supports DPCD backlight controls
- */
- { MFG(0x4c, 0x83), PROD_ID(0x41, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
- /*
- * Some Dell CML 2020 systems have panels support both AUX and PWM
- * backlight control, and some only support AUX backlight control. All
- * said panels start up in AUX mode by default, and we don't have any
- * support for disabling HDR mode on these panels which would be
- * required to switch to PWM backlight control mode (plus, I'm not
- * even sure we want PWM backlight controls over DPCD backlight
- * controls anyway...). Until we have a better way of detecting these,
- * force DPCD backlight mode on all of them.
- */
- { MFG(0x06, 0xaf), PROD_ID(0x9b, 0x32), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
- { MFG(0x06, 0xaf), PROD_ID(0xeb, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
- { MFG(0x4d, 0x10), PROD_ID(0xc7, 0x14), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
- { MFG(0x4d, 0x10), PROD_ID(0xe6, 0x14), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
- { MFG(0x4c, 0x83), PROD_ID(0x47, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
- { MFG(0x09, 0xe5), PROD_ID(0xde, 0x08), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
-};
-
-#undef MFG
-#undef PROD_ID
-
-/**
- * drm_dp_get_edid_quirks() - Check the EDID of a DP device to find additional
- * DP-specific quirks
- * @edid: The EDID to check
- *
- * While OUIDs are meant to be used to recognize a DisplayPort device, a lot
- * of manufacturers don't seem to like following standards and neglect to fill
- * the dev-ID in, making it impossible to only use OUIDs for determining
- * quirks in some cases. This function can be used to check the EDID and look
- * up any additional DP quirks. The bits returned by this function correspond
- * to the quirk bits in &drm_dp_quirk.
- *
- * Returns: a bitmask of quirks, if any. The driver can check this using
- * drm_dp_has_quirk().
- */
-u32 drm_dp_get_edid_quirks(const struct edid *edid)
-{
- const struct edid_quirk *quirk;
- u32 quirks = 0;
- int i;
-
- if (!edid)
- return 0;
-
- for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
- quirk = &edid_quirk_list[i];
- if (memcmp(quirk->mfg_id, edid->mfg_id,
- sizeof(edid->mfg_id)) == 0 &&
- memcmp(quirk->prod_id, edid->prod_code,
- sizeof(edid->prod_code)) == 0)
- quirks |= quirk->quirks;
- }
-
- DRM_DEBUG_KMS("DP sink: EDID mfg %*phD prod-ID %*phD quirks: 0x%04x\n",
- (int)sizeof(edid->mfg_id), edid->mfg_id,
- (int)sizeof(edid->prod_code), edid->prod_code, quirks);
-
- return quirks;
-}
-EXPORT_SYMBOL(drm_dp_get_edid_quirks);
-
/**
* drm_dp_read_desc - read sink/branch descriptor from DPCD
* @aux: DisplayPort AUX channel
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 18b15a4aee2d..475939138b21 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -5824,8 +5824,7 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
if (drm_dp_read_desc(port->mgr->aux, &desc, true))
return NULL;
- if (drm_dp_has_quirk(&desc, 0,
- DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) &&
+ if (drm_dp_has_quirk(&desc, DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) &&
port->mgr->dpcd[DP_DPCD_REV] >= DP_DPCD_REV_14 &&
port->parent == port->mgr->mst_primary) {
u8 downstreamport;
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 6673362219a2..32bd1fdffffe 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -201,14 +201,17 @@ i915-y += \
display/intel_color.o \
display/intel_combo_phy.o \
display/intel_connector.o \
+ display/intel_crtc.o \
display/intel_csr.o \
display/intel_cursor.o \
display/intel_display.o \
display/intel_display_power.o \
display/intel_dpio_phy.o \
+ display/intel_dpll.o \
display/intel_dpll_mgr.o \
display/intel_dsb.o \
display/intel_fbc.o \
+ display/intel_fdi.o \
display/intel_fifo_underrun.o \
display/intel_frontbuffer.o \
display/intel_global_state.o \
@@ -240,6 +243,7 @@ i915-y += \
display/intel_crt.o \
display/intel_ddi.o \
display/intel_dp.o \
+ display/intel_dp_aux.o \
display/intel_dp_aux_backlight.o \
display/intel_dp_hdcp.o \
display/intel_dp_link_training.o \
@@ -253,9 +257,11 @@ i915-y += \
display/intel_lspcon.o \
display/intel_lvds.o \
display/intel_panel.o \
+ display/intel_pps.o \
display/intel_sdvo.o \
display/intel_tv.o \
display/intel_vdsc.o \
+ display/intel_vrr.o \
display/vlv_dsi.o \
display/vlv_dsi_pll.o
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index b5e1ee99535c..4683f98f7e54 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -452,7 +452,7 @@ void intel_update_plane(struct intel_plane *plane,
trace_intel_update_plane(&plane->base, crtc);
if (crtc_state->uapi.async_flip && plane->async_flip)
- plane->async_flip(plane, crtc_state, plane_state);
+ plane->async_flip(plane, crtc_state, plane_state, true);
else
plane->update_plane(plane, crtc_state, plane_state);
}
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 172d398081ee..ff7dcb7088bf 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -1485,6 +1485,7 @@ static u32 ivb_csc_mode(const struct intel_crtc_state *crtc_state)
static int ivb_color_check(struct intel_crtc_state *crtc_state)
{
+ struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
bool limited_color_range = ilk_csc_limited_range(crtc_state);
int ret;
@@ -1492,6 +1493,13 @@ static int ivb_color_check(struct intel_crtc_state *crtc_state)
if (ret)
return ret;
+ if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB &&
+ crtc_state->hw.ctm) {
+ drm_dbg_kms(&dev_priv->drm,
+ "YCBCR and CTM together are not possible\n");
+ return -EINVAL;
+ }
+
crtc_state->gamma_enable =
(crtc_state->hw.gamma_lut ||
crtc_state->hw.degamma_lut) &&
@@ -1525,12 +1533,20 @@ static u32 glk_gamma_mode(const struct intel_crtc_state *crtc_state)
static int glk_color_check(struct intel_crtc_state *crtc_state)
{
+ struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
int ret;
ret = check_luts(crtc_state);
if (ret)
return ret;
+ if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB &&
+ crtc_state->hw.ctm) {
+ drm_dbg_kms(&dev_priv->drm,
+ "YCBCR and CTM together are not possible\n");
+ return -EINVAL;
+ }
+
crtc_state->gamma_enable =
crtc_state->hw.gamma_lut &&
!crtc_state->c8_planes;
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
new file mode 100644
index 000000000000..57b0a3ebe908
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_plane.h>
+#include <drm/drm_plane_helper.h>
+
+#include "intel_atomic.h"
+#include "intel_atomic_plane.h"
+#include "intel_color.h"
+#include "intel_crtc.h"
+#include "intel_cursor.h"
+#include "intel_display_debugfs.h"
+#include "intel_display_types.h"
+#include "intel_pipe_crc.h"
+#include "intel_sprite.h"
+#include "i9xx_plane.h"
+
+static void assert_vblank_disabled(struct drm_crtc *crtc)
+{
+ if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0))
+ drm_crtc_vblank_put(crtc);
+}
+
+u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_vblank_crtc *vblank = &dev->vblank[drm_crtc_index(&crtc->base)];
+
+ if (!vblank->max_vblank_count)
+ return (u32)drm_crtc_accurate_vblank_count(&crtc->base);
+
+ return crtc->base.funcs->get_vblank_counter(&crtc->base);
+}
+
+u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ u32 mode_flags = crtc->mode_flags;
+
+ /*
+ * From Gen 11, In case of dsi cmd mode, frame counter wouldnt
+ * have updated at the beginning of TE, if we want to use
+ * the hw counter, then we would find it updated in only
+ * the next TE, hence switching to sw counter.
+ */
+ if (mode_flags & (I915_MODE_FLAG_DSI_USE_TE0 | I915_MODE_FLAG_DSI_USE_TE1))
+ return 0;
+
+ /*
+ * On i965gm the hardware frame counter reads
+ * zero when the TV encoder is enabled :(
+ */
+ if (IS_I965GM(dev_priv) &&
+ (crtc_state->output_types & BIT(INTEL_OUTPUT_TVOUT)))
+ return 0;
+
+ if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
+ return 0xffffffff; /* full 32 bit counter */
+ else if (INTEL_GEN(dev_priv) >= 3)
+ return 0xffffff; /* only 24 bits of frame count */
+ else
+ return 0; /* Gen2 doesn't have a hardware frame counter */
+}
+
+void intel_crtc_vblank_on(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+ assert_vblank_disabled(&crtc->base);
+ drm_crtc_set_max_vblank_count(&crtc->base,
+ intel_crtc_max_vblank_count(crtc_state));
+ drm_crtc_vblank_on(&crtc->base);
+}
+
+void intel_crtc_vblank_off(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+ drm_crtc_vblank_off(&crtc->base);
+ assert_vblank_disabled(&crtc->base);
+}
+
+struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc)
+{
+ struct intel_crtc_state *crtc_state;
+
+ crtc_state = kmalloc(sizeof(*crtc_state), GFP_KERNEL);
+
+ if (crtc_state)
+ intel_crtc_state_reset(crtc_state, crtc);
+
+ return crtc_state;
+}
+
+void intel_crtc_state_reset(struct intel_crtc_state *crtc_state,
+ struct intel_crtc *crtc)
+{
+ memset(crtc_state, 0, sizeof(*crtc_state));
+
+ __drm_atomic_helper_crtc_state_reset(&crtc_state->uapi, &crtc->base);
+
+ crtc_state->cpu_transcoder = INVALID_TRANSCODER;
+ crtc_state->master_transcoder = INVALID_TRANSCODER;
+ crtc_state->hsw_workaround_pipe = INVALID_PIPE;
+ crtc_state->output_format = INTEL_OUTPUT_FORMAT_INVALID;
+ crtc_state->scaler_state.scaler_id = -1;
+ crtc_state->mst_master_transcoder = INVALID_TRANSCODER;
+}
+
+static struct intel_crtc *intel_crtc_alloc(void)
+{
+ struct intel_crtc_state *crtc_state;
+ struct intel_crtc *crtc;
+
+ crtc = kzalloc(sizeof(*crtc), GFP_KERNEL);
+ if (!crtc)
+ return ERR_PTR(-ENOMEM);
+
+ crtc_state = intel_crtc_state_alloc(crtc);
+ if (!crtc_state) {
+ kfree(crtc);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ crtc->base.state = &crtc_state->uapi;
+ crtc->config = crtc_state;
+
+ return crtc;
+}
+
+static void intel_crtc_free(struct intel_crtc *crtc)
+{
+ intel_crtc_destroy_state(&crtc->base, crtc->base.state);
+ kfree(crtc);
+}
+
+static void intel_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ drm_crtc_cleanup(crtc);
+ kfree(intel_crtc);
+}
+
+static int intel_crtc_late_register(struct drm_crtc *crtc)
+{
+ intel_crtc_debugfs_add(crtc);
+ return 0;
+}
+
+#define INTEL_CRTC_FUNCS \
+ .set_config = drm_atomic_helper_set_config, \
+ .destroy = intel_crtc_destroy, \
+ .page_flip = drm_atomic_helper_page_flip, \
+ .atomic_duplicate_state = intel_crtc_duplicate_state, \
+ .atomic_destroy_state = intel_crtc_destroy_state, \
+ .set_crc_source = intel_crtc_set_crc_source, \
+ .verify_crc_source = intel_crtc_verify_crc_source, \
+ .get_crc_sources = intel_crtc_get_crc_sources, \
+ .late_register = intel_crtc_late_register
+
+static const struct drm_crtc_funcs bdw_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ .get_vblank_counter = g4x_get_vblank_counter,
+ .enable_vblank = bdw_enable_vblank,
+ .disable_vblank = bdw_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+static const struct drm_crtc_funcs ilk_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ .get_vblank_counter = g4x_get_vblank_counter,
+ .enable_vblank = ilk_enable_vblank,
+ .disable_vblank = ilk_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+static const struct drm_crtc_funcs g4x_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ .get_vblank_counter = g4x_get_vblank_counter,
+ .enable_vblank = i965_enable_vblank,
+ .disable_vblank = i965_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+static const struct drm_crtc_funcs i965_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ .get_vblank_counter = i915_get_vblank_counter,
+ .enable_vblank = i965_enable_vblank,
+ .disable_vblank = i965_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+static const struct drm_crtc_funcs i915gm_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ .get_vblank_counter = i915_get_vblank_counter,
+ .enable_vblank = i915gm_enable_vblank,
+ .disable_vblank = i915gm_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+static const struct drm_crtc_funcs i915_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ .get_vblank_counter = i915_get_vblank_counter,
+ .enable_vblank = i8xx_enable_vblank,
+ .disable_vblank = i8xx_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+static const struct drm_crtc_funcs i8xx_crtc_funcs = {
+ INTEL_CRTC_FUNCS,
+
+ /* no hw vblank counter */
+ .enable_vblank = i8xx_enable_vblank,
+ .disable_vblank = i8xx_disable_vblank,
+ .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
+};
+
+int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
+{
+ struct intel_plane *primary, *cursor;
+ const struct drm_crtc_funcs *funcs;
+ struct intel_crtc *crtc;
+ int sprite, ret;
+
+ crtc = intel_crtc_alloc();
+ if (IS_ERR(crtc))
+ return PTR_ERR(crtc);
+
+ crtc->pipe = pipe;
+ crtc->num_scalers = RUNTIME_INFO(dev_priv)->num_scalers[pipe];
+
+ primary = intel_primary_plane_create(dev_priv, pipe);
+ if (IS_ERR(primary)) {
+ ret = PTR_ERR(primary);
+ goto fail;
+ }
+ crtc->plane_ids_mask |= BIT(primary->id);
+
+ for_each_sprite(dev_priv, pipe, sprite) {
+ struct intel_plane *plane;
+
+ plane = intel_sprite_plane_create(dev_priv, pipe, sprite);
+ if (IS_ERR(plane)) {
+ ret = PTR_ERR(plane);
+ goto fail;
+ }
+ crtc->plane_ids_mask |= BIT(plane->id);
+ }
+
+ cursor = intel_cursor_plane_create(dev_priv, pipe);
+ if (IS_ERR(cursor)) {
+ ret = PTR_ERR(cursor);
+ goto fail;
+ }
+ crtc->plane_ids_mask |= BIT(cursor->id);
+
+ if (HAS_GMCH(dev_priv)) {
+ if (IS_CHERRYVIEW(dev_priv) ||
+ IS_VALLEYVIEW(dev_priv) || IS_G4X(dev_priv))
+ funcs = &g4x_crtc_funcs;
+ else if (IS_GEN(dev_priv, 4))
+ funcs = &i965_crtc_funcs;
+ else if (IS_I945GM(dev_priv) || IS_I915GM(dev_priv))
+ funcs = &i915gm_crtc_funcs;
+ else if (IS_GEN(dev_priv, 3))
+ funcs = &i915_crtc_funcs;
+ else
+ funcs = &i8xx_crtc_funcs;
+ } else {
+ if (INTEL_GEN(dev_priv) >= 8)
+ funcs = &bdw_crtc_funcs;
+ else
+ funcs = &ilk_crtc_funcs;
+ }
+
+ ret = drm_crtc_init_with_planes(&dev_priv->drm, &crtc->base,
+ &primary->base, &cursor->base,
+ funcs, "pipe %c", pipe_name(pipe));
+ if (ret)
+ goto fail;
+
+ BUG_ON(pipe >= ARRAY_SIZE(dev_priv->pipe_to_crtc_mapping) ||
+ dev_priv->pipe_to_crtc_mapping[pipe] != NULL);
+ dev_priv->pipe_to_crtc_mapping[pipe] = crtc;
+
+ if (INTEL_GEN(dev_priv) < 9) {
+ enum i9xx_plane_id i9xx_plane = primary->i9xx_plane;
+
+ BUG_ON(i9xx_plane >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
+ dev_priv->plane_to_crtc_mapping[i9xx_plane] != NULL);
+ dev_priv->plane_to_crtc_mapping[i9xx_plane] = crtc;
+ }
+
+ if (INTEL_GEN(dev_priv) >= 10)
+ drm_crtc_create_scaling_filter_property(&crtc->base,
+ BIT(DRM_SCALING_FILTER_DEFAULT) |
+ BIT(DRM_SCALING_FILTER_NEAREST_NEIGHBOR));
+
+ intel_color_init(crtc);
+
+ intel_crtc_crc_init(crtc);
+
+ drm_WARN_ON(&dev_priv->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
+
+ return 0;
+
+fail:
+ intel_crtc_free(crtc);
+
+ return ret;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.h b/drivers/gpu/drm/i915/display/intel_crtc.h
new file mode 100644
index 000000000000..08112d557411
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_crtc.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _INTEL_CRTC_H_
+#define _INTEL_CRTC_H_
+
+#include <linux/types.h>
+
+enum pipe;
+struct drm_i915_private;
+struct intel_crtc;
+struct intel_crtc_state;
+
+u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state);
+int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe);
+struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc);
+void intel_crtc_state_reset(struct intel_crtc_state *crtc_state,
+ struct intel_crtc *crtc);
+
+#endif
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index ef9848001418..fbd857f2bdb2 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -46,10 +46,12 @@
#include "intel_hotplug.h"
#include "intel_lspcon.h"
#include "intel_panel.h"
+#include "intel_pps.h"
#include "intel_psr.h"
#include "intel_sprite.h"
#include "intel_tc.h"
#include "intel_vdsc.h"
+#include "intel_vrr.h"
struct ddi_buf_trans {
u32 trans1; /* balance leg enable, de-emph level */
@@ -2099,9 +2101,9 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
}
}
-int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
- enum transcoder cpu_transcoder,
- bool enable)
+int intel_ddi_toggle_hdcp_bits(struct intel_encoder *intel_encoder,
+ enum transcoder cpu_transcoder,
+ bool enable, u32 hdcp_mask)
{
struct drm_device *dev = intel_encoder->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -2116,9 +2118,9 @@ int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
if (enable)
- tmp |= TRANS_DDI_HDCP_SIGNALLING;
+ tmp |= hdcp_mask;
else
- tmp &= ~TRANS_DDI_HDCP_SIGNALLING;
+ tmp &= ~hdcp_mask;
intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), tmp);
intel_display_power_put(dev_priv, intel_encoder->power_domain, wakeref);
return ret;
@@ -2701,15 +2703,11 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
ddi_translations = ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
else
ddi_translations = icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
- if (!ddi_translations)
- return;
- if (level >= n_entries) {
- drm_dbg_kms(&dev_priv->drm,
- "DDI translation not found for level %d. Using %d instead.",
- level, n_entries - 1);
+ if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
+ return;
+ if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
level = n_entries - 1;
- }
if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
@@ -2830,13 +2828,11 @@ static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
u32 val;
ddi_translations = icl_get_mg_buf_trans(encoder, crtc_state, &n_entries);
- /* The table does not have values for level 3 and level 9. */
- if (level >= n_entries || level == 3 || level == 9) {
- drm_dbg_kms(&dev_priv->drm,
- "DDI translation not found for level %d. Using %d instead.",
- level, n_entries - 2);
- level = n_entries - 2;
- }
+
+ if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
+ return;
+ if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
+ level = n_entries - 1;
/* Set MG_TX_LINK_PARAMS cri_use_fs32 to 0. */
for (ln = 0; ln < 2; ln++) {
@@ -2968,7 +2964,9 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries);
- if (level >= n_entries)
+ if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
+ return;
+ if (drm_WARN_ON_ONCE(&dev_priv->drm, level >= n_entries))
level = n_entries - 1;
dpcnt_mask = (DKL_TX_PRESHOOT_COEFF_MASK |
@@ -3555,6 +3553,22 @@ i915_reg_t dp_tp_status_reg(struct intel_encoder *encoder,
return DP_TP_STATUS(encoder->port);
}
+static void intel_dp_sink_set_msa_timing_par_ignore_state(struct intel_dp *intel_dp,
+ const struct intel_crtc_state *crtc_state,
+ bool enable)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+ if (!crtc_state->vrr.enable)
+ return;
+
+ if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_DOWNSPREAD_CTRL,
+ enable ? DP_MSA_TIMING_PAR_IGNORE_EN : 0) <= 0)
+ drm_dbg_kms(&i915->drm,
+ "Failed to set MSA_TIMING_PAR_IGNORE %s in the sink\n",
+ enable ? "enable" : "disable");
+}
+
static void intel_dp_sink_set_fec_ready(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state)
{
@@ -3625,7 +3639,7 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
*/
/* 2. Enable Panel Power if PPS is required */
- intel_edp_panel_on(intel_dp);
+ intel_pps_on(intel_dp);
/*
* 3. For non-TBT Type-C ports, set FIA lane count
@@ -3768,7 +3782,7 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
crtc_state->port_clock,
crtc_state->lane_count);
- intel_edp_panel_on(intel_dp);
+ intel_pps_on(intel_dp);
intel_ddi_clk_select(encoder, crtc_state);
@@ -4010,8 +4024,8 @@ static void intel_ddi_post_disable_dp(struct intel_atomic_state *state,
if (INTEL_GEN(dev_priv) >= 12)
intel_ddi_disable_pipe_clock(old_crtc_state);
- intel_edp_panel_vdd_on(intel_dp);
- intel_edp_panel_off(intel_dp);
+ intel_pps_vdd_on(intel_dp);
+ intel_pps_off(intel_dp);
if (!intel_phy_is_tc(dev_priv, phy) ||
dig_port->tc_mode != TC_PORT_TBT_ALT)
@@ -4062,6 +4076,8 @@ static void intel_ddi_post_disable(struct intel_atomic_state *state,
intel_disable_pipe(old_crtc_state);
+ intel_vrr_disable(old_crtc_state);
+
intel_ddi_disable_transcoder_func(old_crtc_state);
intel_dsc_disable(old_crtc_state);
@@ -4313,6 +4329,8 @@ static void intel_enable_ddi(struct intel_atomic_state *state,
if (!crtc_state->bigjoiner_slave)
intel_ddi_enable_transcoder_func(encoder, crtc_state);
+ intel_vrr_enable(encoder, crtc_state);
+
intel_enable_pipe(crtc_state);
intel_crtc_vblank_on(crtc_state);
@@ -4326,7 +4344,7 @@ static void intel_enable_ddi(struct intel_atomic_state *state,
if (conn_state->content_protection ==
DRM_MODE_CONTENT_PROTECTION_DESIRED)
intel_hdcp_enable(to_intel_connector(conn_state->connector),
- crtc_state->cpu_transcoder,
+ crtc_state,
(u8)conn_state->hdcp_content_type);
}
@@ -4349,6 +4367,9 @@ static void intel_disable_ddi_dp(struct intel_atomic_state *state,
/* Disable the decompression in DP Sink */
intel_dp_sink_set_decompression_state(intel_dp, old_crtc_state,
false);
+ /* Disable Ignore_MSA bit in DP Sink */
+ intel_dp_sink_set_msa_timing_par_ignore_state(intel_dp, old_crtc_state,
+ false);
}
static void intel_disable_ddi_hdmi(struct intel_atomic_state *state,
@@ -5039,6 +5060,8 @@ static void intel_ddi_encoder_destroy(struct drm_encoder *encoder)
intel_dp_encoder_flush_work(encoder);
drm_encoder_cleanup(encoder);
+ if (dig_port)
+ kfree(dig_port->hdcp_port_data.streams);
kfree(dig_port);
}
@@ -5192,12 +5215,20 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+ struct intel_dp *intel_dp = &dig_port->dp;
enum phy phy = intel_port_to_phy(i915, encoder->port);
bool is_tc = intel_phy_is_tc(i915, phy);
struct drm_modeset_acquire_ctx ctx;
enum intel_hotplug_state state;
int ret;
+ if (intel_dp->compliance.test_active &&
+ intel_dp->compliance.test_type == DP_TEST_LINK_PHY_TEST_PATTERN) {
+ intel_dp_phy_test(encoder);
+ /* just do the PHY test and nothing else */
+ return INTEL_HOTPLUG_UNCHANGED;
+ }
+
state = intel_encoder_hotplug(encoder, connector);
drm_modeset_acquire_init(&ctx, 0);
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.h b/drivers/gpu/drm/i915/display/intel_ddi.h
index dcc711cfe4fe..a4dd815c0000 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.h
+++ b/drivers/gpu/drm/i915/display/intel_ddi.h
@@ -50,9 +50,9 @@ u32 bxt_signal_levels(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state);
u32 ddi_signal_levels(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state);
-int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
- enum transcoder cpu_transcoder,
- bool enable);
+int intel_ddi_toggle_hdcp_bits(struct intel_encoder *intel_encoder,
+ enum transcoder cpu_transcoder,
+ bool enable, u32 hdcp_mask);
void icl_sanitize_encoder_pll_mapping(struct intel_encoder *encoder);
#endif /* __INTEL_DDI_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 54025001ed7f..7e57a8aeb233 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -48,6 +48,7 @@
#include "display/intel_display_debugfs.h"
#include "display/intel_dp.h"
#include "display/intel_dp_mst.h"
+#include "display/intel_dpll.h"
#include "display/intel_dpll_mgr.h"
#include "display/intel_dsi.h"
#include "display/intel_dvo.h"
@@ -57,6 +58,9 @@
#include "display/intel_sdvo.h"
#include "display/intel_tv.h"
#include "display/intel_vdsc.h"
+#include "display/intel_vrr.h"
+
+#include "gem/i915_gem_object.h"
#include "gt/intel_rps.h"
@@ -68,11 +72,12 @@
#include "intel_bw.h"
#include "intel_cdclk.h"
#include "intel_color.h"
+#include "intel_crtc.h"
#include "intel_csr.h"
-#include "intel_cursor.h"
#include "intel_display_types.h"
#include "intel_dp_link_training.h"
#include "intel_fbc.h"
+#include "intel_fdi.h"
#include "intel_fbdev.h"
#include "intel_fifo_underrun.h"
#include "intel_frontbuffer.h"
@@ -81,6 +86,7 @@
#include "intel_overlay.h"
#include "intel_pipe_crc.h"
#include "intel_pm.h"
+#include "intel_pps.h"
#include "intel_psr.h"
#include "intel_quirks.h"
#include "intel_sideband.h"
@@ -114,18 +120,6 @@ static void skl_pfit_enable(const struct intel_crtc_state *crtc_state);
static void ilk_pfit_enable(const struct intel_crtc_state *crtc_state);
static void intel_modeset_setup_hw_state(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx);
-static struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc);
-
-struct intel_limit {
- struct {
- int min, max;
- } dot, vco, n, m, m1, m2, p, p1;
-
- struct {
- int dot_limit;
- int p2_slow, p2_fast;
- } p2;
-};
/* returns HPLL frequency in kHz */
int vlv_get_hpll_vco(struct drm_i915_private *dev_priv)
@@ -184,281 +178,6 @@ static void intel_update_czclk(struct drm_i915_private *dev_priv)
dev_priv->czclk_freq);
}
-/* units of 100MHz */
-static u32 intel_fdi_link_freq(struct drm_i915_private *dev_priv,
- const struct intel_crtc_state *pipe_config)
-{
- if (HAS_DDI(dev_priv))
- return pipe_config->port_clock; /* SPLL */
- else
- return dev_priv->fdi_pll_freq;
-}
-
-static const struct intel_limit intel_limits_i8xx_dac = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 908000, .max = 1512000 },
- .n = { .min = 2, .max = 16 },
- .m = { .min = 96, .max = 140 },
- .m1 = { .min = 18, .max = 26 },
- .m2 = { .min = 6, .max = 16 },
- .p = { .min = 4, .max = 128 },
- .p1 = { .min = 2, .max = 33 },
- .p2 = { .dot_limit = 165000,
- .p2_slow = 4, .p2_fast = 2 },
-};
-
-static const struct intel_limit intel_limits_i8xx_dvo = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 908000, .max = 1512000 },
- .n = { .min = 2, .max = 16 },
- .m = { .min = 96, .max = 140 },
- .m1 = { .min = 18, .max = 26 },
- .m2 = { .min = 6, .max = 16 },
- .p = { .min = 4, .max = 128 },
- .p1 = { .min = 2, .max = 33 },
- .p2 = { .dot_limit = 165000,
- .p2_slow = 4, .p2_fast = 4 },
-};
-
-static const struct intel_limit intel_limits_i8xx_lvds = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 908000, .max = 1512000 },
- .n = { .min = 2, .max = 16 },
- .m = { .min = 96, .max = 140 },
- .m1 = { .min = 18, .max = 26 },
- .m2 = { .min = 6, .max = 16 },
- .p = { .min = 4, .max = 128 },
- .p1 = { .min = 1, .max = 6 },
- .p2 = { .dot_limit = 165000,
- .p2_slow = 14, .p2_fast = 7 },
-};
-
-static const struct intel_limit intel_limits_i9xx_sdvo = {
- .dot = { .min = 20000, .max = 400000 },
- .vco = { .min = 1400000, .max = 2800000 },
- .n = { .min = 1, .max = 6 },
- .m = { .min = 70, .max = 120 },
- .m1 = { .min = 8, .max = 18 },
- .m2 = { .min = 3, .max = 7 },
- .p = { .min = 5, .max = 80 },
- .p1 = { .min = 1, .max = 8 },
- .p2 = { .dot_limit = 200000,
- .p2_slow = 10, .p2_fast = 5 },
-};
-
-static const struct intel_limit intel_limits_i9xx_lvds = {
- .dot = { .min = 20000, .max = 400000 },
- .vco = { .min = 1400000, .max = 2800000 },
- .n = { .min = 1, .max = 6 },
- .m = { .min = 70, .max = 120 },
- .m1 = { .min = 8, .max = 18 },
- .m2 = { .min = 3, .max = 7 },
- .p = { .min = 7, .max = 98 },
- .p1 = { .min = 1, .max = 8 },
- .p2 = { .dot_limit = 112000,
- .p2_slow = 14, .p2_fast = 7 },
-};
-
-
-static const struct intel_limit intel_limits_g4x_sdvo = {
- .dot = { .min = 25000, .max = 270000 },
- .vco = { .min = 1750000, .max = 3500000},
- .n = { .min = 1, .max = 4 },
- .m = { .min = 104, .max = 138 },
- .m1 = { .min = 17, .max = 23 },
- .m2 = { .min = 5, .max = 11 },
- .p = { .min = 10, .max = 30 },
- .p1 = { .min = 1, .max = 3},
- .p2 = { .dot_limit = 270000,
- .p2_slow = 10,
- .p2_fast = 10
- },
-};
-
-static const struct intel_limit intel_limits_g4x_hdmi = {
- .dot = { .min = 22000, .max = 400000 },
- .vco = { .min = 1750000, .max = 3500000},
- .n = { .min = 1, .max = 4 },
- .m = { .min = 104, .max = 138 },
- .m1 = { .min = 16, .max = 23 },
- .m2 = { .min = 5, .max = 11 },
- .p = { .min = 5, .max = 80 },
- .p1 = { .min = 1, .max = 8},
- .p2 = { .dot_limit = 165000,
- .p2_slow = 10, .p2_fast = 5 },
-};
-
-static const struct intel_limit intel_limits_g4x_single_channel_lvds = {
- .dot = { .min = 20000, .max = 115000 },
- .vco = { .min = 1750000, .max = 3500000 },
- .n = { .min = 1, .max = 3 },
- .m = { .min = 104, .max = 138 },
- .m1 = { .min = 17, .max = 23 },
- .m2 = { .min = 5, .max = 11 },
- .p = { .min = 28, .max = 112 },
- .p1 = { .min = 2, .max = 8 },
- .p2 = { .dot_limit = 0,
- .p2_slow = 14, .p2_fast = 14
- },
-};
-
-static const struct intel_limit intel_limits_g4x_dual_channel_lvds = {
- .dot = { .min = 80000, .max = 224000 },
- .vco = { .min = 1750000, .max = 3500000 },
- .n = { .min = 1, .max = 3 },
- .m = { .min = 104, .max = 138 },
- .m1 = { .min = 17, .max = 23 },
- .m2 = { .min = 5, .max = 11 },
- .p = { .min = 14, .max = 42 },
- .p1 = { .min = 2, .max = 6 },
- .p2 = { .dot_limit = 0,
- .p2_slow = 7, .p2_fast = 7
- },
-};
-
-static const struct intel_limit pnv_limits_sdvo = {
- .dot = { .min = 20000, .max = 400000},
- .vco = { .min = 1700000, .max = 3500000 },
- /* Pineview's Ncounter is a ring counter */
- .n = { .min = 3, .max = 6 },
- .m = { .min = 2, .max = 256 },
- /* Pineview only has one combined m divider, which we treat as m2. */
- .m1 = { .min = 0, .max = 0 },
- .m2 = { .min = 0, .max = 254 },
- .p = { .min = 5, .max = 80 },
- .p1 = { .min = 1, .max = 8 },
- .p2 = { .dot_limit = 200000,
- .p2_slow = 10, .p2_fast = 5 },
-};
-
-static const struct intel_limit pnv_limits_lvds = {
- .dot = { .min = 20000, .max = 400000 },
- .vco = { .min = 1700000, .max = 3500000 },
- .n = { .min = 3, .max = 6 },
- .m = { .min = 2, .max = 256 },
- .m1 = { .min = 0, .max = 0 },
- .m2 = { .min = 0, .max = 254 },
- .p = { .min = 7, .max = 112 },
- .p1 = { .min = 1, .max = 8 },
- .p2 = { .dot_limit = 112000,
- .p2_slow = 14, .p2_fast = 14 },
-};
-
-/* Ironlake / Sandybridge
- *
- * We calculate clock using (register_value + 2) for N/M1/M2, so here
- * the range value for them is (actual_value - 2).
- */
-static const struct intel_limit ilk_limits_dac = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 1760000, .max = 3510000 },
- .n = { .min = 1, .max = 5 },
- .m = { .min = 79, .max = 127 },
- .m1 = { .min = 12, .max = 22 },
- .m2 = { .min = 5, .max = 9 },
- .p = { .min = 5, .max = 80 },
- .p1 = { .min = 1, .max = 8 },
- .p2 = { .dot_limit = 225000,
- .p2_slow = 10, .p2_fast = 5 },
-};
-
-static const struct intel_limit ilk_limits_single_lvds = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 1760000, .max = 3510000 },
- .n = { .min = 1, .max = 3 },
- .m = { .min = 79, .max = 118 },
- .m1 = { .min = 12, .max = 22 },
- .m2 = { .min = 5, .max = 9 },
- .p = { .min = 28, .max = 112 },
- .p1 = { .min = 2, .max = 8 },
- .p2 = { .dot_limit = 225000,
- .p2_slow = 14, .p2_fast = 14 },
-};
-
-static const struct intel_limit ilk_limits_dual_lvds = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 1760000, .max = 3510000 },
- .n = { .min = 1, .max = 3 },
- .m = { .min = 79, .max = 127 },
- .m1 = { .min = 12, .max = 22 },
- .m2 = { .min = 5, .max = 9 },
- .p = { .min = 14, .max = 56 },
- .p1 = { .min = 2, .max = 8 },
- .p2 = { .dot_limit = 225000,
- .p2_slow = 7, .p2_fast = 7 },
-};
-
-/* LVDS 100mhz refclk limits. */
-static const struct intel_limit ilk_limits_single_lvds_100m = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 1760000, .max = 3510000 },
- .n = { .min = 1, .max = 2 },
- .m = { .min = 79, .max = 126 },
- .m1 = { .min = 12, .max = 22 },
- .m2 = { .min = 5, .max = 9 },
- .p = { .min = 28, .max = 112 },
- .p1 = { .min = 2, .max = 8 },
- .p2 = { .dot_limit = 225000,
- .p2_slow = 14, .p2_fast = 14 },
-};
-
-static const struct intel_limit ilk_limits_dual_lvds_100m = {
- .dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 1760000, .max = 3510000 },
- .n = { .min = 1, .max = 3 },
- .m = { .min = 79, .max = 126 },
- .m1 = { .min = 12, .max = 22 },
- .m2 = { .min = 5, .max = 9 },
- .p = { .min = 14, .max = 42 },
- .p1 = { .min = 2, .max = 6 },
- .p2 = { .dot_limit = 225000,
- .p2_slow = 7, .p2_fast = 7 },
-};
-
-static const struct intel_limit intel_limits_vlv = {
- /*
- * These are the data rate limits (measured in fast clocks)
- * since those are the strictest limits we have. The fast
- * clock and actual rate limits are more relaxed, so checking
- * them would make no difference.
- */
- .dot = { .min = 25000 * 5, .max = 270000 * 5 },
- .vco = { .min = 4000000, .max = 6000000 },
- .n = { .min = 1, .max = 7 },
- .m1 = { .min = 2, .max = 3 },
- .m2 = { .min = 11, .max = 156 },
- .p1 = { .min = 2, .max = 3 },
- .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
-};
-
-static const struct intel_limit intel_limits_chv = {
- /*
- * These are the data rate limits (measured in fast clocks)
- * since those are the strictest limits we have. The fast
- * clock and actual rate limits are more relaxed, so checking
- * them would make no difference.
- */
- .dot = { .min = 25000 * 5, .max = 540000 * 5},
- .vco = { .min = 4800000, .max = 6480000 },
- .n = { .min = 1, .max = 1 },
- .m1 = { .min = 2, .max = 2 },
- .m2 = { .min = 24 << 22, .max = 175 << 22 },
- .p1 = { .min = 2, .max = 4 },
- .p2 = { .p2_slow = 1, .p2_fast = 14 },
-};
-
-static const struct intel_limit intel_limits_bxt = {
- /* FIXME: find real dot limits */
- .dot = { .min = 0, .max = INT_MAX },
- .vco = { .min = 4800000, .max = 6700000 },
- .n = { .min = 1, .max = 1 },
- .m1 = { .min = 2, .max = 2 },
- /* FIXME: find real m2 limits */
- .m2 = { .min = 2 << 22, .max = 255 << 22 },
- .p1 = { .min = 2, .max = 4 },
- .p2 = { .p2_slow = 1, .p2_fast = 20 },
-};
-
/* WA Display #0827: Gen9:all */
static void
skl_wa_827(struct drm_i915_private *dev_priv, enum pipe pipe, bool enable)
@@ -503,483 +222,6 @@ is_trans_port_sync_mode(const struct intel_crtc_state *crtc_state)
is_trans_port_sync_slave(crtc_state);
}
-/*
- * Platform specific helpers to calculate the port PLL loopback- (clock.m),
- * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast
- * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic.
- * The helpers' return value is the rate of the clock that is fed to the
- * display engine's pipe which can be the above fast dot clock rate or a
- * divided-down version of it.
- */
-/* m1 is reserved as 0 in Pineview, n is a ring counter */
-static int pnv_calc_dpll_params(int refclk, struct dpll *clock)
-{
- clock->m = clock->m2 + 2;
- clock->p = clock->p1 * clock->p2;
- if (WARN_ON(clock->n == 0 || clock->p == 0))
- return 0;
- clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
- clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
-
- return clock->dot;
-}
-
-static u32 i9xx_dpll_compute_m(struct dpll *dpll)
-{
- return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
-}
-
-static int i9xx_calc_dpll_params(int refclk, struct dpll *clock)
-{
- clock->m = i9xx_dpll_compute_m(clock);
- clock->p = clock->p1 * clock->p2;
- if (WARN_ON(clock->n + 2 == 0 || clock->p == 0))
- return 0;
- clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
- clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
-
- return clock->dot;
-}
-
-static int vlv_calc_dpll_params(int refclk, struct dpll *clock)
-{
- clock->m = clock->m1 * clock->m2;
- clock->p = clock->p1 * clock->p2;
- if (WARN_ON(clock->n == 0 || clock->p == 0))
- return 0;
- clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
- clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
-
- return clock->dot / 5;
-}
-
-int chv_calc_dpll_params(int refclk, struct dpll *clock)
-{
- clock->m = clock->m1 * clock->m2;
- clock->p = clock->p1 * clock->p2;
- if (WARN_ON(clock->n == 0 || clock->p == 0))
- return 0;
- clock->vco = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock->m),
- clock->n << 22);
- clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
-
- return clock->dot / 5;
-}
-
-/*
- * Returns whether the given set of divisors are valid for a given refclk with
- * the given connectors.
- */
-static bool intel_pll_is_valid(struct drm_i915_private *dev_priv,
- const struct intel_limit *limit,
- const struct dpll *clock)
-{
- if (clock->n < limit->n.min || limit->n.max < clock->n)
- return false;
- if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
- return false;
- if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
- return false;
- if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
- return false;
-
- if (!IS_PINEVIEW(dev_priv) && !IS_VALLEYVIEW(dev_priv) &&
- !IS_CHERRYVIEW(dev_priv) && !IS_GEN9_LP(dev_priv))
- if (clock->m1 <= clock->m2)
- return false;
-
- if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv) &&
- !IS_GEN9_LP(dev_priv)) {
- if (clock->p < limit->p.min || limit->p.max < clock->p)
- return false;
- if (clock->m < limit->m.min || limit->m.max < clock->m)
- return false;
- }
-
- if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
- return false;
- /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
- * connector, etc., rather than just a single range.
- */
- if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
- return false;
-
- return true;
-}
-
-static int
-i9xx_select_p2_div(const struct intel_limit *limit,
- const struct intel_crtc_state *crtc_state,
- int target)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- /*
- * For LVDS just rely on its current settings for dual-channel.
- * We haven't figured out how to reliably set up different
- * single/dual channel state, if we even can.
- */
- if (intel_is_dual_link_lvds(dev_priv))
- return limit->p2.p2_fast;
- else
- return limit->p2.p2_slow;
- } else {
- if (target < limit->p2.dot_limit)
- return limit->p2.p2_slow;
- else
- return limit->p2.p2_fast;
- }
-}
-
-/*
- * Returns a set of divisors for the desired target clock with the given
- * refclk, or FALSE. The returned values represent the clock equation:
- * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
- *
- * Target and reference clocks are specified in kHz.
- *
- * If match_clock is provided, then best_clock P divider must match the P
- * divider from @match_clock used for LVDS downclocking.
- */
-static bool
-i9xx_find_best_dpll(const struct intel_limit *limit,
- struct intel_crtc_state *crtc_state,
- int target, int refclk, struct dpll *match_clock,
- struct dpll *best_clock)
-{
- struct drm_device *dev = crtc_state->uapi.crtc->dev;
- struct dpll clock;
- int err = target;
-
- memset(best_clock, 0, sizeof(*best_clock));
-
- clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
-
- for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
- clock.m1++) {
- for (clock.m2 = limit->m2.min;
- clock.m2 <= limit->m2.max; clock.m2++) {
- if (clock.m2 >= clock.m1)
- break;
- for (clock.n = limit->n.min;
- clock.n <= limit->n.max; clock.n++) {
- for (clock.p1 = limit->p1.min;
- clock.p1 <= limit->p1.max; clock.p1++) {
- int this_err;
-
- i9xx_calc_dpll_params(refclk, &clock);
- if (!intel_pll_is_valid(to_i915(dev),
- limit,
- &clock))
- continue;
- if (match_clock &&
- clock.p != match_clock->p)
- continue;
-
- this_err = abs(clock.dot - target);
- if (this_err < err) {
- *best_clock = clock;
- err = this_err;
- }
- }
- }
- }
- }
-
- return (err != target);
-}
-
-/*
- * Returns a set of divisors for the desired target clock with the given
- * refclk, or FALSE. The returned values represent the clock equation:
- * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
- *
- * Target and reference clocks are specified in kHz.
- *
- * If match_clock is provided, then best_clock P divider must match the P
- * divider from @match_clock used for LVDS downclocking.
- */
-static bool
-pnv_find_best_dpll(const struct intel_limit *limit,
- struct intel_crtc_state *crtc_state,
- int target, int refclk, struct dpll *match_clock,
- struct dpll *best_clock)
-{
- struct drm_device *dev = crtc_state->uapi.crtc->dev;
- struct dpll clock;
- int err = target;
-
- memset(best_clock, 0, sizeof(*best_clock));
-
- clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
-
- for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
- clock.m1++) {
- for (clock.m2 = limit->m2.min;
- clock.m2 <= limit->m2.max; clock.m2++) {
- for (clock.n = limit->n.min;
- clock.n <= limit->n.max; clock.n++) {
- for (clock.p1 = limit->p1.min;
- clock.p1 <= limit->p1.max; clock.p1++) {
- int this_err;
-
- pnv_calc_dpll_params(refclk, &clock);
- if (!intel_pll_is_valid(to_i915(dev),
- limit,
- &clock))
- continue;
- if (match_clock &&
- clock.p != match_clock->p)
- continue;
-
- this_err = abs(clock.dot - target);
- if (this_err < err) {
- *best_clock = clock;
- err = this_err;
- }
- }
- }
- }
- }
-
- return (err != target);
-}
-
-/*
- * Returns a set of divisors for the desired target clock with the given
- * refclk, or FALSE. The returned values represent the clock equation:
- * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
- *
- * Target and reference clocks are specified in kHz.
- *
- * If match_clock is provided, then best_clock P divider must match the P
- * divider from @match_clock used for LVDS downclocking.
- */
-static bool
-g4x_find_best_dpll(const struct intel_limit *limit,
- struct intel_crtc_state *crtc_state,
- int target, int refclk, struct dpll *match_clock,
- struct dpll *best_clock)
-{
- struct drm_device *dev = crtc_state->uapi.crtc->dev;
- struct dpll clock;
- int max_n;
- bool found = false;
- /* approximately equals target * 0.00585 */
- int err_most = (target >> 8) + (target >> 9);
-
- memset(best_clock, 0, sizeof(*best_clock));
-
- clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
-
- max_n = limit->n.max;
- /* based on hardware requirement, prefer smaller n to precision */
- for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
- /* based on hardware requirement, prefere larger m1,m2 */
- for (clock.m1 = limit->m1.max;
- clock.m1 >= limit->m1.min; clock.m1--) {
- for (clock.m2 = limit->m2.max;
- clock.m2 >= limit->m2.min; clock.m2--) {
- for (clock.p1 = limit->p1.max;
- clock.p1 >= limit->p1.min; clock.p1--) {
- int this_err;
-
- i9xx_calc_dpll_params(refclk, &clock);
- if (!intel_pll_is_valid(to_i915(dev),
- limit,
- &clock))
- continue;
-
- this_err = abs(clock.dot - target);
- if (this_err < err_most) {
- *best_clock = clock;
- err_most = this_err;
- max_n = clock.n;
- found = true;
- }
- }
- }
- }
- }
- return found;
-}
-
-/*
- * Check if the calculated PLL configuration is more optimal compared to the
- * best configuration and error found so far. Return the calculated error.
- */
-static bool vlv_PLL_is_optimal(struct drm_device *dev, int target_freq,
- const struct dpll *calculated_clock,
- const struct dpll *best_clock,
- unsigned int best_error_ppm,
- unsigned int *error_ppm)
-{
- /*
- * For CHV ignore the error and consider only the P value.
- * Prefer a bigger P value based on HW requirements.
- */
- if (IS_CHERRYVIEW(to_i915(dev))) {
- *error_ppm = 0;
-
- return calculated_clock->p > best_clock->p;
- }
-
- if (drm_WARN_ON_ONCE(dev, !target_freq))
- return false;
-
- *error_ppm = div_u64(1000000ULL *
- abs(target_freq - calculated_clock->dot),
- target_freq);
- /*
- * Prefer a better P value over a better (smaller) error if the error
- * is small. Ensure this preference for future configurations too by
- * setting the error to 0.
- */
- if (*error_ppm < 100 && calculated_clock->p > best_clock->p) {
- *error_ppm = 0;
-
- return true;
- }
-
- return *error_ppm + 10 < best_error_ppm;
-}
-
-/*
- * Returns a set of divisors for the desired target clock with the given
- * refclk, or FALSE. The returned values represent the clock equation:
- * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
- */
-static bool
-vlv_find_best_dpll(const struct intel_limit *limit,
- struct intel_crtc_state *crtc_state,
- int target, int refclk, struct dpll *match_clock,
- struct dpll *best_clock)
-{
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
- struct drm_device *dev = crtc->base.dev;
- struct dpll clock;
- unsigned int bestppm = 1000000;
- /* min update 19.2 MHz */
- int max_n = min(limit->n.max, refclk / 19200);
- bool found = false;
-
- target *= 5; /* fast clock */
-
- memset(best_clock, 0, sizeof(*best_clock));
-
- /* based on hardware requirement, prefer smaller n to precision */
- for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
- for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
- for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
- clock.p2 -= clock.p2 > 10 ? 2 : 1) {
- clock.p = clock.p1 * clock.p2;
- /* based on hardware requirement, prefer bigger m1,m2 values */
- for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
- unsigned int ppm;
-
- clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
- refclk * clock.m1);
-
- vlv_calc_dpll_params(refclk, &clock);
-
- if (!intel_pll_is_valid(to_i915(dev),
- limit,
- &clock))
- continue;
-
- if (!vlv_PLL_is_optimal(dev, target,
- &clock,
- best_clock,
- bestppm, &ppm))
- continue;
-
- *best_clock = clock;
- bestppm = ppm;
- found = true;
- }
- }
- }
- }
-
- return found;
-}
-
-/*
- * Returns a set of divisors for the desired target clock with the given
- * refclk, or FALSE. The returned values represent the clock equation:
- * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
- */
-static bool
-chv_find_best_dpll(const struct intel_limit *limit,
- struct intel_crtc_state *crtc_state,
- int target, int refclk, struct dpll *match_clock,
- struct dpll *best_clock)
-{
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
- struct drm_device *dev = crtc->base.dev;
- unsigned int best_error_ppm;
- struct dpll clock;
- u64 m2;
- int found = false;
-
- memset(best_clock, 0, sizeof(*best_clock));
- best_error_ppm = 1000000;
-
- /*
- * Based on hardware doc, the n always set to 1, and m1 always
- * set to 2. If requires to support 200Mhz refclk, we need to
- * revisit this because n may not 1 anymore.
- */
- clock.n = 1;
- clock.m1 = 2;
- target *= 5; /* fast clock */
-
- for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
- for (clock.p2 = limit->p2.p2_fast;
- clock.p2 >= limit->p2.p2_slow;
- clock.p2 -= clock.p2 > 10 ? 2 : 1) {
- unsigned int error_ppm;
-
- clock.p = clock.p1 * clock.p2;
-
- m2 = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(target, clock.p * clock.n) << 22,
- refclk * clock.m1);
-
- if (m2 > INT_MAX/clock.m1)
- continue;
-
- clock.m2 = m2;
-
- chv_calc_dpll_params(refclk, &clock);
-
- if (!intel_pll_is_valid(to_i915(dev), limit, &clock))
- continue;
-
- if (!vlv_PLL_is_optimal(dev, target, &clock, best_clock,
- best_error_ppm, &error_ppm))
- continue;
-
- *best_clock = clock;
- best_error_ppm = error_ppm;
- found = true;
- }
- }
-
- return found;
-}
-
-bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state,
- struct dpll *best_clock)
-{
- int refclk = 100000;
- const struct intel_limit *limit = &intel_limits_bxt;
-
- return chv_find_best_dpll(limit, crtc_state,
- crtc_state->port_clock, refclk,
- NULL, best_clock);
-}
-
static bool pipe_scanline_is_moving(struct drm_i915_private *dev_priv,
enum pipe pipe)
{
@@ -1253,12 +495,6 @@ static void assert_planes_disabled(struct intel_crtc *crtc)
assert_plane_disabled(plane);
}
-static void assert_vblank_disabled(struct drm_crtc *crtc)
-{
- if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0))
- drm_crtc_vblank_put(crtc);
-}
-
void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
enum pipe pipe)
{
@@ -1610,7 +846,7 @@ static void ilk_enable_pch_transcoder(const struct intel_crtc_state *crtc_state)
val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
/* Configure frame start delay to match the CPU */
val &= ~TRANS_CHICKEN2_FRAME_START_DELAY_MASK;
- val |= TRANS_CHICKEN2_FRAME_START_DELAY(0);
+ val |= TRANS_CHICKEN2_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, reg, val);
}
@@ -1621,7 +857,7 @@ static void ilk_enable_pch_transcoder(const struct intel_crtc_state *crtc_state)
if (HAS_PCH_IBX(dev_priv)) {
/* Configure frame start delay to match the CPU */
val &= ~TRANS_FRAME_START_DELAY_MASK;
- val |= TRANS_FRAME_START_DELAY(0);
+ val |= TRANS_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
/*
* Make the BPC in transcoder be consistent with
@@ -1666,7 +902,7 @@ static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
/* Configure frame start delay to match the CPU */
val &= ~TRANS_CHICKEN2_FRAME_START_DELAY_MASK;
- val |= TRANS_CHICKEN2_FRAME_START_DELAY(0);
+ val |= TRANS_CHICKEN2_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, TRANS_CHICKEN2(PIPE_A), val);
val = TRANS_ENABLE;
@@ -1743,55 +979,6 @@ enum pipe intel_crtc_pch_transcoder(struct intel_crtc *crtc)
return crtc->pipe;
}
-static u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
- u32 mode_flags = crtc->mode_flags;
-
- /*
- * From Gen 11, In case of dsi cmd mode, frame counter wouldnt
- * have updated at the beginning of TE, if we want to use
- * the hw counter, then we would find it updated in only
- * the next TE, hence switching to sw counter.
- */
- if (mode_flags & (I915_MODE_FLAG_DSI_USE_TE0 | I915_MODE_FLAG_DSI_USE_TE1))
- return 0;
-
- /*
- * On i965gm the hardware frame counter reads
- * zero when the TV encoder is enabled :(
- */
- if (IS_I965GM(dev_priv) &&
- (crtc_state->output_types & BIT(INTEL_OUTPUT_TVOUT)))
- return 0;
-
- if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
- return 0xffffffff; /* full 32 bit counter */
- else if (INTEL_GEN(dev_priv) >= 3)
- return 0xffffff; /* only 24 bits of frame count */
- else
- return 0; /* Gen2 doesn't have a hardware frame counter */
-}
-
-void intel_crtc_vblank_on(const struct intel_crtc_state *crtc_state)
-{
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-
- assert_vblank_disabled(&crtc->base);
- drm_crtc_set_max_vblank_count(&crtc->base,
- intel_crtc_max_vblank_count(crtc_state));
- drm_crtc_vblank_on(&crtc->base);
-}
-
-void intel_crtc_vblank_off(const struct intel_crtc_state *crtc_state)
-{
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-
- drm_crtc_vblank_off(&crtc->base);
- assert_vblank_disabled(&crtc->base);
-}
-
void intel_enable_pipe(const struct intel_crtc_state *new_crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
@@ -1906,8 +1093,8 @@ static bool is_ccs_plane(const struct drm_framebuffer *fb, int plane)
static bool is_gen12_ccs_modifier(u64 modifier)
{
return modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
+ modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC ||
modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS;
-
}
static bool is_gen12_ccs_plane(const struct drm_framebuffer *fb, int plane)
@@ -1915,6 +1102,12 @@ static bool is_gen12_ccs_plane(const struct drm_framebuffer *fb, int plane)
return is_gen12_ccs_modifier(fb->modifier) && is_ccs_plane(fb, plane);
}
+static bool is_gen12_ccs_cc_plane(const struct drm_framebuffer *fb, int plane)
+{
+ return fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC &&
+ plane == 2;
+}
+
static bool is_aux_plane(const struct drm_framebuffer *fb, int plane)
{
if (is_ccs_modifier(fb->modifier))
@@ -1936,6 +1129,9 @@ static int ccs_to_main_plane(const struct drm_framebuffer *fb, int ccs_plane)
drm_WARN_ON(fb->dev, !is_ccs_modifier(fb->modifier) ||
ccs_plane < fb->format->num_planes / 2);
+ if (is_gen12_ccs_cc_plane(fb, ccs_plane))
+ return 0;
+
return ccs_plane - fb->format->num_planes / 2;
}
@@ -1954,7 +1150,7 @@ int intel_main_to_aux_plane(const struct drm_framebuffer *fb, int main_plane)
bool
intel_format_info_is_yuv_semiplanar(const struct drm_format_info *info,
- uint64_t modifier)
+ u64 modifier)
{
return info->is_yuv &&
info->num_planes == (is_ccs_modifier(modifier) ? 4 : 2);
@@ -1986,6 +1182,7 @@ intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
return 128;
fallthrough;
case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+ case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
if (is_ccs_plane(fb, color_plane))
return 64;
@@ -2142,6 +1339,7 @@ static unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
return intel_tile_row_size(fb, color_plane);
fallthrough;
case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+ case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
return 16 * 1024;
case I915_FORMAT_MOD_Y_TILED_CCS:
case I915_FORMAT_MOD_Yf_TILED_CCS:
@@ -2543,6 +1741,7 @@ static unsigned int intel_fb_modifier_to_tiling(u64 fb_modifier)
case I915_FORMAT_MOD_Y_TILED:
case I915_FORMAT_MOD_Y_TILED_CCS:
case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+ case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
return I915_TILING_Y;
default:
@@ -2621,6 +1820,25 @@ static const struct drm_format_info gen12_ccs_formats[] = {
.hsub = 2, .vsub = 2, .is_yuv = true },
};
+/*
+ * Same as gen12_ccs_formats[] above, but with additional surface used
+ * to pass Clear Color information in plane 2 with 64 bits of data.
+ */
+static const struct drm_format_info gen12_ccs_cc_formats[] = {
+ { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 3,
+ .char_per_block = { 4, 1, 0 }, .block_w = { 1, 2, 2 }, .block_h = { 1, 1, 1 },
+ .hsub = 1, .vsub = 1, },
+ { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 3,
+ .char_per_block = { 4, 1, 0 }, .block_w = { 1, 2, 2 }, .block_h = { 1, 1, 1 },
+ .hsub = 1, .vsub = 1, },
+ { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 3,
+ .char_per_block = { 4, 1, 0 }, .block_w = { 1, 2, 2 }, .block_h = { 1, 1, 1 },
+ .hsub = 1, .vsub = 1, .has_alpha = true },
+ { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 3,
+ .char_per_block = { 4, 1, 0 }, .block_w = { 1, 2, 2 }, .block_h = { 1, 1, 1 },
+ .hsub = 1, .vsub = 1, .has_alpha = true },
+};
+
static const struct drm_format_info *
lookup_format_info(const struct drm_format_info formats[],
int num_formats, u32 format)
@@ -2649,6 +1867,10 @@ intel_get_format_info(const struct drm_mode_fb_cmd2 *cmd)
return lookup_format_info(gen12_ccs_formats,
ARRAY_SIZE(gen12_ccs_formats),
cmd->pixel_format);
+ case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
+ return lookup_format_info(gen12_ccs_cc_formats,
+ ARRAY_SIZE(gen12_ccs_cc_formats),
+ cmd->pixel_format);
default:
return NULL;
}
@@ -2657,6 +1879,7 @@ intel_get_format_info(const struct drm_mode_fb_cmd2 *cmd)
bool is_ccs_modifier(u64 modifier)
{
return modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
+ modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC ||
modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
@@ -2875,7 +2098,7 @@ intel_fb_check_ccs_xy(struct drm_framebuffer *fb, int ccs_plane, int x, int y)
int ccs_x, ccs_y;
int main_x, main_y;
- if (!is_ccs_plane(fb, ccs_plane))
+ if (!is_ccs_plane(fb, ccs_plane) || is_gen12_ccs_cc_plane(fb, ccs_plane))
return 0;
intel_tile_dims(fb, ccs_plane, &tile_width, &tile_height);
@@ -3002,6 +2225,18 @@ intel_fill_fb_info(struct drm_i915_private *dev_priv,
int x, y;
int ret;
+ /*
+ * Plane 2 of Render Compression with Clear Color fb modifier
+ * is consumed by the driver and not passed to DE. Skip the
+ * arithmetic related to alignment and offset calculation.
+ */
+ if (is_gen12_ccs_cc_plane(fb, i)) {
+ if (IS_ALIGNED(fb->offsets[i], PAGE_SIZE))
+ continue;
+ else
+ return -EINVAL;
+ }
+
cpp = fb->format->cpp[i];
intel_fb_plane_dims(&width, &height, fb, i);
@@ -3943,7 +3178,8 @@ static int skl_check_ccs_aux_surface(struct intel_plane_state *plane_state)
int hsub, vsub;
int x, y;
- if (!is_ccs_plane(fb, ccs_plane))
+ if (!is_ccs_plane(fb, ccs_plane) ||
+ is_gen12_ccs_cc_plane(fb, ccs_plane))
continue;
intel_fb_plane_get_subsampling(&main_hsub, &main_vsub, fb,
@@ -4183,6 +3419,7 @@ static u32 skl_plane_ctl_tiling(u64 fb_modifier)
case I915_FORMAT_MOD_Y_TILED:
return PLANE_CTL_TILED_Y;
case I915_FORMAT_MOD_Y_TILED_CCS:
+ case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
return PLANE_CTL_TILED_Y | PLANE_CTL_RENDER_DECOMPRESSION_ENABLE;
case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
return PLANE_CTL_TILED_Y |
@@ -4243,9 +3480,6 @@ u32 skl_plane_ctl_crtc(const struct intel_crtc_state *crtc_state)
struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
u32 plane_ctl = 0;
- if (crtc_state->uapi.async_flip)
- plane_ctl |= PLANE_CTL_ASYNC_FLIP;
-
if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
return plane_ctl;
@@ -4532,532 +3766,6 @@ static void icl_set_pipe_chicken(struct intel_crtc *crtc)
intel_de_write(dev_priv, PIPE_CHICKEN(pipe), tmp);
}
-static void intel_fdi_normal_train(struct intel_crtc *crtc)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- enum pipe pipe = crtc->pipe;
- i915_reg_t reg;
- u32 temp;
-
- /* enable normal train */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- if (IS_IVYBRIDGE(dev_priv)) {
- temp &= ~FDI_LINK_TRAIN_NONE_IVB;
- temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
- }
- intel_de_write(dev_priv, reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- if (HAS_PCH_CPT(dev_priv)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_NORMAL_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_NONE;
- }
- intel_de_write(dev_priv, reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
-
- /* wait one idle pattern time */
- intel_de_posting_read(dev_priv, reg);
- udelay(1000);
-
- /* IVB wants error correction enabled */
- if (IS_IVYBRIDGE(dev_priv))
- intel_de_write(dev_priv, reg,
- intel_de_read(dev_priv, reg) | FDI_FS_ERRC_ENABLE | FDI_FE_ERRC_ENABLE);
-}
-
-/* The FDI link training functions for ILK/Ibexpeak. */
-static void ilk_fdi_link_train(struct intel_crtc *crtc,
- const struct intel_crtc_state *crtc_state)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- enum pipe pipe = crtc->pipe;
- i915_reg_t reg;
- u32 temp, tries;
-
- /* FDI needs bits from pipe first */
- assert_pipe_enabled(dev_priv, crtc_state->cpu_transcoder);
-
- /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
- for train result */
- reg = FDI_RX_IMR(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_RX_SYMBOL_LOCK;
- temp &= ~FDI_RX_BIT_LOCK;
- intel_de_write(dev_priv, reg, temp);
- intel_de_read(dev_priv, reg);
- udelay(150);
-
- /* enable CPU FDI TX and PCH FDI RX */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_DP_PORT_WIDTH_MASK;
- temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- intel_de_write(dev_priv, reg, temp | FDI_TX_ENABLE);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- intel_de_write(dev_priv, reg, temp | FDI_RX_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(150);
-
- /* Ironlake workaround, enable clock pointer after FDI enable*/
- intel_de_write(dev_priv, FDI_RX_CHICKEN(pipe),
- FDI_RX_PHASE_SYNC_POINTER_OVR);
- intel_de_write(dev_priv, FDI_RX_CHICKEN(pipe),
- FDI_RX_PHASE_SYNC_POINTER_OVR | FDI_RX_PHASE_SYNC_POINTER_EN);
-
- reg = FDI_RX_IIR(pipe);
- for (tries = 0; tries < 5; tries++) {
- temp = intel_de_read(dev_priv, reg);
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
-
- if ((temp & FDI_RX_BIT_LOCK)) {
- drm_dbg_kms(&dev_priv->drm, "FDI train 1 done.\n");
- intel_de_write(dev_priv, reg, temp | FDI_RX_BIT_LOCK);
- break;
- }
- }
- if (tries == 5)
- drm_err(&dev_priv->drm, "FDI train 1 fail!\n");
-
- /* Train 2 */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
- intel_de_write(dev_priv, reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(150);
-
- reg = FDI_RX_IIR(pipe);
- for (tries = 0; tries < 5; tries++) {
- temp = intel_de_read(dev_priv, reg);
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
-
- if (temp & FDI_RX_SYMBOL_LOCK) {
- intel_de_write(dev_priv, reg,
- temp | FDI_RX_SYMBOL_LOCK);
- drm_dbg_kms(&dev_priv->drm, "FDI train 2 done.\n");
- break;
- }
- }
- if (tries == 5)
- drm_err(&dev_priv->drm, "FDI train 2 fail!\n");
-
- drm_dbg_kms(&dev_priv->drm, "FDI train done\n");
-
-}
-
-static const int snb_b_fdi_train_param[] = {
- FDI_LINK_TRAIN_400MV_0DB_SNB_B,
- FDI_LINK_TRAIN_400MV_6DB_SNB_B,
- FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
- FDI_LINK_TRAIN_800MV_0DB_SNB_B,
-};
-
-/* The FDI link training functions for SNB/Cougarpoint. */
-static void gen6_fdi_link_train(struct intel_crtc *crtc,
- const struct intel_crtc_state *crtc_state)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- enum pipe pipe = crtc->pipe;
- i915_reg_t reg;
- u32 temp, i, retry;
-
- /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
- for train result */
- reg = FDI_RX_IMR(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_RX_SYMBOL_LOCK;
- temp &= ~FDI_RX_BIT_LOCK;
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(150);
-
- /* enable CPU FDI TX and PCH FDI RX */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_DP_PORT_WIDTH_MASK;
- temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- /* SNB-B */
- temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
- intel_de_write(dev_priv, reg, temp | FDI_TX_ENABLE);
-
- intel_de_write(dev_priv, FDI_RX_MISC(pipe),
- FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- if (HAS_PCH_CPT(dev_priv)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- }
- intel_de_write(dev_priv, reg, temp | FDI_RX_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(150);
-
- for (i = 0; i < 4; i++) {
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- temp |= snb_b_fdi_train_param[i];
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(500);
-
- for (retry = 0; retry < 5; retry++) {
- reg = FDI_RX_IIR(pipe);
- temp = intel_de_read(dev_priv, reg);
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
- if (temp & FDI_RX_BIT_LOCK) {
- intel_de_write(dev_priv, reg,
- temp | FDI_RX_BIT_LOCK);
- drm_dbg_kms(&dev_priv->drm,
- "FDI train 1 done.\n");
- break;
- }
- udelay(50);
- }
- if (retry < 5)
- break;
- }
- if (i == 4)
- drm_err(&dev_priv->drm, "FDI train 1 fail!\n");
-
- /* Train 2 */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
- if (IS_GEN(dev_priv, 6)) {
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- /* SNB-B */
- temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
- }
- intel_de_write(dev_priv, reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- if (HAS_PCH_CPT(dev_priv)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
- }
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(150);
-
- for (i = 0; i < 4; i++) {
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- temp |= snb_b_fdi_train_param[i];
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(500);
-
- for (retry = 0; retry < 5; retry++) {
- reg = FDI_RX_IIR(pipe);
- temp = intel_de_read(dev_priv, reg);
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
- if (temp & FDI_RX_SYMBOL_LOCK) {
- intel_de_write(dev_priv, reg,
- temp | FDI_RX_SYMBOL_LOCK);
- drm_dbg_kms(&dev_priv->drm,
- "FDI train 2 done.\n");
- break;
- }
- udelay(50);
- }
- if (retry < 5)
- break;
- }
- if (i == 4)
- drm_err(&dev_priv->drm, "FDI train 2 fail!\n");
-
- drm_dbg_kms(&dev_priv->drm, "FDI train done.\n");
-}
-
-/* Manual link training for Ivy Bridge A0 parts */
-static void ivb_manual_fdi_link_train(struct intel_crtc *crtc,
- const struct intel_crtc_state *crtc_state)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- enum pipe pipe = crtc->pipe;
- i915_reg_t reg;
- u32 temp, i, j;
-
- /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
- for train result */
- reg = FDI_RX_IMR(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_RX_SYMBOL_LOCK;
- temp &= ~FDI_RX_BIT_LOCK;
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(150);
-
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR before link train 0x%x\n",
- intel_de_read(dev_priv, FDI_RX_IIR(pipe)));
-
- /* Try each vswing and preemphasis setting twice before moving on */
- for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
- /* disable first in case we need to retry */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
- temp &= ~FDI_TX_ENABLE;
- intel_de_write(dev_priv, reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_AUTO;
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp &= ~FDI_RX_ENABLE;
- intel_de_write(dev_priv, reg, temp);
-
- /* enable CPU FDI TX and PCH FDI RX */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_DP_PORT_WIDTH_MASK;
- temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
- temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- temp |= snb_b_fdi_train_param[j/2];
- temp |= FDI_COMPOSITE_SYNC;
- intel_de_write(dev_priv, reg, temp | FDI_TX_ENABLE);
-
- intel_de_write(dev_priv, FDI_RX_MISC(pipe),
- FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
- temp |= FDI_COMPOSITE_SYNC;
- intel_de_write(dev_priv, reg, temp | FDI_RX_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(1); /* should be 0.5us */
-
- for (i = 0; i < 4; i++) {
- reg = FDI_RX_IIR(pipe);
- temp = intel_de_read(dev_priv, reg);
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
-
- if (temp & FDI_RX_BIT_LOCK ||
- (intel_de_read(dev_priv, reg) & FDI_RX_BIT_LOCK)) {
- intel_de_write(dev_priv, reg,
- temp | FDI_RX_BIT_LOCK);
- drm_dbg_kms(&dev_priv->drm,
- "FDI train 1 done, level %i.\n",
- i);
- break;
- }
- udelay(1); /* should be 0.5us */
- }
- if (i == 4) {
- drm_dbg_kms(&dev_priv->drm,
- "FDI train 1 fail on vswing %d\n", j / 2);
- continue;
- }
-
- /* Train 2 */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_NONE_IVB;
- temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
- intel_de_write(dev_priv, reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(2); /* should be 1.5us */
-
- for (i = 0; i < 4; i++) {
- reg = FDI_RX_IIR(pipe);
- temp = intel_de_read(dev_priv, reg);
- drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
-
- if (temp & FDI_RX_SYMBOL_LOCK ||
- (intel_de_read(dev_priv, reg) & FDI_RX_SYMBOL_LOCK)) {
- intel_de_write(dev_priv, reg,
- temp | FDI_RX_SYMBOL_LOCK);
- drm_dbg_kms(&dev_priv->drm,
- "FDI train 2 done, level %i.\n",
- i);
- goto train_done;
- }
- udelay(2); /* should be 1.5us */
- }
- if (i == 4)
- drm_dbg_kms(&dev_priv->drm,
- "FDI train 2 fail on vswing %d\n", j / 2);
- }
-
-train_done:
- drm_dbg_kms(&dev_priv->drm, "FDI train done.\n");
-}
-
-static void ilk_fdi_pll_enable(const struct intel_crtc_state *crtc_state)
-{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->uapi.crtc);
- struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
- enum pipe pipe = intel_crtc->pipe;
- i915_reg_t reg;
- u32 temp;
-
- /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
- temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
- temp |= (intel_de_read(dev_priv, PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
- intel_de_write(dev_priv, reg, temp | FDI_RX_PLL_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(200);
-
- /* Switch from Rawclk to PCDclk */
- temp = intel_de_read(dev_priv, reg);
- intel_de_write(dev_priv, reg, temp | FDI_PCDCLK);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(200);
-
- /* Enable CPU FDI TX PLL, always on for Ironlake */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- if ((temp & FDI_TX_PLL_ENABLE) == 0) {
- intel_de_write(dev_priv, reg, temp | FDI_TX_PLL_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(100);
- }
-}
-
-static void ilk_fdi_pll_disable(struct intel_crtc *intel_crtc)
-{
- struct drm_device *dev = intel_crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- enum pipe pipe = intel_crtc->pipe;
- i915_reg_t reg;
- u32 temp;
-
- /* Switch from PCDclk to Rawclk */
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- intel_de_write(dev_priv, reg, temp & ~FDI_PCDCLK);
-
- /* Disable CPU FDI TX PLL */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- intel_de_write(dev_priv, reg, temp & ~FDI_TX_PLL_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(100);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- intel_de_write(dev_priv, reg, temp & ~FDI_RX_PLL_ENABLE);
-
- /* Wait for the clocks to turn off. */
- intel_de_posting_read(dev_priv, reg);
- udelay(100);
-}
-
-static void ilk_fdi_disable(struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum pipe pipe = crtc->pipe;
- i915_reg_t reg;
- u32 temp;
-
- /* disable CPU FDI tx and PCH FDI rx */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- intel_de_write(dev_priv, reg, temp & ~FDI_TX_ENABLE);
- intel_de_posting_read(dev_priv, reg);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~(0x7 << 16);
- temp |= (intel_de_read(dev_priv, PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
- intel_de_write(dev_priv, reg, temp & ~FDI_RX_ENABLE);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(100);
-
- /* Ironlake workaround, disable clock pointer after downing FDI */
- if (HAS_PCH_IBX(dev_priv))
- intel_de_write(dev_priv, FDI_RX_CHICKEN(pipe),
- FDI_RX_PHASE_SYNC_POINTER_OVR);
-
- /* still set train pattern 1 */
- reg = FDI_TX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- intel_de_write(dev_priv, reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = intel_de_read(dev_priv, reg);
- if (HAS_PCH_CPT(dev_priv)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- }
- /* BPC in FDI rx is consistent with that in PIPECONF */
- temp &= ~(0x07 << 16);
- temp |= (intel_de_read(dev_priv, PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
- intel_de_write(dev_priv, reg, temp);
-
- intel_de_posting_read(dev_priv, reg);
- udelay(100);
-}
-
bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv)
{
struct drm_crtc *crtc;
@@ -5288,7 +3996,7 @@ static void ivb_update_fdi_bc_bifurcation(const struct intel_crtc_state *crtc_st
* Finds the encoder associated with the given CRTC. This can only be
* used when we know that the CRTC isn't feeding multiple encoders!
*/
-static struct intel_encoder *
+struct intel_encoder *
intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
const struct intel_crtc_state *crtc_state)
{
@@ -5807,7 +4515,7 @@ static void cnl_program_nearest_filter_coefs(struct drm_i915_private *dev_priv,
intel_de_write_fw(dev_priv, CNL_PS_COEF_INDEX_SET(pipe, id, set), 0);
}
-inline u32 skl_scaler_get_filter_select(enum drm_scaling_filter filter, int set)
+u32 skl_scaler_get_filter_select(enum drm_scaling_filter filter, int set)
{
if (filter == DRM_SCALING_FILTER_NEAREST_NEIGHBOR) {
return (PS_FILTER_PROGRAMMED |
@@ -6126,41 +4834,72 @@ static void intel_post_plane_update(struct intel_atomic_state *state,
icl_wa_scalerclkgating(dev_priv, pipe, false);
}
-static void skl_disable_async_flip_wa(struct intel_atomic_state *state,
- struct intel_crtc *crtc,
- const struct intel_crtc_state *new_crtc_state)
+static void intel_crtc_enable_flip_done(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ const struct intel_crtc_state *crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ u8 update_planes = crtc_state->update_planes;
+ const struct intel_plane_state *plane_state;
struct intel_plane *plane;
- struct intel_plane_state *new_plane_state;
int i;
- for_each_new_intel_plane_in_state(state, plane, new_plane_state, i) {
- u32 update_mask = new_crtc_state->update_planes;
- u32 plane_ctl, surf_addr;
- enum plane_id plane_id;
- unsigned long irqflags;
- enum pipe pipe;
-
- if (crtc->pipe != plane->pipe ||
- !(update_mask & BIT(plane->id)))
- continue;
+ for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+ if (plane->enable_flip_done &&
+ plane->pipe == crtc->pipe &&
+ update_planes & BIT(plane->id))
+ plane->enable_flip_done(plane);
+ }
+}
- plane_id = plane->id;
- pipe = plane->pipe;
+static void intel_crtc_disable_flip_done(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ const struct intel_crtc_state *crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ u8 update_planes = crtc_state->update_planes;
+ const struct intel_plane_state *plane_state;
+ struct intel_plane *plane;
+ int i;
- spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
- plane_ctl = intel_de_read_fw(dev_priv, PLANE_CTL(pipe, plane_id));
- surf_addr = intel_de_read_fw(dev_priv, PLANE_SURF(pipe, plane_id));
+ for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+ if (plane->disable_flip_done &&
+ plane->pipe == crtc->pipe &&
+ update_planes & BIT(plane->id))
+ plane->disable_flip_done(plane);
+ }
+}
- plane_ctl &= ~PLANE_CTL_ASYNC_FLIP;
+static void intel_crtc_async_flip_disable_wa(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ struct drm_i915_private *i915 = to_i915(state->base.dev);
+ const struct intel_crtc_state *old_crtc_state =
+ intel_atomic_get_old_crtc_state(state, crtc);
+ const struct intel_crtc_state *new_crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ u8 update_planes = new_crtc_state->update_planes;
+ const struct intel_plane_state *old_plane_state;
+ struct intel_plane *plane;
+ bool need_vbl_wait = false;
+ int i;
- intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
- intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), surf_addr);
- spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
+ for_each_old_intel_plane_in_state(state, plane, old_plane_state, i) {
+ if (plane->need_async_flip_disable_wa &&
+ plane->pipe == crtc->pipe &&
+ update_planes & BIT(plane->id)) {
+ /*
+ * Apart from the async flip bit we want to
+ * preserve the old state for the plane.
+ */
+ plane->async_flip(plane, old_crtc_state,
+ old_plane_state, false);
+ need_vbl_wait = true;
+ }
}
- intel_wait_for_vblank(dev_priv, crtc->pipe);
+ if (need_vbl_wait)
+ intel_wait_for_vblank(i915, crtc->pipe);
}
static void intel_pre_plane_update(struct intel_atomic_state *state,
@@ -6253,10 +4992,8 @@ static void intel_pre_plane_update(struct intel_atomic_state *state,
* WA for platforms where async address update enable bit
* is double buffered and only latched at start of vblank.
*/
- if (old_crtc_state->uapi.async_flip &&
- !new_crtc_state->uapi.async_flip &&
- IS_GEN_RANGE(dev_priv, 9, 10))
- skl_disable_async_flip_wa(state, crtc, new_crtc_state);
+ if (old_crtc_state->uapi.async_flip && !new_crtc_state->uapi.async_flip)
+ intel_crtc_async_flip_disable_wa(state, crtc);
}
static void intel_crtc_disable_planes(struct intel_atomic_state *state,
@@ -6676,7 +5413,7 @@ static void hsw_set_frame_start_delay(const struct intel_crtc_state *crtc_state)
val = intel_de_read(dev_priv, reg);
val &= ~HSW_FRAME_START_DELAY_MASK;
- val |= HSW_FRAME_START_DELAY(0);
+ val |= HSW_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, reg, val);
}
@@ -7464,143 +6201,6 @@ static void intel_connector_verify_state(struct intel_crtc_state *crtc_state,
}
}
-static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state)
-{
- if (crtc_state->hw.enable && crtc_state->has_pch_encoder)
- return crtc_state->fdi_lanes;
-
- return 0;
-}
-
-static int ilk_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
- struct intel_crtc_state *pipe_config)
-{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct drm_atomic_state *state = pipe_config->uapi.state;
- struct intel_crtc *other_crtc;
- struct intel_crtc_state *other_crtc_state;
-
- drm_dbg_kms(&dev_priv->drm,
- "checking fdi config on pipe %c, lanes %i\n",
- pipe_name(pipe), pipe_config->fdi_lanes);
- if (pipe_config->fdi_lanes > 4) {
- drm_dbg_kms(&dev_priv->drm,
- "invalid fdi lane config on pipe %c: %i lanes\n",
- pipe_name(pipe), pipe_config->fdi_lanes);
- return -EINVAL;
- }
-
- if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
- if (pipe_config->fdi_lanes > 2) {
- drm_dbg_kms(&dev_priv->drm,
- "only 2 lanes on haswell, required: %i lanes\n",
- pipe_config->fdi_lanes);
- return -EINVAL;
- } else {
- return 0;
- }
- }
-
- if (INTEL_NUM_PIPES(dev_priv) == 2)
- return 0;
-
- /* Ivybridge 3 pipe is really complicated */
- switch (pipe) {
- case PIPE_A:
- return 0;
- case PIPE_B:
- if (pipe_config->fdi_lanes <= 2)
- return 0;
-
- other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_C);
- other_crtc_state =
- intel_atomic_get_crtc_state(state, other_crtc);
- if (IS_ERR(other_crtc_state))
- return PTR_ERR(other_crtc_state);
-
- if (pipe_required_fdi_lanes(other_crtc_state) > 0) {
- drm_dbg_kms(&dev_priv->drm,
- "invalid shared fdi lane config on pipe %c: %i lanes\n",
- pipe_name(pipe), pipe_config->fdi_lanes);
- return -EINVAL;
- }
- return 0;
- case PIPE_C:
- if (pipe_config->fdi_lanes > 2) {
- drm_dbg_kms(&dev_priv->drm,
- "only 2 lanes on pipe %c: required %i lanes\n",
- pipe_name(pipe), pipe_config->fdi_lanes);
- return -EINVAL;
- }
-
- other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_B);
- other_crtc_state =
- intel_atomic_get_crtc_state(state, other_crtc);
- if (IS_ERR(other_crtc_state))
- return PTR_ERR(other_crtc_state);
-
- if (pipe_required_fdi_lanes(other_crtc_state) > 2) {
- drm_dbg_kms(&dev_priv->drm,
- "fdi link B uses too many lanes to enable link C\n");
- return -EINVAL;
- }
- return 0;
- default:
- BUG();
- }
-}
-
-#define RETRY 1
-static int ilk_fdi_compute_config(struct intel_crtc *intel_crtc,
- struct intel_crtc_state *pipe_config)
-{
- struct drm_device *dev = intel_crtc->base.dev;
- struct drm_i915_private *i915 = to_i915(dev);
- const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
- int lane, link_bw, fdi_dotclock, ret;
- bool needs_recompute = false;
-
-retry:
- /* FDI is a binary signal running at ~2.7GHz, encoding
- * each output octet as 10 bits. The actual frequency
- * is stored as a divider into a 100MHz clock, and the
- * mode pixel clock is stored in units of 1KHz.
- * Hence the bw of each lane in terms of the mode signal
- * is:
- */
- link_bw = intel_fdi_link_freq(i915, pipe_config);
-
- fdi_dotclock = adjusted_mode->crtc_clock;
-
- lane = ilk_get_lanes_required(fdi_dotclock, link_bw,
- pipe_config->pipe_bpp);
-
- pipe_config->fdi_lanes = lane;
-
- intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
- link_bw, &pipe_config->fdi_m_n, false, false);
-
- ret = ilk_check_fdi_lanes(dev, intel_crtc->pipe, pipe_config);
- if (ret == -EDEADLK)
- return ret;
-
- if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) {
- pipe_config->pipe_bpp -= 2*3;
- drm_dbg_kms(&i915->drm,
- "fdi link bw constraint, reducing pipe bpp to %i\n",
- pipe_config->pipe_bpp);
- needs_recompute = true;
- pipe_config->bw_constrained = true;
-
- goto retry;
- }
-
- if (needs_recompute)
- return RETRY;
-
- return ret;
-}
-
bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -7832,19 +6432,6 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
return -EINVAL;
}
- if ((pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
- pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) &&
- pipe_config->hw.ctm) {
- /*
- * There is only one pipe CSC unit per pipe, and we need that
- * for output conversion from RGB->YCBCR. So if CTM is already
- * applied we can't support YCBCR420 output.
- */
- drm_dbg_kms(&dev_priv->drm,
- "YCBCR420 and CTM together are not possible\n");
- return -EINVAL;
- }
-
/*
* Pipe horizontal size must be even in:
* - DVO ganged mode
@@ -7956,51 +6543,6 @@ static void intel_panel_sanitize_ssc(struct drm_i915_private *dev_priv)
}
}
-static bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
-{
- if (dev_priv->params.panel_use_ssc >= 0)
- return dev_priv->params.panel_use_ssc != 0;
- return dev_priv->vbt.lvds_use_ssc
- && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
-}
-
-static u32 pnv_dpll_compute_fp(struct dpll *dpll)
-{
- return (1 << dpll->n) << 16 | dpll->m2;
-}
-
-static u32 i9xx_dpll_compute_fp(struct dpll *dpll)
-{
- return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
-}
-
-static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state,
- struct dpll *reduced_clock)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- u32 fp, fp2 = 0;
-
- if (IS_PINEVIEW(dev_priv)) {
- fp = pnv_dpll_compute_fp(&crtc_state->dpll);
- if (reduced_clock)
- fp2 = pnv_dpll_compute_fp(reduced_clock);
- } else {
- fp = i9xx_dpll_compute_fp(&crtc_state->dpll);
- if (reduced_clock)
- fp2 = i9xx_dpll_compute_fp(reduced_clock);
- }
-
- crtc_state->dpll_hw_state.fp0 = fp;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
- reduced_clock) {
- crtc_state->dpll_hw_state.fp1 = fp2;
- } else {
- crtc_state->dpll_hw_state.fp1 = fp;
- }
-}
-
static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
pipe)
{
@@ -8125,39 +6667,6 @@ void intel_dp_set_m_n(const struct intel_crtc_state *crtc_state, enum link_m_n_s
intel_cpu_transcoder_set_m_n(crtc_state, dp_m_n, dp_m2_n2);
}
-static void vlv_compute_dpll(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config)
-{
- pipe_config->dpll_hw_state.dpll = DPLL_INTEGRATED_REF_CLK_VLV |
- DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
- if (crtc->pipe != PIPE_A)
- pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
-
- /* DPLL not used with DSI, but still need the rest set up */
- if (!intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DSI))
- pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE |
- DPLL_EXT_BUFFER_ENABLE_VLV;
-
- pipe_config->dpll_hw_state.dpll_md =
- (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
-}
-
-static void chv_compute_dpll(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config)
-{
- pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLK_CHV |
- DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
- if (crtc->pipe != PIPE_A)
- pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
-
- /* DPLL not used with DSI, but still need the rest set up */
- if (!intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DSI))
- pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE;
-
- pipe_config->dpll_hw_state.dpll_md =
- (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
-}
-
static void vlv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config)
{
@@ -8417,128 +6926,7 @@ void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe)
vlv_disable_pll(dev_priv, pipe);
}
-static void i9xx_compute_dpll(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state,
- struct dpll *reduced_clock)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- u32 dpll;
- struct dpll *clock = &crtc_state->dpll;
-
- i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock);
-
- dpll = DPLL_VGA_MODE_DIS;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS))
- dpll |= DPLLB_MODE_LVDS;
- else
- dpll |= DPLLB_MODE_DAC_SERIAL;
-
- if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
- IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) {
- dpll |= (crtc_state->pixel_multiplier - 1)
- << SDVO_MULTIPLIER_SHIFT_HIRES;
- }
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO) ||
- intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
- dpll |= DPLL_SDVO_HIGH_SPEED;
-
- if (intel_crtc_has_dp_encoder(crtc_state))
- dpll |= DPLL_SDVO_HIGH_SPEED;
-
- /* compute bitmask from p1 value */
- if (IS_PINEVIEW(dev_priv))
- dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
- else {
- dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- if (IS_G4X(dev_priv) && reduced_clock)
- dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
- }
- switch (clock->p2) {
- case 5:
- dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
- break;
- case 7:
- dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
- break;
- case 10:
- dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
- break;
- case 14:
- dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
- break;
- }
- if (INTEL_GEN(dev_priv) >= 4)
- dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
-
- if (crtc_state->sdvo_tv_clock)
- dpll |= PLL_REF_INPUT_TVCLKINBC;
- else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
- intel_panel_use_ssc(dev_priv))
- dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
- else
- dpll |= PLL_REF_INPUT_DREFCLK;
-
- dpll |= DPLL_VCO_ENABLE;
- crtc_state->dpll_hw_state.dpll = dpll;
-
- if (INTEL_GEN(dev_priv) >= 4) {
- u32 dpll_md = (crtc_state->pixel_multiplier - 1)
- << DPLL_MD_UDI_MULTIPLIER_SHIFT;
- crtc_state->dpll_hw_state.dpll_md = dpll_md;
- }
-}
-
-static void i8xx_compute_dpll(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state,
- struct dpll *reduced_clock)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- u32 dpll;
- struct dpll *clock = &crtc_state->dpll;
- i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock);
-
- dpll = DPLL_VGA_MODE_DIS;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- } else {
- if (clock->p1 == 2)
- dpll |= PLL_P1_DIVIDE_BY_TWO;
- else
- dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- if (clock->p2 == 4)
- dpll |= PLL_P2_DIVIDE_BY_4;
- }
-
- /*
- * Bspec:
- * "[Almador Errata}: For the correct operation of the muxed DVO pins
- * (GDEVSELB/I2Cdata, GIRDBY/I2CClk) and (GFRAMEB/DVI_Data,
- * GTRDYB/DVI_Clk): Bit 31 (DPLL VCO Enable) and Bit 30 (2X Clock
- * Enable) must be set to “1” in both the DPLL A Control Register
- * (06014h-06017h) and DPLL B Control Register (06018h-0601Bh)."
- *
- * For simplicity We simply keep both bits always enabled in
- * both DPLLS. The spec says we should disable the DVO 2X clock
- * when not needed, but this seems to work fine in practice.
- */
- if (IS_I830(dev_priv) ||
- intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DVO))
- dpll |= DPLL_DVO_2X_MODE;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
- intel_panel_use_ssc(dev_priv))
- dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
- else
- dpll |= PLL_REF_INPUT_DREFCLK;
-
- dpll |= DPLL_VCO_ENABLE;
- crtc_state->dpll_hw_state.dpll = dpll;
-}
static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
{
@@ -8738,214 +7126,12 @@ static void i9xx_set_pipeconf(const struct intel_crtc_state *crtc_state)
pipeconf |= PIPECONF_GAMMA_MODE(crtc_state->gamma_mode);
- pipeconf |= PIPECONF_FRAME_START_DELAY(0);
+ pipeconf |= PIPECONF_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, PIPECONF(crtc->pipe), pipeconf);
intel_de_posting_read(dev_priv, PIPECONF(crtc->pipe));
}
-static int i8xx_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- const struct intel_limit *limit;
- int refclk = 48000;
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- if (intel_panel_use_ssc(dev_priv)) {
- refclk = dev_priv->vbt.lvds_ssc_freq;
- drm_dbg_kms(&dev_priv->drm,
- "using SSC reference clock of %d kHz\n",
- refclk);
- }
-
- limit = &intel_limits_i8xx_lvds;
- } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DVO)) {
- limit = &intel_limits_i8xx_dvo;
- } else {
- limit = &intel_limits_i8xx_dac;
- }
-
- if (!crtc_state->clock_set &&
- !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&dev_priv->drm,
- "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- i8xx_compute_dpll(crtc, crtc_state, NULL);
-
- return 0;
-}
-
-static int g4x_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- const struct intel_limit *limit;
- int refclk = 96000;
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- if (intel_panel_use_ssc(dev_priv)) {
- refclk = dev_priv->vbt.lvds_ssc_freq;
- drm_dbg_kms(&dev_priv->drm,
- "using SSC reference clock of %d kHz\n",
- refclk);
- }
-
- if (intel_is_dual_link_lvds(dev_priv))
- limit = &intel_limits_g4x_dual_channel_lvds;
- else
- limit = &intel_limits_g4x_single_channel_lvds;
- } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) ||
- intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
- limit = &intel_limits_g4x_hdmi;
- } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO)) {
- limit = &intel_limits_g4x_sdvo;
- } else {
- /* The option is for other outputs */
- limit = &intel_limits_i9xx_sdvo;
- }
-
- if (!crtc_state->clock_set &&
- !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&dev_priv->drm,
- "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- i9xx_compute_dpll(crtc, crtc_state, NULL);
-
- return 0;
-}
-
-static int pnv_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- const struct intel_limit *limit;
- int refclk = 96000;
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- if (intel_panel_use_ssc(dev_priv)) {
- refclk = dev_priv->vbt.lvds_ssc_freq;
- drm_dbg_kms(&dev_priv->drm,
- "using SSC reference clock of %d kHz\n",
- refclk);
- }
-
- limit = &pnv_limits_lvds;
- } else {
- limit = &pnv_limits_sdvo;
- }
-
- if (!crtc_state->clock_set &&
- !pnv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&dev_priv->drm,
- "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- i9xx_compute_dpll(crtc, crtc_state, NULL);
-
- return 0;
-}
-
-static int i9xx_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- const struct intel_limit *limit;
- int refclk = 96000;
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- if (intel_panel_use_ssc(dev_priv)) {
- refclk = dev_priv->vbt.lvds_ssc_freq;
- drm_dbg_kms(&dev_priv->drm,
- "using SSC reference clock of %d kHz\n",
- refclk);
- }
-
- limit = &intel_limits_i9xx_lvds;
- } else {
- limit = &intel_limits_i9xx_sdvo;
- }
-
- if (!crtc_state->clock_set &&
- !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&dev_priv->drm,
- "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- i9xx_compute_dpll(crtc, crtc_state, NULL);
-
- return 0;
-}
-
-static int chv_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- int refclk = 100000;
- const struct intel_limit *limit = &intel_limits_chv;
- struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- if (!crtc_state->clock_set &&
- !chv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&i915->drm, "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- chv_compute_dpll(crtc, crtc_state);
-
- return 0;
-}
-
-static int vlv_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- int refclk = 100000;
- const struct intel_limit *limit = &intel_limits_vlv;
- struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- if (!crtc_state->clock_set &&
- !vlv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&i915->drm, "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- vlv_compute_dpll(crtc, crtc_state);
-
- return 0;
-}
-
static bool i9xx_has_pfit(struct drm_i915_private *dev_priv)
{
if (IS_I830(dev_priv))
@@ -9847,7 +8033,7 @@ static void ilk_set_pipeconf(const struct intel_crtc_state *crtc_state)
val |= PIPECONF_GAMMA_MODE(crtc_state->gamma_mode);
- val |= PIPECONF_FRAME_START_DELAY(0);
+ val |= PIPECONF_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, PIPECONF(pipe), val);
intel_de_posting_read(dev_priv, PIPECONF(pipe));
@@ -9955,172 +8141,6 @@ int ilk_get_lanes_required(int target_clock, int link_bw, int bpp)
return DIV_ROUND_UP(bps, link_bw * 8);
}
-static bool ilk_needs_fb_cb_tune(struct dpll *dpll, int factor)
-{
- return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
-}
-
-static void ilk_compute_dpll(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state,
- struct dpll *reduced_clock)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- u32 dpll, fp, fp2;
- int factor;
-
- /* Enable autotuning of the PLL clock (if permissible) */
- factor = 21;
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- if ((intel_panel_use_ssc(dev_priv) &&
- dev_priv->vbt.lvds_ssc_freq == 100000) ||
- (HAS_PCH_IBX(dev_priv) &&
- intel_is_dual_link_lvds(dev_priv)))
- factor = 25;
- } else if (crtc_state->sdvo_tv_clock) {
- factor = 20;
- }
-
- fp = i9xx_dpll_compute_fp(&crtc_state->dpll);
-
- if (ilk_needs_fb_cb_tune(&crtc_state->dpll, factor))
- fp |= FP_CB_TUNE;
-
- if (reduced_clock) {
- fp2 = i9xx_dpll_compute_fp(reduced_clock);
-
- if (reduced_clock->m < factor * reduced_clock->n)
- fp2 |= FP_CB_TUNE;
- } else {
- fp2 = fp;
- }
-
- dpll = 0;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS))
- dpll |= DPLLB_MODE_LVDS;
- else
- dpll |= DPLLB_MODE_DAC_SERIAL;
-
- dpll |= (crtc_state->pixel_multiplier - 1)
- << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO) ||
- intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
- dpll |= DPLL_SDVO_HIGH_SPEED;
-
- if (intel_crtc_has_dp_encoder(crtc_state))
- dpll |= DPLL_SDVO_HIGH_SPEED;
-
- /*
- * The high speed IO clock is only really required for
- * SDVO/HDMI/DP, but we also enable it for CRT to make it
- * possible to share the DPLL between CRT and HDMI. Enabling
- * the clock needlessly does no real harm, except use up a
- * bit of power potentially.
- *
- * We'll limit this to IVB with 3 pipes, since it has only two
- * DPLLs and so DPLL sharing is the only way to get three pipes
- * driving PCH ports at the same time. On SNB we could do this,
- * and potentially avoid enabling the second DPLL, but it's not
- * clear if it''s a win or loss power wise. No point in doing
- * this on ILK at all since it has a fixed DPLL<->pipe mapping.
- */
- if (INTEL_NUM_PIPES(dev_priv) == 3 &&
- intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG))
- dpll |= DPLL_SDVO_HIGH_SPEED;
-
- /* compute bitmask from p1 value */
- dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- /* also FPA1 */
- dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
-
- switch (crtc_state->dpll.p2) {
- case 5:
- dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
- break;
- case 7:
- dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
- break;
- case 10:
- dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
- break;
- case 14:
- dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
- break;
- }
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
- intel_panel_use_ssc(dev_priv))
- dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
- else
- dpll |= PLL_REF_INPUT_DREFCLK;
-
- dpll |= DPLL_VCO_ENABLE;
-
- crtc_state->dpll_hw_state.dpll = dpll;
- crtc_state->dpll_hw_state.fp0 = fp;
- crtc_state->dpll_hw_state.fp1 = fp2;
-}
-
-static int ilk_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- struct intel_atomic_state *state =
- to_intel_atomic_state(crtc_state->uapi.state);
- const struct intel_limit *limit;
- int refclk = 120000;
-
- memset(&crtc_state->dpll_hw_state, 0,
- sizeof(crtc_state->dpll_hw_state));
-
- /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
- if (!crtc_state->has_pch_encoder)
- return 0;
-
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
- if (intel_panel_use_ssc(dev_priv)) {
- drm_dbg_kms(&dev_priv->drm,
- "using SSC reference clock of %d kHz\n",
- dev_priv->vbt.lvds_ssc_freq);
- refclk = dev_priv->vbt.lvds_ssc_freq;
- }
-
- if (intel_is_dual_link_lvds(dev_priv)) {
- if (refclk == 100000)
- limit = &ilk_limits_dual_lvds_100m;
- else
- limit = &ilk_limits_dual_lvds;
- } else {
- if (refclk == 100000)
- limit = &ilk_limits_single_lvds_100m;
- else
- limit = &ilk_limits_single_lvds;
- }
- } else {
- limit = &ilk_limits_dac;
- }
-
- if (!crtc_state->clock_set &&
- !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
- refclk, NULL, &crtc_state->dpll)) {
- drm_err(&dev_priv->drm,
- "Couldn't find PLL settings for mode!\n");
- return -EINVAL;
- }
-
- ilk_compute_dpll(crtc, crtc_state, NULL);
-
- if (!intel_reserve_shared_dplls(state, crtc, NULL)) {
- drm_dbg_kms(&dev_priv->drm,
- "failed to find PLL for pipe %c\n",
- pipe_name(crtc->pipe));
- return -EINVAL;
- }
-
- return 0;
-}
-
static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
struct intel_link_m_n *m_n)
{
@@ -10533,29 +8553,6 @@ out:
return ret;
}
-static int hsw_crtc_compute_clock(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- struct intel_atomic_state *state =
- to_intel_atomic_state(crtc_state->uapi.state);
-
- if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI) ||
- INTEL_GEN(dev_priv) >= 11) {
- struct intel_encoder *encoder =
- intel_get_crtc_new_encoder(state, crtc_state);
-
- if (!intel_reserve_shared_dplls(state, crtc, encoder)) {
- drm_dbg_kms(&dev_priv->drm,
- "failed to find PLL for pipe %c\n",
- pipe_name(crtc->pipe));
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
static void dg1_get_ddi_pll(struct drm_i915_private *dev_priv, enum port port,
struct intel_crtc_state *pipe_config)
{
@@ -10949,8 +8946,6 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
bool active;
u32 tmp;
- pipe_config->master_transcoder = INVALID_TRANSCODER;
-
if (!intel_display_power_get_in_set_if_enabled(dev_priv, &power_domain_set,
POWER_DOMAIN_PIPE(crtc->pipe)))
return false;
@@ -10983,6 +8978,9 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
intel_get_transcoder_timings(crtc, pipe_config);
}
+ if (HAS_VRR(dev_priv) && !transcoder_is_dsi(pipe_config->cpu_transcoder))
+ intel_vrr_get_config(crtc, pipe_config);
+
intel_get_pipe_src_size(crtc, pipe_config);
if (IS_HASWELL(dev_priv)) {
@@ -11461,33 +9459,6 @@ static void ilk_pch_clock_get(struct intel_crtc *crtc,
&pipe_config->fdi_m_n);
}
-static void intel_crtc_state_reset(struct intel_crtc_state *crtc_state,
- struct intel_crtc *crtc)
-{
- memset(crtc_state, 0, sizeof(*crtc_state));
-
- __drm_atomic_helper_crtc_state_reset(&crtc_state->uapi, &crtc->base);
-
- crtc_state->cpu_transcoder = INVALID_TRANSCODER;
- crtc_state->master_transcoder = INVALID_TRANSCODER;
- crtc_state->hsw_workaround_pipe = INVALID_PIPE;
- crtc_state->output_format = INTEL_OUTPUT_FORMAT_INVALID;
- crtc_state->scaler_state.scaler_id = -1;
- crtc_state->mst_master_transcoder = INVALID_TRANSCODER;
-}
-
-static struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc)
-{
- struct intel_crtc_state *crtc_state;
-
- crtc_state = kmalloc(sizeof(*crtc_state), GFP_KERNEL);
-
- if (crtc_state)
- intel_crtc_state_reset(crtc_state, crtc);
-
- return crtc_state;
-}
-
/* Returns the currently programmed mode of the given encoder. */
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder)
@@ -11528,14 +9499,6 @@ intel_encoder_current_mode(struct intel_encoder *encoder)
return mode;
}
-static void intel_crtc_destroy(struct drm_crtc *crtc)
-{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
- drm_crtc_cleanup(crtc);
- kfree(intel_crtc);
-}
-
/**
* intel_wm_need_update - Check whether watermarks need updating
* @cur: current plane state
@@ -12364,6 +10327,13 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
intel_hdmi_infoframe_enable(DP_SDP_VSC))
intel_dump_dp_vsc_sdp(dev_priv, &pipe_config->infoframes.vsc);
+ drm_dbg_kms(&dev_priv->drm, "vrr: %s, vmin: %d, vmax: %d, pipeline full: %d, flipline: %d, vmin vblank: %d, vmax vblank: %d\n",
+ yesno(pipe_config->vrr.enable),
+ pipe_config->vrr.vmin, pipe_config->vrr.vmax,
+ pipe_config->vrr.pipeline_full, pipe_config->vrr.flipline,
+ intel_vrr_vmin_vblank_start(pipe_config),
+ intel_vrr_vmax_vblank_start(pipe_config));
+
drm_dbg_kms(&dev_priv->drm, "requested mode:\n");
drm_mode_debug_printmodeline(&pipe_config->hw.mode);
drm_dbg_kms(&dev_priv->drm, "adjusted mode:\n");
@@ -12751,7 +10721,7 @@ encoder_retry:
return ret;
}
- if (ret == RETRY) {
+ if (ret == I915_DISPLAY_CONFIG_RETRY) {
if (drm_WARN(&i915->drm, !retry,
"loop in pipe configuration computation\n"))
return -EINVAL;
@@ -13357,6 +11327,12 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_I(mst_master_transcoder);
+ PIPE_CONF_CHECK_BOOL(vrr.enable);
+ PIPE_CONF_CHECK_I(vrr.vmin);
+ PIPE_CONF_CHECK_I(vrr.vmax);
+ PIPE_CONF_CHECK_I(vrr.flipline);
+ PIPE_CONF_CHECK_I(vrr.pipeline_full);
+
#undef PIPE_CONF_CHECK_X
#undef PIPE_CONF_CHECK_I
#undef PIPE_CONF_CHECK_BOOL
@@ -13815,10 +11791,17 @@ intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- const struct drm_display_mode *adjusted_mode =
- &crtc_state->hw.adjusted_mode;
+ struct drm_display_mode adjusted_mode =
+ crtc_state->hw.adjusted_mode;
+
+ if (crtc_state->vrr.enable) {
+ adjusted_mode.crtc_vtotal = crtc_state->vrr.vmax;
+ adjusted_mode.crtc_vblank_end = crtc_state->vrr.vmax;
+ adjusted_mode.crtc_vblank_start = intel_vrr_vmin_vblank_start(crtc_state);
+ crtc->vmax_vblank_start = intel_vrr_vmax_vblank_start(crtc_state);
+ }
- drm_calc_timestamping_constants(&crtc->base, adjusted_mode);
+ drm_calc_timestamping_constants(&crtc->base, &adjusted_mode);
crtc->mode_flags = crtc_state->mode_flags;
@@ -13852,8 +11835,8 @@ intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state)
if (IS_GEN(dev_priv, 2)) {
int vtotal;
- vtotal = adjusted_mode->crtc_vtotal;
- if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
+ vtotal = adjusted_mode.crtc_vtotal;
+ if (adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
vtotal /= 2;
crtc->scanline_offset = vtotal - 1;
@@ -14326,7 +12309,7 @@ static void kill_bigjoiner_slave(struct intel_atomic_state *state,
* Async flip can only change the plane surface address, so anything else
* changing is rejected from the intel_atomic_check_async() function.
* Once this check is cleared, flip done interrupt is enabled using
- * the skl_enable_flip_done() function.
+ * the intel_crtc_enable_flip_done() function.
*
* As soon as the surface address register is written, flip done interrupt is
* generated and the requested events are sent to the usersapce in the interrupt
@@ -14370,7 +12353,7 @@ static int intel_atomic_check_async(struct intel_atomic_state *state)
* this(vlv/chv and icl+) should be added when async flip is
* enabled in the atomic IOCTL path.
*/
- if (plane->id != PLANE_PRIMARY)
+ if (!plane->async_flip)
return -EINVAL;
/*
@@ -14514,6 +12497,8 @@ static int intel_atomic_check(struct drm_device *dev,
new_crtc_state->uapi.mode_changed = true;
}
+ intel_vrr_check_modeset(state);
+
ret = drm_atomic_helper_check_modeset(dev, &state->base);
if (ret)
goto fail;
@@ -14640,20 +12625,6 @@ static int intel_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
- /*
- * distrust_bios_wm will force a full dbuf recomputation
- * but the hardware state will only get updated accordingly
- * if state->modeset==true. Hence distrust_bios_wm==true &&
- * state->modeset==false is an invalid combination which
- * would cause the hardware and software dbuf state to get
- * out of sync. We must prevent that.
- *
- * FIXME clean up this mess and introduce better
- * state tracking for dbuf.
- */
- if (dev_priv->wm.distrust_bios_wm)
- any_ms = true;
-
intel_fbc_choose_crtc(dev_priv, state);
ret = calc_watermark_data(state);
if (ret)
@@ -14739,17 +12710,6 @@ static int intel_atomic_prepare_commit(struct intel_atomic_state *state)
return 0;
}
-u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_vblank_crtc *vblank = &dev->vblank[drm_crtc_index(&crtc->base)];
-
- if (!vblank->max_vblank_count)
- return (u32)drm_crtc_accurate_vblank_count(&crtc->base);
-
- return crtc->base.funcs->get_vblank_counter(&crtc->base);
-}
-
void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
struct intel_crtc_state *crtc_state)
{
@@ -15217,6 +13177,43 @@ static void intel_atomic_cleanup_work(struct work_struct *work)
intel_atomic_helper_free_state(i915);
}
+static void intel_atomic_prepare_plane_clear_colors(struct intel_atomic_state *state)
+{
+ struct drm_i915_private *i915 = to_i915(state->base.dev);
+ struct intel_plane *plane;
+ struct intel_plane_state *plane_state;
+ int i;
+
+ for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+ struct drm_framebuffer *fb = plane_state->hw.fb;
+ int ret;
+
+ if (!fb ||
+ fb->modifier != I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC)
+ continue;
+
+ /*
+ * The layout of the fast clear color value expected by HW
+ * (the DRM ABI requiring this value to be located in fb at offset 0 of plane#2):
+ * - 4 x 4 bytes per-channel value
+ * (in surface type specific float/int format provided by the fb user)
+ * - 8 bytes native color value used by the display
+ * (converted/written by GPU during a fast clear operation using the
+ * above per-channel values)
+ *
+ * The commit's FB prepare hook already ensured that FB obj is pinned and the
+ * caller made sure that the object is synced wrt. the related color clear value
+ * GPU write on it.
+ */
+ ret = i915_gem_object_read_from_page(intel_fb_obj(fb),
+ fb->offsets[2] + 16,
+ &plane_state->ccval,
+ sizeof(plane_state->ccval));
+ /* The above could only fail if the FB obj has an unexpected backing store type. */
+ drm_WARN_ON(&i915->drm, ret);
+ }
+}
+
static void intel_atomic_commit_tail(struct intel_atomic_state *state)
{
struct drm_device *dev = state->base.dev;
@@ -15234,6 +13231,8 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
if (state->modeset)
wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET);
+ intel_atomic_prepare_plane_clear_colors(state);
+
for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
if (intel_crtc_needs_modeset(new_crtc_state) ||
@@ -15282,7 +13281,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
if (new_crtc_state->uapi.async_flip)
- skl_enable_flip_done(crtc);
+ intel_crtc_enable_flip_done(state, crtc);
}
/* Now enable the clocks, plane, pipe, and connectors that we set up. */
@@ -15307,7 +13306,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
if (new_crtc_state->uapi.async_flip)
- skl_disable_flip_done(crtc);
+ intel_crtc_disable_flip_done(state, crtc);
if (new_crtc_state->hw.active &&
!intel_crtc_needs_modeset(new_crtc_state) &&
@@ -15510,7 +13509,6 @@ static int intel_atomic_commit(struct drm_device *dev,
intel_runtime_pm_put(&dev_priv->runtime_pm, state->wakeref);
return ret;
}
- dev_priv->wm.distrust_bios_wm = false;
intel_shared_dpll_swap_state(state);
intel_atomic_track_fbs(state);
@@ -15798,113 +13796,6 @@ void intel_plane_destroy(struct drm_plane *plane)
kfree(to_intel_plane(plane));
}
-static int intel_crtc_late_register(struct drm_crtc *crtc)
-{
- intel_crtc_debugfs_add(crtc);
- return 0;
-}
-
-#define INTEL_CRTC_FUNCS \
- .set_config = drm_atomic_helper_set_config, \
- .destroy = intel_crtc_destroy, \
- .page_flip = drm_atomic_helper_page_flip, \
- .atomic_duplicate_state = intel_crtc_duplicate_state, \
- .atomic_destroy_state = intel_crtc_destroy_state, \
- .set_crc_source = intel_crtc_set_crc_source, \
- .verify_crc_source = intel_crtc_verify_crc_source, \
- .get_crc_sources = intel_crtc_get_crc_sources, \
- .late_register = intel_crtc_late_register
-
-static const struct drm_crtc_funcs bdw_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- .get_vblank_counter = g4x_get_vblank_counter,
- .enable_vblank = bdw_enable_vblank,
- .disable_vblank = bdw_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static const struct drm_crtc_funcs ilk_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- .get_vblank_counter = g4x_get_vblank_counter,
- .enable_vblank = ilk_enable_vblank,
- .disable_vblank = ilk_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static const struct drm_crtc_funcs g4x_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- .get_vblank_counter = g4x_get_vblank_counter,
- .enable_vblank = i965_enable_vblank,
- .disable_vblank = i965_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static const struct drm_crtc_funcs i965_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- .get_vblank_counter = i915_get_vblank_counter,
- .enable_vblank = i965_enable_vblank,
- .disable_vblank = i965_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static const struct drm_crtc_funcs i915gm_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- .get_vblank_counter = i915_get_vblank_counter,
- .enable_vblank = i915gm_enable_vblank,
- .disable_vblank = i915gm_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static const struct drm_crtc_funcs i915_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- .get_vblank_counter = i915_get_vblank_counter,
- .enable_vblank = i8xx_enable_vblank,
- .disable_vblank = i8xx_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static const struct drm_crtc_funcs i8xx_crtc_funcs = {
- INTEL_CRTC_FUNCS,
-
- /* no hw vblank counter */
- .enable_vblank = i8xx_enable_vblank,
- .disable_vblank = i8xx_disable_vblank,
- .get_vblank_timestamp = intel_crtc_get_vblank_timestamp,
-};
-
-static struct intel_crtc *intel_crtc_alloc(void)
-{
- struct intel_crtc_state *crtc_state;
- struct intel_crtc *crtc;
-
- crtc = kzalloc(sizeof(*crtc), GFP_KERNEL);
- if (!crtc)
- return ERR_PTR(-ENOMEM);
-
- crtc_state = intel_crtc_state_alloc(crtc);
- if (!crtc_state) {
- kfree(crtc);
- return ERR_PTR(-ENOMEM);
- }
-
- crtc->base.state = &crtc_state->uapi;
- crtc->config = crtc_state;
-
- return crtc;
-}
-
-static void intel_crtc_free(struct intel_crtc *crtc)
-{
- intel_crtc_destroy_state(&crtc->base, crtc->base.state);
- kfree(crtc);
-}
-
static void intel_plane_possible_crtcs_init(struct drm_i915_private *dev_priv)
{
struct intel_plane *plane;
@@ -15917,100 +13808,6 @@ static void intel_plane_possible_crtcs_init(struct drm_i915_private *dev_priv)
}
}
-static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
-{
- struct intel_plane *primary, *cursor;
- const struct drm_crtc_funcs *funcs;
- struct intel_crtc *crtc;
- int sprite, ret;
-
- crtc = intel_crtc_alloc();
- if (IS_ERR(crtc))
- return PTR_ERR(crtc);
-
- crtc->pipe = pipe;
- crtc->num_scalers = RUNTIME_INFO(dev_priv)->num_scalers[pipe];
-
- primary = intel_primary_plane_create(dev_priv, pipe);
- if (IS_ERR(primary)) {
- ret = PTR_ERR(primary);
- goto fail;
- }
- crtc->plane_ids_mask |= BIT(primary->id);
-
- for_each_sprite(dev_priv, pipe, sprite) {
- struct intel_plane *plane;
-
- plane = intel_sprite_plane_create(dev_priv, pipe, sprite);
- if (IS_ERR(plane)) {
- ret = PTR_ERR(plane);
- goto fail;
- }
- crtc->plane_ids_mask |= BIT(plane->id);
- }
-
- cursor = intel_cursor_plane_create(dev_priv, pipe);
- if (IS_ERR(cursor)) {
- ret = PTR_ERR(cursor);
- goto fail;
- }
- crtc->plane_ids_mask |= BIT(cursor->id);
-
- if (HAS_GMCH(dev_priv)) {
- if (IS_CHERRYVIEW(dev_priv) ||
- IS_VALLEYVIEW(dev_priv) || IS_G4X(dev_priv))
- funcs = &g4x_crtc_funcs;
- else if (IS_GEN(dev_priv, 4))
- funcs = &i965_crtc_funcs;
- else if (IS_I945GM(dev_priv) || IS_I915GM(dev_priv))
- funcs = &i915gm_crtc_funcs;
- else if (IS_GEN(dev_priv, 3))
- funcs = &i915_crtc_funcs;
- else
- funcs = &i8xx_crtc_funcs;
- } else {
- if (INTEL_GEN(dev_priv) >= 8)
- funcs = &bdw_crtc_funcs;
- else
- funcs = &ilk_crtc_funcs;
- }
-
- ret = drm_crtc_init_with_planes(&dev_priv->drm, &crtc->base,
- &primary->base, &cursor->base,
- funcs, "pipe %c", pipe_name(pipe));
- if (ret)
- goto fail;
-
- BUG_ON(pipe >= ARRAY_SIZE(dev_priv->pipe_to_crtc_mapping) ||
- dev_priv->pipe_to_crtc_mapping[pipe] != NULL);
- dev_priv->pipe_to_crtc_mapping[pipe] = crtc;
-
- if (INTEL_GEN(dev_priv) < 9) {
- enum i9xx_plane_id i9xx_plane = primary->i9xx_plane;
-
- BUG_ON(i9xx_plane >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
- dev_priv->plane_to_crtc_mapping[i9xx_plane] != NULL);
- dev_priv->plane_to_crtc_mapping[i9xx_plane] = crtc;
- }
-
- if (INTEL_GEN(dev_priv) >= 10)
- drm_crtc_create_scaling_filter_property(&crtc->base,
- BIT(DRM_SCALING_FILTER_DEFAULT) |
- BIT(DRM_SCALING_FILTER_NEAREST_NEIGHBOR));
-
- intel_color_init(crtc);
-
- intel_crtc_crc_init(crtc);
-
- drm_WARN_ON(&dev_priv->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
-
- return 0;
-
-fail:
- intel_crtc_free(crtc);
-
- return ret;
-}
int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
@@ -16093,48 +13890,12 @@ static bool intel_ddi_crt_present(struct drm_i915_private *dev_priv)
return true;
}
-void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv)
-{
- int pps_num;
- int pps_idx;
-
- if (HAS_DDI(dev_priv))
- return;
- /*
- * This w/a is needed at least on CPT/PPT, but to be sure apply it
- * everywhere where registers can be write protected.
- */
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- pps_num = 2;
- else
- pps_num = 1;
-
- for (pps_idx = 0; pps_idx < pps_num; pps_idx++) {
- u32 val = intel_de_read(dev_priv, PP_CONTROL(pps_idx));
-
- val = (val & ~PANEL_UNLOCK_MASK) | PANEL_UNLOCK_REGS;
- intel_de_write(dev_priv, PP_CONTROL(pps_idx), val);
- }
-}
-
-static void intel_pps_init(struct drm_i915_private *dev_priv)
-{
- if (HAS_PCH_SPLIT(dev_priv) || IS_GEN9_LP(dev_priv))
- dev_priv->pps_mmio_base = PCH_PPS_BASE;
- else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- dev_priv->pps_mmio_base = VLV_PPS_BASE;
- else
- dev_priv->pps_mmio_base = PPS_BASE;
-
- intel_pps_unlock_regs_wa(dev_priv);
-}
-
static void intel_setup_outputs(struct drm_i915_private *dev_priv)
{
struct intel_encoder *encoder;
bool dpd_is_edp = false;
- intel_pps_init(dev_priv);
+ intel_pps_unlock_regs_wa(dev_priv);
if (!HAS_DISPLAY(dev_priv))
return;
@@ -16535,7 +14296,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
goto err;
}
- if (is_gen12_ccs_plane(fb, i)) {
+ if (is_gen12_ccs_plane(fb, i) && !is_gen12_ccs_cc_plane(fb, i)) {
int ccs_aux_stride = gen12_ccs_aux_stride(fb, i);
if (fb->pitches[i] != ccs_aux_stride) {
@@ -16733,86 +14494,40 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv)
{
intel_init_cdclk_hooks(dev_priv);
+ intel_dpll_init_clock_hook(dev_priv);
+
if (INTEL_GEN(dev_priv) >= 9) {
dev_priv->display.get_pipe_config = hsw_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- skl_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = hsw_crtc_compute_clock;
dev_priv->display.crtc_enable = hsw_crtc_enable;
dev_priv->display.crtc_disable = hsw_crtc_disable;
} else if (HAS_DDI(dev_priv)) {
dev_priv->display.get_pipe_config = hsw_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock =
- hsw_crtc_compute_clock;
dev_priv->display.crtc_enable = hsw_crtc_enable;
dev_priv->display.crtc_disable = hsw_crtc_disable;
} else if (HAS_PCH_SPLIT(dev_priv)) {
dev_priv->display.get_pipe_config = ilk_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock =
- ilk_crtc_compute_clock;
dev_priv->display.crtc_enable = ilk_crtc_enable;
dev_priv->display.crtc_disable = ilk_crtc_disable;
- } else if (IS_CHERRYVIEW(dev_priv)) {
+ } else if (IS_CHERRYVIEW(dev_priv) ||
+ IS_VALLEYVIEW(dev_priv)) {
dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = chv_crtc_compute_clock;
dev_priv->display.crtc_enable = valleyview_crtc_enable;
dev_priv->display.crtc_disable = i9xx_crtc_disable;
- } else if (IS_VALLEYVIEW(dev_priv)) {
- dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = vlv_crtc_compute_clock;
- dev_priv->display.crtc_enable = valleyview_crtc_enable;
- dev_priv->display.crtc_disable = i9xx_crtc_disable;
- } else if (IS_G4X(dev_priv)) {
- dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = g4x_crtc_compute_clock;
- dev_priv->display.crtc_enable = i9xx_crtc_enable;
- dev_priv->display.crtc_disable = i9xx_crtc_disable;
- } else if (IS_PINEVIEW(dev_priv)) {
- dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = pnv_crtc_compute_clock;
- dev_priv->display.crtc_enable = i9xx_crtc_enable;
- dev_priv->display.crtc_disable = i9xx_crtc_disable;
- } else if (!IS_GEN(dev_priv, 2)) {
- dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock;
- dev_priv->display.crtc_enable = i9xx_crtc_enable;
- dev_priv->display.crtc_disable = i9xx_crtc_disable;
} else {
dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
- dev_priv->display.get_initial_plane_config =
- i9xx_get_initial_plane_config;
- dev_priv->display.crtc_compute_clock = i8xx_crtc_compute_clock;
dev_priv->display.crtc_enable = i9xx_crtc_enable;
dev_priv->display.crtc_disable = i9xx_crtc_disable;
}
- if (IS_GEN(dev_priv, 5)) {
- dev_priv->display.fdi_link_train = ilk_fdi_link_train;
- } else if (IS_GEN(dev_priv, 6)) {
- dev_priv->display.fdi_link_train = gen6_fdi_link_train;
- } else if (IS_IVYBRIDGE(dev_priv)) {
- /* FIXME: detect B0+ stepping and use auto training */
- dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
- }
+ intel_fdi_init_hook(dev_priv);
- if (INTEL_GEN(dev_priv) >= 9)
+ if (INTEL_GEN(dev_priv) >= 9) {
dev_priv->display.commit_modeset_enables = skl_commit_modeset_enables;
- else
+ dev_priv->display.get_initial_plane_config = skl_get_initial_plane_config;
+ } else {
dev_priv->display.commit_modeset_enables = intel_commit_modeset_enables;
+ dev_priv->display.get_initial_plane_config = i9xx_get_initial_plane_config;
+ }
}
@@ -16820,14 +14535,10 @@ void intel_modeset_init_hw(struct drm_i915_private *i915)
{
struct intel_cdclk_state *cdclk_state =
to_intel_cdclk_state(i915->cdclk.obj.state);
- struct intel_dbuf_state *dbuf_state =
- to_intel_dbuf_state(i915->dbuf.obj.state);
intel_update_cdclk(i915);
intel_dump_cdclk_config(&i915->cdclk.hw, "Current CDCLK");
cdclk_state->logical = cdclk_state->actual = i915->cdclk.hw;
-
- dbuf_state->enabled_slices = i915->dbuf.enabled_slices;
}
static int sanitize_watermarks_add_affected(struct drm_atomic_state *state)
@@ -17146,6 +14857,8 @@ int intel_modeset_init_noirq(struct drm_i915_private *i915)
i915->flip_wq = alloc_workqueue("i915_flip", WQ_HIGHPRI |
WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE);
+ i915->framestart_delay = 1; /* 1-4 */
+
intel_mode_config_init(i915);
ret = intel_cdclk_init(i915);
@@ -17192,6 +14905,8 @@ int intel_modeset_init_nogem(struct drm_i915_private *i915)
intel_panel_sanitize_ssc(i915);
+ intel_pps_setup(i915);
+
intel_gmbus_setup(i915);
drm_dbg_kms(&i915->drm, "%d display pipe%s available.\n",
@@ -17480,7 +15195,7 @@ static void intel_sanitize_frame_start_delay(const struct intel_crtc_state *crtc
val = intel_de_read(dev_priv, reg);
val &= ~HSW_FRAME_START_DELAY_MASK;
- val |= HSW_FRAME_START_DELAY(0);
+ val |= HSW_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, reg, val);
} else {
i915_reg_t reg = PIPECONF(cpu_transcoder);
@@ -17488,7 +15203,7 @@ static void intel_sanitize_frame_start_delay(const struct intel_crtc_state *crtc
val = intel_de_read(dev_priv, reg);
val &= ~PIPECONF_FRAME_START_DELAY_MASK;
- val |= PIPECONF_FRAME_START_DELAY(0);
+ val |= PIPECONF_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, reg, val);
}
@@ -17501,7 +15216,7 @@ static void intel_sanitize_frame_start_delay(const struct intel_crtc_state *crtc
val = intel_de_read(dev_priv, reg);
val &= ~TRANS_FRAME_START_DELAY_MASK;
- val |= TRANS_FRAME_START_DELAY(0);
+ val |= TRANS_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, reg, val);
} else {
enum pipe pch_transcoder = intel_crtc_pch_transcoder(crtc);
@@ -17510,7 +15225,7 @@ static void intel_sanitize_frame_start_delay(const struct intel_crtc_state *crtc
val = intel_de_read(dev_priv, reg);
val &= ~TRANS_CHICKEN2_FRAME_START_DELAY_MASK;
- val |= TRANS_CHICKEN2_FRAME_START_DELAY(0);
+ val |= TRANS_CHICKEN2_FRAME_START_DELAY(dev_priv->framestart_delay - 1);
intel_de_write(dev_priv, reg, val);
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 7ddbc00a0f41..64ffa34544a7 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -546,7 +546,6 @@ unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info
unsigned int intel_remapped_info_size(const struct intel_remapped_info *rem_info);
bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv);
int intel_display_suspend(struct drm_device *dev);
-void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv);
void intel_encoder_destroy(struct drm_encoder *encoder);
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder);
@@ -643,7 +642,7 @@ void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
bool
intel_format_info_is_yuv_semiplanar(const struct drm_format_info *info,
- uint64_t modifier);
+ u64 modifier);
int intel_plane_compute_gtt(struct intel_plane_state *plane_state);
u32 intel_plane_compute_aligned_offset(int *x, int *y,
@@ -651,6 +650,9 @@ u32 intel_plane_compute_aligned_offset(int *x, int *y,
int color_plane);
int intel_plane_pin_fb(struct intel_plane_state *plane_state);
void intel_plane_unpin_fb(struct intel_plane_state *old_plane_state);
+struct intel_encoder *
+intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
+ const struct intel_crtc_state *crtc_state);
/* modesetting */
void intel_modeset_init_hw(struct drm_i915_private *i915);
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index cd7e5519ee7d..d62b18d5ecd8 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -1139,7 +1139,6 @@ static ssize_t i915_ipc_status_write(struct file *file, const char __user *ubuf,
if (!dev_priv->ipc_enabled && enable)
drm_info(&dev_priv->drm,
"Enabling IPC: WM will be proper only after next commit\n");
- dev_priv->wm.distrust_bios_wm = true;
dev_priv->ipc_enabled = enable;
intel_enable_ipc(dev_priv);
}
@@ -2155,13 +2154,13 @@ static int i915_panel_show(struct seq_file *m, void *data)
return -ENODEV;
seq_printf(m, "Panel power up delay: %d\n",
- intel_dp->panel_power_up_delay);
+ intel_dp->pps.panel_power_up_delay);
seq_printf(m, "Panel power down delay: %d\n",
- intel_dp->panel_power_down_delay);
+ intel_dp->pps.panel_power_down_delay);
seq_printf(m, "Backlight on delay: %d\n",
- intel_dp->backlight_on_delay);
+ intel_dp->pps.backlight_on_delay);
seq_printf(m, "Backlight off delay: %d\n",
- intel_dp->backlight_off_delay);
+ intel_dp->pps.backlight_off_delay);
return 0;
}
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index d52374f01316..c11c37c65d86 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4,7 +4,6 @@
*/
#include "display/intel_crt.h"
-#include "display/intel_dp.h"
#include "i915_drv.h"
#include "i915_irq.h"
@@ -16,6 +15,7 @@
#include "intel_dpio_phy.h"
#include "intel_hotplug.h"
#include "intel_pm.h"
+#include "intel_pps.h"
#include "intel_sideband.h"
#include "intel_tc.h"
#include "intel_vga.h"
@@ -936,7 +936,7 @@ static void bxt_enable_dc9(struct drm_i915_private *dev_priv)
* because PPS registers are always on.
*/
if (!HAS_PCH_SPLIT(dev_priv))
- intel_power_sequencer_reset(dev_priv);
+ intel_pps_reset_all(dev_priv);
gen9_set_dc_state(dev_priv, DC_STATE_EN_DC9);
}
@@ -1446,7 +1446,7 @@ static void vlv_display_power_well_deinit(struct drm_i915_private *dev_priv)
/* make sure we're done processing display irqs */
intel_synchronize_irq(dev_priv);
- intel_power_sequencer_reset(dev_priv);
+ intel_pps_reset_all(dev_priv);
/* Prevent us from re-enabling polling on accident in late suspend */
if (!dev_priv->drm.dev->power.is_suspended)
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 9dfad41eb3dc..39397748b4b0 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -228,7 +228,7 @@ struct intel_encoder {
struct intel_panel_bl_funcs {
/* Connector and platform specific backlight functions */
int (*setup)(struct intel_connector *connector, enum pipe pipe);
- u32 (*get)(struct intel_connector *connector);
+ u32 (*get)(struct intel_connector *connector, enum pipe pipe);
void (*set)(const struct drm_connector_state *conn_state, u32 level);
void (*disable)(const struct drm_connector_state *conn_state, u32 level);
void (*enable)(const struct intel_crtc_state *crtc_state,
@@ -252,17 +252,28 @@ struct intel_panel {
bool alternate_pwm_increment; /* lpt+ */
/* PWM chip */
+ u32 pwm_level_min;
+ u32 pwm_level_max;
+ bool pwm_enabled;
bool util_pin_active_low; /* bxt+ */
u8 controller; /* bxt+ only */
struct pwm_device *pwm;
struct pwm_state pwm_state;
/* DPCD backlight */
- u8 pwmgen_bit_count;
+ union {
+ struct {
+ u8 pwmgen_bit_count;
+ } vesa;
+ struct {
+ bool sdr_uses_aux;
+ } intel;
+ } edp;
struct backlight_device *device;
const struct intel_panel_bl_funcs *funcs;
+ const struct intel_panel_bl_funcs *pwm_funcs;
void (*power)(struct intel_connector *, bool enable);
} backlight;
};
@@ -343,6 +354,10 @@ struct intel_hdcp_shim {
enum transcoder cpu_transcoder,
bool enable);
+ /* Enable/Disable stream encryption on DP MST Transport Link */
+ int (*stream_encryption)(struct intel_connector *connector,
+ bool enable);
+
/* Ensures the link is still protected */
bool (*check_link)(struct intel_digital_port *dig_port,
struct intel_connector *connector);
@@ -374,8 +389,13 @@ struct intel_hdcp_shim {
int (*config_stream_type)(struct intel_digital_port *dig_port,
bool is_repeater, u8 type);
+ /* Enable/Disable HDCP 2.2 stream encryption on DP MST Transport Link */
+ int (*stream_2_2_encryption)(struct intel_connector *connector,
+ bool enable);
+
/* HDCP2.2 Link Integrity Check */
- int (*check_2_2_link)(struct intel_digital_port *dig_port);
+ int (*check_2_2_link)(struct intel_digital_port *dig_port,
+ struct intel_connector *connector);
};
struct intel_hdcp {
@@ -402,7 +422,6 @@ struct intel_hdcp {
* content can flow only through a link protected by HDCP2.2.
*/
u8 content_type;
- struct hdcp_port_data port_data;
bool is_paired;
bool is_repeater;
@@ -436,6 +455,8 @@ struct intel_hdcp {
* Hence caching the transcoder here.
*/
enum transcoder cpu_transcoder;
+ /* Only used for DP MST stream encryption */
+ enum transcoder stream_transcoder;
};
struct intel_connector {
@@ -535,7 +556,7 @@ struct intel_plane_state {
struct drm_framebuffer *fb;
u16 alpha;
- uint16_t pixel_blend_mode;
+ u16 pixel_blend_mode;
unsigned int rotation;
enum drm_color_encoding color_encoding;
enum drm_color_range color_range;
@@ -610,6 +631,9 @@ struct intel_plane_state {
struct drm_intel_sprite_colorkey ckey;
struct drm_rect psr2_sel_fetch_area;
+
+ /* Clear Color Value */
+ u64 ccval;
};
struct intel_initial_plane_config {
@@ -669,6 +693,8 @@ struct intel_crtc_scaler_state {
#define I915_MODE_FLAG_DSI_USE_TE1 (1<<4)
/* Flag to indicate mipi dsi periodic command mode where we do not get TE */
#define I915_MODE_FLAG_DSI_PERIODIC_CMD_MODE (1<<5)
+/* Do tricks to make vblank timestamps sane with VRR? */
+#define I915_MODE_FLAG_VRR (1<<6)
struct intel_wm_level {
bool enable;
@@ -1127,6 +1153,13 @@ struct intel_crtc_state {
struct intel_dsb *dsb;
u32 psr2_man_track_ctl;
+
+ /* Variable Refresh Rate state */
+ struct {
+ bool enable;
+ u8 pipeline_full;
+ u16 flipline, vmin, vmax;
+ } vrr;
};
enum intel_pipe_crc_source {
@@ -1169,6 +1202,8 @@ struct intel_crtc {
/* I915_MODE_FLAG_* */
u8 mode_flags;
+ u16 vmax_vblank_start;
+
struct intel_display_power_domain_set enabled_power_domains;
struct intel_overlay *overlay;
@@ -1221,6 +1256,7 @@ struct intel_plane {
enum pipe pipe;
bool has_fbc;
bool has_ccs;
+ bool need_async_flip_disable_wa;
u32 frontbuffer_bit;
struct {
@@ -1257,7 +1293,10 @@ struct intel_plane {
const struct intel_plane_state *plane_state);
void (*async_flip)(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
- const struct intel_plane_state *plane_state);
+ const struct intel_plane_state *plane_state,
+ bool async_flip);
+ void (*enable_flip_done)(struct intel_plane *plane);
+ void (*disable_flip_done)(struct intel_plane *plane);
};
struct intel_watermark_params {
@@ -1344,6 +1383,38 @@ struct intel_dp_pcon_frl {
int trained_rate_gbps;
};
+struct intel_pps {
+ int panel_power_up_delay;
+ int panel_power_down_delay;
+ int panel_power_cycle_delay;
+ int backlight_on_delay;
+ int backlight_off_delay;
+ struct delayed_work panel_vdd_work;
+ bool want_panel_vdd;
+ unsigned long last_power_on;
+ unsigned long last_backlight_off;
+ ktime_t panel_power_off_time;
+ intel_wakeref_t vdd_wakeref;
+
+ /*
+ * Pipe whose power sequencer is currently locked into
+ * this port. Only relevant on VLV/CHV.
+ */
+ enum pipe pps_pipe;
+ /*
+ * Pipe currently driving the port. Used for preventing
+ * the use of the PPS for any pipe currentrly driving
+ * external DP as that will mess things up on VLV.
+ */
+ enum pipe active_pipe;
+ /*
+ * Set if the sequencer may be reset due to a power transition,
+ * requiring a reinitialization. Only relevant on BXT.
+ */
+ bool pps_reset;
+ struct edp_power_seq pps_delays;
+};
+
struct intel_dp {
i915_reg_t output_reg;
u32 DP;
@@ -1380,39 +1451,11 @@ struct intel_dp {
int max_link_rate;
/* sink or branch descriptor */
struct drm_dp_desc desc;
- u32 edid_quirks;
struct drm_dp_aux aux;
u32 aux_busy_last_status;
u8 train_set[4];
- int panel_power_up_delay;
- int panel_power_down_delay;
- int panel_power_cycle_delay;
- int backlight_on_delay;
- int backlight_off_delay;
- struct delayed_work panel_vdd_work;
- bool want_panel_vdd;
- unsigned long last_power_on;
- unsigned long last_backlight_off;
- ktime_t panel_power_off_time;
- intel_wakeref_t vdd_wakeref;
- /*
- * Pipe whose power sequencer is currently locked into
- * this port. Only relevant on VLV/CHV.
- */
- enum pipe pps_pipe;
- /*
- * Pipe currently driving the port. Used for preventing
- * the use of the PPS for any pipe currentrly driving
- * external DP as that will mess things up on VLV.
- */
- enum pipe active_pipe;
- /*
- * Set if the sequencer may be reset due to a power transition,
- * requiring a reinitialization. Only relevant on BXT.
- */
- bool pps_reset;
- struct edp_power_seq pps_delays;
+ struct intel_pps pps;
bool can_mst; /* this port supports mst */
bool is_mst;
@@ -1511,10 +1554,14 @@ struct intel_digital_port {
enum phy_fia tc_phy_fia;
u8 tc_phy_fia_idx;
- /* protects num_hdcp_streams reference count */
+ /* protects num_hdcp_streams reference count, hdcp_port_data and hdcp_auth_status */
struct mutex hdcp_mutex;
/* the number of pipes using HDCP signalling out of this port */
unsigned int num_hdcp_streams;
+ /* port HDCP auth status */
+ bool hdcp_auth_status;
+ /* HDCP port data need to pass to security f/w */
+ struct hdcp_port_data hdcp_port_data;
void (*write_infoframe)(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
@@ -1825,4 +1872,26 @@ to_intel_frontbuffer(struct drm_framebuffer *fb)
return fb ? to_intel_framebuffer(fb)->frontbuffer : NULL;
}
+static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
+{
+ if (dev_priv->params.panel_use_ssc >= 0)
+ return dev_priv->params.panel_use_ssc != 0;
+ return dev_priv->vbt.lvds_use_ssc
+ && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
+}
+
+static inline u32 i9xx_dpll_compute_fp(struct dpll *dpll)
+{
+ return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
+}
+
+static inline u32 intel_fdi_link_freq(struct drm_i915_private *dev_priv,
+ const struct intel_crtc_state *pipe_config)
+{
+ if (HAS_DDI(dev_priv))
+ return pipe_config->port_clock; /* SPLL */
+ else
+ return dev_priv->fdi_pll_freq;
+}
+
#endif /* __INTEL_DISPLAY_TYPES_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1ea97b1b65f7..8c12d5375607 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -41,13 +41,13 @@
#include "i915_debugfs.h"
#include "i915_drv.h"
-#include "i915_trace.h"
#include "intel_atomic.h"
#include "intel_audio.h"
#include "intel_connector.h"
#include "intel_ddi.h"
#include "intel_display_types.h"
#include "intel_dp.h"
+#include "intel_dp_aux.h"
#include "intel_dp_link_training.h"
#include "intel_dp_mst.h"
#include "intel_dpio_phy.h"
@@ -58,10 +58,12 @@
#include "intel_lspcon.h"
#include "intel_lvds.h"
#include "intel_panel.h"
+#include "intel_pps.h"
#include "intel_psr.h"
#include "intel_sideband.h"
#include "intel_tc.h"
#include "intel_vdsc.h"
+#include "intel_vrr.h"
#define DP_DPRX_ESI_LEN 14
@@ -121,6 +123,11 @@ static const struct dp_link_dpll chv_dpll[] = {
{ .p1 = 4, .p2 = 1, .n = 1, .m1 = 2, .m2 = 0x6c00000 } },
};
+const struct dpll *vlv_get_dpll(struct drm_i915_private *i915)
+{
+ return IS_CHERRYVIEW(i915) ? &chv_dpll[0].dpll : &vlv_dpll[0].dpll;
+}
+
/* Constants for DP DSC configurations */
static const u8 valid_dsc_bpp[] = {6, 8, 10, 12, 15};
@@ -145,12 +152,6 @@ bool intel_dp_is_edp(struct intel_dp *intel_dp)
static void intel_dp_link_down(struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state);
-static bool edp_panel_vdd_on(struct intel_dp *intel_dp);
-static void edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
-static void vlv_init_panel_power_sequencer(struct intel_encoder *encoder,
- const struct intel_crtc_state *crtc_state);
-static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv,
- enum pipe pipe);
static void intel_dp_unset_edid(struct intel_dp *intel_dp);
/* update sink rates from dpcd */
@@ -162,8 +163,7 @@ static void intel_dp_set_sink_rates(struct intel_dp *intel_dp)
int i, max_rate;
int max_lttpr_rate;
- if (drm_dp_has_quirk(&intel_dp->desc, 0,
- DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS)) {
+ if (drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS)) {
/* Needed, e.g., for Apple MBP 2017, 15 inch eDP Retina panel */
static const int quirk_rates[] = { 162000, 270000, 324000 };
@@ -863,1125 +863,6 @@ intel_dp_mode_valid(struct drm_connector *connector,
return intel_mode_valid_max_plane_size(dev_priv, mode, bigjoiner);
}
-u32 intel_dp_pack_aux(const u8 *src, int src_bytes)
-{
- int i;
- u32 v = 0;
-
- if (src_bytes > 4)
- src_bytes = 4;
- for (i = 0; i < src_bytes; i++)
- v |= ((u32)src[i]) << ((3 - i) * 8);
- return v;
-}
-
-static void intel_dp_unpack_aux(u32 src, u8 *dst, int dst_bytes)
-{
- int i;
- if (dst_bytes > 4)
- dst_bytes = 4;
- for (i = 0; i < dst_bytes; i++)
- dst[i] = src >> ((3-i) * 8);
-}
-
-static void
-intel_dp_init_panel_power_sequencer(struct intel_dp *intel_dp);
-static void
-intel_dp_init_panel_power_sequencer_registers(struct intel_dp *intel_dp,
- bool force_disable_vdd);
-static void
-intel_dp_pps_init(struct intel_dp *intel_dp);
-
-static intel_wakeref_t
-pps_lock(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- intel_wakeref_t wakeref;
-
- /*
- * See intel_power_sequencer_reset() why we need
- * a power domain reference here.
- */
- wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_DISPLAY_CORE);
- mutex_lock(&dev_priv->pps_mutex);
-
- return wakeref;
-}
-
-static intel_wakeref_t
-pps_unlock(struct intel_dp *intel_dp, intel_wakeref_t wakeref)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- mutex_unlock(&dev_priv->pps_mutex);
- intel_display_power_put(dev_priv, POWER_DOMAIN_DISPLAY_CORE, wakeref);
- return 0;
-}
-
-#define with_pps_lock(dp, wf) \
- for ((wf) = pps_lock(dp); (wf); (wf) = pps_unlock((dp), (wf)))
-
-static void
-vlv_power_sequencer_kick(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum pipe pipe = intel_dp->pps_pipe;
- bool pll_enabled, release_cl_override = false;
- enum dpio_phy phy = DPIO_PHY(pipe);
- enum dpio_channel ch = vlv_pipe_to_channel(pipe);
- u32 DP;
-
- if (drm_WARN(&dev_priv->drm,
- intel_de_read(dev_priv, intel_dp->output_reg) & DP_PORT_EN,
- "skipping pipe %c power sequencer kick due to [ENCODER:%d:%s] being active\n",
- pipe_name(pipe), dig_port->base.base.base.id,
- dig_port->base.base.name))
- return;
-
- drm_dbg_kms(&dev_priv->drm,
- "kicking pipe %c power sequencer for [ENCODER:%d:%s]\n",
- pipe_name(pipe), dig_port->base.base.base.id,
- dig_port->base.base.name);
-
- /* Preserve the BIOS-computed detected bit. This is
- * supposed to be read-only.
- */
- DP = intel_de_read(dev_priv, intel_dp->output_reg) & DP_DETECTED;
- DP |= DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0;
- DP |= DP_PORT_WIDTH(1);
- DP |= DP_LINK_TRAIN_PAT_1;
-
- if (IS_CHERRYVIEW(dev_priv))
- DP |= DP_PIPE_SEL_CHV(pipe);
- else
- DP |= DP_PIPE_SEL(pipe);
-
- pll_enabled = intel_de_read(dev_priv, DPLL(pipe)) & DPLL_VCO_ENABLE;
-
- /*
- * The DPLL for the pipe must be enabled for this to work.
- * So enable temporarily it if it's not already enabled.
- */
- if (!pll_enabled) {
- release_cl_override = IS_CHERRYVIEW(dev_priv) &&
- !chv_phy_powergate_ch(dev_priv, phy, ch, true);
-
- if (vlv_force_pll_on(dev_priv, pipe, IS_CHERRYVIEW(dev_priv) ?
- &chv_dpll[0].dpll : &vlv_dpll[0].dpll)) {
- drm_err(&dev_priv->drm,
- "Failed to force on pll for pipe %c!\n",
- pipe_name(pipe));
- return;
- }
- }
-
- /*
- * Similar magic as in intel_dp_enable_port().
- * We _must_ do this port enable + disable trick
- * to make this power sequencer lock onto the port.
- * Otherwise even VDD force bit won't work.
- */
- intel_de_write(dev_priv, intel_dp->output_reg, DP);
- intel_de_posting_read(dev_priv, intel_dp->output_reg);
-
- intel_de_write(dev_priv, intel_dp->output_reg, DP | DP_PORT_EN);
- intel_de_posting_read(dev_priv, intel_dp->output_reg);
-
- intel_de_write(dev_priv, intel_dp->output_reg, DP & ~DP_PORT_EN);
- intel_de_posting_read(dev_priv, intel_dp->output_reg);
-
- if (!pll_enabled) {
- vlv_force_pll_off(dev_priv, pipe);
-
- if (release_cl_override)
- chv_phy_powergate_ch(dev_priv, phy, ch, false);
- }
-}
-
-static enum pipe vlv_find_free_pps(struct drm_i915_private *dev_priv)
-{
- struct intel_encoder *encoder;
- unsigned int pipes = (1 << PIPE_A) | (1 << PIPE_B);
-
- /*
- * We don't have power sequencer currently.
- * Pick one that's not used by other ports.
- */
- for_each_intel_dp(&dev_priv->drm, encoder) {
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
- if (encoder->type == INTEL_OUTPUT_EDP) {
- drm_WARN_ON(&dev_priv->drm,
- intel_dp->active_pipe != INVALID_PIPE &&
- intel_dp->active_pipe !=
- intel_dp->pps_pipe);
-
- if (intel_dp->pps_pipe != INVALID_PIPE)
- pipes &= ~(1 << intel_dp->pps_pipe);
- } else {
- drm_WARN_ON(&dev_priv->drm,
- intel_dp->pps_pipe != INVALID_PIPE);
-
- if (intel_dp->active_pipe != INVALID_PIPE)
- pipes &= ~(1 << intel_dp->active_pipe);
- }
- }
-
- if (pipes == 0)
- return INVALID_PIPE;
-
- return ffs(pipes) - 1;
-}
-
-static enum pipe
-vlv_power_sequencer_pipe(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum pipe pipe;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- /* We should never land here with regular DP ports */
- drm_WARN_ON(&dev_priv->drm, !intel_dp_is_edp(intel_dp));
-
- drm_WARN_ON(&dev_priv->drm, intel_dp->active_pipe != INVALID_PIPE &&
- intel_dp->active_pipe != intel_dp->pps_pipe);
-
- if (intel_dp->pps_pipe != INVALID_PIPE)
- return intel_dp->pps_pipe;
-
- pipe = vlv_find_free_pps(dev_priv);
-
- /*
- * Didn't find one. This should not happen since there
- * are two power sequencers and up to two eDP ports.
- */
- if (drm_WARN_ON(&dev_priv->drm, pipe == INVALID_PIPE))
- pipe = PIPE_A;
-
- vlv_steal_power_sequencer(dev_priv, pipe);
- intel_dp->pps_pipe = pipe;
-
- drm_dbg_kms(&dev_priv->drm,
- "picked pipe %c power sequencer for [ENCODER:%d:%s]\n",
- pipe_name(intel_dp->pps_pipe),
- dig_port->base.base.base.id,
- dig_port->base.base.name);
-
- /* init power sequencer on this pipe and port */
- intel_dp_init_panel_power_sequencer(intel_dp);
- intel_dp_init_panel_power_sequencer_registers(intel_dp, true);
-
- /*
- * Even vdd force doesn't work until we've made
- * the power sequencer lock in on the port.
- */
- vlv_power_sequencer_kick(intel_dp);
-
- return intel_dp->pps_pipe;
-}
-
-static int
-bxt_power_sequencer_idx(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- int backlight_controller = dev_priv->vbt.backlight.controller;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- /* We should never land here with regular DP ports */
- drm_WARN_ON(&dev_priv->drm, !intel_dp_is_edp(intel_dp));
-
- if (!intel_dp->pps_reset)
- return backlight_controller;
-
- intel_dp->pps_reset = false;
-
- /*
- * Only the HW needs to be reprogrammed, the SW state is fixed and
- * has been setup during connector init.
- */
- intel_dp_init_panel_power_sequencer_registers(intel_dp, false);
-
- return backlight_controller;
-}
-
-typedef bool (*vlv_pipe_check)(struct drm_i915_private *dev_priv,
- enum pipe pipe);
-
-static bool vlv_pipe_has_pp_on(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- return intel_de_read(dev_priv, PP_STATUS(pipe)) & PP_ON;
-}
-
-static bool vlv_pipe_has_vdd_on(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- return intel_de_read(dev_priv, PP_CONTROL(pipe)) & EDP_FORCE_VDD;
-}
-
-static bool vlv_pipe_any(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- return true;
-}
-
-static enum pipe
-vlv_initial_pps_pipe(struct drm_i915_private *dev_priv,
- enum port port,
- vlv_pipe_check pipe_check)
-{
- enum pipe pipe;
-
- for (pipe = PIPE_A; pipe <= PIPE_B; pipe++) {
- u32 port_sel = intel_de_read(dev_priv, PP_ON_DELAYS(pipe)) &
- PANEL_PORT_SELECT_MASK;
-
- if (port_sel != PANEL_PORT_SELECT_VLV(port))
- continue;
-
- if (!pipe_check(dev_priv, pipe))
- continue;
-
- return pipe;
- }
-
- return INVALID_PIPE;
-}
-
-static void
-vlv_initial_power_sequencer_setup(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum port port = dig_port->base.port;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- /* try to find a pipe with this port selected */
- /* first pick one where the panel is on */
- intel_dp->pps_pipe = vlv_initial_pps_pipe(dev_priv, port,
- vlv_pipe_has_pp_on);
- /* didn't find one? pick one where vdd is on */
- if (intel_dp->pps_pipe == INVALID_PIPE)
- intel_dp->pps_pipe = vlv_initial_pps_pipe(dev_priv, port,
- vlv_pipe_has_vdd_on);
- /* didn't find one? pick one with just the correct port */
- if (intel_dp->pps_pipe == INVALID_PIPE)
- intel_dp->pps_pipe = vlv_initial_pps_pipe(dev_priv, port,
- vlv_pipe_any);
-
- /* didn't find one? just let vlv_power_sequencer_pipe() pick one when needed */
- if (intel_dp->pps_pipe == INVALID_PIPE) {
- drm_dbg_kms(&dev_priv->drm,
- "no initial power sequencer for [ENCODER:%d:%s]\n",
- dig_port->base.base.base.id,
- dig_port->base.base.name);
- return;
- }
-
- drm_dbg_kms(&dev_priv->drm,
- "initial power sequencer for [ENCODER:%d:%s]: pipe %c\n",
- dig_port->base.base.base.id,
- dig_port->base.base.name,
- pipe_name(intel_dp->pps_pipe));
-
- intel_dp_init_panel_power_sequencer(intel_dp);
- intel_dp_init_panel_power_sequencer_registers(intel_dp, false);
-}
-
-void intel_power_sequencer_reset(struct drm_i915_private *dev_priv)
-{
- struct intel_encoder *encoder;
-
- if (drm_WARN_ON(&dev_priv->drm,
- !(IS_VALLEYVIEW(dev_priv) ||
- IS_CHERRYVIEW(dev_priv) ||
- IS_GEN9_LP(dev_priv))))
- return;
-
- /*
- * We can't grab pps_mutex here due to deadlock with power_domain
- * mutex when power_domain functions are called while holding pps_mutex.
- * That also means that in order to use pps_pipe the code needs to
- * hold both a power domain reference and pps_mutex, and the power domain
- * reference get/put must be done while _not_ holding pps_mutex.
- * pps_{lock,unlock}() do these steps in the correct order, so one
- * should use them always.
- */
-
- for_each_intel_dp(&dev_priv->drm, encoder) {
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
- drm_WARN_ON(&dev_priv->drm,
- intel_dp->active_pipe != INVALID_PIPE);
-
- if (encoder->type != INTEL_OUTPUT_EDP)
- continue;
-
- if (IS_GEN9_LP(dev_priv))
- intel_dp->pps_reset = true;
- else
- intel_dp->pps_pipe = INVALID_PIPE;
- }
-}
-
-struct pps_registers {
- i915_reg_t pp_ctrl;
- i915_reg_t pp_stat;
- i915_reg_t pp_on;
- i915_reg_t pp_off;
- i915_reg_t pp_div;
-};
-
-static void intel_pps_get_registers(struct intel_dp *intel_dp,
- struct pps_registers *regs)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- int pps_idx = 0;
-
- memset(regs, 0, sizeof(*regs));
-
- if (IS_GEN9_LP(dev_priv))
- pps_idx = bxt_power_sequencer_idx(intel_dp);
- else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- pps_idx = vlv_power_sequencer_pipe(intel_dp);
-
- regs->pp_ctrl = PP_CONTROL(pps_idx);
- regs->pp_stat = PP_STATUS(pps_idx);
- regs->pp_on = PP_ON_DELAYS(pps_idx);
- regs->pp_off = PP_OFF_DELAYS(pps_idx);
-
- /* Cycle delay moved from PP_DIVISOR to PP_CONTROL */
- if (IS_GEN9_LP(dev_priv) || INTEL_PCH_TYPE(dev_priv) >= PCH_CNP)
- regs->pp_div = INVALID_MMIO_REG;
- else
- regs->pp_div = PP_DIVISOR(pps_idx);
-}
-
-static i915_reg_t
-_pp_ctrl_reg(struct intel_dp *intel_dp)
-{
- struct pps_registers regs;
-
- intel_pps_get_registers(intel_dp, &regs);
-
- return regs.pp_ctrl;
-}
-
-static i915_reg_t
-_pp_stat_reg(struct intel_dp *intel_dp)
-{
- struct pps_registers regs;
-
- intel_pps_get_registers(intel_dp, &regs);
-
- return regs.pp_stat;
-}
-
-static bool edp_have_panel_power(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
- intel_dp->pps_pipe == INVALID_PIPE)
- return false;
-
- return (intel_de_read(dev_priv, _pp_stat_reg(intel_dp)) & PP_ON) != 0;
-}
-
-static bool edp_have_panel_vdd(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
- intel_dp->pps_pipe == INVALID_PIPE)
- return false;
-
- return intel_de_read(dev_priv, _pp_ctrl_reg(intel_dp)) & EDP_FORCE_VDD;
-}
-
-static void
-intel_dp_check_edp(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- if (!edp_have_panel_power(intel_dp) && !edp_have_panel_vdd(intel_dp)) {
- drm_WARN(&dev_priv->drm, 1,
- "eDP powered off while attempting aux channel communication.\n");
- drm_dbg_kms(&dev_priv->drm, "Status 0x%08x Control 0x%08x\n",
- intel_de_read(dev_priv, _pp_stat_reg(intel_dp)),
- intel_de_read(dev_priv, _pp_ctrl_reg(intel_dp)));
- }
-}
-
-static u32
-intel_dp_aux_wait_done(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *i915 = dp_to_i915(intel_dp);
- i915_reg_t ch_ctl = intel_dp->aux_ch_ctl_reg(intel_dp);
- const unsigned int timeout_ms = 10;
- u32 status;
- bool done;
-
-#define C (((status = intel_uncore_read_notrace(&i915->uncore, ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0)
- done = wait_event_timeout(i915->gmbus_wait_queue, C,
- msecs_to_jiffies_timeout(timeout_ms));
-
- /* just trace the final value */
- trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
-
- if (!done)
- drm_err(&i915->drm,
- "%s: did not complete or timeout within %ums (status 0x%08x)\n",
- intel_dp->aux.name, timeout_ms, status);
-#undef C
-
- return status;
-}
-
-static u32 g4x_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- if (index)
- return 0;
-
- /*
- * The clock divider is based off the hrawclk, and would like to run at
- * 2MHz. So, take the hrawclk value and divide by 2000 and use that
- */
- return DIV_ROUND_CLOSEST(RUNTIME_INFO(dev_priv)->rawclk_freq, 2000);
-}
-
-static u32 ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- u32 freq;
-
- if (index)
- return 0;
-
- /*
- * The clock divider is based off the cdclk or PCH rawclk, and would
- * like to run at 2MHz. So, take the cdclk or PCH rawclk value and
- * divide by 2000 and use that
- */
- if (dig_port->aux_ch == AUX_CH_A)
- freq = dev_priv->cdclk.hw.cdclk;
- else
- freq = RUNTIME_INFO(dev_priv)->rawclk_freq;
- return DIV_ROUND_CLOSEST(freq, 2000);
-}
-
-static u32 hsw_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-
- if (dig_port->aux_ch != AUX_CH_A && HAS_PCH_LPT_H(dev_priv)) {
- /* Workaround for non-ULT HSW */
- switch (index) {
- case 0: return 63;
- case 1: return 72;
- default: return 0;
- }
- }
-
- return ilk_get_aux_clock_divider(intel_dp, index);
-}
-
-static u32 skl_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
-{
- /*
- * SKL doesn't need us to program the AUX clock divider (Hardware will
- * derive the clock from CDCLK automatically). We still implement the
- * get_aux_clock_divider vfunc to plug-in into the existing code.
- */
- return index ? 0 : 1;
-}
-
-static u32 g4x_get_aux_send_ctl(struct intel_dp *intel_dp,
- int send_bytes,
- u32 aux_clock_divider)
-{
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- struct drm_i915_private *dev_priv =
- to_i915(dig_port->base.base.dev);
- u32 precharge, timeout;
-
- if (IS_GEN(dev_priv, 6))
- precharge = 3;
- else
- precharge = 5;
-
- if (IS_BROADWELL(dev_priv))
- timeout = DP_AUX_CH_CTL_TIME_OUT_600us;
- else
- timeout = DP_AUX_CH_CTL_TIME_OUT_400us;
-
- return DP_AUX_CH_CTL_SEND_BUSY |
- DP_AUX_CH_CTL_DONE |
- DP_AUX_CH_CTL_INTERRUPT |
- DP_AUX_CH_CTL_TIME_OUT_ERROR |
- timeout |
- DP_AUX_CH_CTL_RECEIVE_ERROR |
- (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
- (precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
- (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT);
-}
-
-static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
- int send_bytes,
- u32 unused)
-{
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- struct drm_i915_private *i915 =
- to_i915(dig_port->base.base.dev);
- enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
- u32 ret;
-
- ret = DP_AUX_CH_CTL_SEND_BUSY |
- DP_AUX_CH_CTL_DONE |
- DP_AUX_CH_CTL_INTERRUPT |
- DP_AUX_CH_CTL_TIME_OUT_ERROR |
- DP_AUX_CH_CTL_TIME_OUT_MAX |
- DP_AUX_CH_CTL_RECEIVE_ERROR |
- (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
- DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) |
- DP_AUX_CH_CTL_SYNC_PULSE_SKL(32);
-
- if (intel_phy_is_tc(i915, phy) &&
- dig_port->tc_mode == TC_PORT_TBT_ALT)
- ret |= DP_AUX_CH_CTL_TBT_IO;
-
- return ret;
-}
-
-static int
-intel_dp_aux_xfer(struct intel_dp *intel_dp,
- const u8 *send, int send_bytes,
- u8 *recv, int recv_size,
- u32 aux_send_ctl_flags)
-{
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- struct drm_i915_private *i915 =
- to_i915(dig_port->base.base.dev);
- struct intel_uncore *uncore = &i915->uncore;
- enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
- bool is_tc_port = intel_phy_is_tc(i915, phy);
- i915_reg_t ch_ctl, ch_data[5];
- u32 aux_clock_divider;
- enum intel_display_power_domain aux_domain;
- intel_wakeref_t aux_wakeref;
- intel_wakeref_t pps_wakeref;
- int i, ret, recv_bytes;
- int try, clock = 0;
- u32 status;
- bool vdd;
-
- ch_ctl = intel_dp->aux_ch_ctl_reg(intel_dp);
- for (i = 0; i < ARRAY_SIZE(ch_data); i++)
- ch_data[i] = intel_dp->aux_ch_data_reg(intel_dp, i);
-
- if (is_tc_port)
- intel_tc_port_lock(dig_port);
-
- aux_domain = intel_aux_power_domain(dig_port);
-
- aux_wakeref = intel_display_power_get(i915, aux_domain);
- pps_wakeref = pps_lock(intel_dp);
-
- /*
- * We will be called with VDD already enabled for dpcd/edid/oui reads.
- * In such cases we want to leave VDD enabled and it's up to upper layers
- * to turn it off. But for eg. i2c-dev access we need to turn it on/off
- * ourselves.
- */
- vdd = edp_panel_vdd_on(intel_dp);
-
- /* dp aux is extremely sensitive to irq latency, hence request the
- * lowest possible wakeup latency and so prevent the cpu from going into
- * deep sleep states.
- */
- cpu_latency_qos_update_request(&intel_dp->pm_qos, 0);
-
- intel_dp_check_edp(intel_dp);
-
- /* Try to wait for any previous AUX channel activity */
- for (try = 0; try < 3; try++) {
- status = intel_uncore_read_notrace(uncore, ch_ctl);
- if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)
- break;
- msleep(1);
- }
- /* just trace the final value */
- trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
-
- if (try == 3) {
- const u32 status = intel_uncore_read(uncore, ch_ctl);
-
- if (status != intel_dp->aux_busy_last_status) {
- drm_WARN(&i915->drm, 1,
- "%s: not started (status 0x%08x)\n",
- intel_dp->aux.name, status);
- intel_dp->aux_busy_last_status = status;
- }
-
- ret = -EBUSY;
- goto out;
- }
-
- /* Only 5 data registers! */
- if (drm_WARN_ON(&i915->drm, send_bytes > 20 || recv_size > 20)) {
- ret = -E2BIG;
- goto out;
- }
-
- while ((aux_clock_divider = intel_dp->get_aux_clock_divider(intel_dp, clock++))) {
- u32 send_ctl = intel_dp->get_aux_send_ctl(intel_dp,
- send_bytes,
- aux_clock_divider);
-
- send_ctl |= aux_send_ctl_flags;
-
- /* Must try at least 3 times according to DP spec */
- for (try = 0; try < 5; try++) {
- /* Load the send data into the aux channel data registers */
- for (i = 0; i < send_bytes; i += 4)
- intel_uncore_write(uncore,
- ch_data[i >> 2],
- intel_dp_pack_aux(send + i,
- send_bytes - i));
-
- /* Send the command and wait for it to complete */
- intel_uncore_write(uncore, ch_ctl, send_ctl);
-
- status = intel_dp_aux_wait_done(intel_dp);
-
- /* Clear done status and any errors */
- intel_uncore_write(uncore,
- ch_ctl,
- status |
- DP_AUX_CH_CTL_DONE |
- DP_AUX_CH_CTL_TIME_OUT_ERROR |
- DP_AUX_CH_CTL_RECEIVE_ERROR);
-
- /* DP CTS 1.2 Core Rev 1.1, 4.2.1.1 & 4.2.1.2
- * 400us delay required for errors and timeouts
- * Timeout errors from the HW already meet this
- * requirement so skip to next iteration
- */
- if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR)
- continue;
-
- if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) {
- usleep_range(400, 500);
- continue;
- }
- if (status & DP_AUX_CH_CTL_DONE)
- goto done;
- }
- }
-
- if ((status & DP_AUX_CH_CTL_DONE) == 0) {
- drm_err(&i915->drm, "%s: not done (status 0x%08x)\n",
- intel_dp->aux.name, status);
- ret = -EBUSY;
- goto out;
- }
-
-done:
- /* Check for timeout or receive error.
- * Timeouts occur when the sink is not connected
- */
- if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) {
- drm_err(&i915->drm, "%s: receive error (status 0x%08x)\n",
- intel_dp->aux.name, status);
- ret = -EIO;
- goto out;
- }
-
- /* Timeouts occur when the device isn't connected, so they're
- * "normal" -- don't fill the kernel log with these */
- if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR) {
- drm_dbg_kms(&i915->drm, "%s: timeout (status 0x%08x)\n",
- intel_dp->aux.name, status);
- ret = -ETIMEDOUT;
- goto out;
- }
-
- /* Unload any bytes sent back from the other side */
- recv_bytes = ((status & DP_AUX_CH_CTL_MESSAGE_SIZE_MASK) >>
- DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT);
-
- /*
- * By BSpec: "Message sizes of 0 or >20 are not allowed."
- * We have no idea of what happened so we return -EBUSY so
- * drm layer takes care for the necessary retries.
- */
- if (recv_bytes == 0 || recv_bytes > 20) {
- drm_dbg_kms(&i915->drm,
- "%s: Forbidden recv_bytes = %d on aux transaction\n",
- intel_dp->aux.name, recv_bytes);
- ret = -EBUSY;
- goto out;
- }
-
- if (recv_bytes > recv_size)
- recv_bytes = recv_size;
-
- for (i = 0; i < recv_bytes; i += 4)
- intel_dp_unpack_aux(intel_uncore_read(uncore, ch_data[i >> 2]),
- recv + i, recv_bytes - i);
-
- ret = recv_bytes;
-out:
- cpu_latency_qos_update_request(&intel_dp->pm_qos, PM_QOS_DEFAULT_VALUE);
-
- if (vdd)
- edp_panel_vdd_off(intel_dp, false);
-
- pps_unlock(intel_dp, pps_wakeref);
- intel_display_power_put_async(i915, aux_domain, aux_wakeref);
-
- if (is_tc_port)
- intel_tc_port_unlock(dig_port);
-
- return ret;
-}
-
-#define BARE_ADDRESS_SIZE 3
-#define HEADER_SIZE (BARE_ADDRESS_SIZE + 1)
-
-static void
-intel_dp_aux_header(u8 txbuf[HEADER_SIZE],
- const struct drm_dp_aux_msg *msg)
-{
- txbuf[0] = (msg->request << 4) | ((msg->address >> 16) & 0xf);
- txbuf[1] = (msg->address >> 8) & 0xff;
- txbuf[2] = msg->address & 0xff;
- txbuf[3] = msg->size - 1;
-}
-
-static u32 intel_dp_aux_xfer_flags(const struct drm_dp_aux_msg *msg)
-{
- /*
- * If we're trying to send the HDCP Aksv, we need to set a the Aksv
- * select bit to inform the hardware to send the Aksv after our header
- * since we can't access that data from software.
- */
- if ((msg->request & ~DP_AUX_I2C_MOT) == DP_AUX_NATIVE_WRITE &&
- msg->address == DP_AUX_HDCP_AKSV)
- return DP_AUX_CH_CTL_AUX_AKSV_SELECT;
-
- return 0;
-}
-
-static ssize_t
-intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
-{
- struct intel_dp *intel_dp = container_of(aux, struct intel_dp, aux);
- struct drm_i915_private *i915 = dp_to_i915(intel_dp);
- u8 txbuf[20], rxbuf[20];
- size_t txsize, rxsize;
- u32 flags = intel_dp_aux_xfer_flags(msg);
- int ret;
-
- intel_dp_aux_header(txbuf, msg);
-
- switch (msg->request & ~DP_AUX_I2C_MOT) {
- case DP_AUX_NATIVE_WRITE:
- case DP_AUX_I2C_WRITE:
- case DP_AUX_I2C_WRITE_STATUS_UPDATE:
- txsize = msg->size ? HEADER_SIZE + msg->size : BARE_ADDRESS_SIZE;
- rxsize = 2; /* 0 or 1 data bytes */
-
- if (drm_WARN_ON(&i915->drm, txsize > 20))
- return -E2BIG;
-
- drm_WARN_ON(&i915->drm, !msg->buffer != !msg->size);
-
- if (msg->buffer)
- memcpy(txbuf + HEADER_SIZE, msg->buffer, msg->size);
-
- ret = intel_dp_aux_xfer(intel_dp, txbuf, txsize,
- rxbuf, rxsize, flags);
- if (ret > 0) {
- msg->reply = rxbuf[0] >> 4;
-
- if (ret > 1) {
- /* Number of bytes written in a short write. */
- ret = clamp_t(int, rxbuf[1], 0, msg->size);
- } else {
- /* Return payload size. */
- ret = msg->size;
- }
- }
- break;
-
- case DP_AUX_NATIVE_READ:
- case DP_AUX_I2C_READ:
- txsize = msg->size ? HEADER_SIZE : BARE_ADDRESS_SIZE;
- rxsize = msg->size + 1;
-
- if (drm_WARN_ON(&i915->drm, rxsize > 20))
- return -E2BIG;
-
- ret = intel_dp_aux_xfer(intel_dp, txbuf, txsize,
- rxbuf, rxsize, flags);
- if (ret > 0) {
- msg->reply = rxbuf[0] >> 4;
- /*
- * Assume happy day, and copy the data. The caller is
- * expected to check msg->reply before touching it.
- *
- * Return payload size.
- */
- ret--;
- memcpy(msg->buffer, rxbuf + 1, ret);
- }
- break;
-
- default:
- ret = -EINVAL;
- break;
- }
-
- return ret;
-}
-
-
-static i915_reg_t g4x_aux_ctl_reg(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_D:
- return DP_AUX_CH_CTL(aux_ch);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_CTL(AUX_CH_B);
- }
-}
-
-static i915_reg_t g4x_aux_data_reg(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_D:
- return DP_AUX_CH_DATA(aux_ch, index);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_DATA(AUX_CH_B, index);
- }
-}
-
-static i915_reg_t ilk_aux_ctl_reg(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_A:
- return DP_AUX_CH_CTL(aux_ch);
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_D:
- return PCH_DP_AUX_CH_CTL(aux_ch);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_CTL(AUX_CH_A);
- }
-}
-
-static i915_reg_t ilk_aux_data_reg(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_A:
- return DP_AUX_CH_DATA(aux_ch, index);
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_D:
- return PCH_DP_AUX_CH_DATA(aux_ch, index);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_DATA(AUX_CH_A, index);
- }
-}
-
-static i915_reg_t skl_aux_ctl_reg(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_A:
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_D:
- case AUX_CH_E:
- case AUX_CH_F:
- return DP_AUX_CH_CTL(aux_ch);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_CTL(AUX_CH_A);
- }
-}
-
-static i915_reg_t skl_aux_data_reg(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_A:
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_D:
- case AUX_CH_E:
- case AUX_CH_F:
- return DP_AUX_CH_DATA(aux_ch, index);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_DATA(AUX_CH_A, index);
- }
-}
-
-static i915_reg_t tgl_aux_ctl_reg(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_A:
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_USBC1:
- case AUX_CH_USBC2:
- case AUX_CH_USBC3:
- case AUX_CH_USBC4:
- case AUX_CH_USBC5:
- case AUX_CH_USBC6:
- return DP_AUX_CH_CTL(aux_ch);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_CTL(AUX_CH_A);
- }
-}
-
-static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- switch (aux_ch) {
- case AUX_CH_A:
- case AUX_CH_B:
- case AUX_CH_C:
- case AUX_CH_USBC1:
- case AUX_CH_USBC2:
- case AUX_CH_USBC3:
- case AUX_CH_USBC4:
- case AUX_CH_USBC5:
- case AUX_CH_USBC6:
- return DP_AUX_CH_DATA(aux_ch, index);
- default:
- MISSING_CASE(aux_ch);
- return DP_AUX_CH_DATA(AUX_CH_A, index);
- }
-}
-
-static void
-intel_dp_aux_fini(struct intel_dp *intel_dp)
-{
- if (cpu_latency_qos_request_active(&intel_dp->pm_qos))
- cpu_latency_qos_remove_request(&intel_dp->pm_qos);
-
- kfree(intel_dp->aux.name);
-}
-
-static void
-intel_dp_aux_init(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- struct intel_encoder *encoder = &dig_port->base;
- enum aux_ch aux_ch = dig_port->aux_ch;
-
- if (INTEL_GEN(dev_priv) >= 12) {
- intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
- intel_dp->aux_ch_data_reg = tgl_aux_data_reg;
- } else if (INTEL_GEN(dev_priv) >= 9) {
- intel_dp->aux_ch_ctl_reg = skl_aux_ctl_reg;
- intel_dp->aux_ch_data_reg = skl_aux_data_reg;
- } else if (HAS_PCH_SPLIT(dev_priv)) {
- intel_dp->aux_ch_ctl_reg = ilk_aux_ctl_reg;
- intel_dp->aux_ch_data_reg = ilk_aux_data_reg;
- } else {
- intel_dp->aux_ch_ctl_reg = g4x_aux_ctl_reg;
- intel_dp->aux_ch_data_reg = g4x_aux_data_reg;
- }
-
- if (INTEL_GEN(dev_priv) >= 9)
- intel_dp->get_aux_clock_divider = skl_get_aux_clock_divider;
- else if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
- intel_dp->get_aux_clock_divider = hsw_get_aux_clock_divider;
- else if (HAS_PCH_SPLIT(dev_priv))
- intel_dp->get_aux_clock_divider = ilk_get_aux_clock_divider;
- else
- intel_dp->get_aux_clock_divider = g4x_get_aux_clock_divider;
-
- if (INTEL_GEN(dev_priv) >= 9)
- intel_dp->get_aux_send_ctl = skl_get_aux_send_ctl;
- else
- intel_dp->get_aux_send_ctl = g4x_get_aux_send_ctl;
-
- drm_dp_aux_init(&intel_dp->aux);
-
- /* Failure to allocate our preferred name is not critical */
- if (INTEL_GEN(dev_priv) >= 12 && aux_ch >= AUX_CH_USBC1)
- intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX USBC%c/%s",
- aux_ch - AUX_CH_USBC1 + '1',
- encoder->base.name);
- else
- intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %c/%s",
- aux_ch_name(aux_ch),
- encoder->base.name);
-
- intel_dp->aux.transfer = intel_dp_aux_transfer;
- cpu_latency_qos_add_request(&intel_dp->pm_qos, PM_QOS_DEFAULT_VALUE);
-}
-
bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp)
{
int max_rate = intel_dp->source_rates[intel_dp->num_source_rates - 1];
@@ -2844,6 +1725,9 @@ intel_dp_drrs_compute_config(struct intel_dp *intel_dp,
struct intel_connector *intel_connector = intel_dp->attached_connector;
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ if (pipe_config->vrr.enable)
+ return;
+
/*
* DRRS and PSR can't be enable together, so giving preference to PSR
* as it allows more power-savings by complete shutting down display,
@@ -2876,8 +1760,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
struct intel_connector *intel_connector = intel_dp->attached_connector;
struct intel_digital_connector_state *intel_conn_state =
to_intel_digital_connector_state(conn_state);
- bool constant_n = drm_dp_has_quirk(&intel_dp->desc, 0,
- DP_DPCD_QUIRK_CONSTANT_N);
+ bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N);
int ret = 0, output_bpp;
if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && port != PORT_A)
@@ -2947,6 +1830,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
if (!HAS_DDI(dev_priv))
intel_dp_set_clock(encoder, pipe_config);
+ intel_vrr_compute_config(pipe_config, conn_state);
intel_psr_compute_config(intel_dp, pipe_config);
intel_dp_drrs_compute_config(intel_dp, pipe_config, output_bpp,
constant_n);
@@ -3047,431 +1931,6 @@ static void intel_dp_prepare(struct intel_encoder *encoder,
}
}
-#define IDLE_ON_MASK (PP_ON | PP_SEQUENCE_MASK | 0 | PP_SEQUENCE_STATE_MASK)
-#define IDLE_ON_VALUE (PP_ON | PP_SEQUENCE_NONE | 0 | PP_SEQUENCE_STATE_ON_IDLE)
-
-#define IDLE_OFF_MASK (PP_ON | PP_SEQUENCE_MASK | 0 | 0)
-#define IDLE_OFF_VALUE (0 | PP_SEQUENCE_NONE | 0 | 0)
-
-#define IDLE_CYCLE_MASK (PP_ON | PP_SEQUENCE_MASK | PP_CYCLE_DELAY_ACTIVE | PP_SEQUENCE_STATE_MASK)
-#define IDLE_CYCLE_VALUE (0 | PP_SEQUENCE_NONE | 0 | PP_SEQUENCE_STATE_OFF_IDLE)
-
-static void intel_pps_verify_state(struct intel_dp *intel_dp);
-
-static void wait_panel_status(struct intel_dp *intel_dp,
- u32 mask,
- u32 value)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- i915_reg_t pp_stat_reg, pp_ctrl_reg;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- intel_pps_verify_state(intel_dp);
-
- pp_stat_reg = _pp_stat_reg(intel_dp);
- pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
-
- drm_dbg_kms(&dev_priv->drm,
- "mask %08x value %08x status %08x control %08x\n",
- mask, value,
- intel_de_read(dev_priv, pp_stat_reg),
- intel_de_read(dev_priv, pp_ctrl_reg));
-
- if (intel_de_wait_for_register(dev_priv, pp_stat_reg,
- mask, value, 5000))
- drm_err(&dev_priv->drm,
- "Panel status timeout: status %08x control %08x\n",
- intel_de_read(dev_priv, pp_stat_reg),
- intel_de_read(dev_priv, pp_ctrl_reg));
-
- drm_dbg_kms(&dev_priv->drm, "Wait complete\n");
-}
-
-static void wait_panel_on(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-
- drm_dbg_kms(&i915->drm, "Wait for panel power on\n");
- wait_panel_status(intel_dp, IDLE_ON_MASK, IDLE_ON_VALUE);
-}
-
-static void wait_panel_off(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-
- drm_dbg_kms(&i915->drm, "Wait for panel power off time\n");
- wait_panel_status(intel_dp, IDLE_OFF_MASK, IDLE_OFF_VALUE);
-}
-
-static void wait_panel_power_cycle(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *i915 = dp_to_i915(intel_dp);
- ktime_t panel_power_on_time;
- s64 panel_power_off_duration;
-
- drm_dbg_kms(&i915->drm, "Wait for panel power cycle\n");
-
- /* take the difference of currrent time and panel power off time
- * and then make panel wait for t11_t12 if needed. */
- panel_power_on_time = ktime_get_boottime();
- panel_power_off_duration = ktime_ms_delta(panel_power_on_time, intel_dp->panel_power_off_time);
-
- /* When we disable the VDD override bit last we have to do the manual
- * wait. */
- if (panel_power_off_duration < (s64)intel_dp->panel_power_cycle_delay)
- wait_remaining_ms_from_jiffies(jiffies,
- intel_dp->panel_power_cycle_delay - panel_power_off_duration);
-
- wait_panel_status(intel_dp, IDLE_CYCLE_MASK, IDLE_CYCLE_VALUE);
-}
-
-static void wait_backlight_on(struct intel_dp *intel_dp)
-{
- wait_remaining_ms_from_jiffies(intel_dp->last_power_on,
- intel_dp->backlight_on_delay);
-}
-
-static void edp_wait_backlight_off(struct intel_dp *intel_dp)
-{
- wait_remaining_ms_from_jiffies(intel_dp->last_backlight_off,
- intel_dp->backlight_off_delay);
-}
-
-/* Read the current pp_control value, unlocking the register if it
- * is locked
- */
-
-static u32 ilk_get_pp_control(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- u32 control;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- control = intel_de_read(dev_priv, _pp_ctrl_reg(intel_dp));
- if (drm_WARN_ON(&dev_priv->drm, !HAS_DDI(dev_priv) &&
- (control & PANEL_UNLOCK_MASK) != PANEL_UNLOCK_REGS)) {
- control &= ~PANEL_UNLOCK_MASK;
- control |= PANEL_UNLOCK_REGS;
- }
- return control;
-}
-
-/*
- * Must be paired with edp_panel_vdd_off().
- * Must hold pps_mutex around the whole on/off sequence.
- * Can be nested with intel_edp_panel_vdd_{on,off}() calls.
- */
-static bool edp_panel_vdd_on(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- u32 pp;
- i915_reg_t pp_stat_reg, pp_ctrl_reg;
- bool need_to_disable = !intel_dp->want_panel_vdd;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if (!intel_dp_is_edp(intel_dp))
- return false;
-
- cancel_delayed_work(&intel_dp->panel_vdd_work);
- intel_dp->want_panel_vdd = true;
-
- if (edp_have_panel_vdd(intel_dp))
- return need_to_disable;
-
- drm_WARN_ON(&dev_priv->drm, intel_dp->vdd_wakeref);
- intel_dp->vdd_wakeref = intel_display_power_get(dev_priv,
- intel_aux_power_domain(dig_port));
-
- drm_dbg_kms(&dev_priv->drm, "Turning [ENCODER:%d:%s] VDD on\n",
- dig_port->base.base.base.id,
- dig_port->base.base.name);
-
- if (!edp_have_panel_power(intel_dp))
- wait_panel_power_cycle(intel_dp);
-
- pp = ilk_get_pp_control(intel_dp);
- pp |= EDP_FORCE_VDD;
-
- pp_stat_reg = _pp_stat_reg(intel_dp);
- pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
-
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
- drm_dbg_kms(&dev_priv->drm, "PP_STATUS: 0x%08x PP_CONTROL: 0x%08x\n",
- intel_de_read(dev_priv, pp_stat_reg),
- intel_de_read(dev_priv, pp_ctrl_reg));
- /*
- * If the panel wasn't on, delay before accessing aux channel
- */
- if (!edp_have_panel_power(intel_dp)) {
- drm_dbg_kms(&dev_priv->drm,
- "[ENCODER:%d:%s] panel power wasn't enabled\n",
- dig_port->base.base.base.id,
- dig_port->base.base.name);
- msleep(intel_dp->panel_power_up_delay);
- }
-
- return need_to_disable;
-}
-
-/*
- * Must be paired with intel_edp_panel_vdd_off() or
- * intel_edp_panel_off().
- * Nested calls to these functions are not allowed since
- * we drop the lock. Caller must use some higher level
- * locking to prevent nested calls from other threads.
- */
-void intel_edp_panel_vdd_on(struct intel_dp *intel_dp)
-{
- intel_wakeref_t wakeref;
- bool vdd;
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- vdd = false;
- with_pps_lock(intel_dp, wakeref)
- vdd = edp_panel_vdd_on(intel_dp);
- I915_STATE_WARN(!vdd, "[ENCODER:%d:%s] VDD already requested on\n",
- dp_to_dig_port(intel_dp)->base.base.base.id,
- dp_to_dig_port(intel_dp)->base.base.name);
-}
-
-static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port =
- dp_to_dig_port(intel_dp);
- u32 pp;
- i915_reg_t pp_stat_reg, pp_ctrl_reg;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- drm_WARN_ON(&dev_priv->drm, intel_dp->want_panel_vdd);
-
- if (!edp_have_panel_vdd(intel_dp))
- return;
-
- drm_dbg_kms(&dev_priv->drm, "Turning [ENCODER:%d:%s] VDD off\n",
- dig_port->base.base.base.id,
- dig_port->base.base.name);
-
- pp = ilk_get_pp_control(intel_dp);
- pp &= ~EDP_FORCE_VDD;
-
- pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
- pp_stat_reg = _pp_stat_reg(intel_dp);
-
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
-
- /* Make sure sequencer is idle before allowing subsequent activity */
- drm_dbg_kms(&dev_priv->drm, "PP_STATUS: 0x%08x PP_CONTROL: 0x%08x\n",
- intel_de_read(dev_priv, pp_stat_reg),
- intel_de_read(dev_priv, pp_ctrl_reg));
-
- if ((pp & PANEL_POWER_ON) == 0)
- intel_dp->panel_power_off_time = ktime_get_boottime();
-
- intel_display_power_put(dev_priv,
- intel_aux_power_domain(dig_port),
- fetch_and_zero(&intel_dp->vdd_wakeref));
-}
-
-static void edp_panel_vdd_work(struct work_struct *__work)
-{
- struct intel_dp *intel_dp =
- container_of(to_delayed_work(__work),
- struct intel_dp, panel_vdd_work);
- intel_wakeref_t wakeref;
-
- with_pps_lock(intel_dp, wakeref) {
- if (!intel_dp->want_panel_vdd)
- edp_panel_vdd_off_sync(intel_dp);
- }
-}
-
-static void edp_panel_vdd_schedule_off(struct intel_dp *intel_dp)
-{
- unsigned long delay;
-
- /*
- * Queue the timer to fire a long time from now (relative to the power
- * down delay) to keep the panel power up across a sequence of
- * operations.
- */
- delay = msecs_to_jiffies(intel_dp->panel_power_cycle_delay * 5);
- schedule_delayed_work(&intel_dp->panel_vdd_work, delay);
-}
-
-/*
- * Must be paired with edp_panel_vdd_on().
- * Must hold pps_mutex around the whole on/off sequence.
- * Can be nested with intel_edp_panel_vdd_{on,off}() calls.
- */
-static void edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- I915_STATE_WARN(!intel_dp->want_panel_vdd, "[ENCODER:%d:%s] VDD not forced on",
- dp_to_dig_port(intel_dp)->base.base.base.id,
- dp_to_dig_port(intel_dp)->base.base.name);
-
- intel_dp->want_panel_vdd = false;
-
- if (sync)
- edp_panel_vdd_off_sync(intel_dp);
- else
- edp_panel_vdd_schedule_off(intel_dp);
-}
-
-static void edp_panel_on(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- u32 pp;
- i915_reg_t pp_ctrl_reg;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- drm_dbg_kms(&dev_priv->drm, "Turn [ENCODER:%d:%s] panel power on\n",
- dp_to_dig_port(intel_dp)->base.base.base.id,
- dp_to_dig_port(intel_dp)->base.base.name);
-
- if (drm_WARN(&dev_priv->drm, edp_have_panel_power(intel_dp),
- "[ENCODER:%d:%s] panel power already on\n",
- dp_to_dig_port(intel_dp)->base.base.base.id,
- dp_to_dig_port(intel_dp)->base.base.name))
- return;
-
- wait_panel_power_cycle(intel_dp);
-
- pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
- pp = ilk_get_pp_control(intel_dp);
- if (IS_GEN(dev_priv, 5)) {
- /* ILK workaround: disable reset around power sequence */
- pp &= ~PANEL_POWER_RESET;
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
- }
-
- pp |= PANEL_POWER_ON;
- if (!IS_GEN(dev_priv, 5))
- pp |= PANEL_POWER_RESET;
-
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
-
- wait_panel_on(intel_dp);
- intel_dp->last_power_on = jiffies;
-
- if (IS_GEN(dev_priv, 5)) {
- pp |= PANEL_POWER_RESET; /* restore panel reset bit */
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
- }
-}
-
-void intel_edp_panel_on(struct intel_dp *intel_dp)
-{
- intel_wakeref_t wakeref;
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- with_pps_lock(intel_dp, wakeref)
- edp_panel_on(intel_dp);
-}
-
-
-static void edp_panel_off(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- u32 pp;
- i915_reg_t pp_ctrl_reg;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- drm_dbg_kms(&dev_priv->drm, "Turn [ENCODER:%d:%s] panel power off\n",
- dig_port->base.base.base.id, dig_port->base.base.name);
-
- drm_WARN(&dev_priv->drm, !intel_dp->want_panel_vdd,
- "Need [ENCODER:%d:%s] VDD to turn off panel\n",
- dig_port->base.base.base.id, dig_port->base.base.name);
-
- pp = ilk_get_pp_control(intel_dp);
- /* We need to switch off panel power _and_ force vdd, for otherwise some
- * panels get very unhappy and cease to work. */
- pp &= ~(PANEL_POWER_ON | PANEL_POWER_RESET | EDP_FORCE_VDD |
- EDP_BLC_ENABLE);
-
- pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
-
- intel_dp->want_panel_vdd = false;
-
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
-
- wait_panel_off(intel_dp);
- intel_dp->panel_power_off_time = ktime_get_boottime();
-
- /* We got a reference when we enabled the VDD. */
- intel_display_power_put(dev_priv,
- intel_aux_power_domain(dig_port),
- fetch_and_zero(&intel_dp->vdd_wakeref));
-}
-
-void intel_edp_panel_off(struct intel_dp *intel_dp)
-{
- intel_wakeref_t wakeref;
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- with_pps_lock(intel_dp, wakeref)
- edp_panel_off(intel_dp);
-}
-
-/* Enable backlight in the panel power control. */
-static void _intel_edp_backlight_on(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- intel_wakeref_t wakeref;
-
- /*
- * If we enable the backlight right away following a panel power
- * on, we may see slight flicker as the panel syncs with the eDP
- * link. So delay a bit to make sure the image is solid before
- * allowing it to appear.
- */
- wait_backlight_on(intel_dp);
-
- with_pps_lock(intel_dp, wakeref) {
- i915_reg_t pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
- u32 pp;
-
- pp = ilk_get_pp_control(intel_dp);
- pp |= EDP_BLC_ENABLE;
-
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
- }
-}
/* Enable backlight PWM and backlight PP control. */
void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
@@ -3486,31 +1945,7 @@ void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
drm_dbg_kms(&i915->drm, "\n");
intel_panel_enable_backlight(crtc_state, conn_state);
- _intel_edp_backlight_on(intel_dp);
-}
-
-/* Disable backlight in the panel power control. */
-static void _intel_edp_backlight_off(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- intel_wakeref_t wakeref;
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- with_pps_lock(intel_dp, wakeref) {
- i915_reg_t pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
- u32 pp;
-
- pp = ilk_get_pp_control(intel_dp);
- pp &= ~EDP_BLC_ENABLE;
-
- intel_de_write(dev_priv, pp_ctrl_reg, pp);
- intel_de_posting_read(dev_priv, pp_ctrl_reg);
- }
-
- intel_dp->last_backlight_off = jiffies;
- edp_wait_backlight_off(intel_dp);
+ intel_pps_backlight_on(intel_dp);
}
/* Disable backlight PP control and backlight PWM. */
@@ -3524,37 +1959,10 @@ void intel_edp_backlight_off(const struct drm_connector_state *old_conn_state)
drm_dbg_kms(&i915->drm, "\n");
- _intel_edp_backlight_off(intel_dp);
+ intel_pps_backlight_off(intel_dp);
intel_panel_disable_backlight(old_conn_state);
}
-/*
- * Hook for controlling the panel power control backlight through the bl_power
- * sysfs attribute. Take care to handle multiple calls.
- */
-static void intel_edp_backlight_power(struct intel_connector *connector,
- bool enable)
-{
- struct drm_i915_private *i915 = to_i915(connector->base.dev);
- struct intel_dp *intel_dp = intel_attached_dp(connector);
- intel_wakeref_t wakeref;
- bool is_enabled;
-
- is_enabled = false;
- with_pps_lock(intel_dp, wakeref)
- is_enabled = ilk_get_pp_control(intel_dp) & EDP_BLC_ENABLE;
- if (is_enabled == enable)
- return;
-
- drm_dbg_kms(&i915->drm, "panel power control backlight %s\n",
- enable ? "enable" : "disable");
-
- if (enable)
- _intel_edp_backlight_on(intel_dp);
- else
- _intel_edp_backlight_off(intel_dp);
-}
-
static void assert_dp_port(struct intel_dp *intel_dp, bool state)
{
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
@@ -3975,10 +2383,10 @@ static void intel_disable_dp(struct intel_atomic_state *state,
/* Make sure the panel is off before trying to change the mode. But also
* ensure that we have vdd while we switch off the panel. */
- intel_edp_panel_vdd_on(intel_dp);
+ intel_pps_vdd_on(intel_dp);
intel_edp_backlight_off(old_conn_state);
intel_dp_set_power(intel_dp, DP_SET_POWER_D3);
- intel_edp_panel_off(intel_dp);
+ intel_pps_off(intel_dp);
intel_dp->frl.is_trained = false;
intel_dp->frl.trained_rate_gbps = 0;
}
@@ -4488,15 +2896,15 @@ static void intel_enable_dp(struct intel_atomic_state *state,
if (drm_WARN_ON(&dev_priv->drm, dp_reg & DP_PORT_EN))
return;
- with_pps_lock(intel_dp, wakeref) {
+ with_intel_pps_lock(intel_dp, wakeref) {
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- vlv_init_panel_power_sequencer(encoder, pipe_config);
+ vlv_pps_init(encoder, pipe_config);
intel_dp_enable_port(intel_dp, pipe_config);
- edp_panel_vdd_on(intel_dp);
- edp_panel_on(intel_dp);
- edp_panel_vdd_off(intel_dp, true);
+ intel_pps_vdd_on_unlocked(intel_dp);
+ intel_pps_on_unlocked(intel_dp);
+ intel_pps_vdd_off_unlocked(intel_dp, true);
}
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
@@ -4555,112 +2963,6 @@ static void g4x_pre_enable_dp(struct intel_atomic_state *state,
ilk_edp_pll_on(intel_dp, pipe_config);
}
-static void vlv_detach_power_sequencer(struct intel_dp *intel_dp)
-{
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
- enum pipe pipe = intel_dp->pps_pipe;
- i915_reg_t pp_on_reg = PP_ON_DELAYS(pipe);
-
- drm_WARN_ON(&dev_priv->drm, intel_dp->active_pipe != INVALID_PIPE);
-
- if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
- return;
-
- edp_panel_vdd_off_sync(intel_dp);
-
- /*
- * VLV seems to get confused when multiple power sequencers
- * have the same port selected (even if only one has power/vdd
- * enabled). The failure manifests as vlv_wait_port_ready() failing
- * CHV on the other hand doesn't seem to mind having the same port
- * selected in multiple power sequencers, but let's clear the
- * port select always when logically disconnecting a power sequencer
- * from a port.
- */
- drm_dbg_kms(&dev_priv->drm,
- "detaching pipe %c power sequencer from [ENCODER:%d:%s]\n",
- pipe_name(pipe), dig_port->base.base.base.id,
- dig_port->base.base.name);
- intel_de_write(dev_priv, pp_on_reg, 0);
- intel_de_posting_read(dev_priv, pp_on_reg);
-
- intel_dp->pps_pipe = INVALID_PIPE;
-}
-
-static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- struct intel_encoder *encoder;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- for_each_intel_dp(&dev_priv->drm, encoder) {
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
- drm_WARN(&dev_priv->drm, intel_dp->active_pipe == pipe,
- "stealing pipe %c power sequencer from active [ENCODER:%d:%s]\n",
- pipe_name(pipe), encoder->base.base.id,
- encoder->base.name);
-
- if (intel_dp->pps_pipe != pipe)
- continue;
-
- drm_dbg_kms(&dev_priv->drm,
- "stealing pipe %c power sequencer from [ENCODER:%d:%s]\n",
- pipe_name(pipe), encoder->base.base.id,
- encoder->base.name);
-
- /* make sure vdd is off before we steal it */
- vlv_detach_power_sequencer(intel_dp);
- }
-}
-
-static void vlv_init_panel_power_sequencer(struct intel_encoder *encoder,
- const struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- drm_WARN_ON(&dev_priv->drm, intel_dp->active_pipe != INVALID_PIPE);
-
- if (intel_dp->pps_pipe != INVALID_PIPE &&
- intel_dp->pps_pipe != crtc->pipe) {
- /*
- * If another power sequencer was being used on this
- * port previously make sure to turn off vdd there while
- * we still have control of it.
- */
- vlv_detach_power_sequencer(intel_dp);
- }
-
- /*
- * We may be stealing the power
- * sequencer from another port.
- */
- vlv_steal_power_sequencer(dev_priv, crtc->pipe);
-
- intel_dp->active_pipe = crtc->pipe;
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- /* now it's all ours */
- intel_dp->pps_pipe = crtc->pipe;
-
- drm_dbg_kms(&dev_priv->drm,
- "initializing pipe %c power sequencer for [ENCODER:%d:%s]\n",
- pipe_name(intel_dp->pps_pipe), encoder->base.base.id,
- encoder->base.name);
-
- /* init power sequencer on this pipe and port */
- intel_dp_init_panel_power_sequencer(intel_dp);
- intel_dp_init_panel_power_sequencer_registers(intel_dp, true);
-}
-
static void vlv_pre_enable_dp(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
@@ -5060,22 +3362,19 @@ ivb_cpu_edp_set_signal_levels(struct intel_dp *intel_dp,
intel_de_posting_read(dev_priv, intel_dp->output_reg);
}
-void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
- const struct intel_crtc_state *crtc_state)
+static char dp_training_pattern_name(u8 train_pat)
{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- u8 train_set = intel_dp->train_set[0];
-
- drm_dbg_kms(&dev_priv->drm, "Using vswing level %d%s\n",
- train_set & DP_TRAIN_VOLTAGE_SWING_MASK,
- train_set & DP_TRAIN_MAX_SWING_REACHED ? " (max)" : "");
- drm_dbg_kms(&dev_priv->drm, "Using pre-emphasis level %d%s\n",
- (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) >>
- DP_TRAIN_PRE_EMPHASIS_SHIFT,
- train_set & DP_TRAIN_MAX_PRE_EMPHASIS_REACHED ?
- " (max)" : "");
-
- intel_dp->set_signal_levels(intel_dp, crtc_state);
+ switch (train_pat) {
+ case DP_TRAINING_PATTERN_1:
+ case DP_TRAINING_PATTERN_2:
+ case DP_TRAINING_PATTERN_3:
+ return '0' + train_pat;
+ case DP_TRAINING_PATTERN_4:
+ return '4';
+ default:
+ MISSING_CASE(train_pat);
+ return '?';
+ }
}
void
@@ -5083,13 +3382,15 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
u8 dp_train_pat)
{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
- if ((intel_dp_training_pattern_symbol(dp_train_pat)) !=
- DP_TRAINING_PATTERN_DISABLE)
+ if (train_pat != DP_TRAINING_PATTERN_DISABLE)
drm_dbg_kms(&dev_priv->drm,
- "Using DP training pattern TPS%d\n",
- intel_dp_training_pattern_symbol(dp_train_pat));
+ "[ENCODER:%d:%s] Using DP training pattern TPS%c\n",
+ encoder->base.base.id, encoder->base.name,
+ dp_training_pattern_name(train_pat));
intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
}
@@ -5155,15 +3456,15 @@ intel_dp_link_down(struct intel_encoder *encoder,
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
}
- msleep(intel_dp->panel_power_down_delay);
+ msleep(intel_dp->pps.panel_power_down_delay);
intel_dp->DP = DP;
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
intel_wakeref_t wakeref;
- with_pps_lock(intel_dp, wakeref)
- intel_dp->active_pipe = INVALID_PIPE;
+ with_intel_pps_lock(intel_dp, wakeref)
+ intel_dp->pps.active_pipe = INVALID_PIPE;
}
}
@@ -6132,7 +4433,7 @@ static void intel_dp_process_phy_request(struct intel_dp *intel_dp,
intel_dp_autotest_phy_ddi_disable(intel_dp, crtc_state);
- intel_dp_set_signal_levels(intel_dp, crtc_state);
+ intel_dp_set_signal_levels(intel_dp, crtc_state, DP_PHY_DPRX);
intel_dp_phy_pattern_update(intel_dp, crtc_state);
@@ -6205,6 +4506,17 @@ update_status:
"Could not write test response to sink\n");
}
+static void
+intel_dp_mst_hpd_irq(struct intel_dp *intel_dp, u8 *esi, bool *handled)
+{
+ drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, handled);
+
+ if (esi[1] & DP_CP_IRQ) {
+ intel_hdcp_handle_cp_irq(intel_dp->attached_connector);
+ *handled = true;
+ }
+}
+
/**
* intel_dp_check_mst_status - service any pending MST interrupts, check link status
* @intel_dp: Intel DP struct
@@ -6249,7 +4561,8 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
- drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, &handled);
+ intel_dp_mst_hpd_irq(intel_dp, esi, &handled);
+
if (!handled)
break;
@@ -6573,7 +4886,7 @@ static int intel_dp_do_phy_test(struct intel_encoder *encoder,
return 0;
}
-static void intel_dp_phy_test(struct intel_encoder *encoder)
+void intel_dp_phy_test(struct intel_encoder *encoder)
{
struct drm_modeset_acquire_ctx ctx;
int ret;
@@ -7008,8 +5321,8 @@ intel_dp_update_420(struct intel_dp *intel_dp)
intel_dp->downstream_ports);
rgb_to_ycbcr = drm_dp_downstream_rgb_to_ycbcr_conversion(intel_dp->dpcd,
intel_dp->downstream_ports,
- DP_DS_HDMI_BT601_RGB_YCBCR_CONV ||
- DP_DS_HDMI_BT709_RGB_YCBCR_CONV ||
+ DP_DS_HDMI_BT601_RGB_YCBCR_CONV |
+ DP_DS_HDMI_BT709_RGB_YCBCR_CONV |
DP_DS_HDMI_BT2020_RGB_YCBCR_CONV);
if (INTEL_GEN(i915) >= 11) {
@@ -7060,7 +5373,6 @@ intel_dp_set_edid(struct intel_dp *intel_dp)
}
drm_dp_cec_set_edid(&intel_dp->aux, edid);
- intel_dp->edid_quirks = drm_dp_get_edid_quirks(edid);
}
static void
@@ -7074,7 +5386,6 @@ intel_dp_unset_edid(struct intel_dp *intel_dp)
intel_dp->has_hdmi_sink = false;
intel_dp->has_audio = false;
- intel_dp->edid_quirks = 0;
intel_dp->dfp.max_bpc = 0;
intel_dp->dfp.max_dotclock = 0;
@@ -7241,6 +5552,10 @@ static int intel_dp_get_modes(struct drm_connector *connector)
edid = intel_connector->detect_edid;
if (edid) {
int ret = intel_connector_update_modes(connector, edid);
+
+ if (intel_vrr_is_capable(connector))
+ drm_connector_set_vrr_capable_property(connector,
+ true);
if (ret)
return ret;
}
@@ -7329,17 +5644,8 @@ void intel_dp_encoder_flush_work(struct drm_encoder *encoder)
struct intel_dp *intel_dp = &dig_port->dp;
intel_dp_mst_encoder_cleanup(dig_port);
- if (intel_dp_is_edp(intel_dp)) {
- intel_wakeref_t wakeref;
- cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
- /*
- * vdd might still be enabled do to the delayed vdd off.
- * Make sure vdd is actually turned off here.
- */
- with_pps_lock(intel_dp, wakeref)
- edp_panel_vdd_off_sync(intel_dp);
- }
+ intel_pps_vdd_off_sync(intel_dp);
intel_dp_aux_fini(intel_dp);
}
@@ -7355,55 +5661,15 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder)
void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
{
struct intel_dp *intel_dp = enc_to_intel_dp(intel_encoder);
- intel_wakeref_t wakeref;
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- /*
- * vdd might still be enabled do to the delayed vdd off.
- * Make sure vdd is actually turned off here.
- */
- cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
- with_pps_lock(intel_dp, wakeref)
- edp_panel_vdd_off_sync(intel_dp);
+ intel_pps_vdd_off_sync(intel_dp);
}
void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder)
{
struct intel_dp *intel_dp = enc_to_intel_dp(intel_encoder);
- intel_wakeref_t wakeref;
-
- if (!intel_dp_is_edp(intel_dp))
- return;
-
- with_pps_lock(intel_dp, wakeref)
- wait_panel_power_cycle(intel_dp);
-}
-
-static void intel_edp_panel_vdd_sanitize(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- if (!edp_have_panel_vdd(intel_dp))
- return;
-
- /*
- * The VDD bit needs a power domain reference, so if the bit is
- * already enabled when we boot or resume, grab this reference and
- * schedule a vdd off, so we don't hold on to the reference
- * indefinitely.
- */
- drm_dbg_kms(&dev_priv->drm,
- "VDD left on by BIOS, adjusting state tracking\n");
- drm_WARN_ON(&dev_priv->drm, intel_dp->vdd_wakeref);
- intel_dp->vdd_wakeref = intel_display_power_get(dev_priv,
- intel_aux_power_domain(dig_port));
-
- edp_panel_vdd_schedule_off(intel_dp);
+ intel_pps_wait_power_cycle(intel_dp);
}
static enum pipe vlv_active_pipe(struct intel_dp *intel_dp)
@@ -7423,30 +5689,20 @@ void intel_dp_encoder_reset(struct drm_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(encoder->dev);
struct intel_dp *intel_dp = enc_to_intel_dp(to_intel_encoder(encoder));
- intel_wakeref_t wakeref;
if (!HAS_DDI(dev_priv))
intel_dp->DP = intel_de_read(dev_priv, intel_dp->output_reg);
intel_dp->reset_link_params = true;
- if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv) &&
- !intel_dp_is_edp(intel_dp))
- return;
-
- with_pps_lock(intel_dp, wakeref) {
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- intel_dp->active_pipe = vlv_active_pipe(intel_dp);
+ if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+ intel_wakeref_t wakeref;
- if (intel_dp_is_edp(intel_dp)) {
- /*
- * Reinit the power sequencer, in case BIOS did
- * something nasty with it.
- */
- intel_dp_pps_init(intel_dp);
- intel_edp_panel_vdd_sanitize(intel_dp);
- }
+ with_intel_pps_lock(intel_dp, wakeref)
+ intel_dp->pps.active_pipe = vlv_active_pipe(intel_dp);
}
+
+ intel_pps_encoder_reset(intel_dp);
}
static int intel_modeset_tile_group(struct intel_atomic_state *state,
@@ -7611,19 +5867,6 @@ static const struct drm_encoder_funcs intel_dp_enc_funcs = {
.destroy = intel_dp_encoder_destroy,
};
-static bool intel_edp_have_power(struct intel_dp *intel_dp)
-{
- intel_wakeref_t wakeref;
- bool have_power = false;
-
- with_pps_lock(intel_dp, wakeref) {
- have_power = edp_have_panel_power(intel_dp) &&
- edp_have_panel_vdd(intel_dp);
- }
-
- return have_power;
-}
-
enum irqreturn
intel_dp_hpd_pulse(struct intel_digital_port *dig_port, bool long_hpd)
{
@@ -7631,7 +5874,7 @@ intel_dp_hpd_pulse(struct intel_digital_port *dig_port, bool long_hpd)
struct intel_dp *intel_dp = &dig_port->dp;
if (dig_port->base.type == INTEL_OUTPUT_EDP &&
- (long_hpd || !intel_edp_have_power(intel_dp))) {
+ (long_hpd || !intel_pps_have_power(intel_dp))) {
/*
* vdd off can generate a long/short pulse on eDP which
* would require vdd on to handle it, and thus we
@@ -7725,277 +5968,9 @@ intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connect
connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT;
}
-}
-static void intel_dp_init_panel_power_timestamps(struct intel_dp *intel_dp)
-{
- intel_dp->panel_power_off_time = ktime_get_boottime();
- intel_dp->last_power_on = jiffies;
- intel_dp->last_backlight_off = jiffies;
-}
-
-static void
-intel_pps_readout_hw_state(struct intel_dp *intel_dp, struct edp_power_seq *seq)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- u32 pp_on, pp_off, pp_ctl;
- struct pps_registers regs;
-
- intel_pps_get_registers(intel_dp, &regs);
-
- pp_ctl = ilk_get_pp_control(intel_dp);
-
- /* Ensure PPS is unlocked */
- if (!HAS_DDI(dev_priv))
- intel_de_write(dev_priv, regs.pp_ctrl, pp_ctl);
-
- pp_on = intel_de_read(dev_priv, regs.pp_on);
- pp_off = intel_de_read(dev_priv, regs.pp_off);
-
- /* Pull timing values out of registers */
- seq->t1_t3 = REG_FIELD_GET(PANEL_POWER_UP_DELAY_MASK, pp_on);
- seq->t8 = REG_FIELD_GET(PANEL_LIGHT_ON_DELAY_MASK, pp_on);
- seq->t9 = REG_FIELD_GET(PANEL_LIGHT_OFF_DELAY_MASK, pp_off);
- seq->t10 = REG_FIELD_GET(PANEL_POWER_DOWN_DELAY_MASK, pp_off);
-
- if (i915_mmio_reg_valid(regs.pp_div)) {
- u32 pp_div;
-
- pp_div = intel_de_read(dev_priv, regs.pp_div);
-
- seq->t11_t12 = REG_FIELD_GET(PANEL_POWER_CYCLE_DELAY_MASK, pp_div) * 1000;
- } else {
- seq->t11_t12 = REG_FIELD_GET(BXT_POWER_CYCLE_DELAY_MASK, pp_ctl) * 1000;
- }
-}
-
-static void
-intel_pps_dump_state(const char *state_name, const struct edp_power_seq *seq)
-{
- DRM_DEBUG_KMS("%s t1_t3 %d t8 %d t9 %d t10 %d t11_t12 %d\n",
- state_name,
- seq->t1_t3, seq->t8, seq->t9, seq->t10, seq->t11_t12);
-}
-
-static void
-intel_pps_verify_state(struct intel_dp *intel_dp)
-{
- struct edp_power_seq hw;
- struct edp_power_seq *sw = &intel_dp->pps_delays;
-
- intel_pps_readout_hw_state(intel_dp, &hw);
-
- if (hw.t1_t3 != sw->t1_t3 || hw.t8 != sw->t8 || hw.t9 != sw->t9 ||
- hw.t10 != sw->t10 || hw.t11_t12 != sw->t11_t12) {
- DRM_ERROR("PPS state mismatch\n");
- intel_pps_dump_state("sw", sw);
- intel_pps_dump_state("hw", &hw);
- }
-}
-
-static void
-intel_dp_init_panel_power_sequencer(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- struct edp_power_seq cur, vbt, spec,
- *final = &intel_dp->pps_delays;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- /* already initialized? */
- if (final->t11_t12 != 0)
- return;
-
- intel_pps_readout_hw_state(intel_dp, &cur);
-
- intel_pps_dump_state("cur", &cur);
-
- vbt = dev_priv->vbt.edp.pps;
- /* On Toshiba Satellite P50-C-18C system the VBT T12 delay
- * of 500ms appears to be too short. Ocassionally the panel
- * just fails to power back on. Increasing the delay to 800ms
- * seems sufficient to avoid this problem.
- */
- if (dev_priv->quirks & QUIRK_INCREASE_T12_DELAY) {
- vbt.t11_t12 = max_t(u16, vbt.t11_t12, 1300 * 10);
- drm_dbg_kms(&dev_priv->drm,
- "Increasing T12 panel delay as per the quirk to %d\n",
- vbt.t11_t12);
- }
- /* T11_T12 delay is special and actually in units of 100ms, but zero
- * based in the hw (so we need to add 100 ms). But the sw vbt
- * table multiplies it with 1000 to make it in units of 100usec,
- * too. */
- vbt.t11_t12 += 100 * 10;
-
- /* Upper limits from eDP 1.3 spec. Note that we use the clunky units of
- * our hw here, which are all in 100usec. */
- spec.t1_t3 = 210 * 10;
- spec.t8 = 50 * 10; /* no limit for t8, use t7 instead */
- spec.t9 = 50 * 10; /* no limit for t9, make it symmetric with t8 */
- spec.t10 = 500 * 10;
- /* This one is special and actually in units of 100ms, but zero
- * based in the hw (so we need to add 100 ms). But the sw vbt
- * table multiplies it with 1000 to make it in units of 100usec,
- * too. */
- spec.t11_t12 = (510 + 100) * 10;
-
- intel_pps_dump_state("vbt", &vbt);
-
- /* Use the max of the register settings and vbt. If both are
- * unset, fall back to the spec limits. */
-#define assign_final(field) final->field = (max(cur.field, vbt.field) == 0 ? \
- spec.field : \
- max(cur.field, vbt.field))
- assign_final(t1_t3);
- assign_final(t8);
- assign_final(t9);
- assign_final(t10);
- assign_final(t11_t12);
-#undef assign_final
-
-#define get_delay(field) (DIV_ROUND_UP(final->field, 10))
- intel_dp->panel_power_up_delay = get_delay(t1_t3);
- intel_dp->backlight_on_delay = get_delay(t8);
- intel_dp->backlight_off_delay = get_delay(t9);
- intel_dp->panel_power_down_delay = get_delay(t10);
- intel_dp->panel_power_cycle_delay = get_delay(t11_t12);
-#undef get_delay
-
- drm_dbg_kms(&dev_priv->drm,
- "panel power up delay %d, power down delay %d, power cycle delay %d\n",
- intel_dp->panel_power_up_delay,
- intel_dp->panel_power_down_delay,
- intel_dp->panel_power_cycle_delay);
-
- drm_dbg_kms(&dev_priv->drm, "backlight on delay %d, off delay %d\n",
- intel_dp->backlight_on_delay,
- intel_dp->backlight_off_delay);
-
- /*
- * We override the HW backlight delays to 1 because we do manual waits
- * on them. For T8, even BSpec recommends doing it. For T9, if we
- * don't do this, we'll end up waiting for the backlight off delay
- * twice: once when we do the manual sleep, and once when we disable
- * the panel and wait for the PP_STATUS bit to become zero.
- */
- final->t8 = 1;
- final->t9 = 1;
-
- /*
- * HW has only a 100msec granularity for t11_t12 so round it up
- * accordingly.
- */
- final->t11_t12 = roundup(final->t11_t12, 100 * 10);
-}
-
-static void
-intel_dp_init_panel_power_sequencer_registers(struct intel_dp *intel_dp,
- bool force_disable_vdd)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- u32 pp_on, pp_off, port_sel = 0;
- int div = RUNTIME_INFO(dev_priv)->rawclk_freq / 1000;
- struct pps_registers regs;
- enum port port = dp_to_dig_port(intel_dp)->base.port;
- const struct edp_power_seq *seq = &intel_dp->pps_delays;
-
- lockdep_assert_held(&dev_priv->pps_mutex);
-
- intel_pps_get_registers(intel_dp, &regs);
-
- /*
- * On some VLV machines the BIOS can leave the VDD
- * enabled even on power sequencers which aren't
- * hooked up to any port. This would mess up the
- * power domain tracking the first time we pick
- * one of these power sequencers for use since
- * edp_panel_vdd_on() would notice that the VDD was
- * already on and therefore wouldn't grab the power
- * domain reference. Disable VDD first to avoid this.
- * This also avoids spuriously turning the VDD on as
- * soon as the new power sequencer gets initialized.
- */
- if (force_disable_vdd) {
- u32 pp = ilk_get_pp_control(intel_dp);
-
- drm_WARN(&dev_priv->drm, pp & PANEL_POWER_ON,
- "Panel power already on\n");
-
- if (pp & EDP_FORCE_VDD)
- drm_dbg_kms(&dev_priv->drm,
- "VDD already on, disabling first\n");
-
- pp &= ~EDP_FORCE_VDD;
-
- intel_de_write(dev_priv, regs.pp_ctrl, pp);
- }
-
- pp_on = REG_FIELD_PREP(PANEL_POWER_UP_DELAY_MASK, seq->t1_t3) |
- REG_FIELD_PREP(PANEL_LIGHT_ON_DELAY_MASK, seq->t8);
- pp_off = REG_FIELD_PREP(PANEL_LIGHT_OFF_DELAY_MASK, seq->t9) |
- REG_FIELD_PREP(PANEL_POWER_DOWN_DELAY_MASK, seq->t10);
-
- /* Haswell doesn't have any port selection bits for the panel
- * power sequencer any more. */
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
- port_sel = PANEL_PORT_SELECT_VLV(port);
- } else if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv)) {
- switch (port) {
- case PORT_A:
- port_sel = PANEL_PORT_SELECT_DPA;
- break;
- case PORT_C:
- port_sel = PANEL_PORT_SELECT_DPC;
- break;
- case PORT_D:
- port_sel = PANEL_PORT_SELECT_DPD;
- break;
- default:
- MISSING_CASE(port);
- break;
- }
- }
-
- pp_on |= port_sel;
-
- intel_de_write(dev_priv, regs.pp_on, pp_on);
- intel_de_write(dev_priv, regs.pp_off, pp_off);
-
- /*
- * Compute the divisor for the pp clock, simply match the Bspec formula.
- */
- if (i915_mmio_reg_valid(regs.pp_div)) {
- intel_de_write(dev_priv, regs.pp_div,
- REG_FIELD_PREP(PP_REFERENCE_DIVIDER_MASK, (100 * div) / 2 - 1) | REG_FIELD_PREP(PANEL_POWER_CYCLE_DELAY_MASK, DIV_ROUND_UP(seq->t11_t12, 1000)));
- } else {
- u32 pp_ctl;
-
- pp_ctl = intel_de_read(dev_priv, regs.pp_ctrl);
- pp_ctl &= ~BXT_POWER_CYCLE_DELAY_MASK;
- pp_ctl |= REG_FIELD_PREP(BXT_POWER_CYCLE_DELAY_MASK, DIV_ROUND_UP(seq->t11_t12, 1000));
- intel_de_write(dev_priv, regs.pp_ctrl, pp_ctl);
- }
-
- drm_dbg_kms(&dev_priv->drm,
- "panel power sequencer register settings: PP_ON %#x, PP_OFF %#x, PP_DIV %#x\n",
- intel_de_read(dev_priv, regs.pp_on),
- intel_de_read(dev_priv, regs.pp_off),
- i915_mmio_reg_valid(regs.pp_div) ?
- intel_de_read(dev_priv, regs.pp_div) :
- (intel_de_read(dev_priv, regs.pp_ctrl) & BXT_POWER_CYCLE_DELAY_MASK));
-}
-
-static void intel_dp_pps_init(struct intel_dp *intel_dp)
-{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
- vlv_initial_power_sequencer_setup(intel_dp);
- } else {
- intel_dp_init_panel_power_sequencer(intel_dp);
- intel_dp_init_panel_power_sequencer_registers(intel_dp, false);
- }
+ if (HAS_VRR(dev_priv))
+ drm_connector_attach_vrr_capable_property(connector);
}
/**
@@ -8434,14 +6409,11 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
struct drm_display_mode *downclock_mode = NULL;
bool has_dpcd;
enum pipe pipe = INVALID_PIPE;
- intel_wakeref_t wakeref;
struct edid *edid;
if (!intel_dp_is_edp(intel_dp))
return true;
- INIT_DELAYED_WORK(&intel_dp->panel_vdd_work, edp_panel_vdd_work);
-
/*
* On IBX/CPT we may get here with LVDS already registered. Since the
* driver uses the only internal power sequencer available for both
@@ -8457,11 +6429,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
return false;
}
- with_pps_lock(intel_dp, wakeref) {
- intel_dp_init_panel_power_timestamps(intel_dp);
- intel_dp_pps_init(intel_dp);
- intel_edp_panel_vdd_sanitize(intel_dp);
- }
+ intel_pps_init(intel_dp);
/* Cache DPCD and EDID for edp. */
has_dpcd = intel_edp_init_dpcd(intel_dp);
@@ -8478,7 +6446,6 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
if (edid) {
if (drm_add_edid_modes(connector, edid)) {
drm_connector_update_edid_property(connector, edid);
- intel_dp->edid_quirks = drm_dp_get_edid_quirks(edid);
} else {
kfree(edid);
edid = ERR_PTR(-EINVAL);
@@ -8506,7 +6473,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
pipe = vlv_active_pipe(intel_dp);
if (pipe != PIPE_A && pipe != PIPE_B)
- pipe = intel_dp->pps_pipe;
+ pipe = intel_dp->pps.pps_pipe;
if (pipe != PIPE_A && pipe != PIPE_B)
pipe = PIPE_A;
@@ -8517,7 +6484,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
}
intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode);
- intel_connector->panel.backlight.power = intel_edp_backlight_power;
+ intel_connector->panel.backlight.power = intel_pps_backlight_power;
intel_panel_setup_backlight(connector, pipe);
if (fixed_mode) {
@@ -8529,13 +6496,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
return true;
out_vdd_off:
- cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
- /*
- * vdd might still be enabled do to the delayed vdd off.
- * Make sure vdd is actually turned off here.
- */
- with_pps_lock(intel_dp, wakeref)
- edp_panel_vdd_off_sync(intel_dp);
+ intel_pps_vdd_off_sync(intel_dp);
return false;
}
@@ -8589,8 +6550,8 @@ intel_dp_init_connector(struct intel_digital_port *dig_port,
intel_dp_set_source_rates(intel_dp);
intel_dp->reset_link_params = true;
- intel_dp->pps_pipe = INVALID_PIPE;
- intel_dp->active_pipe = INVALID_PIPE;
+ intel_dp->pps.pps_pipe = INVALID_PIPE;
+ intel_dp->pps.active_pipe = INVALID_PIPE;
/* Preserve the current hw state. */
intel_dp->DP = intel_de_read(dev_priv, intel_dp->output_reg);
@@ -8608,7 +6569,7 @@ intel_dp_init_connector(struct intel_digital_port *dig_port,
}
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- intel_dp->active_pipe = vlv_active_pipe(intel_dp);
+ intel_dp->pps.active_pipe = vlv_active_pipe(intel_dp);
/*
* For eDP we always set the encoder type to INTEL_OUTPUT_EDP, but
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 4280a09fd8fd..d80839139bfb 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -70,16 +70,11 @@ enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *dig_port,
void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
-void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
-void intel_edp_panel_on(struct intel_dp *intel_dp);
-void intel_edp_panel_off(struct intel_dp *intel_dp);
void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
int intel_dp_max_link_rate(struct intel_dp *intel_dp);
int intel_dp_max_lane_count(struct intel_dp *intel_dp);
int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
-void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
-u32 intel_dp_pack_aux(const u8 *src, int src_bytes);
void intel_edp_drrs_enable(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state);
@@ -96,9 +91,6 @@ void
intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
u8 dp_train_pat);
-void
-intel_dp_set_signal_levels(struct intel_dp *intel_dp,
- const struct intel_crtc_state *crtc_state);
void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
u8 *link_bw, u8 *rate_select);
bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
@@ -144,9 +136,11 @@ bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
struct intel_crtc_state *crtc_state);
void intel_dp_sync_state(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state);
+const struct dpll *vlv_get_dpll(struct drm_i915_private *i915);
void intel_dp_check_frl_training(struct intel_dp *intel_dp);
void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state);
+void intel_dp_phy_test(struct intel_encoder *encoder);
#endif /* __INTEL_DP_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
new file mode 100644
index 000000000000..eaebf123310a
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -0,0 +1,692 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020-2021 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "i915_trace.h"
+#include "intel_display_types.h"
+#include "intel_dp_aux.h"
+#include "intel_pps.h"
+#include "intel_tc.h"
+
+u32 intel_dp_pack_aux(const u8 *src, int src_bytes)
+{
+ int i;
+ u32 v = 0;
+
+ if (src_bytes > 4)
+ src_bytes = 4;
+ for (i = 0; i < src_bytes; i++)
+ v |= ((u32)src[i]) << ((3 - i) * 8);
+ return v;
+}
+
+static void intel_dp_unpack_aux(u32 src, u8 *dst, int dst_bytes)
+{
+ int i;
+
+ if (dst_bytes > 4)
+ dst_bytes = 4;
+ for (i = 0; i < dst_bytes; i++)
+ dst[i] = src >> ((3 - i) * 8);
+}
+
+static u32
+intel_dp_aux_wait_done(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ i915_reg_t ch_ctl = intel_dp->aux_ch_ctl_reg(intel_dp);
+ const unsigned int timeout_ms = 10;
+ u32 status;
+ bool done;
+
+#define C (((status = intel_uncore_read_notrace(&i915->uncore, ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0)
+ done = wait_event_timeout(i915->gmbus_wait_queue, C,
+ msecs_to_jiffies_timeout(timeout_ms));
+
+ /* just trace the final value */
+ trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
+
+ if (!done)
+ drm_err(&i915->drm,
+ "%s: did not complete or timeout within %ums (status 0x%08x)\n",
+ intel_dp->aux.name, timeout_ms, status);
+#undef C
+
+ return status;
+}
+
+static u32 g4x_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ if (index)
+ return 0;
+
+ /*
+ * The clock divider is based off the hrawclk, and would like to run at
+ * 2MHz. So, take the hrawclk value and divide by 2000 and use that
+ */
+ return DIV_ROUND_CLOSEST(RUNTIME_INFO(dev_priv)->rawclk_freq, 2000);
+}
+
+static u32 ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ u32 freq;
+
+ if (index)
+ return 0;
+
+ /*
+ * The clock divider is based off the cdclk or PCH rawclk, and would
+ * like to run at 2MHz. So, take the cdclk or PCH rawclk value and
+ * divide by 2000 and use that
+ */
+ if (dig_port->aux_ch == AUX_CH_A)
+ freq = dev_priv->cdclk.hw.cdclk;
+ else
+ freq = RUNTIME_INFO(dev_priv)->rawclk_freq;
+ return DIV_ROUND_CLOSEST(freq, 2000);
+}
+
+static u32 hsw_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+
+ if (dig_port->aux_ch != AUX_CH_A && HAS_PCH_LPT_H(dev_priv)) {
+ /* Workaround for non-ULT HSW */
+ switch (index) {
+ case 0: return 63;
+ case 1: return 72;
+ default: return 0;
+ }
+ }
+
+ return ilk_get_aux_clock_divider(intel_dp, index);
+}
+
+static u32 skl_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
+{
+ /*
+ * SKL doesn't need us to program the AUX clock divider (Hardware will
+ * derive the clock from CDCLK automatically). We still implement the
+ * get_aux_clock_divider vfunc to plug-in into the existing code.
+ */
+ return index ? 0 : 1;
+}
+
+static u32 g4x_get_aux_send_ctl(struct intel_dp *intel_dp,
+ int send_bytes,
+ u32 aux_clock_divider)
+{
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct drm_i915_private *dev_priv =
+ to_i915(dig_port->base.base.dev);
+ u32 precharge, timeout;
+
+ if (IS_GEN(dev_priv, 6))
+ precharge = 3;
+ else
+ precharge = 5;
+
+ if (IS_BROADWELL(dev_priv))
+ timeout = DP_AUX_CH_CTL_TIME_OUT_600us;
+ else
+ timeout = DP_AUX_CH_CTL_TIME_OUT_400us;
+
+ return DP_AUX_CH_CTL_SEND_BUSY |
+ DP_AUX_CH_CTL_DONE |
+ DP_AUX_CH_CTL_INTERRUPT |
+ DP_AUX_CH_CTL_TIME_OUT_ERROR |
+ timeout |
+ DP_AUX_CH_CTL_RECEIVE_ERROR |
+ (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
+ (precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
+ (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT);
+}
+
+static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
+ int send_bytes,
+ u32 unused)
+{
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct drm_i915_private *i915 =
+ to_i915(dig_port->base.base.dev);
+ enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+ u32 ret;
+
+ ret = DP_AUX_CH_CTL_SEND_BUSY |
+ DP_AUX_CH_CTL_DONE |
+ DP_AUX_CH_CTL_INTERRUPT |
+ DP_AUX_CH_CTL_TIME_OUT_ERROR |
+ DP_AUX_CH_CTL_TIME_OUT_MAX |
+ DP_AUX_CH_CTL_RECEIVE_ERROR |
+ (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
+ DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) |
+ DP_AUX_CH_CTL_SYNC_PULSE_SKL(32);
+
+ if (intel_phy_is_tc(i915, phy) &&
+ dig_port->tc_mode == TC_PORT_TBT_ALT)
+ ret |= DP_AUX_CH_CTL_TBT_IO;
+
+ return ret;
+}
+
+static int
+intel_dp_aux_xfer(struct intel_dp *intel_dp,
+ const u8 *send, int send_bytes,
+ u8 *recv, int recv_size,
+ u32 aux_send_ctl_flags)
+{
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct drm_i915_private *i915 =
+ to_i915(dig_port->base.base.dev);
+ struct intel_uncore *uncore = &i915->uncore;
+ enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+ bool is_tc_port = intel_phy_is_tc(i915, phy);
+ i915_reg_t ch_ctl, ch_data[5];
+ u32 aux_clock_divider;
+ enum intel_display_power_domain aux_domain;
+ intel_wakeref_t aux_wakeref;
+ intel_wakeref_t pps_wakeref;
+ int i, ret, recv_bytes;
+ int try, clock = 0;
+ u32 status;
+ bool vdd;
+
+ ch_ctl = intel_dp->aux_ch_ctl_reg(intel_dp);
+ for (i = 0; i < ARRAY_SIZE(ch_data); i++)
+ ch_data[i] = intel_dp->aux_ch_data_reg(intel_dp, i);
+
+ if (is_tc_port)
+ intel_tc_port_lock(dig_port);
+
+ aux_domain = intel_aux_power_domain(dig_port);
+
+ aux_wakeref = intel_display_power_get(i915, aux_domain);
+ pps_wakeref = intel_pps_lock(intel_dp);
+
+ /*
+ * We will be called with VDD already enabled for dpcd/edid/oui reads.
+ * In such cases we want to leave VDD enabled and it's up to upper layers
+ * to turn it off. But for eg. i2c-dev access we need to turn it on/off
+ * ourselves.
+ */
+ vdd = intel_pps_vdd_on_unlocked(intel_dp);
+
+ /*
+ * dp aux is extremely sensitive to irq latency, hence request the
+ * lowest possible wakeup latency and so prevent the cpu from going into
+ * deep sleep states.
+ */
+ cpu_latency_qos_update_request(&intel_dp->pm_qos, 0);
+
+ intel_pps_check_power_unlocked(intel_dp);
+
+ /* Try to wait for any previous AUX channel activity */
+ for (try = 0; try < 3; try++) {
+ status = intel_uncore_read_notrace(uncore, ch_ctl);
+ if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)
+ break;
+ msleep(1);
+ }
+ /* just trace the final value */
+ trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
+
+ if (try == 3) {
+ const u32 status = intel_uncore_read(uncore, ch_ctl);
+
+ if (status != intel_dp->aux_busy_last_status) {
+ drm_WARN(&i915->drm, 1,
+ "%s: not started (status 0x%08x)\n",
+ intel_dp->aux.name, status);
+ intel_dp->aux_busy_last_status = status;
+ }
+
+ ret = -EBUSY;
+ goto out;
+ }
+
+ /* Only 5 data registers! */
+ if (drm_WARN_ON(&i915->drm, send_bytes > 20 || recv_size > 20)) {
+ ret = -E2BIG;
+ goto out;
+ }
+
+ while ((aux_clock_divider = intel_dp->get_aux_clock_divider(intel_dp, clock++))) {
+ u32 send_ctl = intel_dp->get_aux_send_ctl(intel_dp,
+ send_bytes,
+ aux_clock_divider);
+
+ send_ctl |= aux_send_ctl_flags;
+
+ /* Must try at least 3 times according to DP spec */
+ for (try = 0; try < 5; try++) {
+ /* Load the send data into the aux channel data registers */
+ for (i = 0; i < send_bytes; i += 4)
+ intel_uncore_write(uncore,
+ ch_data[i >> 2],
+ intel_dp_pack_aux(send + i,
+ send_bytes - i));
+
+ /* Send the command and wait for it to complete */
+ intel_uncore_write(uncore, ch_ctl, send_ctl);
+
+ status = intel_dp_aux_wait_done(intel_dp);
+
+ /* Clear done status and any errors */
+ intel_uncore_write(uncore,
+ ch_ctl,
+ status |
+ DP_AUX_CH_CTL_DONE |
+ DP_AUX_CH_CTL_TIME_OUT_ERROR |
+ DP_AUX_CH_CTL_RECEIVE_ERROR);
+
+ /*
+ * DP CTS 1.2 Core Rev 1.1, 4.2.1.1 & 4.2.1.2
+ * 400us delay required for errors and timeouts
+ * Timeout errors from the HW already meet this
+ * requirement so skip to next iteration
+ */
+ if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR)
+ continue;
+
+ if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) {
+ usleep_range(400, 500);
+ continue;
+ }
+ if (status & DP_AUX_CH_CTL_DONE)
+ goto done;
+ }
+ }
+
+ if ((status & DP_AUX_CH_CTL_DONE) == 0) {
+ drm_err(&i915->drm, "%s: not done (status 0x%08x)\n",
+ intel_dp->aux.name, status);
+ ret = -EBUSY;
+ goto out;
+ }
+
+done:
+ /*
+ * Check for timeout or receive error. Timeouts occur when the sink is
+ * not connected.
+ */
+ if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) {
+ drm_err(&i915->drm, "%s: receive error (status 0x%08x)\n",
+ intel_dp->aux.name, status);
+ ret = -EIO;
+ goto out;
+ }
+
+ /*
+ * Timeouts occur when the device isn't connected, so they're "normal"
+ * -- don't fill the kernel log with these
+ */
+ if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR) {
+ drm_dbg_kms(&i915->drm, "%s: timeout (status 0x%08x)\n",
+ intel_dp->aux.name, status);
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ /* Unload any bytes sent back from the other side */
+ recv_bytes = ((status & DP_AUX_CH_CTL_MESSAGE_SIZE_MASK) >>
+ DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT);
+
+ /*
+ * By BSpec: "Message sizes of 0 or >20 are not allowed."
+ * We have no idea of what happened so we return -EBUSY so
+ * drm layer takes care for the necessary retries.
+ */
+ if (recv_bytes == 0 || recv_bytes > 20) {
+ drm_dbg_kms(&i915->drm,
+ "%s: Forbidden recv_bytes = %d on aux transaction\n",
+ intel_dp->aux.name, recv_bytes);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (recv_bytes > recv_size)
+ recv_bytes = recv_size;
+
+ for (i = 0; i < recv_bytes; i += 4)
+ intel_dp_unpack_aux(intel_uncore_read(uncore, ch_data[i >> 2]),
+ recv + i, recv_bytes - i);
+
+ ret = recv_bytes;
+out:
+ cpu_latency_qos_update_request(&intel_dp->pm_qos, PM_QOS_DEFAULT_VALUE);
+
+ if (vdd)
+ intel_pps_vdd_off_unlocked(intel_dp, false);
+
+ intel_pps_unlock(intel_dp, pps_wakeref);
+ intel_display_power_put_async(i915, aux_domain, aux_wakeref);
+
+ if (is_tc_port)
+ intel_tc_port_unlock(dig_port);
+
+ return ret;
+}
+
+#define BARE_ADDRESS_SIZE 3
+#define HEADER_SIZE (BARE_ADDRESS_SIZE + 1)
+
+static void
+intel_dp_aux_header(u8 txbuf[HEADER_SIZE],
+ const struct drm_dp_aux_msg *msg)
+{
+ txbuf[0] = (msg->request << 4) | ((msg->address >> 16) & 0xf);
+ txbuf[1] = (msg->address >> 8) & 0xff;
+ txbuf[2] = msg->address & 0xff;
+ txbuf[3] = msg->size - 1;
+}
+
+static u32 intel_dp_aux_xfer_flags(const struct drm_dp_aux_msg *msg)
+{
+ /*
+ * If we're trying to send the HDCP Aksv, we need to set a the Aksv
+ * select bit to inform the hardware to send the Aksv after our header
+ * since we can't access that data from software.
+ */
+ if ((msg->request & ~DP_AUX_I2C_MOT) == DP_AUX_NATIVE_WRITE &&
+ msg->address == DP_AUX_HDCP_AKSV)
+ return DP_AUX_CH_CTL_AUX_AKSV_SELECT;
+
+ return 0;
+}
+
+static ssize_t
+intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
+{
+ struct intel_dp *intel_dp = container_of(aux, struct intel_dp, aux);
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ u8 txbuf[20], rxbuf[20];
+ size_t txsize, rxsize;
+ u32 flags = intel_dp_aux_xfer_flags(msg);
+ int ret;
+
+ intel_dp_aux_header(txbuf, msg);
+
+ switch (msg->request & ~DP_AUX_I2C_MOT) {
+ case DP_AUX_NATIVE_WRITE:
+ case DP_AUX_I2C_WRITE:
+ case DP_AUX_I2C_WRITE_STATUS_UPDATE:
+ txsize = msg->size ? HEADER_SIZE + msg->size : BARE_ADDRESS_SIZE;
+ rxsize = 2; /* 0 or 1 data bytes */
+
+ if (drm_WARN_ON(&i915->drm, txsize > 20))
+ return -E2BIG;
+
+ drm_WARN_ON(&i915->drm, !msg->buffer != !msg->size);
+
+ if (msg->buffer)
+ memcpy(txbuf + HEADER_SIZE, msg->buffer, msg->size);
+
+ ret = intel_dp_aux_xfer(intel_dp, txbuf, txsize,
+ rxbuf, rxsize, flags);
+ if (ret > 0) {
+ msg->reply = rxbuf[0] >> 4;
+
+ if (ret > 1) {
+ /* Number of bytes written in a short write. */
+ ret = clamp_t(int, rxbuf[1], 0, msg->size);
+ } else {
+ /* Return payload size. */
+ ret = msg->size;
+ }
+ }
+ break;
+
+ case DP_AUX_NATIVE_READ:
+ case DP_AUX_I2C_READ:
+ txsize = msg->size ? HEADER_SIZE : BARE_ADDRESS_SIZE;
+ rxsize = msg->size + 1;
+
+ if (drm_WARN_ON(&i915->drm, rxsize > 20))
+ return -E2BIG;
+
+ ret = intel_dp_aux_xfer(intel_dp, txbuf, txsize,
+ rxbuf, rxsize, flags);
+ if (ret > 0) {
+ msg->reply = rxbuf[0] >> 4;
+ /*
+ * Assume happy day, and copy the data. The caller is
+ * expected to check msg->reply before touching it.
+ *
+ * Return payload size.
+ */
+ ret--;
+ memcpy(msg->buffer, rxbuf + 1, ret);
+ }
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static i915_reg_t g4x_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_D:
+ return DP_AUX_CH_CTL(aux_ch);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_CTL(AUX_CH_B);
+ }
+}
+
+static i915_reg_t g4x_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_D:
+ return DP_AUX_CH_DATA(aux_ch, index);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_DATA(AUX_CH_B, index);
+ }
+}
+
+static i915_reg_t ilk_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ return DP_AUX_CH_CTL(aux_ch);
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_D:
+ return PCH_DP_AUX_CH_CTL(aux_ch);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_CTL(AUX_CH_A);
+ }
+}
+
+static i915_reg_t ilk_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ return DP_AUX_CH_DATA(aux_ch, index);
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_D:
+ return PCH_DP_AUX_CH_DATA(aux_ch, index);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_DATA(AUX_CH_A, index);
+ }
+}
+
+static i915_reg_t skl_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_D:
+ case AUX_CH_E:
+ case AUX_CH_F:
+ return DP_AUX_CH_CTL(aux_ch);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_CTL(AUX_CH_A);
+ }
+}
+
+static i915_reg_t skl_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_D:
+ case AUX_CH_E:
+ case AUX_CH_F:
+ return DP_AUX_CH_DATA(aux_ch, index);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_DATA(AUX_CH_A, index);
+ }
+}
+
+static i915_reg_t tgl_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_USBC1:
+ case AUX_CH_USBC2:
+ case AUX_CH_USBC3:
+ case AUX_CH_USBC4:
+ case AUX_CH_USBC5:
+ case AUX_CH_USBC6:
+ return DP_AUX_CH_CTL(aux_ch);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_CTL(AUX_CH_A);
+ }
+}
+
+static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ case AUX_CH_B:
+ case AUX_CH_C:
+ case AUX_CH_USBC1:
+ case AUX_CH_USBC2:
+ case AUX_CH_USBC3:
+ case AUX_CH_USBC4:
+ case AUX_CH_USBC5:
+ case AUX_CH_USBC6:
+ return DP_AUX_CH_DATA(aux_ch, index);
+ default:
+ MISSING_CASE(aux_ch);
+ return DP_AUX_CH_DATA(AUX_CH_A, index);
+ }
+}
+
+void intel_dp_aux_fini(struct intel_dp *intel_dp)
+{
+ if (cpu_latency_qos_request_active(&intel_dp->pm_qos))
+ cpu_latency_qos_remove_request(&intel_dp->pm_qos);
+
+ kfree(intel_dp->aux.name);
+}
+
+void intel_dp_aux_init(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct intel_encoder *encoder = &dig_port->base;
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ if (INTEL_GEN(dev_priv) >= 12) {
+ intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
+ intel_dp->aux_ch_data_reg = tgl_aux_data_reg;
+ } else if (INTEL_GEN(dev_priv) >= 9) {
+ intel_dp->aux_ch_ctl_reg = skl_aux_ctl_reg;
+ intel_dp->aux_ch_data_reg = skl_aux_data_reg;
+ } else if (HAS_PCH_SPLIT(dev_priv)) {
+ intel_dp->aux_ch_ctl_reg = ilk_aux_ctl_reg;
+ intel_dp->aux_ch_data_reg = ilk_aux_data_reg;
+ } else {
+ intel_dp->aux_ch_ctl_reg = g4x_aux_ctl_reg;
+ intel_dp->aux_ch_data_reg = g4x_aux_data_reg;
+ }
+
+ if (INTEL_GEN(dev_priv) >= 9)
+ intel_dp->get_aux_clock_divider = skl_get_aux_clock_divider;
+ else if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
+ intel_dp->get_aux_clock_divider = hsw_get_aux_clock_divider;
+ else if (HAS_PCH_SPLIT(dev_priv))
+ intel_dp->get_aux_clock_divider = ilk_get_aux_clock_divider;
+ else
+ intel_dp->get_aux_clock_divider = g4x_get_aux_clock_divider;
+
+ if (INTEL_GEN(dev_priv) >= 9)
+ intel_dp->get_aux_send_ctl = skl_get_aux_send_ctl;
+ else
+ intel_dp->get_aux_send_ctl = g4x_get_aux_send_ctl;
+
+ drm_dp_aux_init(&intel_dp->aux);
+
+ /* Failure to allocate our preferred name is not critical */
+ if (INTEL_GEN(dev_priv) >= 12 && aux_ch >= AUX_CH_USBC1)
+ intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX USBC%c/%s",
+ aux_ch - AUX_CH_USBC1 + '1',
+ encoder->base.name);
+ else
+ intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %c/%s",
+ aux_ch_name(aux_ch),
+ encoder->base.name);
+
+ intel_dp->aux.transfer = intel_dp_aux_transfer;
+ cpu_latency_qos_add_request(&intel_dp->pm_qos, PM_QOS_DEFAULT_VALUE);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.h b/drivers/gpu/drm/i915/display/intel_dp_aux.h
new file mode 100644
index 000000000000..4afbe76217b9
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020-2021 Intel Corporation
+ */
+
+#ifndef __INTEL_DP_AUX_H__
+#define __INTEL_DP_AUX_H__
+
+#include <linux/types.h>
+
+struct intel_dp;
+
+u32 intel_dp_pack_aux(const u8 *src, int src_bytes);
+
+void intel_dp_aux_fini(struct intel_dp *intel_dp);
+void intel_dp_aux_init(struct intel_dp *intel_dp);
+
+#endif /* __INTEL_DP_AUX_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
index 9775f33d1aac..651884390137 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -22,8 +22,26 @@
*
*/
+/*
+ * Laptops with Intel GPUs which have panels that support controlling the
+ * backlight through DP AUX can actually use two different interfaces: Intel's
+ * proprietary DP AUX backlight interface, and the standard VESA backlight
+ * interface. Unfortunately, at the time of writing this a lot of laptops will
+ * advertise support for the standard VESA backlight interface when they
+ * don't properly support it. However, on these systems the Intel backlight
+ * interface generally does work properly. Additionally, these systems will
+ * usually just indicate that they use PWM backlight controls in their VBIOS
+ * for some reason.
+ */
+
#include "intel_display_types.h"
#include "intel_dp_aux_backlight.h"
+#include "intel_panel.h"
+
+/* TODO:
+ * Implement HDR, right now we just implement the bare minimum to bring us back into SDR mode so we
+ * can make people's backlights work in the mean time
+ */
/*
* DP AUX registers for Intel's proprietary HDR backlight interface. We define
@@ -77,6 +95,178 @@
#define INTEL_EDP_BRIGHTNESS_OPTIMIZATION_1 0x359
+/* Intel EDP backlight callbacks */
+static bool
+intel_dp_aux_supports_hdr_backlight(struct intel_connector *connector)
+{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+ struct drm_dp_aux *aux = &intel_dp->aux;
+ struct intel_panel *panel = &connector->panel;
+ int ret;
+ u8 tcon_cap[4];
+
+ ret = drm_dp_dpcd_read(aux, INTEL_EDP_HDR_TCON_CAP0, tcon_cap, sizeof(tcon_cap));
+ if (ret < 0)
+ return false;
+
+ if (!(tcon_cap[1] & INTEL_EDP_HDR_TCON_BRIGHTNESS_NITS_CAP))
+ return false;
+
+ if (tcon_cap[0] >= 1) {
+ drm_dbg_kms(&i915->drm, "Detected Intel HDR backlight interface version %d\n",
+ tcon_cap[0]);
+ } else {
+ drm_dbg_kms(&i915->drm, "Detected unsupported HDR backlight interface version %d\n",
+ tcon_cap[0]);
+ return false;
+ }
+
+ panel->backlight.edp.intel.sdr_uses_aux =
+ tcon_cap[2] & INTEL_EDP_SDR_TCON_BRIGHTNESS_AUX_CAP;
+
+ return true;
+}
+
+static u32
+intel_dp_aux_hdr_get_backlight(struct intel_connector *connector, enum pipe pipe)
+{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_panel *panel = &connector->panel;
+ struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+ u8 tmp;
+ u8 buf[2] = { 0 };
+
+ if (drm_dp_dpcd_readb(&intel_dp->aux, INTEL_EDP_HDR_GETSET_CTRL_PARAMS, &tmp) < 0) {
+ drm_err(&i915->drm, "Failed to read current backlight mode from DPCD\n");
+ return 0;
+ }
+
+ if (!(tmp & INTEL_EDP_HDR_TCON_BRIGHTNESS_AUX_ENABLE)) {
+ if (!panel->backlight.edp.intel.sdr_uses_aux) {
+ u32 pwm_level = panel->backlight.pwm_funcs->get(connector, pipe);
+
+ return intel_panel_backlight_level_from_pwm(connector, pwm_level);
+ }
+
+ /* Assume 100% brightness if backlight controls aren't enabled yet */
+ return panel->backlight.max;
+ }
+
+ if (drm_dp_dpcd_read(&intel_dp->aux, INTEL_EDP_BRIGHTNESS_NITS_LSB, buf, sizeof(buf)) < 0) {
+ drm_err(&i915->drm, "Failed to read brightness from DPCD\n");
+ return 0;
+ }
+
+ return (buf[1] << 8 | buf[0]);
+}
+
+static void
+intel_dp_aux_hdr_set_aux_backlight(const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct drm_device *dev = connector->base.dev;
+ struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+ u8 buf[4] = { 0 };
+
+ buf[0] = level & 0xFF;
+ buf[1] = (level & 0xFF00) >> 8;
+
+ if (drm_dp_dpcd_write(&intel_dp->aux, INTEL_EDP_BRIGHTNESS_NITS_LSB, buf, 4) < 0)
+ drm_err(dev, "Failed to write brightness level to DPCD\n");
+}
+
+static void
+intel_dp_aux_hdr_set_backlight(const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct intel_panel *panel = &connector->panel;
+
+ if (panel->backlight.edp.intel.sdr_uses_aux) {
+ intel_dp_aux_hdr_set_aux_backlight(conn_state, level);
+ } else {
+ const u32 pwm_level = intel_panel_backlight_level_to_pwm(connector, level);
+
+ intel_panel_set_pwm_level(conn_state, pwm_level);
+ }
+}
+
+static void
+intel_dp_aux_hdr_enable_backlight(const struct intel_crtc_state *crtc_state,
+ const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct intel_panel *panel = &connector->panel;
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+ int ret;
+ u8 old_ctrl, ctrl;
+
+ ret = drm_dp_dpcd_readb(&intel_dp->aux, INTEL_EDP_HDR_GETSET_CTRL_PARAMS, &old_ctrl);
+ if (ret < 0) {
+ drm_err(&i915->drm, "Failed to read current backlight control mode: %d\n", ret);
+ return;
+ }
+
+ ctrl = old_ctrl;
+ if (panel->backlight.edp.intel.sdr_uses_aux) {
+ ctrl |= INTEL_EDP_HDR_TCON_BRIGHTNESS_AUX_ENABLE;
+ intel_dp_aux_hdr_set_aux_backlight(conn_state, level);
+ } else {
+ u32 pwm_level = intel_panel_backlight_level_to_pwm(connector, level);
+
+ panel->backlight.pwm_funcs->enable(crtc_state, conn_state, pwm_level);
+
+ ctrl &= ~INTEL_EDP_HDR_TCON_BRIGHTNESS_AUX_ENABLE;
+ }
+
+ if (ctrl != old_ctrl)
+ if (drm_dp_dpcd_writeb(&intel_dp->aux, INTEL_EDP_HDR_GETSET_CTRL_PARAMS, ctrl) < 0)
+ drm_err(&i915->drm, "Failed to configure DPCD brightness controls\n");
+}
+
+static void
+intel_dp_aux_hdr_disable_backlight(const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct intel_panel *panel = &connector->panel;
+
+ /* Nothing to do for AUX based backlight controls */
+ if (panel->backlight.edp.intel.sdr_uses_aux)
+ return;
+
+ /* Note we want the actual pwm_level to be 0, regardless of pwm_min */
+ panel->backlight.pwm_funcs->disable(conn_state, intel_panel_invert_pwm_level(connector, 0));
+}
+
+static int
+intel_dp_aux_hdr_setup_backlight(struct intel_connector *connector, enum pipe pipe)
+{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_panel *panel = &connector->panel;
+ int ret;
+
+ if (panel->backlight.edp.intel.sdr_uses_aux) {
+ drm_dbg_kms(&i915->drm, "SDR backlight is controlled through DPCD\n");
+ } else {
+ drm_dbg_kms(&i915->drm, "SDR backlight is controlled through PWM\n");
+
+ ret = panel->backlight.pwm_funcs->setup(connector, pipe);
+ if (ret < 0) {
+ drm_err(&i915->drm,
+ "Failed to setup SDR backlight controls through PWM: %d\n", ret);
+ return ret;
+ }
+ }
+
+ panel->backlight.max = 512;
+ panel->backlight.min = 0;
+ panel->backlight.level = intel_dp_aux_hdr_get_backlight(connector, pipe);
+ panel->backlight.enabled = panel->backlight.level != 0;
+
+ return 0;
+}
+
/* VESA backlight callbacks */
static void set_vesa_backlight_enable(struct intel_dp *intel_dp, bool enable)
{
@@ -128,7 +318,7 @@ static bool intel_dp_aux_vesa_backlight_dpcd_mode(struct intel_connector *connec
* Read the current backlight value from DPCD register(s) based
* on if 8-bit(MSB) or 16-bit(MSB and LSB) values are supported
*/
-static u32 intel_dp_aux_vesa_get_backlight(struct intel_connector *connector)
+static u32 intel_dp_aux_vesa_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct intel_dp *intel_dp = intel_attached_dp(connector);
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
@@ -195,7 +385,7 @@ static bool intel_dp_aux_vesa_set_pwm_freq(struct intel_connector *connector)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_dp *intel_dp = intel_attached_dp(connector);
- const u8 pn = connector->panel.backlight.pwmgen_bit_count;
+ const u8 pn = connector->panel.backlight.edp.vesa.pwmgen_bit_count;
int freq, fxp, f, fxp_actual, fxp_min, fxp_max;
freq = dev_priv->vbt.backlight.pwm_freq_hz;
@@ -236,6 +426,7 @@ intel_dp_aux_vesa_enable_backlight(const struct intel_crtc_state *crtc_state,
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
struct intel_panel *panel = &connector->panel;
u8 dpcd_buf, new_dpcd_buf, edp_backlight_mode;
+ u8 pwmgen_bit_count = panel->backlight.edp.vesa.pwmgen_bit_count;
if (drm_dp_dpcd_readb(&intel_dp->aux,
DP_EDP_BACKLIGHT_MODE_SET_REGISTER, &dpcd_buf) != 1) {
@@ -256,7 +447,7 @@ intel_dp_aux_vesa_enable_backlight(const struct intel_crtc_state *crtc_state,
if (drm_dp_dpcd_writeb(&intel_dp->aux,
DP_EDP_PWMGEN_BIT_COUNT,
- panel->backlight.pwmgen_bit_count) < 0)
+ pwmgen_bit_count) < 0)
drm_dbg_kms(&i915->drm,
"Failed to write aux pwmgen bit count\n");
@@ -364,7 +555,7 @@ static u32 intel_dp_aux_vesa_calc_max_backlight(struct intel_connector *connecto
"Failed to write aux pwmgen bit count\n");
return max_backlight;
}
- panel->backlight.pwmgen_bit_count = pn;
+ panel->backlight.edp.vesa.pwmgen_bit_count = pn;
max_backlight = (1 << pn) - 1;
@@ -381,7 +572,7 @@ static int intel_dp_aux_vesa_setup_backlight(struct intel_connector *connector,
return -ENODEV;
panel->backlight.min = 0;
- panel->backlight.level = intel_dp_aux_vesa_get_backlight(connector);
+ panel->backlight.level = intel_dp_aux_vesa_get_backlight(connector, pipe);
panel->backlight.enabled = intel_dp_aux_vesa_backlight_dpcd_mode(connector) &&
panel->backlight.level != 0;
@@ -395,9 +586,14 @@ intel_dp_aux_supports_vesa_backlight(struct intel_connector *connector)
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
/* Check the eDP Display control capabilities registers to determine if
- * the panel can support backlight control over the aux channel
+ * the panel can support backlight control over the aux channel.
+ *
+ * TODO: We currently only support AUX only backlight configurations, not backlights which
+ * require a mix of PWM and AUX controls to work. In the mean time, these machines typically
+ * work just fine using normal PWM controls anyway.
*/
if (intel_dp->edp_dpcd[1] & DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP &&
+ (intel_dp->edp_dpcd[1] & DP_EDP_BACKLIGHT_AUX_ENABLE_CAP) &&
(intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP)) {
drm_dbg_kms(&i915->drm, "AUX Backlight Control Supported!\n");
return true;
@@ -405,6 +601,14 @@ intel_dp_aux_supports_vesa_backlight(struct intel_connector *connector)
return false;
}
+static const struct intel_panel_bl_funcs intel_dp_hdr_bl_funcs = {
+ .setup = intel_dp_aux_hdr_setup_backlight,
+ .enable = intel_dp_aux_hdr_enable_backlight,
+ .disable = intel_dp_aux_hdr_disable_backlight,
+ .set = intel_dp_aux_hdr_set_backlight,
+ .get = intel_dp_aux_hdr_get_backlight,
+};
+
static const struct intel_panel_bl_funcs intel_dp_vesa_bl_funcs = {
.setup = intel_dp_aux_vesa_setup_backlight,
.enable = intel_dp_aux_vesa_enable_backlight,
@@ -413,36 +617,73 @@ static const struct intel_panel_bl_funcs intel_dp_vesa_bl_funcs = {
.get = intel_dp_aux_vesa_get_backlight,
};
-int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector)
+enum intel_dp_aux_backlight_modparam {
+ INTEL_DP_AUX_BACKLIGHT_AUTO = -1,
+ INTEL_DP_AUX_BACKLIGHT_OFF = 0,
+ INTEL_DP_AUX_BACKLIGHT_ON = 1,
+ INTEL_DP_AUX_BACKLIGHT_FORCE_VESA = 2,
+ INTEL_DP_AUX_BACKLIGHT_FORCE_INTEL = 3,
+};
+
+int intel_dp_aux_init_backlight_funcs(struct intel_connector *connector)
{
- struct intel_panel *panel = &intel_connector->panel;
- struct intel_dp *intel_dp = enc_to_intel_dp(intel_connector->encoder);
+ struct drm_device *dev = connector->base.dev;
+ struct intel_panel *panel = &connector->panel;
+ struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ bool try_intel_interface = false, try_vesa_interface = false;
- if (i915->params.enable_dpcd_backlight == 0 ||
- !intel_dp_aux_supports_vesa_backlight(intel_connector))
+ /* Check the VBT and user's module parameters to figure out which
+ * interfaces to probe
+ */
+ switch (i915->params.enable_dpcd_backlight) {
+ case INTEL_DP_AUX_BACKLIGHT_OFF:
return -ENODEV;
+ case INTEL_DP_AUX_BACKLIGHT_AUTO:
+ switch (i915->vbt.backlight.type) {
+ case INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE:
+ try_vesa_interface = true;
+ break;
+ case INTEL_BACKLIGHT_DISPLAY_DDI:
+ try_intel_interface = true;
+ try_vesa_interface = true;
+ break;
+ default:
+ return -ENODEV;
+ }
+ break;
+ case INTEL_DP_AUX_BACKLIGHT_ON:
+ if (i915->vbt.backlight.type != INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE)
+ try_intel_interface = true;
+
+ try_vesa_interface = true;
+ break;
+ case INTEL_DP_AUX_BACKLIGHT_FORCE_VESA:
+ try_vesa_interface = true;
+ break;
+ case INTEL_DP_AUX_BACKLIGHT_FORCE_INTEL:
+ try_intel_interface = true;
+ break;
+ }
/*
- * There are a lot of machines that don't advertise the backlight
- * control interface to use properly in their VBIOS, :\
+ * A lot of eDP panels in the wild will report supporting both the
+ * Intel proprietary backlight control interface, and the VESA
+ * backlight control interface. Many of these panels are liars though,
+ * and will only work with the Intel interface. So, always probe for
+ * that first.
*/
- if (i915->vbt.backlight.type !=
- INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE &&
- i915->params.enable_dpcd_backlight != 1 &&
- !drm_dp_has_quirk(&intel_dp->desc, intel_dp->edid_quirks,
- DP_QUIRK_FORCE_DPCD_BACKLIGHT)) {
- drm_info(&i915->drm,
- "Panel advertises DPCD backlight support, but "
- "VBT disagrees. If your backlight controls "
- "don't work try booting with "
- "i915.enable_dpcd_backlight=1. If your machine "
- "needs this, please file a _new_ bug report on "
- "drm/i915, see " FDO_BUG_URL " for details.\n");
- return -ENODEV;
+ if (try_intel_interface && intel_dp_aux_supports_hdr_backlight(connector)) {
+ drm_dbg_kms(dev, "Using Intel proprietary eDP backlight controls\n");
+ panel->backlight.funcs = &intel_dp_hdr_bl_funcs;
+ return 0;
}
- panel->backlight.funcs = &intel_dp_vesa_bl_funcs;
+ if (try_vesa_interface && intel_dp_aux_supports_vesa_backlight(connector)) {
+ drm_dbg_kms(dev, "Using VESA eDP backlight controls\n");
+ panel->backlight.funcs = &intel_dp_vesa_bl_funcs;
+ return 0;
+ }
- return 0;
+ return -ENODEV;
}
diff --git a/drivers/gpu/drm/i915/display/intel_dp_hdcp.c b/drivers/gpu/drm/i915/display/intel_dp_hdcp.c
index 03424d20e9f7..f372e25edab4 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_hdcp.c
@@ -16,6 +16,30 @@
#include "intel_dp.h"
#include "intel_hdcp.h"
+static unsigned int transcoder_to_stream_enc_status(enum transcoder cpu_transcoder)
+{
+ u32 stream_enc_mask;
+
+ switch (cpu_transcoder) {
+ case TRANSCODER_A:
+ stream_enc_mask = HDCP_STATUS_STREAM_A_ENC;
+ break;
+ case TRANSCODER_B:
+ stream_enc_mask = HDCP_STATUS_STREAM_B_ENC;
+ break;
+ case TRANSCODER_C:
+ stream_enc_mask = HDCP_STATUS_STREAM_C_ENC;
+ break;
+ case TRANSCODER_D:
+ stream_enc_mask = HDCP_STATUS_STREAM_D_ENC;
+ break;
+ default:
+ stream_enc_mask = 0;
+ }
+
+ return stream_enc_mask;
+}
+
static void intel_dp_hdcp_wait_for_cp_irq(struct intel_hdcp *hdcp, int timeout)
{
long ret;
@@ -561,7 +585,8 @@ int intel_dp_hdcp2_config_stream_type(struct intel_digital_port *dig_port,
}
static
-int intel_dp_hdcp2_check_link(struct intel_digital_port *dig_port)
+int intel_dp_hdcp2_check_link(struct intel_digital_port *dig_port,
+ struct intel_connector *connector)
{
u8 rx_status;
int ret;
@@ -622,48 +647,153 @@ static const struct intel_hdcp_shim intel_dp_hdcp_shim = {
};
static int
-intel_dp_mst_hdcp_toggle_signalling(struct intel_digital_port *dig_port,
- enum transcoder cpu_transcoder,
- bool enable)
+intel_dp_mst_toggle_hdcp_stream_select(struct intel_connector *connector,
+ bool enable)
{
- struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
- if (!enable)
- usleep_range(6, 60); /* Bspec says >= 6us */
-
- ret = intel_ddi_toggle_hdcp_signalling(&dig_port->base,
- cpu_transcoder, enable);
+ ret = intel_ddi_toggle_hdcp_bits(&dig_port->base,
+ hdcp->stream_transcoder, enable,
+ TRANS_DDI_HDCP_SELECT);
if (ret)
- drm_dbg_kms(&i915->drm, "%s HDCP signalling failed (%d)\n",
- enable ? "Enable" : "Disable", ret);
+ drm_err(&i915->drm, "%s HDCP stream select failed (%d)\n",
+ enable ? "Enable" : "Disable", ret);
return ret;
}
-static
-bool intel_dp_mst_hdcp_check_link(struct intel_digital_port *dig_port,
- struct intel_connector *connector)
+static int
+intel_dp_mst_hdcp_stream_encryption(struct intel_connector *connector,
+ bool enable)
+{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_hdcp *hdcp = &connector->hdcp;
+ enum port port = dig_port->base.port;
+ enum transcoder cpu_transcoder = hdcp->stream_transcoder;
+ u32 stream_enc_status;
+ int ret;
+
+ ret = intel_dp_mst_toggle_hdcp_stream_select(connector, enable);
+ if (ret)
+ return ret;
+
+ stream_enc_status = transcoder_to_stream_enc_status(cpu_transcoder);
+ if (!stream_enc_status)
+ return -EINVAL;
+
+ /* Wait for encryption confirmation */
+ if (intel_de_wait_for_register(i915,
+ HDCP_STATUS(i915, cpu_transcoder, port),
+ stream_enc_status,
+ enable ? stream_enc_status : 0,
+ HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+ drm_err(&i915->drm, "Timed out waiting for transcoder: %s stream encryption %s\n",
+ transcoder_name(cpu_transcoder), enable ? "enabled" : "disabled");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static bool intel_dp_mst_get_qses_status(struct intel_digital_port *dig_port,
+ struct intel_connector *connector)
{
struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
- struct intel_dp *intel_dp = &dig_port->dp;
struct drm_dp_query_stream_enc_status_ack_reply reply;
+ struct intel_dp *intel_dp = &dig_port->dp;
int ret;
- if (!intel_dp_hdcp_check_link(dig_port, connector))
- return false;
-
ret = drm_dp_send_query_stream_enc_status(&intel_dp->mst_mgr,
connector->port, &reply);
if (ret) {
drm_dbg_kms(&i915->drm,
- "[CONNECTOR:%d:%s] failed QSES ret=%d\n",
- connector->base.base.id, connector->base.name, ret);
+ "[%s:%d] failed QSES ret=%d\n",
+ connector->base.name, connector->base.base.id, ret);
return false;
}
+ drm_dbg_kms(&i915->drm, "[%s:%d] QSES stream auth: %d stream enc: %d\n",
+ connector->base.name, connector->base.base.id,
+ reply.auth_completed, reply.encryption_enabled);
+
return reply.auth_completed && reply.encryption_enabled;
}
+static
+bool intel_dp_mst_hdcp_check_link(struct intel_digital_port *dig_port,
+ struct intel_connector *connector)
+{
+ if (!intel_dp_hdcp_check_link(dig_port, connector))
+ return false;
+
+ return intel_dp_mst_get_qses_status(dig_port, connector);
+}
+
+static int
+intel_dp_mst_hdcp2_stream_encryption(struct intel_connector *connector,
+ bool enable)
+{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
+ struct intel_hdcp *hdcp = &connector->hdcp;
+ enum transcoder cpu_transcoder = hdcp->stream_transcoder;
+ enum pipe pipe = (enum pipe)cpu_transcoder;
+ enum port port = dig_port->base.port;
+ int ret;
+
+ drm_WARN_ON(&i915->drm, enable &&
+ !!(intel_de_read(i915, HDCP2_AUTH_STREAM(i915, cpu_transcoder, port))
+ & AUTH_STREAM_TYPE) != data->streams[0].stream_type);
+
+ ret = intel_dp_mst_toggle_hdcp_stream_select(connector, enable);
+ if (ret)
+ return ret;
+
+ /* Wait for encryption confirmation */
+ if (intel_de_wait_for_register(i915,
+ HDCP2_STREAM_STATUS(i915, cpu_transcoder, pipe),
+ STREAM_ENCRYPTION_STATUS,
+ enable ? STREAM_ENCRYPTION_STATUS : 0,
+ HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+ drm_err(&i915->drm, "Timed out waiting for transcoder: %s stream encryption %s\n",
+ transcoder_name(cpu_transcoder), enable ? "enabled" : "disabled");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+/*
+ * DP v2.0 I.3.3 ignore the stream signature L' in QSES reply msg reply.
+ * I.3.5 MST source device may use a QSES msg to query downstream status
+ * for a particular stream.
+ */
+static
+int intel_dp_mst_hdcp2_check_link(struct intel_digital_port *dig_port,
+ struct intel_connector *connector)
+{
+ struct intel_hdcp *hdcp = &connector->hdcp;
+ int ret;
+
+ /*
+ * We do need to do the Link Check only for the connector involved with
+ * HDCP port authentication and encryption.
+ * We can re-use the hdcp->is_repeater flag to know that the connector
+ * involved with HDCP port authentication and encryption.
+ */
+ if (hdcp->is_repeater) {
+ ret = intel_dp_hdcp2_check_link(dig_port, connector);
+ if (ret)
+ return ret;
+ }
+
+ return intel_dp_mst_get_qses_status(dig_port, connector) ? 0 : -EINVAL;
+}
+
static const struct intel_hdcp_shim intel_dp_mst_hdcp_shim = {
.write_an_aksv = intel_dp_hdcp_write_an_aksv,
.read_bksv = intel_dp_hdcp_read_bksv,
@@ -673,10 +803,16 @@ static const struct intel_hdcp_shim intel_dp_mst_hdcp_shim = {
.read_ksv_ready = intel_dp_hdcp_read_ksv_ready,
.read_ksv_fifo = intel_dp_hdcp_read_ksv_fifo,
.read_v_prime_part = intel_dp_hdcp_read_v_prime_part,
- .toggle_signalling = intel_dp_mst_hdcp_toggle_signalling,
+ .toggle_signalling = intel_dp_hdcp_toggle_signalling,
+ .stream_encryption = intel_dp_mst_hdcp_stream_encryption,
.check_link = intel_dp_mst_hdcp_check_link,
.hdcp_capable = intel_dp_hdcp_capable,
-
+ .write_2_2_msg = intel_dp_hdcp2_write_msg,
+ .read_2_2_msg = intel_dp_hdcp2_read_msg,
+ .config_stream_type = intel_dp_hdcp2_config_stream_type,
+ .stream_2_2_encryption = intel_dp_mst_hdcp2_stream_encryption,
+ .check_2_2_link = intel_dp_mst_hdcp2_check_link,
+ .hdcp_2_2_capable = intel_dp_hdcp2_capable,
.protocol = HDCP_PROTOCOL_DP,
};
@@ -693,10 +829,10 @@ int intel_dp_init_hdcp(struct intel_digital_port *dig_port,
return 0;
if (intel_connector->mst_port)
- return intel_hdcp_init(intel_connector, port,
+ return intel_hdcp_init(intel_connector, dig_port,
&intel_dp_mst_hdcp_shim);
else if (!intel_dp_is_edp(intel_dp))
- return intel_hdcp_init(intel_connector, port,
+ return intel_hdcp_init(intel_connector, dig_port,
&intel_dp_hdcp_shim);
return 0;
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 91d3979902d0..d5ec8f35e708 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -334,6 +334,27 @@ intel_dp_set_link_train(struct intel_dp *intel_dp,
return drm_dp_dpcd_write(&intel_dp->aux, reg, buf, len) == len;
}
+void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
+ const struct intel_crtc_state *crtc_state,
+ enum drm_dp_phy dp_phy)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ u8 train_set = intel_dp->train_set[0];
+ char phy_name[10];
+
+ drm_dbg_kms(&dev_priv->drm, "Using vswing level %d%s, pre-emphasis level %d%s, at %s\n",
+ train_set & DP_TRAIN_VOLTAGE_SWING_MASK,
+ train_set & DP_TRAIN_MAX_SWING_REACHED ? " (max)" : "",
+ (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) >>
+ DP_TRAIN_PRE_EMPHASIS_SHIFT,
+ train_set & DP_TRAIN_MAX_PRE_EMPHASIS_REACHED ?
+ " (max)" : "",
+ intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)));
+
+ if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy))
+ intel_dp->set_signal_levels(intel_dp, crtc_state);
+}
+
static bool
intel_dp_reset_link_train(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
@@ -341,7 +362,7 @@ intel_dp_reset_link_train(struct intel_dp *intel_dp,
u8 dp_train_pat)
{
memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set));
- intel_dp_set_signal_levels(intel_dp, crtc_state);
+ intel_dp_set_signal_levels(intel_dp, crtc_state, dp_phy);
return intel_dp_set_link_train(intel_dp, crtc_state, dp_phy, dp_train_pat);
}
@@ -355,7 +376,7 @@ intel_dp_update_link_train(struct intel_dp *intel_dp,
DP_TRAINING_LANE0_SET_PHY_REPEATER(dp_phy);
int ret;
- intel_dp_set_signal_levels(intel_dp, crtc_state);
+ intel_dp_set_signal_levels(intel_dp, crtc_state, dp_phy);
ret = drm_dp_dpcd_write(&intel_dp->aux, reg,
intel_dp->train_set, crtc_state->lane_count);
@@ -413,7 +434,7 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp,
drm_dp_dpcd_write(&intel_dp->aux, DP_LINK_RATE_SET,
&rate_select, 1);
- link_config[0] = 0;
+ link_config[0] = crtc_state->vrr.enable ? DP_MSA_TIMING_PAR_IGNORE_EN : 0;
link_config[1] = DP_SET_ANSI_8B10B;
drm_dp_dpcd_write(&intel_dp->aux, DP_DOWNSPREAD_CTRL, link_config, 2);
@@ -676,9 +697,9 @@ static bool intel_dp_disable_dpcd_training_pattern(struct intel_dp *intel_dp,
* @intel_dp: DP struct
* @crtc_state: state for CRTC attached to the encoder
*
- * Stop the link training of the @intel_dp port, disabling the test pattern
- * symbol generation on the port and disabling the training pattern in
- * the sink's DPCD.
+ * Stop the link training of the @intel_dp port, disabling the training
+ * pattern in the sink's DPCD, and disabling the test pattern symbol
+ * generation on the port.
*
* What symbols are output on the port after this point is
* platform specific: On DDI/VLV/CHV platforms it will be the idle pattern
@@ -692,10 +713,9 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp,
{
intel_dp->link_trained = true;
- intel_dp_program_link_training_pattern(intel_dp,
- crtc_state,
- DP_TRAINING_PATTERN_DISABLE);
intel_dp_disable_dpcd_training_pattern(intel_dp, DP_PHY_DPRX);
+ intel_dp_program_link_training_pattern(intel_dp, crtc_state,
+ DP_TRAINING_PATTERN_DISABLE);
}
static bool
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.h b/drivers/gpu/drm/i915/display/intel_dp_link_training.h
index 86905aa24db7..6a1f76bd8c75 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.h
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.h
@@ -17,6 +17,9 @@ void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
enum drm_dp_phy dp_phy,
const u8 link_status[DP_LINK_STATUS_SIZE]);
+void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
+ const struct intel_crtc_state *crtc_state,
+ enum drm_dp_phy dp_phy);
void intel_dp_start_link_train(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state);
void intel_dp_stop_link_train(struct intel_dp *intel_dp,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 27f04aed8764..d6a1b961a0e8 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -53,8 +53,7 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
struct drm_i915_private *i915 = to_i915(connector->base.dev);
const struct drm_display_mode *adjusted_mode =
&crtc_state->hw.adjusted_mode;
- bool constant_n = drm_dp_has_quirk(&intel_dp->desc, 0,
- DP_DPCD_QUIRK_CONSTANT_N);
+ bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N);
int bpp, slots = -EINVAL;
crtc_state->lane_count = limits->max_lane_count;
@@ -569,7 +568,7 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
if (conn_state->content_protection ==
DRM_MODE_CONTENT_PROTECTION_DESIRED)
intel_hdcp_enable(to_intel_connector(conn_state->connector),
- pipe_config->cpu_transcoder,
+ pipe_config,
(u8)conn_state->hdcp_content_type);
}
@@ -829,12 +828,11 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
intel_attach_force_audio_property(connector);
intel_attach_broadcast_rgb_property(connector);
-
- /* TODO: Figure out how to make HDCP work on GEN12+ */
- if (INTEL_GEN(dev_priv) < 12) {
+ if (INTEL_GEN(dev_priv) <= 12) {
ret = intel_dp_init_hdcp(dig_port, intel_connector);
if (ret)
- DRM_DEBUG_KMS("HDCP init failed, skipping.\n");
+ drm_dbg_kms(&dev_priv->drm, "[%s:%d] HDCP MST init failed, skipping.\n",
+ connector->name, connector->base.id);
}
/*
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c
new file mode 100644
index 000000000000..7ba7f315aaee
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dpll.c
@@ -0,0 +1,1363 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+#include <linux/kernel.h>
+#include "intel_display_types.h"
+#include "intel_display.h"
+#include "intel_dpll.h"
+#include "intel_lvds.h"
+#include "intel_panel.h"
+
+struct intel_limit {
+ struct {
+ int min, max;
+ } dot, vco, n, m, m1, m2, p, p1;
+
+ struct {
+ int dot_limit;
+ int p2_slow, p2_fast;
+ } p2;
+};
+static const struct intel_limit intel_limits_i8xx_dac = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 908000, .max = 1512000 },
+ .n = { .min = 2, .max = 16 },
+ .m = { .min = 96, .max = 140 },
+ .m1 = { .min = 18, .max = 26 },
+ .m2 = { .min = 6, .max = 16 },
+ .p = { .min = 4, .max = 128 },
+ .p1 = { .min = 2, .max = 33 },
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 4, .p2_fast = 2 },
+};
+
+static const struct intel_limit intel_limits_i8xx_dvo = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 908000, .max = 1512000 },
+ .n = { .min = 2, .max = 16 },
+ .m = { .min = 96, .max = 140 },
+ .m1 = { .min = 18, .max = 26 },
+ .m2 = { .min = 6, .max = 16 },
+ .p = { .min = 4, .max = 128 },
+ .p1 = { .min = 2, .max = 33 },
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 4, .p2_fast = 4 },
+};
+
+static const struct intel_limit intel_limits_i8xx_lvds = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 908000, .max = 1512000 },
+ .n = { .min = 2, .max = 16 },
+ .m = { .min = 96, .max = 140 },
+ .m1 = { .min = 18, .max = 26 },
+ .m2 = { .min = 6, .max = 16 },
+ .p = { .min = 4, .max = 128 },
+ .p1 = { .min = 1, .max = 6 },
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 14, .p2_fast = 7 },
+};
+
+static const struct intel_limit intel_limits_i9xx_sdvo = {
+ .dot = { .min = 20000, .max = 400000 },
+ .vco = { .min = 1400000, .max = 2800000 },
+ .n = { .min = 1, .max = 6 },
+ .m = { .min = 70, .max = 120 },
+ .m1 = { .min = 8, .max = 18 },
+ .m2 = { .min = 3, .max = 7 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 200000,
+ .p2_slow = 10, .p2_fast = 5 },
+};
+
+static const struct intel_limit intel_limits_i9xx_lvds = {
+ .dot = { .min = 20000, .max = 400000 },
+ .vco = { .min = 1400000, .max = 2800000 },
+ .n = { .min = 1, .max = 6 },
+ .m = { .min = 70, .max = 120 },
+ .m1 = { .min = 8, .max = 18 },
+ .m2 = { .min = 3, .max = 7 },
+ .p = { .min = 7, .max = 98 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 112000,
+ .p2_slow = 14, .p2_fast = 7 },
+};
+
+
+static const struct intel_limit intel_limits_g4x_sdvo = {
+ .dot = { .min = 25000, .max = 270000 },
+ .vco = { .min = 1750000, .max = 3500000},
+ .n = { .min = 1, .max = 4 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 17, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 10, .max = 30 },
+ .p1 = { .min = 1, .max = 3},
+ .p2 = { .dot_limit = 270000,
+ .p2_slow = 10,
+ .p2_fast = 10
+ },
+};
+
+static const struct intel_limit intel_limits_g4x_hdmi = {
+ .dot = { .min = 22000, .max = 400000 },
+ .vco = { .min = 1750000, .max = 3500000},
+ .n = { .min = 1, .max = 4 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 16, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8},
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 10, .p2_fast = 5 },
+};
+
+static const struct intel_limit intel_limits_g4x_single_channel_lvds = {
+ .dot = { .min = 20000, .max = 115000 },
+ .vco = { .min = 1750000, .max = 3500000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 17, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 28, .max = 112 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 0,
+ .p2_slow = 14, .p2_fast = 14
+ },
+};
+
+static const struct intel_limit intel_limits_g4x_dual_channel_lvds = {
+ .dot = { .min = 80000, .max = 224000 },
+ .vco = { .min = 1750000, .max = 3500000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 17, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 14, .max = 42 },
+ .p1 = { .min = 2, .max = 6 },
+ .p2 = { .dot_limit = 0,
+ .p2_slow = 7, .p2_fast = 7
+ },
+};
+
+static const struct intel_limit pnv_limits_sdvo = {
+ .dot = { .min = 20000, .max = 400000},
+ .vco = { .min = 1700000, .max = 3500000 },
+ /* Pineview's Ncounter is a ring counter */
+ .n = { .min = 3, .max = 6 },
+ .m = { .min = 2, .max = 256 },
+ /* Pineview only has one combined m divider, which we treat as m2. */
+ .m1 = { .min = 0, .max = 0 },
+ .m2 = { .min = 0, .max = 254 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 200000,
+ .p2_slow = 10, .p2_fast = 5 },
+};
+
+static const struct intel_limit pnv_limits_lvds = {
+ .dot = { .min = 20000, .max = 400000 },
+ .vco = { .min = 1700000, .max = 3500000 },
+ .n = { .min = 3, .max = 6 },
+ .m = { .min = 2, .max = 256 },
+ .m1 = { .min = 0, .max = 0 },
+ .m2 = { .min = 0, .max = 254 },
+ .p = { .min = 7, .max = 112 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 112000,
+ .p2_slow = 14, .p2_fast = 14 },
+};
+
+/* Ironlake / Sandybridge
+ *
+ * We calculate clock using (register_value + 2) for N/M1/M2, so here
+ * the range value for them is (actual_value - 2).
+ */
+static const struct intel_limit ilk_limits_dac = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 5 },
+ .m = { .min = 79, .max = 127 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 10, .p2_fast = 5 },
+};
+
+static const struct intel_limit ilk_limits_single_lvds = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 79, .max = 118 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 28, .max = 112 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 14, .p2_fast = 14 },
+};
+
+static const struct intel_limit ilk_limits_dual_lvds = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 79, .max = 127 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 14, .max = 56 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 7, .p2_fast = 7 },
+};
+
+/* LVDS 100mhz refclk limits. */
+static const struct intel_limit ilk_limits_single_lvds_100m = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 2 },
+ .m = { .min = 79, .max = 126 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 28, .max = 112 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 14, .p2_fast = 14 },
+};
+
+static const struct intel_limit ilk_limits_dual_lvds_100m = {
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 79, .max = 126 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 14, .max = 42 },
+ .p1 = { .min = 2, .max = 6 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 7, .p2_fast = 7 },
+};
+
+static const struct intel_limit intel_limits_vlv = {
+ /*
+ * These are the data rate limits (measured in fast clocks)
+ * since those are the strictest limits we have. The fast
+ * clock and actual rate limits are more relaxed, so checking
+ * them would make no difference.
+ */
+ .dot = { .min = 25000 * 5, .max = 270000 * 5 },
+ .vco = { .min = 4000000, .max = 6000000 },
+ .n = { .min = 1, .max = 7 },
+ .m1 = { .min = 2, .max = 3 },
+ .m2 = { .min = 11, .max = 156 },
+ .p1 = { .min = 2, .max = 3 },
+ .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
+};
+
+static const struct intel_limit intel_limits_chv = {
+ /*
+ * These are the data rate limits (measured in fast clocks)
+ * since those are the strictest limits we have. The fast
+ * clock and actual rate limits are more relaxed, so checking
+ * them would make no difference.
+ */
+ .dot = { .min = 25000 * 5, .max = 540000 * 5},
+ .vco = { .min = 4800000, .max = 6480000 },
+ .n = { .min = 1, .max = 1 },
+ .m1 = { .min = 2, .max = 2 },
+ .m2 = { .min = 24 << 22, .max = 175 << 22 },
+ .p1 = { .min = 2, .max = 4 },
+ .p2 = { .p2_slow = 1, .p2_fast = 14 },
+};
+
+static const struct intel_limit intel_limits_bxt = {
+ /* FIXME: find real dot limits */
+ .dot = { .min = 0, .max = INT_MAX },
+ .vco = { .min = 4800000, .max = 6700000 },
+ .n = { .min = 1, .max = 1 },
+ .m1 = { .min = 2, .max = 2 },
+ /* FIXME: find real m2 limits */
+ .m2 = { .min = 2 << 22, .max = 255 << 22 },
+ .p1 = { .min = 2, .max = 4 },
+ .p2 = { .p2_slow = 1, .p2_fast = 20 },
+};
+
+/*
+ * Platform specific helpers to calculate the port PLL loopback- (clock.m),
+ * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast
+ * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic.
+ * The helpers' return value is the rate of the clock that is fed to the
+ * display engine's pipe which can be the above fast dot clock rate or a
+ * divided-down version of it.
+ */
+/* m1 is reserved as 0 in Pineview, n is a ring counter */
+int pnv_calc_dpll_params(int refclk, struct dpll *clock)
+{
+ clock->m = clock->m2 + 2;
+ clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n == 0 || clock->p == 0))
+ return 0;
+ clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
+ clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+
+ return clock->dot;
+}
+
+static u32 i9xx_dpll_compute_m(struct dpll *dpll)
+{
+ return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
+}
+
+int i9xx_calc_dpll_params(int refclk, struct dpll *clock)
+{
+ clock->m = i9xx_dpll_compute_m(clock);
+ clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n + 2 == 0 || clock->p == 0))
+ return 0;
+ clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
+ clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+
+ return clock->dot;
+}
+
+int vlv_calc_dpll_params(int refclk, struct dpll *clock)
+{
+ clock->m = clock->m1 * clock->m2;
+ clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n == 0 || clock->p == 0))
+ return 0;
+ clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
+ clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+
+ return clock->dot / 5;
+}
+
+int chv_calc_dpll_params(int refclk, struct dpll *clock)
+{
+ clock->m = clock->m1 * clock->m2;
+ clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n == 0 || clock->p == 0))
+ return 0;
+ clock->vco = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock->m),
+ clock->n << 22);
+ clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+
+ return clock->dot / 5;
+}
+
+/*
+ * Returns whether the given set of divisors are valid for a given refclk with
+ * the given connectors.
+ */
+static bool intel_pll_is_valid(struct drm_i915_private *dev_priv,
+ const struct intel_limit *limit,
+ const struct dpll *clock)
+{
+ if (clock->n < limit->n.min || limit->n.max < clock->n)
+ return false;
+ if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
+ return false;
+ if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
+ return false;
+ if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
+ return false;
+
+ if (!IS_PINEVIEW(dev_priv) && !IS_VALLEYVIEW(dev_priv) &&
+ !IS_CHERRYVIEW(dev_priv) && !IS_GEN9_LP(dev_priv))
+ if (clock->m1 <= clock->m2)
+ return false;
+
+ if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv) &&
+ !IS_GEN9_LP(dev_priv)) {
+ if (clock->p < limit->p.min || limit->p.max < clock->p)
+ return false;
+ if (clock->m < limit->m.min || limit->m.max < clock->m)
+ return false;
+ }
+
+ if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
+ return false;
+ /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
+ * connector, etc., rather than just a single range.
+ */
+ if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
+ return false;
+
+ return true;
+}
+
+static int
+i9xx_select_p2_div(const struct intel_limit *limit,
+ const struct intel_crtc_state *crtc_state,
+ int target)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ /*
+ * For LVDS just rely on its current settings for dual-channel.
+ * We haven't figured out how to reliably set up different
+ * single/dual channel state, if we even can.
+ */
+ if (intel_is_dual_link_lvds(dev_priv))
+ return limit->p2.p2_fast;
+ else
+ return limit->p2.p2_slow;
+ } else {
+ if (target < limit->p2.dot_limit)
+ return limit->p2.p2_slow;
+ else
+ return limit->p2.p2_fast;
+ }
+}
+
+/*
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE. The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
+ *
+ * Target and reference clocks are specified in kHz.
+ *
+ * If match_clock is provided, then best_clock P divider must match the P
+ * divider from @match_clock used for LVDS downclocking.
+ */
+static bool
+i9xx_find_best_dpll(const struct intel_limit *limit,
+ struct intel_crtc_state *crtc_state,
+ int target, int refclk, struct dpll *match_clock,
+ struct dpll *best_clock)
+{
+ struct drm_device *dev = crtc_state->uapi.crtc->dev;
+ struct dpll clock;
+ int err = target;
+
+ memset(best_clock, 0, sizeof(*best_clock));
+
+ clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
+
+ for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
+ clock.m1++) {
+ for (clock.m2 = limit->m2.min;
+ clock.m2 <= limit->m2.max; clock.m2++) {
+ if (clock.m2 >= clock.m1)
+ break;
+ for (clock.n = limit->n.min;
+ clock.n <= limit->n.max; clock.n++) {
+ for (clock.p1 = limit->p1.min;
+ clock.p1 <= limit->p1.max; clock.p1++) {
+ int this_err;
+
+ i9xx_calc_dpll_params(refclk, &clock);
+ if (!intel_pll_is_valid(to_i915(dev),
+ limit,
+ &clock))
+ continue;
+ if (match_clock &&
+ clock.p != match_clock->p)
+ continue;
+
+ this_err = abs(clock.dot - target);
+ if (this_err < err) {
+ *best_clock = clock;
+ err = this_err;
+ }
+ }
+ }
+ }
+ }
+
+ return (err != target);
+}
+
+/*
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE. The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
+ *
+ * Target and reference clocks are specified in kHz.
+ *
+ * If match_clock is provided, then best_clock P divider must match the P
+ * divider from @match_clock used for LVDS downclocking.
+ */
+static bool
+pnv_find_best_dpll(const struct intel_limit *limit,
+ struct intel_crtc_state *crtc_state,
+ int target, int refclk, struct dpll *match_clock,
+ struct dpll *best_clock)
+{
+ struct drm_device *dev = crtc_state->uapi.crtc->dev;
+ struct dpll clock;
+ int err = target;
+
+ memset(best_clock, 0, sizeof(*best_clock));
+
+ clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
+
+ for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
+ clock.m1++) {
+ for (clock.m2 = limit->m2.min;
+ clock.m2 <= limit->m2.max; clock.m2++) {
+ for (clock.n = limit->n.min;
+ clock.n <= limit->n.max; clock.n++) {
+ for (clock.p1 = limit->p1.min;
+ clock.p1 <= limit->p1.max; clock.p1++) {
+ int this_err;
+
+ pnv_calc_dpll_params(refclk, &clock);
+ if (!intel_pll_is_valid(to_i915(dev),
+ limit,
+ &clock))
+ continue;
+ if (match_clock &&
+ clock.p != match_clock->p)
+ continue;
+
+ this_err = abs(clock.dot - target);
+ if (this_err < err) {
+ *best_clock = clock;
+ err = this_err;
+ }
+ }
+ }
+ }
+ }
+
+ return (err != target);
+}
+
+/*
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE. The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
+ *
+ * Target and reference clocks are specified in kHz.
+ *
+ * If match_clock is provided, then best_clock P divider must match the P
+ * divider from @match_clock used for LVDS downclocking.
+ */
+static bool
+g4x_find_best_dpll(const struct intel_limit *limit,
+ struct intel_crtc_state *crtc_state,
+ int target, int refclk, struct dpll *match_clock,
+ struct dpll *best_clock)
+{
+ struct drm_device *dev = crtc_state->uapi.crtc->dev;
+ struct dpll clock;
+ int max_n;
+ bool found = false;
+ /* approximately equals target * 0.00585 */
+ int err_most = (target >> 8) + (target >> 9);
+
+ memset(best_clock, 0, sizeof(*best_clock));
+
+ clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
+
+ max_n = limit->n.max;
+ /* based on hardware requirement, prefer smaller n to precision */
+ for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
+ /* based on hardware requirement, prefere larger m1,m2 */
+ for (clock.m1 = limit->m1.max;
+ clock.m1 >= limit->m1.min; clock.m1--) {
+ for (clock.m2 = limit->m2.max;
+ clock.m2 >= limit->m2.min; clock.m2--) {
+ for (clock.p1 = limit->p1.max;
+ clock.p1 >= limit->p1.min; clock.p1--) {
+ int this_err;
+
+ i9xx_calc_dpll_params(refclk, &clock);
+ if (!intel_pll_is_valid(to_i915(dev),
+ limit,
+ &clock))
+ continue;
+
+ this_err = abs(clock.dot - target);
+ if (this_err < err_most) {
+ *best_clock = clock;
+ err_most = this_err;
+ max_n = clock.n;
+ found = true;
+ }
+ }
+ }
+ }
+ }
+ return found;
+}
+
+/*
+ * Check if the calculated PLL configuration is more optimal compared to the
+ * best configuration and error found so far. Return the calculated error.
+ */
+static bool vlv_PLL_is_optimal(struct drm_device *dev, int target_freq,
+ const struct dpll *calculated_clock,
+ const struct dpll *best_clock,
+ unsigned int best_error_ppm,
+ unsigned int *error_ppm)
+{
+ /*
+ * For CHV ignore the error and consider only the P value.
+ * Prefer a bigger P value based on HW requirements.
+ */
+ if (IS_CHERRYVIEW(to_i915(dev))) {
+ *error_ppm = 0;
+
+ return calculated_clock->p > best_clock->p;
+ }
+
+ if (drm_WARN_ON_ONCE(dev, !target_freq))
+ return false;
+
+ *error_ppm = div_u64(1000000ULL *
+ abs(target_freq - calculated_clock->dot),
+ target_freq);
+ /*
+ * Prefer a better P value over a better (smaller) error if the error
+ * is small. Ensure this preference for future configurations too by
+ * setting the error to 0.
+ */
+ if (*error_ppm < 100 && calculated_clock->p > best_clock->p) {
+ *error_ppm = 0;
+
+ return true;
+ }
+
+ return *error_ppm + 10 < best_error_ppm;
+}
+
+/*
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE. The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
+ */
+static bool
+vlv_find_best_dpll(const struct intel_limit *limit,
+ struct intel_crtc_state *crtc_state,
+ int target, int refclk, struct dpll *match_clock,
+ struct dpll *best_clock)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_device *dev = crtc->base.dev;
+ struct dpll clock;
+ unsigned int bestppm = 1000000;
+ /* min update 19.2 MHz */
+ int max_n = min(limit->n.max, refclk / 19200);
+ bool found = false;
+
+ target *= 5; /* fast clock */
+
+ memset(best_clock, 0, sizeof(*best_clock));
+
+ /* based on hardware requirement, prefer smaller n to precision */
+ for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
+ for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
+ for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
+ clock.p2 -= clock.p2 > 10 ? 2 : 1) {
+ clock.p = clock.p1 * clock.p2;
+ /* based on hardware requirement, prefer bigger m1,m2 values */
+ for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
+ unsigned int ppm;
+
+ clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
+ refclk * clock.m1);
+
+ vlv_calc_dpll_params(refclk, &clock);
+
+ if (!intel_pll_is_valid(to_i915(dev),
+ limit,
+ &clock))
+ continue;
+
+ if (!vlv_PLL_is_optimal(dev, target,
+ &clock,
+ best_clock,
+ bestppm, &ppm))
+ continue;
+
+ *best_clock = clock;
+ bestppm = ppm;
+ found = true;
+ }
+ }
+ }
+ }
+
+ return found;
+}
+
+/*
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE. The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
+ */
+static bool
+chv_find_best_dpll(const struct intel_limit *limit,
+ struct intel_crtc_state *crtc_state,
+ int target, int refclk, struct dpll *match_clock,
+ struct dpll *best_clock)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_device *dev = crtc->base.dev;
+ unsigned int best_error_ppm;
+ struct dpll clock;
+ u64 m2;
+ int found = false;
+
+ memset(best_clock, 0, sizeof(*best_clock));
+ best_error_ppm = 1000000;
+
+ /*
+ * Based on hardware doc, the n always set to 1, and m1 always
+ * set to 2. If requires to support 200Mhz refclk, we need to
+ * revisit this because n may not 1 anymore.
+ */
+ clock.n = 1;
+ clock.m1 = 2;
+ target *= 5; /* fast clock */
+
+ for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
+ for (clock.p2 = limit->p2.p2_fast;
+ clock.p2 >= limit->p2.p2_slow;
+ clock.p2 -= clock.p2 > 10 ? 2 : 1) {
+ unsigned int error_ppm;
+
+ clock.p = clock.p1 * clock.p2;
+
+ m2 = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(target, clock.p * clock.n) << 22,
+ refclk * clock.m1);
+
+ if (m2 > INT_MAX/clock.m1)
+ continue;
+
+ clock.m2 = m2;
+
+ chv_calc_dpll_params(refclk, &clock);
+
+ if (!intel_pll_is_valid(to_i915(dev), limit, &clock))
+ continue;
+
+ if (!vlv_PLL_is_optimal(dev, target, &clock, best_clock,
+ best_error_ppm, &error_ppm))
+ continue;
+
+ *best_clock = clock;
+ best_error_ppm = error_ppm;
+ found = true;
+ }
+ }
+
+ return found;
+}
+
+bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state,
+ struct dpll *best_clock)
+{
+ int refclk = 100000;
+ const struct intel_limit *limit = &intel_limits_bxt;
+
+ return chv_find_best_dpll(limit, crtc_state,
+ crtc_state->port_clock, refclk,
+ NULL, best_clock);
+}
+
+static u32 pnv_dpll_compute_fp(struct dpll *dpll)
+{
+ return (1 << dpll->n) << 16 | dpll->m2;
+}
+
+static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state,
+ struct dpll *reduced_clock)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u32 fp, fp2 = 0;
+
+ if (IS_PINEVIEW(dev_priv)) {
+ fp = pnv_dpll_compute_fp(&crtc_state->dpll);
+ if (reduced_clock)
+ fp2 = pnv_dpll_compute_fp(reduced_clock);
+ } else {
+ fp = i9xx_dpll_compute_fp(&crtc_state->dpll);
+ if (reduced_clock)
+ fp2 = i9xx_dpll_compute_fp(reduced_clock);
+ }
+
+ crtc_state->dpll_hw_state.fp0 = fp;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
+ reduced_clock) {
+ crtc_state->dpll_hw_state.fp1 = fp2;
+ } else {
+ crtc_state->dpll_hw_state.fp1 = fp;
+ }
+}
+
+static void i9xx_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state,
+ struct dpll *reduced_clock)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u32 dpll;
+ struct dpll *clock = &crtc_state->dpll;
+
+ i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock);
+
+ dpll = DPLL_VGA_MODE_DIS;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS))
+ dpll |= DPLLB_MODE_LVDS;
+ else
+ dpll |= DPLLB_MODE_DAC_SERIAL;
+
+ if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
+ IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) {
+ dpll |= (crtc_state->pixel_multiplier - 1)
+ << SDVO_MULTIPLIER_SHIFT_HIRES;
+ }
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO) ||
+ intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+ dpll |= DPLL_SDVO_HIGH_SPEED;
+
+ if (intel_crtc_has_dp_encoder(crtc_state))
+ dpll |= DPLL_SDVO_HIGH_SPEED;
+
+ /* compute bitmask from p1 value */
+ if (IS_PINEVIEW(dev_priv))
+ dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
+ else {
+ dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ if (IS_G4X(dev_priv) && reduced_clock)
+ dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
+ }
+ switch (clock->p2) {
+ case 5:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
+ break;
+ case 7:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
+ break;
+ case 10:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
+ break;
+ case 14:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
+ break;
+ }
+ if (INTEL_GEN(dev_priv) >= 4)
+ dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
+
+ if (crtc_state->sdvo_tv_clock)
+ dpll |= PLL_REF_INPUT_TVCLKINBC;
+ else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
+ intel_panel_use_ssc(dev_priv))
+ dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
+ else
+ dpll |= PLL_REF_INPUT_DREFCLK;
+
+ dpll |= DPLL_VCO_ENABLE;
+ crtc_state->dpll_hw_state.dpll = dpll;
+
+ if (INTEL_GEN(dev_priv) >= 4) {
+ u32 dpll_md = (crtc_state->pixel_multiplier - 1)
+ << DPLL_MD_UDI_MULTIPLIER_SHIFT;
+ crtc_state->dpll_hw_state.dpll_md = dpll_md;
+ }
+}
+
+static void i8xx_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state,
+ struct dpll *reduced_clock)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ u32 dpll;
+ struct dpll *clock = &crtc_state->dpll;
+
+ i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock);
+
+ dpll = DPLL_VGA_MODE_DIS;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ } else {
+ if (clock->p1 == 2)
+ dpll |= PLL_P1_DIVIDE_BY_TWO;
+ else
+ dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ if (clock->p2 == 4)
+ dpll |= PLL_P2_DIVIDE_BY_4;
+ }
+
+ /*
+ * Bspec:
+ * "[Almador Errata}: For the correct operation of the muxed DVO pins
+ * (GDEVSELB/I2Cdata, GIRDBY/I2CClk) and (GFRAMEB/DVI_Data,
+ * GTRDYB/DVI_Clk): Bit 31 (DPLL VCO Enable) and Bit 30 (2X Clock
+ * Enable) must be set to “1” in both the DPLL A Control Register
+ * (06014h-06017h) and DPLL B Control Register (06018h-0601Bh)."
+ *
+ * For simplicity We simply keep both bits always enabled in
+ * both DPLLS. The spec says we should disable the DVO 2X clock
+ * when not needed, but this seems to work fine in practice.
+ */
+ if (IS_I830(dev_priv) ||
+ intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DVO))
+ dpll |= DPLL_DVO_2X_MODE;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
+ intel_panel_use_ssc(dev_priv))
+ dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
+ else
+ dpll |= PLL_REF_INPUT_DREFCLK;
+
+ dpll |= DPLL_VCO_ENABLE;
+ crtc_state->dpll_hw_state.dpll = dpll;
+}
+
+static int hsw_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_atomic_state *state =
+ to_intel_atomic_state(crtc_state->uapi.state);
+
+ if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI) ||
+ INTEL_GEN(dev_priv) >= 11) {
+ struct intel_encoder *encoder =
+ intel_get_crtc_new_encoder(state, crtc_state);
+
+ if (!intel_reserve_shared_dplls(state, crtc, encoder)) {
+ drm_dbg_kms(&dev_priv->drm,
+ "failed to find PLL for pipe %c\n",
+ pipe_name(crtc->pipe));
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static bool ilk_needs_fb_cb_tune(struct dpll *dpll, int factor)
+{
+ return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
+}
+
+
+static void ilk_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state,
+ struct dpll *reduced_clock)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u32 dpll, fp, fp2;
+ int factor;
+
+ /* Enable autotuning of the PLL clock (if permissible) */
+ factor = 21;
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ if ((intel_panel_use_ssc(dev_priv) &&
+ dev_priv->vbt.lvds_ssc_freq == 100000) ||
+ (HAS_PCH_IBX(dev_priv) &&
+ intel_is_dual_link_lvds(dev_priv)))
+ factor = 25;
+ } else if (crtc_state->sdvo_tv_clock) {
+ factor = 20;
+ }
+
+ fp = i9xx_dpll_compute_fp(&crtc_state->dpll);
+
+ if (ilk_needs_fb_cb_tune(&crtc_state->dpll, factor))
+ fp |= FP_CB_TUNE;
+
+ if (reduced_clock) {
+ fp2 = i9xx_dpll_compute_fp(reduced_clock);
+
+ if (reduced_clock->m < factor * reduced_clock->n)
+ fp2 |= FP_CB_TUNE;
+ } else {
+ fp2 = fp;
+ }
+
+ dpll = 0;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS))
+ dpll |= DPLLB_MODE_LVDS;
+ else
+ dpll |= DPLLB_MODE_DAC_SERIAL;
+
+ dpll |= (crtc_state->pixel_multiplier - 1)
+ << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO) ||
+ intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+ dpll |= DPLL_SDVO_HIGH_SPEED;
+
+ if (intel_crtc_has_dp_encoder(crtc_state))
+ dpll |= DPLL_SDVO_HIGH_SPEED;
+
+ /*
+ * The high speed IO clock is only really required for
+ * SDVO/HDMI/DP, but we also enable it for CRT to make it
+ * possible to share the DPLL between CRT and HDMI. Enabling
+ * the clock needlessly does no real harm, except use up a
+ * bit of power potentially.
+ *
+ * We'll limit this to IVB with 3 pipes, since it has only two
+ * DPLLs and so DPLL sharing is the only way to get three pipes
+ * driving PCH ports at the same time. On SNB we could do this,
+ * and potentially avoid enabling the second DPLL, but it's not
+ * clear if it''s a win or loss power wise. No point in doing
+ * this on ILK at all since it has a fixed DPLL<->pipe mapping.
+ */
+ if (INTEL_NUM_PIPES(dev_priv) == 3 &&
+ intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG))
+ dpll |= DPLL_SDVO_HIGH_SPEED;
+
+ /* compute bitmask from p1 value */
+ dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ /* also FPA1 */
+ dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
+
+ switch (crtc_state->dpll.p2) {
+ case 5:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
+ break;
+ case 7:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
+ break;
+ case 10:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
+ break;
+ case 14:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
+ break;
+ }
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
+ intel_panel_use_ssc(dev_priv))
+ dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
+ else
+ dpll |= PLL_REF_INPUT_DREFCLK;
+
+ dpll |= DPLL_VCO_ENABLE;
+
+ crtc_state->dpll_hw_state.dpll = dpll;
+ crtc_state->dpll_hw_state.fp0 = fp;
+ crtc_state->dpll_hw_state.fp1 = fp2;
+}
+
+static int ilk_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_atomic_state *state =
+ to_intel_atomic_state(crtc_state->uapi.state);
+ const struct intel_limit *limit;
+ int refclk = 120000;
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
+ if (!crtc_state->has_pch_encoder)
+ return 0;
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ if (intel_panel_use_ssc(dev_priv)) {
+ drm_dbg_kms(&dev_priv->drm,
+ "using SSC reference clock of %d kHz\n",
+ dev_priv->vbt.lvds_ssc_freq);
+ refclk = dev_priv->vbt.lvds_ssc_freq;
+ }
+
+ if (intel_is_dual_link_lvds(dev_priv)) {
+ if (refclk == 100000)
+ limit = &ilk_limits_dual_lvds_100m;
+ else
+ limit = &ilk_limits_dual_lvds;
+ } else {
+ if (refclk == 100000)
+ limit = &ilk_limits_single_lvds_100m;
+ else
+ limit = &ilk_limits_single_lvds;
+ }
+ } else {
+ limit = &ilk_limits_dac;
+ }
+
+ if (!crtc_state->clock_set &&
+ !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&dev_priv->drm,
+ "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ ilk_compute_dpll(crtc, crtc_state, NULL);
+
+ if (!intel_reserve_shared_dplls(state, crtc, NULL)) {
+ drm_dbg_kms(&dev_priv->drm,
+ "failed to find PLL for pipe %c\n",
+ pipe_name(crtc->pipe));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void vlv_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config)
+{
+ pipe_config->dpll_hw_state.dpll = DPLL_INTEGRATED_REF_CLK_VLV |
+ DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
+ if (crtc->pipe != PIPE_A)
+ pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
+
+ /* DPLL not used with DSI, but still need the rest set up */
+ if (!intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DSI))
+ pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE |
+ DPLL_EXT_BUFFER_ENABLE_VLV;
+
+ pipe_config->dpll_hw_state.dpll_md =
+ (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
+}
+
+void chv_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config)
+{
+ pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLK_CHV |
+ DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
+ if (crtc->pipe != PIPE_A)
+ pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
+
+ /* DPLL not used with DSI, but still need the rest set up */
+ if (!intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DSI))
+ pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE;
+
+ pipe_config->dpll_hw_state.dpll_md =
+ (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
+}
+
+static int chv_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ int refclk = 100000;
+ const struct intel_limit *limit = &intel_limits_chv;
+ struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ if (!crtc_state->clock_set &&
+ !chv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&i915->drm, "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ chv_compute_dpll(crtc, crtc_state);
+
+ return 0;
+}
+
+static int vlv_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ int refclk = 100000;
+ const struct intel_limit *limit = &intel_limits_vlv;
+ struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ if (!crtc_state->clock_set &&
+ !vlv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&i915->drm, "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ vlv_compute_dpll(crtc, crtc_state);
+
+ return 0;
+}
+
+static int g4x_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ const struct intel_limit *limit;
+ int refclk = 96000;
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ if (intel_panel_use_ssc(dev_priv)) {
+ refclk = dev_priv->vbt.lvds_ssc_freq;
+ drm_dbg_kms(&dev_priv->drm,
+ "using SSC reference clock of %d kHz\n",
+ refclk);
+ }
+
+ if (intel_is_dual_link_lvds(dev_priv))
+ limit = &intel_limits_g4x_dual_channel_lvds;
+ else
+ limit = &intel_limits_g4x_single_channel_lvds;
+ } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) ||
+ intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
+ limit = &intel_limits_g4x_hdmi;
+ } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO)) {
+ limit = &intel_limits_g4x_sdvo;
+ } else {
+ /* The option is for other outputs */
+ limit = &intel_limits_i9xx_sdvo;
+ }
+
+ if (!crtc_state->clock_set &&
+ !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&dev_priv->drm,
+ "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ i9xx_compute_dpll(crtc, crtc_state, NULL);
+
+ return 0;
+}
+
+static int pnv_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ const struct intel_limit *limit;
+ int refclk = 96000;
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ if (intel_panel_use_ssc(dev_priv)) {
+ refclk = dev_priv->vbt.lvds_ssc_freq;
+ drm_dbg_kms(&dev_priv->drm,
+ "using SSC reference clock of %d kHz\n",
+ refclk);
+ }
+
+ limit = &pnv_limits_lvds;
+ } else {
+ limit = &pnv_limits_sdvo;
+ }
+
+ if (!crtc_state->clock_set &&
+ !pnv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&dev_priv->drm,
+ "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ i9xx_compute_dpll(crtc, crtc_state, NULL);
+
+ return 0;
+}
+
+static int i9xx_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ const struct intel_limit *limit;
+ int refclk = 96000;
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ if (intel_panel_use_ssc(dev_priv)) {
+ refclk = dev_priv->vbt.lvds_ssc_freq;
+ drm_dbg_kms(&dev_priv->drm,
+ "using SSC reference clock of %d kHz\n",
+ refclk);
+ }
+
+ limit = &intel_limits_i9xx_lvds;
+ } else {
+ limit = &intel_limits_i9xx_sdvo;
+ }
+
+ if (!crtc_state->clock_set &&
+ !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&dev_priv->drm,
+ "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ i9xx_compute_dpll(crtc, crtc_state, NULL);
+
+ return 0;
+}
+
+static int i8xx_crtc_compute_clock(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ const struct intel_limit *limit;
+ int refclk = 48000;
+
+ memset(&crtc_state->dpll_hw_state, 0,
+ sizeof(crtc_state->dpll_hw_state));
+
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
+ if (intel_panel_use_ssc(dev_priv)) {
+ refclk = dev_priv->vbt.lvds_ssc_freq;
+ drm_dbg_kms(&dev_priv->drm,
+ "using SSC reference clock of %d kHz\n",
+ refclk);
+ }
+
+ limit = &intel_limits_i8xx_lvds;
+ } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DVO)) {
+ limit = &intel_limits_i8xx_dvo;
+ } else {
+ limit = &intel_limits_i8xx_dac;
+ }
+
+ if (!crtc_state->clock_set &&
+ !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
+ refclk, NULL, &crtc_state->dpll)) {
+ drm_err(&dev_priv->drm,
+ "Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
+
+ i8xx_compute_dpll(crtc, crtc_state, NULL);
+
+ return 0;
+}
+
+void
+intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv)
+{
+ if (INTEL_GEN(dev_priv) >= 9 || HAS_DDI(dev_priv))
+ dev_priv->display.crtc_compute_clock = hsw_crtc_compute_clock;
+ else if (HAS_PCH_SPLIT(dev_priv))
+ dev_priv->display.crtc_compute_clock = ilk_crtc_compute_clock;
+ else if (IS_CHERRYVIEW(dev_priv))
+ dev_priv->display.crtc_compute_clock = chv_crtc_compute_clock;
+ else if (IS_VALLEYVIEW(dev_priv))
+ dev_priv->display.crtc_compute_clock = vlv_crtc_compute_clock;
+ else if (IS_G4X(dev_priv))
+ dev_priv->display.crtc_compute_clock = g4x_crtc_compute_clock;
+ else if (IS_PINEVIEW(dev_priv))
+ dev_priv->display.crtc_compute_clock = pnv_crtc_compute_clock;
+ else if (!IS_GEN(dev_priv, 2))
+ dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock;
+ else
+ dev_priv->display.crtc_compute_clock = i8xx_crtc_compute_clock;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.h b/drivers/gpu/drm/i915/display/intel_dpll.h
new file mode 100644
index 000000000000..caf4615092e1
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dpll.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _INTEL_DPLL_H_
+#define _INTEL_DPLL_H_
+
+struct dpll;
+struct drm_i915_private;
+struct intel_crtc;
+struct intel_crtc_state;
+
+void intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv);
+int vlv_calc_dpll_params(int refclk, struct dpll *clock);
+int pnv_calc_dpll_params(int refclk, struct dpll *clock);
+int i9xx_calc_dpll_params(int refclk, struct dpll *clock);
+void vlv_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config);
+void chv_compute_dpll(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config);
+
+#endif
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c b/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
index 88628764956d..584c14c4cbd0 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
@@ -43,7 +43,7 @@
#define PANEL_PWM_MAX_VALUE 0xFF
-static u32 dcs_get_backlight(struct intel_connector *connector)
+static u32 dcs_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct intel_encoder *encoder = intel_attached_encoder(connector);
struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 33200b5cfad0..5fd4fa4805ef 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -676,7 +676,7 @@ static bool intel_fbc_hw_tracking_covers_screen(struct intel_crtc *crtc)
}
static bool tiling_is_valid(struct drm_i915_private *dev_priv,
- uint64_t modifier)
+ u64 modifier)
{
switch (modifier) {
case DRM_FORMAT_MOD_LINEAR:
diff --git a/drivers/gpu/drm/i915/display/intel_fdi.c b/drivers/gpu/drm/i915/display/intel_fdi.c
new file mode 100644
index 000000000000..b2eb96ae10a2
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_fdi.c
@@ -0,0 +1,683 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+#include "intel_atomic.h"
+#include "intel_display_types.h"
+#include "intel_fdi.h"
+
+/* units of 100MHz */
+static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state)
+{
+ if (crtc_state->hw.enable && crtc_state->has_pch_encoder)
+ return crtc_state->fdi_lanes;
+
+ return 0;
+}
+
+static int ilk_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
+ struct intel_crtc_state *pipe_config)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ struct drm_atomic_state *state = pipe_config->uapi.state;
+ struct intel_crtc *other_crtc;
+ struct intel_crtc_state *other_crtc_state;
+
+ drm_dbg_kms(&dev_priv->drm,
+ "checking fdi config on pipe %c, lanes %i\n",
+ pipe_name(pipe), pipe_config->fdi_lanes);
+ if (pipe_config->fdi_lanes > 4) {
+ drm_dbg_kms(&dev_priv->drm,
+ "invalid fdi lane config on pipe %c: %i lanes\n",
+ pipe_name(pipe), pipe_config->fdi_lanes);
+ return -EINVAL;
+ }
+
+ if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
+ if (pipe_config->fdi_lanes > 2) {
+ drm_dbg_kms(&dev_priv->drm,
+ "only 2 lanes on haswell, required: %i lanes\n",
+ pipe_config->fdi_lanes);
+ return -EINVAL;
+ } else {
+ return 0;
+ }
+ }
+
+ if (INTEL_NUM_PIPES(dev_priv) == 2)
+ return 0;
+
+ /* Ivybridge 3 pipe is really complicated */
+ switch (pipe) {
+ case PIPE_A:
+ return 0;
+ case PIPE_B:
+ if (pipe_config->fdi_lanes <= 2)
+ return 0;
+
+ other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_C);
+ other_crtc_state =
+ intel_atomic_get_crtc_state(state, other_crtc);
+ if (IS_ERR(other_crtc_state))
+ return PTR_ERR(other_crtc_state);
+
+ if (pipe_required_fdi_lanes(other_crtc_state) > 0) {
+ drm_dbg_kms(&dev_priv->drm,
+ "invalid shared fdi lane config on pipe %c: %i lanes\n",
+ pipe_name(pipe), pipe_config->fdi_lanes);
+ return -EINVAL;
+ }
+ return 0;
+ case PIPE_C:
+ if (pipe_config->fdi_lanes > 2) {
+ drm_dbg_kms(&dev_priv->drm,
+ "only 2 lanes on pipe %c: required %i lanes\n",
+ pipe_name(pipe), pipe_config->fdi_lanes);
+ return -EINVAL;
+ }
+
+ other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_B);
+ other_crtc_state =
+ intel_atomic_get_crtc_state(state, other_crtc);
+ if (IS_ERR(other_crtc_state))
+ return PTR_ERR(other_crtc_state);
+
+ if (pipe_required_fdi_lanes(other_crtc_state) > 2) {
+ drm_dbg_kms(&dev_priv->drm,
+ "fdi link B uses too many lanes to enable link C\n");
+ return -EINVAL;
+ }
+ return 0;
+ default:
+ BUG();
+ }
+}
+
+int ilk_fdi_compute_config(struct intel_crtc *intel_crtc,
+ struct intel_crtc_state *pipe_config)
+{
+ struct drm_device *dev = intel_crtc->base.dev;
+ struct drm_i915_private *i915 = to_i915(dev);
+ const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
+ int lane, link_bw, fdi_dotclock, ret;
+ bool needs_recompute = false;
+
+retry:
+ /* FDI is a binary signal running at ~2.7GHz, encoding
+ * each output octet as 10 bits. The actual frequency
+ * is stored as a divider into a 100MHz clock, and the
+ * mode pixel clock is stored in units of 1KHz.
+ * Hence the bw of each lane in terms of the mode signal
+ * is:
+ */
+ link_bw = intel_fdi_link_freq(i915, pipe_config);
+
+ fdi_dotclock = adjusted_mode->crtc_clock;
+
+ lane = ilk_get_lanes_required(fdi_dotclock, link_bw,
+ pipe_config->pipe_bpp);
+
+ pipe_config->fdi_lanes = lane;
+
+ intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
+ link_bw, &pipe_config->fdi_m_n, false, false);
+
+ ret = ilk_check_fdi_lanes(dev, intel_crtc->pipe, pipe_config);
+ if (ret == -EDEADLK)
+ return ret;
+
+ if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) {
+ pipe_config->pipe_bpp -= 2*3;
+ drm_dbg_kms(&i915->drm,
+ "fdi link bw constraint, reducing pipe bpp to %i\n",
+ pipe_config->pipe_bpp);
+ needs_recompute = true;
+ pipe_config->bw_constrained = true;
+
+ goto retry;
+ }
+
+ if (needs_recompute)
+ return I915_DISPLAY_CONFIG_RETRY;
+
+ return ret;
+}
+
+void intel_fdi_normal_train(struct intel_crtc *crtc)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ enum pipe pipe = crtc->pipe;
+ i915_reg_t reg;
+ u32 temp;
+
+ /* enable normal train */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ if (IS_IVYBRIDGE(dev_priv)) {
+ temp &= ~FDI_LINK_TRAIN_NONE_IVB;
+ temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
+ }
+ intel_de_write(dev_priv, reg, temp);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ if (HAS_PCH_CPT(dev_priv)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_NORMAL_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_NONE;
+ }
+ intel_de_write(dev_priv, reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
+
+ /* wait one idle pattern time */
+ intel_de_posting_read(dev_priv, reg);
+ udelay(1000);
+
+ /* IVB wants error correction enabled */
+ if (IS_IVYBRIDGE(dev_priv))
+ intel_de_write(dev_priv, reg,
+ intel_de_read(dev_priv, reg) | FDI_FS_ERRC_ENABLE | FDI_FE_ERRC_ENABLE);
+}
+
+/* The FDI link training functions for ILK/Ibexpeak. */
+static void ilk_fdi_link_train(struct intel_crtc *crtc,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ enum pipe pipe = crtc->pipe;
+ i915_reg_t reg;
+ u32 temp, tries;
+
+ /* FDI needs bits from pipe first */
+ assert_pipe_enabled(dev_priv, crtc_state->cpu_transcoder);
+
+ /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
+ for train result */
+ reg = FDI_RX_IMR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_RX_SYMBOL_LOCK;
+ temp &= ~FDI_RX_BIT_LOCK;
+ intel_de_write(dev_priv, reg, temp);
+ intel_de_read(dev_priv, reg);
+ udelay(150);
+
+ /* enable CPU FDI TX and PCH FDI RX */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_DP_PORT_WIDTH_MASK;
+ temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ intel_de_write(dev_priv, reg, temp | FDI_TX_ENABLE);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ intel_de_write(dev_priv, reg, temp | FDI_RX_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(150);
+
+ /* Ironlake workaround, enable clock pointer after FDI enable*/
+ intel_de_write(dev_priv, FDI_RX_CHICKEN(pipe),
+ FDI_RX_PHASE_SYNC_POINTER_OVR);
+ intel_de_write(dev_priv, FDI_RX_CHICKEN(pipe),
+ FDI_RX_PHASE_SYNC_POINTER_OVR | FDI_RX_PHASE_SYNC_POINTER_EN);
+
+ reg = FDI_RX_IIR(pipe);
+ for (tries = 0; tries < 5; tries++) {
+ temp = intel_de_read(dev_priv, reg);
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
+
+ if ((temp & FDI_RX_BIT_LOCK)) {
+ drm_dbg_kms(&dev_priv->drm, "FDI train 1 done.\n");
+ intel_de_write(dev_priv, reg, temp | FDI_RX_BIT_LOCK);
+ break;
+ }
+ }
+ if (tries == 5)
+ drm_err(&dev_priv->drm, "FDI train 1 fail!\n");
+
+ /* Train 2 */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ intel_de_write(dev_priv, reg, temp);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(150);
+
+ reg = FDI_RX_IIR(pipe);
+ for (tries = 0; tries < 5; tries++) {
+ temp = intel_de_read(dev_priv, reg);
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
+
+ if (temp & FDI_RX_SYMBOL_LOCK) {
+ intel_de_write(dev_priv, reg,
+ temp | FDI_RX_SYMBOL_LOCK);
+ drm_dbg_kms(&dev_priv->drm, "FDI train 2 done.\n");
+ break;
+ }
+ }
+ if (tries == 5)
+ drm_err(&dev_priv->drm, "FDI train 2 fail!\n");
+
+ drm_dbg_kms(&dev_priv->drm, "FDI train done\n");
+
+}
+
+static const int snb_b_fdi_train_param[] = {
+ FDI_LINK_TRAIN_400MV_0DB_SNB_B,
+ FDI_LINK_TRAIN_400MV_6DB_SNB_B,
+ FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
+ FDI_LINK_TRAIN_800MV_0DB_SNB_B,
+};
+
+/* The FDI link training functions for SNB/Cougarpoint. */
+static void gen6_fdi_link_train(struct intel_crtc *crtc,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ enum pipe pipe = crtc->pipe;
+ i915_reg_t reg;
+ u32 temp, i, retry;
+
+ /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
+ for train result */
+ reg = FDI_RX_IMR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_RX_SYMBOL_LOCK;
+ temp &= ~FDI_RX_BIT_LOCK;
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(150);
+
+ /* enable CPU FDI TX and PCH FDI RX */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_DP_PORT_WIDTH_MASK;
+ temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ /* SNB-B */
+ temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+ intel_de_write(dev_priv, reg, temp | FDI_TX_ENABLE);
+
+ intel_de_write(dev_priv, FDI_RX_MISC(pipe),
+ FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ if (HAS_PCH_CPT(dev_priv)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ }
+ intel_de_write(dev_priv, reg, temp | FDI_RX_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(150);
+
+ for (i = 0; i < 4; i++) {
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[i];
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(500);
+
+ for (retry = 0; retry < 5; retry++) {
+ reg = FDI_RX_IIR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
+ if (temp & FDI_RX_BIT_LOCK) {
+ intel_de_write(dev_priv, reg,
+ temp | FDI_RX_BIT_LOCK);
+ drm_dbg_kms(&dev_priv->drm,
+ "FDI train 1 done.\n");
+ break;
+ }
+ udelay(50);
+ }
+ if (retry < 5)
+ break;
+ }
+ if (i == 4)
+ drm_err(&dev_priv->drm, "FDI train 1 fail!\n");
+
+ /* Train 2 */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ if (IS_GEN(dev_priv, 6)) {
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ /* SNB-B */
+ temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+ }
+ intel_de_write(dev_priv, reg, temp);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ if (HAS_PCH_CPT(dev_priv)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ }
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(150);
+
+ for (i = 0; i < 4; i++) {
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[i];
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(500);
+
+ for (retry = 0; retry < 5; retry++) {
+ reg = FDI_RX_IIR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
+ if (temp & FDI_RX_SYMBOL_LOCK) {
+ intel_de_write(dev_priv, reg,
+ temp | FDI_RX_SYMBOL_LOCK);
+ drm_dbg_kms(&dev_priv->drm,
+ "FDI train 2 done.\n");
+ break;
+ }
+ udelay(50);
+ }
+ if (retry < 5)
+ break;
+ }
+ if (i == 4)
+ drm_err(&dev_priv->drm, "FDI train 2 fail!\n");
+
+ drm_dbg_kms(&dev_priv->drm, "FDI train done.\n");
+}
+
+/* Manual link training for Ivy Bridge A0 parts */
+static void ivb_manual_fdi_link_train(struct intel_crtc *crtc,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ enum pipe pipe = crtc->pipe;
+ i915_reg_t reg;
+ u32 temp, i, j;
+
+ /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
+ for train result */
+ reg = FDI_RX_IMR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_RX_SYMBOL_LOCK;
+ temp &= ~FDI_RX_BIT_LOCK;
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(150);
+
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR before link train 0x%x\n",
+ intel_de_read(dev_priv, FDI_RX_IIR(pipe)));
+
+ /* Try each vswing and preemphasis setting twice before moving on */
+ for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
+ /* disable first in case we need to retry */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
+ temp &= ~FDI_TX_ENABLE;
+ intel_de_write(dev_priv, reg, temp);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_AUTO;
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp &= ~FDI_RX_ENABLE;
+ intel_de_write(dev_priv, reg, temp);
+
+ /* enable CPU FDI TX and PCH FDI RX */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_DP_PORT_WIDTH_MASK;
+ temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
+ temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[j/2];
+ temp |= FDI_COMPOSITE_SYNC;
+ intel_de_write(dev_priv, reg, temp | FDI_TX_ENABLE);
+
+ intel_de_write(dev_priv, FDI_RX_MISC(pipe),
+ FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ temp |= FDI_COMPOSITE_SYNC;
+ intel_de_write(dev_priv, reg, temp | FDI_RX_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(1); /* should be 0.5us */
+
+ for (i = 0; i < 4; i++) {
+ reg = FDI_RX_IIR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
+
+ if (temp & FDI_RX_BIT_LOCK ||
+ (intel_de_read(dev_priv, reg) & FDI_RX_BIT_LOCK)) {
+ intel_de_write(dev_priv, reg,
+ temp | FDI_RX_BIT_LOCK);
+ drm_dbg_kms(&dev_priv->drm,
+ "FDI train 1 done, level %i.\n",
+ i);
+ break;
+ }
+ udelay(1); /* should be 0.5us */
+ }
+ if (i == 4) {
+ drm_dbg_kms(&dev_priv->drm,
+ "FDI train 1 fail on vswing %d\n", j / 2);
+ continue;
+ }
+
+ /* Train 2 */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_NONE_IVB;
+ temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
+ intel_de_write(dev_priv, reg, temp);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(2); /* should be 1.5us */
+
+ for (i = 0; i < 4; i++) {
+ reg = FDI_RX_IIR(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ drm_dbg_kms(&dev_priv->drm, "FDI_RX_IIR 0x%x\n", temp);
+
+ if (temp & FDI_RX_SYMBOL_LOCK ||
+ (intel_de_read(dev_priv, reg) & FDI_RX_SYMBOL_LOCK)) {
+ intel_de_write(dev_priv, reg,
+ temp | FDI_RX_SYMBOL_LOCK);
+ drm_dbg_kms(&dev_priv->drm,
+ "FDI train 2 done, level %i.\n",
+ i);
+ goto train_done;
+ }
+ udelay(2); /* should be 1.5us */
+ }
+ if (i == 4)
+ drm_dbg_kms(&dev_priv->drm,
+ "FDI train 2 fail on vswing %d\n", j / 2);
+ }
+
+train_done:
+ drm_dbg_kms(&dev_priv->drm, "FDI train done.\n");
+}
+
+void ilk_fdi_pll_enable(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
+ enum pipe pipe = intel_crtc->pipe;
+ i915_reg_t reg;
+ u32 temp;
+
+ /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
+ temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
+ temp |= (intel_de_read(dev_priv, PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
+ intel_de_write(dev_priv, reg, temp | FDI_RX_PLL_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(200);
+
+ /* Switch from Rawclk to PCDclk */
+ temp = intel_de_read(dev_priv, reg);
+ intel_de_write(dev_priv, reg, temp | FDI_PCDCLK);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(200);
+
+ /* Enable CPU FDI TX PLL, always on for Ironlake */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ if ((temp & FDI_TX_PLL_ENABLE) == 0) {
+ intel_de_write(dev_priv, reg, temp | FDI_TX_PLL_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(100);
+ }
+}
+
+void ilk_fdi_pll_disable(struct intel_crtc *intel_crtc)
+{
+ struct drm_device *dev = intel_crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ enum pipe pipe = intel_crtc->pipe;
+ i915_reg_t reg;
+ u32 temp;
+
+ /* Switch from PCDclk to Rawclk */
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ intel_de_write(dev_priv, reg, temp & ~FDI_PCDCLK);
+
+ /* Disable CPU FDI TX PLL */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ intel_de_write(dev_priv, reg, temp & ~FDI_TX_PLL_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(100);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ intel_de_write(dev_priv, reg, temp & ~FDI_RX_PLL_ENABLE);
+
+ /* Wait for the clocks to turn off. */
+ intel_de_posting_read(dev_priv, reg);
+ udelay(100);
+}
+
+void ilk_fdi_disable(struct intel_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum pipe pipe = crtc->pipe;
+ i915_reg_t reg;
+ u32 temp;
+
+ /* disable CPU FDI tx and PCH FDI rx */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ intel_de_write(dev_priv, reg, temp & ~FDI_TX_ENABLE);
+ intel_de_posting_read(dev_priv, reg);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~(0x7 << 16);
+ temp |= (intel_de_read(dev_priv, PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
+ intel_de_write(dev_priv, reg, temp & ~FDI_RX_ENABLE);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(100);
+
+ /* Ironlake workaround, disable clock pointer after downing FDI */
+ if (HAS_PCH_IBX(dev_priv))
+ intel_de_write(dev_priv, FDI_RX_CHICKEN(pipe),
+ FDI_RX_PHASE_SYNC_POINTER_OVR);
+
+ /* still set train pattern 1 */
+ reg = FDI_TX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ intel_de_write(dev_priv, reg, temp);
+
+ reg = FDI_RX_CTL(pipe);
+ temp = intel_de_read(dev_priv, reg);
+ if (HAS_PCH_CPT(dev_priv)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ }
+ /* BPC in FDI rx is consistent with that in PIPECONF */
+ temp &= ~(0x07 << 16);
+ temp |= (intel_de_read(dev_priv, PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
+ intel_de_write(dev_priv, reg, temp);
+
+ intel_de_posting_read(dev_priv, reg);
+ udelay(100);
+}
+
+void
+intel_fdi_init_hook(struct drm_i915_private *dev_priv)
+{
+ if (IS_GEN(dev_priv, 5)) {
+ dev_priv->display.fdi_link_train = ilk_fdi_link_train;
+ } else if (IS_GEN(dev_priv, 6)) {
+ dev_priv->display.fdi_link_train = gen6_fdi_link_train;
+ } else if (IS_IVYBRIDGE(dev_priv)) {
+ /* FIXME: detect B0+ stepping and use auto training */
+ dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
+ }
+}
diff --git a/drivers/gpu/drm/i915/display/intel_fdi.h b/drivers/gpu/drm/i915/display/intel_fdi.h
new file mode 100644
index 000000000000..a9cd21663eb8
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_fdi.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _INTEL_FDI_H_
+#define _INTEL_FDI_H_
+
+struct drm_i915_private;
+struct intel_crtc;
+struct intel_crtc_state;
+
+#define I915_DISPLAY_CONFIG_RETRY 1
+int ilk_fdi_compute_config(struct intel_crtc *intel_crtc,
+ struct intel_crtc_state *pipe_config);
+void intel_fdi_normal_train(struct intel_crtc *crtc);
+void ilk_fdi_disable(struct intel_crtc *crtc);
+void ilk_fdi_pll_disable(struct intel_crtc *intel_crtc);
+void ilk_fdi_pll_enable(const struct intel_crtc_state *crtc_state);
+void intel_fdi_init_hook(struct drm_i915_private *dev_priv);
+
+#endif
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index b9d8825e2bb1..ae1371c36a32 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -15,6 +15,7 @@
#include <drm/drm_hdcp.h>
#include <drm/i915_component.h>
+#include "i915_drv.h"
#include "i915_reg.h"
#include "intel_display_power.h"
#include "intel_display_types.h"
@@ -23,9 +24,78 @@
#include "intel_connector.h"
#define KEY_LOAD_TRIES 5
-#define ENCRYPT_STATUS_CHANGE_TIMEOUT_MS 50
#define HDCP2_LC_RETRY_CNT 3
+static int intel_conn_to_vcpi(struct intel_connector *connector)
+{
+ /* For HDMI this is forced to be 0x0. For DP SST also this is 0x0. */
+ return connector->port ? connector->port->vcpi.vcpi : 0;
+}
+
+/*
+ * intel_hdcp_required_content_stream selects the most highest common possible HDCP
+ * content_type for all streams in DP MST topology because security f/w doesn't
+ * have any provision to mark content_type for each stream separately, it marks
+ * all available streams with the content_type proivided at the time of port
+ * authentication. This may prohibit the userspace to use type1 content on
+ * HDCP 2.2 capable sink because of other sink are not capable of HDCP 2.2 in
+ * DP MST topology. Though it is not compulsory, security fw should change its
+ * policy to mark different content_types for different streams.
+ */
+static int
+intel_hdcp_required_content_stream(struct intel_digital_port *dig_port)
+{
+ struct drm_connector_list_iter conn_iter;
+ struct intel_digital_port *conn_dig_port;
+ struct intel_connector *connector;
+ struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
+ bool enforce_type0 = false;
+ int k;
+
+ data->k = 0;
+
+ if (dig_port->hdcp_auth_status)
+ return 0;
+
+ drm_connector_list_iter_begin(&i915->drm, &conn_iter);
+ for_each_intel_connector_iter(connector, &conn_iter) {
+ if (connector->base.status == connector_status_disconnected)
+ continue;
+
+ if (!intel_encoder_is_mst(intel_attached_encoder(connector)))
+ continue;
+
+ conn_dig_port = intel_attached_dig_port(connector);
+ if (conn_dig_port != dig_port)
+ continue;
+
+ if (!enforce_type0 && !intel_hdcp2_capable(connector))
+ enforce_type0 = true;
+
+ data->streams[data->k].stream_id = intel_conn_to_vcpi(connector);
+ data->k++;
+
+ /* if there is only one active stream */
+ if (dig_port->dp.active_mst_links <= 1)
+ break;
+ }
+ drm_connector_list_iter_end(&conn_iter);
+
+ if (drm_WARN_ON(&i915->drm, data->k > INTEL_NUM_PIPES(i915) || data->k == 0))
+ return -EINVAL;
+
+ /*
+ * Apply common protection level across all streams in DP MST Topology.
+ * Use highest supported content type for all streams in DP MST Topology.
+ */
+ for (k = 0; k < data->k; k++)
+ data->streams[k].stream_type =
+ enforce_type0 ? DRM_MODE_HDCP_CONTENT_TYPE0 : DRM_MODE_HDCP_CONTENT_TYPE1;
+
+ return 0;
+}
+
static
bool intel_hdcp_is_ksv_valid(u8 *ksv)
{
@@ -762,15 +832,22 @@ static int intel_hdcp_auth(struct intel_connector *connector)
if (intel_de_wait_for_set(dev_priv,
HDCP_STATUS(dev_priv, cpu_transcoder, port),
HDCP_STATUS_ENC,
- ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+ HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
drm_err(&dev_priv->drm, "Timed out waiting for encryption\n");
return -ETIMEDOUT;
}
- /*
- * XXX: If we have MST-connected devices, we need to enable encryption
- * on those as well.
- */
+ /* DP MST Auth Part 1 Step 2.a and Step 2.b */
+ if (shim->stream_encryption) {
+ ret = shim->stream_encryption(connector, true);
+ if (ret) {
+ drm_err(&dev_priv->drm, "[%s:%d] Failed to enable HDCP 1.4 stream enc\n",
+ connector->base.name, connector->base.base.id);
+ return ret;
+ }
+ drm_dbg_kms(&dev_priv->drm, "HDCP 1.4 transcoder: %s stream encrypted\n",
+ transcoder_name(hdcp->stream_transcoder));
+ }
if (repeater_present)
return intel_hdcp_auth_downstream(connector);
@@ -792,24 +869,29 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
drm_dbg_kms(&dev_priv->drm, "[%s:%d] HDCP is being disabled...\n",
connector->base.name, connector->base.base.id);
- /*
- * If there are other connectors on this port using HDCP, don't disable
- * it. Instead, toggle the HDCP signalling off on that particular
- * connector/pipe and exit.
- */
- if (dig_port->num_hdcp_streams > 0) {
- ret = hdcp->shim->toggle_signalling(dig_port,
- cpu_transcoder, false);
- if (ret)
- DRM_ERROR("Failed to disable HDCP signalling\n");
- return ret;
+ if (hdcp->shim->stream_encryption) {
+ ret = hdcp->shim->stream_encryption(connector, false);
+ if (ret) {
+ drm_err(&dev_priv->drm, "[%s:%d] Failed to disable HDCP 1.4 stream enc\n",
+ connector->base.name, connector->base.base.id);
+ return ret;
+ }
+ drm_dbg_kms(&dev_priv->drm, "HDCP 1.4 transcoder: %s stream encryption disabled\n",
+ transcoder_name(hdcp->stream_transcoder));
+ /*
+ * If there are other connectors on this port using HDCP,
+ * don't disable it until it disabled HDCP encryption for
+ * all connectors in MST topology.
+ */
+ if (dig_port->num_hdcp_streams > 0)
+ return 0;
}
hdcp->hdcp_encrypted = false;
intel_de_write(dev_priv, HDCP_CONF(dev_priv, cpu_transcoder, port), 0);
if (intel_de_wait_for_clear(dev_priv,
HDCP_STATUS(dev_priv, cpu_transcoder, port),
- ~0, ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+ ~0, HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
drm_err(&dev_priv->drm,
"Failed to disable HDCP, timeout clearing status\n");
return -ETIMEDOUT;
@@ -1014,7 +1096,8 @@ static int
hdcp2_prepare_ake_init(struct intel_connector *connector,
struct hdcp2_ake_init *ake_data)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1043,7 +1126,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector,
struct hdcp2_ake_no_stored_km *ek_pub_km,
size_t *msg_sz)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1070,7 +1154,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector,
static int hdcp2_verify_hprime(struct intel_connector *connector,
struct hdcp2_ake_send_hprime *rx_hprime)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1095,7 +1180,8 @@ static int
hdcp2_store_pairing_info(struct intel_connector *connector,
struct hdcp2_ake_send_pairing_info *pairing_info)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1121,7 +1207,8 @@ static int
hdcp2_prepare_lc_init(struct intel_connector *connector,
struct hdcp2_lc_init *lc_init)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1147,7 +1234,8 @@ static int
hdcp2_verify_lprime(struct intel_connector *connector,
struct hdcp2_lc_send_lprime *rx_lprime)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1172,7 +1260,8 @@ hdcp2_verify_lprime(struct intel_connector *connector,
static int hdcp2_prepare_skey(struct intel_connector *connector,
struct hdcp2_ske_send_eks *ske_data)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1200,7 +1289,8 @@ hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector,
*rep_topology,
struct hdcp2_rep_send_ack *rep_send_ack)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1228,7 +1318,8 @@ static int
hdcp2_verify_mprime(struct intel_connector *connector,
struct hdcp2_rep_stream_ready *stream_ready)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1251,7 +1342,8 @@ hdcp2_verify_mprime(struct intel_connector *connector,
static int hdcp2_authenticate_port(struct intel_connector *connector)
{
- struct hdcp_port_data *data = &connector->hdcp.port_data;
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1275,6 +1367,7 @@ static int hdcp2_authenticate_port(struct intel_connector *connector)
static int hdcp2_close_mei_session(struct intel_connector *connector)
{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct i915_hdcp_comp_master *comp;
int ret;
@@ -1288,7 +1381,7 @@ static int hdcp2_close_mei_session(struct intel_connector *connector)
}
ret = comp->ops->close_hdcp_session(comp->mei_dev,
- &connector->hdcp.port_data);
+ &dig_port->hdcp_port_data);
mutex_unlock(&dev_priv->hdcp_comp_mutex);
return ret;
@@ -1448,13 +1541,14 @@ static
int _hdcp2_propagate_stream_management_info(struct intel_connector *connector)
{
struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct intel_hdcp *hdcp = &connector->hdcp;
union {
struct hdcp2_rep_stream_manage stream_manage;
struct hdcp2_rep_stream_ready stream_ready;
} msgs;
const struct intel_hdcp_shim *shim = hdcp->shim;
- int ret;
+ int ret, streams_size_delta, i;
if (connector->hdcp.seq_num_m > HDCP_2_2_SEQ_NUM_MAX)
return -ERANGE;
@@ -1463,16 +1557,18 @@ int _hdcp2_propagate_stream_management_info(struct intel_connector *connector)
msgs.stream_manage.msg_id = HDCP_2_2_REP_STREAM_MANAGE;
drm_hdcp_cpu_to_be24(msgs.stream_manage.seq_num_m, hdcp->seq_num_m);
- /* K no of streams is fixed as 1. Stored as big-endian. */
- msgs.stream_manage.k = cpu_to_be16(1);
+ msgs.stream_manage.k = cpu_to_be16(data->k);
- /* For HDMI this is forced to be 0x0. For DP SST also this is 0x0. */
- msgs.stream_manage.streams[0].stream_id = 0;
- msgs.stream_manage.streams[0].stream_type = hdcp->content_type;
+ for (i = 0; i < data->k; i++) {
+ msgs.stream_manage.streams[i].stream_id = data->streams[i].stream_id;
+ msgs.stream_manage.streams[i].stream_type = data->streams[i].stream_type;
+ }
+ streams_size_delta = (HDCP_2_2_MAX_CONTENT_STREAMS_CNT - data->k) *
+ sizeof(struct hdcp2_streamid_type);
/* Send it to Repeater */
ret = shim->write_2_2_msg(dig_port, &msgs.stream_manage,
- sizeof(msgs.stream_manage));
+ sizeof(msgs.stream_manage) - streams_size_delta);
if (ret < 0)
goto out;
@@ -1481,8 +1577,8 @@ int _hdcp2_propagate_stream_management_info(struct intel_connector *connector)
if (ret < 0)
goto out;
- hdcp->port_data.seq_num_m = hdcp->seq_num_m;
- hdcp->port_data.streams[0].stream_type = hdcp->content_type;
+ data->seq_num_m = hdcp->seq_num_m;
+
ret = hdcp2_verify_mprime(connector, &msgs.stream_ready);
out:
@@ -1606,6 +1702,36 @@ static int hdcp2_authenticate_sink(struct intel_connector *connector)
return ret;
}
+static int hdcp2_enable_stream_encryption(struct intel_connector *connector)
+{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+ struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_hdcp *hdcp = &connector->hdcp;
+ enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
+ enum port port = dig_port->base.port;
+ int ret = 0;
+
+ if (!(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) &
+ LINK_ENCRYPTION_STATUS)) {
+ drm_err(&dev_priv->drm, "[%s:%d] HDCP 2.2 Link is not encrypted\n",
+ connector->base.name, connector->base.base.id);
+ return -EPERM;
+ }
+
+ if (hdcp->shim->stream_2_2_encryption) {
+ ret = hdcp->shim->stream_2_2_encryption(connector, true);
+ if (ret) {
+ drm_err(&dev_priv->drm, "[%s:%d] Failed to enable HDCP 2.2 stream enc\n",
+ connector->base.name, connector->base.base.id);
+ return ret;
+ }
+ drm_dbg_kms(&dev_priv->drm, "HDCP 2.2 transcoder: %s stream encrypted\n",
+ transcoder_name(hdcp->stream_transcoder));
+ }
+
+ return ret;
+}
+
static int hdcp2_enable_encryption(struct intel_connector *connector)
{
struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
@@ -1641,7 +1767,8 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
HDCP2_STATUS(dev_priv, cpu_transcoder,
port),
LINK_ENCRYPTION_STATUS,
- ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
+ HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
+ dig_port->hdcp_auth_status = true;
return ret;
}
@@ -1665,7 +1792,7 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
HDCP2_STATUS(dev_priv, cpu_transcoder,
port),
LINK_ENCRYPTION_STATUS,
- ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
+ HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
if (ret == -ETIMEDOUT)
drm_dbg_kms(&dev_priv->drm, "Disable Encryption Timedout");
@@ -1714,11 +1841,11 @@ hdcp2_propagate_stream_management_info(struct intel_connector *connector)
static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *i915 = to_i915(connector->base.dev);
- struct intel_hdcp *hdcp = &connector->hdcp;
- int ret, i, tries = 3;
+ int ret = 0, i, tries = 3;
- for (i = 0; i < tries; i++) {
+ for (i = 0; i < tries && !dig_port->hdcp_auth_status; i++) {
ret = hdcp2_authenticate_sink(connector);
if (!ret) {
ret = hdcp2_propagate_stream_management_info(connector);
@@ -1728,8 +1855,7 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
ret);
break;
}
- hdcp->port_data.streams[0].stream_type =
- hdcp->content_type;
+
ret = hdcp2_authenticate_port(connector);
if (!ret)
break;
@@ -1744,7 +1870,7 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
drm_dbg_kms(&i915->drm, "Port deauth failed.\n");
}
- if (!ret) {
+ if (!ret && !dig_port->hdcp_auth_status) {
/*
* Ensuring the required 200mSec min time interval between
* Session Key Exchange and encryption.
@@ -1759,12 +1885,16 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
}
}
+ ret = hdcp2_enable_stream_encryption(connector);
+
return ret;
}
static int _intel_hdcp2_enable(struct intel_connector *connector)
{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
@@ -1772,6 +1902,16 @@ static int _intel_hdcp2_enable(struct intel_connector *connector)
connector->base.name, connector->base.base.id,
hdcp->content_type);
+ /* Stream which requires encryption */
+ if (!intel_encoder_is_mst(intel_attached_encoder(connector))) {
+ data->k = 1;
+ data->streams[0].stream_type = hdcp->content_type;
+ } else {
+ ret = intel_hdcp_required_content_stream(dig_port);
+ if (ret)
+ return ret;
+ }
+
ret = hdcp2_authenticate_and_encrypt(connector);
if (ret) {
drm_dbg_kms(&i915->drm, "HDCP2 Type%d Enabling Failed. (%d)\n",
@@ -1789,18 +1929,37 @@ static int _intel_hdcp2_enable(struct intel_connector *connector)
static int _intel_hdcp2_disable(struct intel_connector *connector)
{
+ struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
+ struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
drm_dbg_kms(&i915->drm, "[%s:%d] HDCP2.2 is being Disabled\n",
connector->base.name, connector->base.base.id);
+ if (hdcp->shim->stream_2_2_encryption) {
+ ret = hdcp->shim->stream_2_2_encryption(connector, false);
+ if (ret) {
+ drm_err(&i915->drm, "[%s:%d] Failed to disable HDCP 2.2 stream enc\n",
+ connector->base.name, connector->base.base.id);
+ return ret;
+ }
+ drm_dbg_kms(&i915->drm, "HDCP 2.2 transcoder: %s stream encryption disabled\n",
+ transcoder_name(hdcp->stream_transcoder));
+
+ if (dig_port->num_hdcp_streams > 0)
+ return 0;
+ }
+
ret = hdcp2_disable_encryption(connector);
if (hdcp2_deauthenticate_port(connector) < 0)
drm_dbg_kms(&i915->drm, "Port deauth failed.\n");
connector->hdcp.hdcp2_encrypted = false;
+ dig_port->hdcp_auth_status = false;
+ data->k = 0;
return ret;
}
@@ -1816,6 +1975,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
int ret = 0;
mutex_lock(&hdcp->mutex);
+ mutex_lock(&dig_port->hdcp_mutex);
cpu_transcoder = hdcp->cpu_transcoder;
/* hdcp2_check_link is expected only when HDCP2.2 is Enabled */
@@ -1837,7 +1997,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
goto out;
}
- ret = hdcp->shim->check_2_2_link(dig_port);
+ ret = hdcp->shim->check_2_2_link(dig_port, connector);
if (ret == HDCP_LINK_PROTECTED) {
if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
intel_hdcp_update_value(connector,
@@ -1893,6 +2053,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
}
out:
+ mutex_unlock(&dig_port->hdcp_mutex);
mutex_unlock(&hdcp->mutex);
return ret;
}
@@ -1968,12 +2129,13 @@ static enum mei_fw_tc intel_get_mei_fw_tc(enum transcoder cpu_transcoder)
}
static int initialize_hdcp_port_data(struct intel_connector *connector,
- enum port port,
+ struct intel_digital_port *dig_port,
const struct intel_hdcp_shim *shim)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct hdcp_port_data *data = &dig_port->hdcp_port_data;
struct intel_hdcp *hdcp = &connector->hdcp;
- struct hdcp_port_data *data = &hdcp->port_data;
+ enum port port = dig_port->base.port;
if (INTEL_GEN(dev_priv) < 12)
data->fw_ddi = intel_get_mei_fw_ddi_index(port);
@@ -1994,16 +2156,15 @@ static int initialize_hdcp_port_data(struct intel_connector *connector,
data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED;
data->protocol = (u8)shim->protocol;
- data->k = 1;
if (!data->streams)
- data->streams = kcalloc(data->k,
+ data->streams = kcalloc(INTEL_NUM_PIPES(dev_priv),
sizeof(struct hdcp2_streamid_type),
GFP_KERNEL);
if (!data->streams) {
drm_err(&dev_priv->drm, "Out of Memory\n");
return -ENOMEM;
}
-
+ /* For SST */
data->streams[0].stream_id = 0;
data->streams[0].stream_type = hdcp->content_type;
@@ -2046,14 +2207,15 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv)
}
}
-static void intel_hdcp2_init(struct intel_connector *connector, enum port port,
+static void intel_hdcp2_init(struct intel_connector *connector,
+ struct intel_digital_port *dig_port,
const struct intel_hdcp_shim *shim)
{
struct drm_i915_private *i915 = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
- ret = initialize_hdcp_port_data(connector, port, shim);
+ ret = initialize_hdcp_port_data(connector, dig_port, shim);
if (ret) {
drm_dbg_kms(&i915->drm, "Mei hdcp data init failed\n");
return;
@@ -2063,7 +2225,7 @@ static void intel_hdcp2_init(struct intel_connector *connector, enum port port,
}
int intel_hdcp_init(struct intel_connector *connector,
- enum port port,
+ struct intel_digital_port *dig_port,
const struct intel_hdcp_shim *shim)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
@@ -2073,15 +2235,15 @@ int intel_hdcp_init(struct intel_connector *connector,
if (!shim)
return -EINVAL;
- if (is_hdcp2_supported(dev_priv) && !connector->mst_port)
- intel_hdcp2_init(connector, port, shim);
+ if (is_hdcp2_supported(dev_priv))
+ intel_hdcp2_init(connector, dig_port, shim);
ret =
drm_connector_attach_content_protection_property(&connector->base,
hdcp->hdcp2_supported);
if (ret) {
hdcp->hdcp2_supported = false;
- kfree(hdcp->port_data.streams);
+ kfree(dig_port->hdcp_port_data.streams);
return ret;
}
@@ -2095,7 +2257,7 @@ int intel_hdcp_init(struct intel_connector *connector,
}
int intel_hdcp_enable(struct intel_connector *connector,
- enum transcoder cpu_transcoder, u8 content_type)
+ const struct intel_crtc_state *pipe_config, u8 content_type)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
@@ -2106,15 +2268,28 @@ int intel_hdcp_enable(struct intel_connector *connector,
if (!hdcp->shim)
return -ENOENT;
+ if (!connector->encoder) {
+ drm_err(&dev_priv->drm, "[%s:%d] encoder is not initialized\n",
+ connector->base.name, connector->base.base.id);
+ return -ENODEV;
+ }
+
mutex_lock(&hdcp->mutex);
mutex_lock(&dig_port->hdcp_mutex);
drm_WARN_ON(&dev_priv->drm,
hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED);
hdcp->content_type = content_type;
- hdcp->cpu_transcoder = cpu_transcoder;
+
+ if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DP_MST)) {
+ hdcp->cpu_transcoder = pipe_config->mst_master_transcoder;
+ hdcp->stream_transcoder = pipe_config->cpu_transcoder;
+ } else {
+ hdcp->cpu_transcoder = pipe_config->cpu_transcoder;
+ hdcp->stream_transcoder = INVALID_TRANSCODER;
+ }
if (INTEL_GEN(dev_priv) >= 12)
- hdcp->port_data.fw_tc = intel_get_mei_fw_tc(cpu_transcoder);
+ dig_port->hdcp_port_data.fw_tc = intel_get_mei_fw_tc(hdcp->cpu_transcoder);
/*
* Considering that HDCP2.2 is more secure than HDCP1.4, If the setup
@@ -2234,7 +2409,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state,
if (desired_and_not_enabled || content_protection_type_changed)
intel_hdcp_enable(connector,
- crtc_state->cpu_transcoder,
+ crtc_state,
(u8)conn_state->hdcp_content_type);
}
@@ -2284,7 +2459,6 @@ void intel_hdcp_cleanup(struct intel_connector *connector)
drm_WARN_ON(connector->base.dev, work_pending(&hdcp->prop_work));
mutex_lock(&hdcp->mutex);
- kfree(hdcp->port_data.streams);
hdcp->shim = NULL;
mutex_unlock(&hdcp->mutex);
}
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h
index 1bbf5b67ed0a..8f53b0c7fe5c 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.h
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
@@ -8,6 +8,8 @@
#include <linux/types.h>
+#define HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS 50
+
struct drm_connector;
struct drm_connector_state;
struct drm_i915_private;
@@ -16,16 +18,18 @@ struct intel_connector;
struct intel_crtc_state;
struct intel_encoder;
struct intel_hdcp_shim;
+struct intel_digital_port;
enum port;
enum transcoder;
void intel_hdcp_atomic_check(struct drm_connector *connector,
struct drm_connector_state *old_state,
struct drm_connector_state *new_state);
-int intel_hdcp_init(struct intel_connector *connector, enum port port,
+int intel_hdcp_init(struct intel_connector *connector,
+ struct intel_digital_port *dig_port,
const struct intel_hdcp_shim *hdcp_shim);
int intel_hdcp_enable(struct intel_connector *connector,
- enum transcoder cpu_transcoder, u8 content_type);
+ const struct intel_crtc_state *pipe_config, u8 content_type);
int intel_hdcp_disable(struct intel_connector *connector);
void intel_hdcp_update_pipe(struct intel_atomic_state *state,
struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index c5959590562b..d5f4b40a8460 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -1494,15 +1494,16 @@ static int kbl_repositioning_enc_en_signal(struct intel_connector *connector,
usleep_range(25, 50);
}
- ret = intel_ddi_toggle_hdcp_signalling(&dig_port->base, cpu_transcoder,
- false);
+ ret = intel_ddi_toggle_hdcp_bits(&dig_port->base, cpu_transcoder,
+ false, TRANS_DDI_HDCP_SIGNALLING);
if (ret) {
drm_err(&dev_priv->drm,
"Disable HDCP signalling failed (%d)\n", ret);
return ret;
}
- ret = intel_ddi_toggle_hdcp_signalling(&dig_port->base, cpu_transcoder,
- true);
+
+ ret = intel_ddi_toggle_hdcp_bits(&dig_port->base, cpu_transcoder,
+ true, TRANS_DDI_HDCP_SIGNALLING);
if (ret) {
drm_err(&dev_priv->drm,
"Enable HDCP signalling failed (%d)\n", ret);
@@ -1525,8 +1526,9 @@ int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *dig_port,
if (!enable)
usleep_range(6, 60); /* Bspec says >= 6us */
- ret = intel_ddi_toggle_hdcp_signalling(&dig_port->base, cpu_transcoder,
- enable);
+ ret = intel_ddi_toggle_hdcp_bits(&dig_port->base,
+ cpu_transcoder, enable,
+ TRANS_DDI_HDCP_SIGNALLING);
if (ret) {
drm_err(&dev_priv->drm, "%s HDCP signalling failed (%d)\n",
enable ? "Enable" : "Disable", ret);
@@ -1731,7 +1733,8 @@ int intel_hdmi_hdcp2_read_msg(struct intel_digital_port *dig_port,
}
static
-int intel_hdmi_hdcp2_check_link(struct intel_digital_port *dig_port)
+int intel_hdmi_hdcp2_check_link(struct intel_digital_port *dig_port,
+ struct intel_connector *connector)
{
u8 rx_status[HDCP_2_2_HDMI_RXSTATUS_LEN];
int ret;
@@ -3290,7 +3293,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *dig_port,
intel_hdmi->attached_connector = intel_connector;
if (is_hdcp_supported(dev_priv, port)) {
- int ret = intel_hdcp_init(intel_connector, port,
+ int ret = intel_hdcp_init(intel_connector, dig_port,
&intel_hdmi_hdcp_shim);
if (ret)
drm_dbg_kms(&dev_priv->drm,
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 7a4239d1c241..5fdf52643150 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -511,40 +511,79 @@ static u32 scale_hw_to_user(struct intel_connector *connector,
0, user_max);
}
-static u32 intel_panel_compute_brightness(struct intel_connector *connector,
- u32 val)
+u32 intel_panel_invert_pwm_level(struct intel_connector *connector, u32 val)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
- drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+ drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
if (dev_priv->params.invert_brightness < 0)
return val;
if (dev_priv->params.invert_brightness > 0 ||
dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS) {
- return panel->backlight.max - val + panel->backlight.min;
+ return panel->backlight.pwm_level_max - val + panel->backlight.pwm_level_min;
}
return val;
}
-static u32 lpt_get_backlight(struct intel_connector *connector)
+void intel_panel_set_pwm_level(const struct drm_connector_state *conn_state, u32 val)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_panel *panel = &connector->panel;
+
+ drm_dbg_kms(&i915->drm, "set backlight PWM = %d\n", val);
+ panel->backlight.pwm_funcs->set(conn_state, val);
+}
+
+u32 intel_panel_backlight_level_to_pwm(struct intel_connector *connector, u32 val)
+{
+ struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_panel *panel = &connector->panel;
+
+ drm_WARN_ON_ONCE(&dev_priv->drm,
+ panel->backlight.max == 0 || panel->backlight.pwm_level_max == 0);
+
+ val = scale(val, panel->backlight.min, panel->backlight.max,
+ panel->backlight.pwm_level_min, panel->backlight.pwm_level_max);
+
+ return intel_panel_invert_pwm_level(connector, val);
+}
+
+u32 intel_panel_backlight_level_from_pwm(struct intel_connector *connector, u32 val)
+{
+ struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_panel *panel = &connector->panel;
+
+ drm_WARN_ON_ONCE(&dev_priv->drm,
+ panel->backlight.max == 0 || panel->backlight.pwm_level_max == 0);
+
+ if (dev_priv->params.invert_brightness > 0 ||
+ (dev_priv->params.invert_brightness == 0 && dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS))
+ val = panel->backlight.pwm_level_max - (val - panel->backlight.pwm_level_min);
+
+ return scale(val, panel->backlight.pwm_level_min, panel->backlight.pwm_level_max,
+ panel->backlight.min, panel->backlight.max);
+}
+
+static u32 lpt_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
return intel_de_read(dev_priv, BLC_PWM_PCH_CTL2) & BACKLIGHT_DUTY_CYCLE_MASK;
}
-static u32 pch_get_backlight(struct intel_connector *connector)
+static u32 pch_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
return intel_de_read(dev_priv, BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
}
-static u32 i9xx_get_backlight(struct intel_connector *connector)
+static u32 i9xx_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
@@ -564,23 +603,17 @@ static u32 i9xx_get_backlight(struct intel_connector *connector)
return val;
}
-static u32 _vlv_get_backlight(struct drm_i915_private *dev_priv, enum pipe pipe)
+static u32 vlv_get_backlight(struct intel_connector *connector, enum pipe pipe)
{
+ struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+
if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
return 0;
return intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe)) & BACKLIGHT_DUTY_CYCLE_MASK;
}
-static u32 vlv_get_backlight(struct intel_connector *connector)
-{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- enum pipe pipe = intel_connector_get_pipe(connector);
-
- return _vlv_get_backlight(dev_priv, pipe);
-}
-
-static u32 bxt_get_backlight(struct intel_connector *connector)
+static u32 bxt_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
@@ -589,7 +622,7 @@ static u32 bxt_get_backlight(struct intel_connector *connector)
BXT_BLC_PWM_DUTY(panel->backlight.controller));
}
-static u32 ext_pwm_get_backlight(struct intel_connector *connector)
+static u32 ext_pwm_get_backlight(struct intel_connector *connector, enum pipe unused)
{
struct intel_panel *panel = &connector->panel;
struct pwm_state state;
@@ -624,12 +657,12 @@ static void i9xx_set_backlight(const struct drm_connector_state *conn_state, u32
struct intel_panel *panel = &connector->panel;
u32 tmp, mask;
- drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+ drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
if (panel->backlight.combination_mode) {
u8 lbpc;
- lbpc = level * 0xfe / panel->backlight.max + 1;
+ lbpc = level * 0xfe / panel->backlight.pwm_level_max + 1;
level /= lbpc;
pci_write_config_byte(dev_priv->drm.pdev, LBPC, lbpc);
}
@@ -681,9 +714,8 @@ intel_panel_actually_set_backlight(const struct drm_connector_state *conn_state,
struct drm_i915_private *i915 = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
- drm_dbg_kms(&i915->drm, "set backlight PWM = %d\n", level);
+ drm_dbg_kms(&i915->drm, "set backlight level = %d\n", level);
- level = intel_panel_compute_brightness(connector, level);
panel->backlight.funcs->set(conn_state, level);
}
@@ -732,7 +764,7 @@ static void lpt_disable_backlight(const struct drm_connector_state *old_conn_sta
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
u32 tmp;
- intel_panel_actually_set_backlight(old_conn_state, level);
+ intel_panel_set_pwm_level(old_conn_state, level);
/*
* Although we don't support or enable CPU PWM with LPT/SPT based
@@ -760,7 +792,7 @@ static void pch_disable_backlight(const struct drm_connector_state *old_conn_sta
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
u32 tmp;
- intel_panel_actually_set_backlight(old_conn_state, val);
+ intel_panel_set_pwm_level(old_conn_state, val);
tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
@@ -771,7 +803,7 @@ static void pch_disable_backlight(const struct drm_connector_state *old_conn_sta
static void i9xx_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
- intel_panel_actually_set_backlight(old_conn_state, val);
+ intel_panel_set_pwm_level(old_conn_state, val);
}
static void i965_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
@@ -779,7 +811,7 @@ static void i965_disable_backlight(const struct drm_connector_state *old_conn_st
struct drm_i915_private *dev_priv = to_i915(old_conn_state->connector->dev);
u32 tmp;
- intel_panel_actually_set_backlight(old_conn_state, val);
+ intel_panel_set_pwm_level(old_conn_state, val);
tmp = intel_de_read(dev_priv, BLC_PWM_CTL2);
intel_de_write(dev_priv, BLC_PWM_CTL2, tmp & ~BLM_PWM_ENABLE);
@@ -792,7 +824,7 @@ static void vlv_disable_backlight(const struct drm_connector_state *old_conn_sta
enum pipe pipe = to_intel_crtc(old_conn_state->crtc)->pipe;
u32 tmp;
- intel_panel_actually_set_backlight(old_conn_state, val);
+ intel_panel_set_pwm_level(old_conn_state, val);
tmp = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe),
@@ -806,7 +838,7 @@ static void bxt_disable_backlight(const struct drm_connector_state *old_conn_sta
struct intel_panel *panel = &connector->panel;
u32 tmp;
- intel_panel_actually_set_backlight(old_conn_state, val);
+ intel_panel_set_pwm_level(old_conn_state, val);
tmp = intel_de_read(dev_priv,
BXT_BLC_PWM_CTL(panel->backlight.controller));
@@ -827,7 +859,7 @@ static void cnp_disable_backlight(const struct drm_connector_state *old_conn_sta
struct intel_panel *panel = &connector->panel;
u32 tmp;
- intel_panel_actually_set_backlight(old_conn_state, val);
+ intel_panel_set_pwm_level(old_conn_state, val);
tmp = intel_de_read(dev_priv,
BXT_BLC_PWM_CTL(panel->backlight.controller));
@@ -906,7 +938,7 @@ static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, SOUTH_CHICKEN1, schicken);
}
- pch_ctl2 = panel->backlight.max << 16;
+ pch_ctl2 = panel->backlight.pwm_level_max << 16;
intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
pch_ctl1 = 0;
@@ -923,7 +955,7 @@ static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
pch_ctl1 | BLM_PCH_PWM_ENABLE);
/* This won't stick until the above enable. */
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
}
static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
@@ -958,9 +990,9 @@ static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
/* This won't stick until the above enable. */
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
- pch_ctl2 = panel->backlight.max << 16;
+ pch_ctl2 = panel->backlight.pwm_level_max << 16;
intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
pch_ctl1 = 0;
@@ -987,7 +1019,7 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, BLC_PWM_CTL, 0);
}
- freq = panel->backlight.max;
+ freq = panel->backlight.pwm_level_max;
if (panel->backlight.combination_mode)
freq /= 0xff;
@@ -1001,7 +1033,7 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_posting_read(dev_priv, BLC_PWM_CTL);
/* XXX: combine this into above write? */
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
/*
* Needed to enable backlight on some 855gm models. BLC_HIST_CTL is
@@ -1028,7 +1060,7 @@ static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, BLC_PWM_CTL2, ctl2);
}
- freq = panel->backlight.max;
+ freq = panel->backlight.pwm_level_max;
if (panel->backlight.combination_mode)
freq /= 0xff;
@@ -1044,7 +1076,7 @@ static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_posting_read(dev_priv, BLC_PWM_CTL2);
intel_de_write(dev_priv, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
}
static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
@@ -1063,11 +1095,11 @@ static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe), ctl2);
}
- ctl = panel->backlight.max << 16;
+ ctl = panel->backlight.pwm_level_max << 16;
intel_de_write(dev_priv, VLV_BLC_PWM_CTL(pipe), ctl);
/* XXX: combine this into above write? */
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
ctl2 = 0;
if (panel->backlight.active_low_pwm)
@@ -1116,9 +1148,9 @@ static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv,
BXT_BLC_PWM_FREQ(panel->backlight.controller),
- panel->backlight.max);
+ panel->backlight.pwm_level_max);
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
pwm_ctl = 0;
if (panel->backlight.active_low_pwm)
@@ -1152,9 +1184,9 @@ static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv,
BXT_BLC_PWM_FREQ(panel->backlight.controller),
- panel->backlight.max);
+ panel->backlight.pwm_level_max);
- intel_panel_actually_set_backlight(conn_state, level);
+ intel_panel_set_pwm_level(conn_state, level);
pwm_ctl = 0;
if (panel->backlight.active_low_pwm)
@@ -1174,7 +1206,6 @@ static void ext_pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
struct intel_connector *connector = to_intel_connector(conn_state->connector);
struct intel_panel *panel = &connector->panel;
- level = intel_panel_compute_brightness(connector, level);
pwm_set_relative_duty_cycle(&panel->backlight.pwm_state, level, 100);
panel->backlight.pwm_state.enabled = true;
pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
@@ -1232,10 +1263,8 @@ static u32 intel_panel_get_backlight(struct intel_connector *connector)
mutex_lock(&dev_priv->backlight_lock);
- if (panel->backlight.enabled) {
- val = panel->backlight.funcs->get(connector);
- val = intel_panel_compute_brightness(connector, val);
- }
+ if (panel->backlight.enabled)
+ val = panel->backlight.funcs->get(connector, intel_connector_get_pipe(connector));
mutex_unlock(&dev_priv->backlight_lock);
@@ -1566,13 +1595,13 @@ static u32 get_backlight_max_vbt(struct intel_connector *connector)
u16 pwm_freq_hz = get_vbt_pwm_freq(dev_priv);
u32 pwm;
- if (!panel->backlight.funcs->hz_to_pwm) {
+ if (!panel->backlight.pwm_funcs->hz_to_pwm) {
drm_dbg_kms(&dev_priv->drm,
"backlight frequency conversion not supported\n");
return 0;
}
- pwm = panel->backlight.funcs->hz_to_pwm(connector, pwm_freq_hz);
+ pwm = panel->backlight.pwm_funcs->hz_to_pwm(connector, pwm_freq_hz);
if (!pwm) {
drm_dbg_kms(&dev_priv->drm,
"backlight frequency conversion failed\n");
@@ -1591,7 +1620,7 @@ static u32 get_backlight_min_vbt(struct intel_connector *connector)
struct intel_panel *panel = &connector->panel;
int min;
- drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+ drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
/*
* XXX: If the vbt value is 255, it makes min equal to max, which leads
@@ -1608,7 +1637,7 @@ static u32 get_backlight_min_vbt(struct intel_connector *connector)
}
/* vbt value is a coefficient in range [0..255] */
- return scale(min, 0, 255, 0, panel->backlight.max);
+ return scale(min, 0, 255, 0, panel->backlight.pwm_level_max);
}
static int lpt_setup_backlight(struct intel_connector *connector, enum pipe unused)
@@ -1628,29 +1657,27 @@ static int lpt_setup_backlight(struct intel_connector *connector, enum pipe unus
panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
pch_ctl2 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2);
- panel->backlight.max = pch_ctl2 >> 16;
+ panel->backlight.pwm_level_max = pch_ctl2 >> 16;
cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
- if (!panel->backlight.max)
- panel->backlight.max = get_backlight_max_vbt(connector);
+ if (!panel->backlight.pwm_level_max)
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
- panel->backlight.min = get_backlight_min_vbt(connector);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- panel->backlight.enabled = pch_ctl1 & BLM_PCH_PWM_ENABLE;
+ panel->backlight.pwm_enabled = pch_ctl1 & BLM_PCH_PWM_ENABLE;
- cpu_mode = panel->backlight.enabled && HAS_PCH_LPT(dev_priv) &&
+ cpu_mode = panel->backlight.pwm_enabled && HAS_PCH_LPT(dev_priv) &&
!(pch_ctl1 & BLM_PCH_OVERRIDE_ENABLE) &&
(cpu_ctl2 & BLM_PWM_ENABLE);
- if (cpu_mode)
- val = pch_get_backlight(connector);
- else
- val = lpt_get_backlight(connector);
if (cpu_mode) {
+ val = pch_get_backlight(connector, unused);
+
drm_dbg_kms(&dev_priv->drm,
"CPU backlight register was enabled, switching to PCH override\n");
@@ -1663,10 +1690,6 @@ static int lpt_setup_backlight(struct intel_connector *connector, enum pipe unus
cpu_ctl2 & ~BLM_PWM_ENABLE);
}
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
-
return 0;
}
@@ -1674,29 +1697,24 @@ static int pch_setup_backlight(struct intel_connector *connector, enum pipe unus
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
- u32 cpu_ctl2, pch_ctl1, pch_ctl2, val;
+ u32 cpu_ctl2, pch_ctl1, pch_ctl2;
pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
pch_ctl2 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2);
- panel->backlight.max = pch_ctl2 >> 16;
+ panel->backlight.pwm_level_max = pch_ctl2 >> 16;
- if (!panel->backlight.max)
- panel->backlight.max = get_backlight_max_vbt(connector);
+ if (!panel->backlight.pwm_level_max)
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
- panel->backlight.min = get_backlight_min_vbt(connector);
-
- val = pch_get_backlight(connector);
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
- panel->backlight.enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&
+ panel->backlight.pwm_enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&
(pch_ctl1 & BLM_PCH_PWM_ENABLE);
return 0;
@@ -1716,27 +1734,26 @@ static int i9xx_setup_backlight(struct intel_connector *connector, enum pipe unu
if (IS_PINEVIEW(dev_priv))
panel->backlight.active_low_pwm = ctl & BLM_POLARITY_PNV;
- panel->backlight.max = ctl >> 17;
+ panel->backlight.pwm_level_max = ctl >> 17;
- if (!panel->backlight.max) {
- panel->backlight.max = get_backlight_max_vbt(connector);
- panel->backlight.max >>= 1;
+ if (!panel->backlight.pwm_level_max) {
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
+ panel->backlight.pwm_level_max >>= 1;
}
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
if (panel->backlight.combination_mode)
- panel->backlight.max *= 0xff;
+ panel->backlight.pwm_level_max *= 0xff;
- panel->backlight.min = get_backlight_min_vbt(connector);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- val = i9xx_get_backlight(connector);
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
+ val = i9xx_get_backlight(connector, unused);
+ val = intel_panel_invert_pwm_level(connector, val);
+ val = clamp(val, panel->backlight.pwm_level_min, panel->backlight.pwm_level_max);
- panel->backlight.enabled = val != 0;
+ panel->backlight.pwm_enabled = val != 0;
return 0;
}
@@ -1745,32 +1762,27 @@ static int i965_setup_backlight(struct intel_connector *connector, enum pipe unu
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
- u32 ctl, ctl2, val;
+ u32 ctl, ctl2;
ctl2 = intel_de_read(dev_priv, BLC_PWM_CTL2);
panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;
panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
ctl = intel_de_read(dev_priv, BLC_PWM_CTL);
- panel->backlight.max = ctl >> 16;
+ panel->backlight.pwm_level_max = ctl >> 16;
- if (!panel->backlight.max)
- panel->backlight.max = get_backlight_max_vbt(connector);
+ if (!panel->backlight.pwm_level_max)
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
if (panel->backlight.combination_mode)
- panel->backlight.max *= 0xff;
+ panel->backlight.pwm_level_max *= 0xff;
- panel->backlight.min = get_backlight_min_vbt(connector);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- val = i9xx_get_backlight(connector);
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
-
- panel->backlight.enabled = ctl2 & BLM_PWM_ENABLE;
+ panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;
return 0;
}
@@ -1779,7 +1791,7 @@ static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
- u32 ctl, ctl2, val;
+ u32 ctl, ctl2;
if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
return -ENODEV;
@@ -1788,22 +1800,17 @@ static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe
panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
ctl = intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe));
- panel->backlight.max = ctl >> 16;
+ panel->backlight.pwm_level_max = ctl >> 16;
- if (!panel->backlight.max)
- panel->backlight.max = get_backlight_max_vbt(connector);
+ if (!panel->backlight.pwm_level_max)
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
- panel->backlight.min = get_backlight_min_vbt(connector);
-
- val = _vlv_get_backlight(dev_priv, pipe);
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- panel->backlight.enabled = ctl2 & BLM_PWM_ENABLE;
+ panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;
return 0;
}
@@ -1828,24 +1835,18 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
}
panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;
- panel->backlight.max =
- intel_de_read(dev_priv,
- BXT_BLC_PWM_FREQ(panel->backlight.controller));
+ panel->backlight.pwm_level_max =
+ intel_de_read(dev_priv, BXT_BLC_PWM_FREQ(panel->backlight.controller));
- if (!panel->backlight.max)
- panel->backlight.max = get_backlight_max_vbt(connector);
+ if (!panel->backlight.pwm_level_max)
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
- panel->backlight.min = get_backlight_min_vbt(connector);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- val = bxt_get_backlight(connector);
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
-
- panel->backlight.enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
+ panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
return 0;
}
@@ -1855,7 +1856,7 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
- u32 pwm_ctl, val;
+ u32 pwm_ctl;
/*
* CNP has the BXT implementation of backlight, but with only one
@@ -1868,24 +1869,18 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
BXT_BLC_PWM_CTL(panel->backlight.controller));
panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;
- panel->backlight.max =
- intel_de_read(dev_priv,
- BXT_BLC_PWM_FREQ(panel->backlight.controller));
+ panel->backlight.pwm_level_max =
+ intel_de_read(dev_priv, BXT_BLC_PWM_FREQ(panel->backlight.controller));
- if (!panel->backlight.max)
- panel->backlight.max = get_backlight_max_vbt(connector);
+ if (!panel->backlight.pwm_level_max)
+ panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
- if (!panel->backlight.max)
+ if (!panel->backlight.pwm_level_max)
return -ENODEV;
- panel->backlight.min = get_backlight_min_vbt(connector);
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- val = bxt_get_backlight(connector);
- val = intel_panel_compute_brightness(connector, val);
- panel->backlight.level = clamp(val, panel->backlight.min,
- panel->backlight.max);
-
- panel->backlight.enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
+ panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
return 0;
}
@@ -1915,8 +1910,8 @@ static int ext_pwm_setup_backlight(struct intel_connector *connector,
return -ENODEV;
}
- panel->backlight.max = 100; /* 100% */
- panel->backlight.min = get_backlight_min_vbt(connector);
+ panel->backlight.pwm_level_max = 100; /* 100% */
+ panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
if (pwm_is_enabled(panel->backlight.pwm)) {
/* PWM is already enabled, use existing settings */
@@ -1924,10 +1919,8 @@ static int ext_pwm_setup_backlight(struct intel_connector *connector,
level = pwm_get_relative_duty_cycle(&panel->backlight.pwm_state,
100);
- level = intel_panel_compute_brightness(connector, level);
- panel->backlight.level = clamp(level, panel->backlight.min,
- panel->backlight.max);
- panel->backlight.enabled = true;
+ level = intel_panel_invert_pwm_level(connector, level);
+ panel->backlight.pwm_enabled = true;
drm_dbg_kms(&dev_priv->drm, "PWM already enabled at freq %ld, VBT freq %d, level %d\n",
NSEC_PER_SEC / (unsigned long)panel->backlight.pwm_state.period,
@@ -1943,6 +1936,58 @@ static int ext_pwm_setup_backlight(struct intel_connector *connector,
return 0;
}
+static void intel_pwm_set_backlight(const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct intel_panel *panel = &connector->panel;
+
+ panel->backlight.pwm_funcs->set(conn_state,
+ intel_panel_invert_pwm_level(connector, level));
+}
+
+static u32 intel_pwm_get_backlight(struct intel_connector *connector, enum pipe pipe)
+{
+ struct intel_panel *panel = &connector->panel;
+
+ return intel_panel_invert_pwm_level(connector,
+ panel->backlight.pwm_funcs->get(connector, pipe));
+}
+
+static void intel_pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
+ const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct intel_panel *panel = &connector->panel;
+
+ panel->backlight.pwm_funcs->enable(crtc_state, conn_state,
+ intel_panel_invert_pwm_level(connector, level));
+}
+
+static void intel_pwm_disable_backlight(const struct drm_connector_state *conn_state, u32 level)
+{
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
+ struct intel_panel *panel = &connector->panel;
+
+ panel->backlight.pwm_funcs->disable(conn_state,
+ intel_panel_invert_pwm_level(connector, level));
+}
+
+static int intel_pwm_setup_backlight(struct intel_connector *connector, enum pipe pipe)
+{
+ struct intel_panel *panel = &connector->panel;
+ int ret = panel->backlight.pwm_funcs->setup(connector, pipe);
+
+ if (ret < 0)
+ return ret;
+
+ panel->backlight.min = panel->backlight.pwm_level_min;
+ panel->backlight.max = panel->backlight.pwm_level_max;
+ panel->backlight.level = intel_pwm_get_backlight(connector, pipe);
+ panel->backlight.enabled = panel->backlight.pwm_enabled;
+
+ return 0;
+}
+
void intel_panel_update_backlight(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
@@ -2016,7 +2061,7 @@ static void intel_panel_destroy_backlight(struct intel_panel *panel)
panel->backlight.present = false;
}
-static const struct intel_panel_bl_funcs bxt_funcs = {
+static const struct intel_panel_bl_funcs bxt_pwm_funcs = {
.setup = bxt_setup_backlight,
.enable = bxt_enable_backlight,
.disable = bxt_disable_backlight,
@@ -2025,7 +2070,7 @@ static const struct intel_panel_bl_funcs bxt_funcs = {
.hz_to_pwm = bxt_hz_to_pwm,
};
-static const struct intel_panel_bl_funcs cnp_funcs = {
+static const struct intel_panel_bl_funcs cnp_pwm_funcs = {
.setup = cnp_setup_backlight,
.enable = cnp_enable_backlight,
.disable = cnp_disable_backlight,
@@ -2034,7 +2079,7 @@ static const struct intel_panel_bl_funcs cnp_funcs = {
.hz_to_pwm = cnp_hz_to_pwm,
};
-static const struct intel_panel_bl_funcs lpt_funcs = {
+static const struct intel_panel_bl_funcs lpt_pwm_funcs = {
.setup = lpt_setup_backlight,
.enable = lpt_enable_backlight,
.disable = lpt_disable_backlight,
@@ -2043,7 +2088,7 @@ static const struct intel_panel_bl_funcs lpt_funcs = {
.hz_to_pwm = lpt_hz_to_pwm,
};
-static const struct intel_panel_bl_funcs spt_funcs = {
+static const struct intel_panel_bl_funcs spt_pwm_funcs = {
.setup = lpt_setup_backlight,
.enable = lpt_enable_backlight,
.disable = lpt_disable_backlight,
@@ -2052,7 +2097,7 @@ static const struct intel_panel_bl_funcs spt_funcs = {
.hz_to_pwm = spt_hz_to_pwm,
};
-static const struct intel_panel_bl_funcs pch_funcs = {
+static const struct intel_panel_bl_funcs pch_pwm_funcs = {
.setup = pch_setup_backlight,
.enable = pch_enable_backlight,
.disable = pch_disable_backlight,
@@ -2069,7 +2114,7 @@ static const struct intel_panel_bl_funcs ext_pwm_funcs = {
.get = ext_pwm_get_backlight,
};
-static const struct intel_panel_bl_funcs vlv_funcs = {
+static const struct intel_panel_bl_funcs vlv_pwm_funcs = {
.setup = vlv_setup_backlight,
.enable = vlv_enable_backlight,
.disable = vlv_disable_backlight,
@@ -2078,7 +2123,7 @@ static const struct intel_panel_bl_funcs vlv_funcs = {
.hz_to_pwm = vlv_hz_to_pwm,
};
-static const struct intel_panel_bl_funcs i965_funcs = {
+static const struct intel_panel_bl_funcs i965_pwm_funcs = {
.setup = i965_setup_backlight,
.enable = i965_enable_backlight,
.disable = i965_disable_backlight,
@@ -2087,7 +2132,7 @@ static const struct intel_panel_bl_funcs i965_funcs = {
.hz_to_pwm = i965_hz_to_pwm,
};
-static const struct intel_panel_bl_funcs i9xx_funcs = {
+static const struct intel_panel_bl_funcs i9xx_pwm_funcs = {
.setup = i9xx_setup_backlight,
.enable = i9xx_enable_backlight,
.disable = i9xx_disable_backlight,
@@ -2096,6 +2141,14 @@ static const struct intel_panel_bl_funcs i9xx_funcs = {
.hz_to_pwm = i9xx_hz_to_pwm,
};
+static const struct intel_panel_bl_funcs pwm_bl_funcs = {
+ .setup = intel_pwm_setup_backlight,
+ .enable = intel_pwm_enable_backlight,
+ .disable = intel_pwm_disable_backlight,
+ .set = intel_pwm_set_backlight,
+ .get = intel_pwm_get_backlight,
+};
+
/* Set up chip specific backlight functions */
static void
intel_panel_init_backlight_funcs(struct intel_panel *panel)
@@ -2104,36 +2157,39 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel)
container_of(panel, struct intel_connector, panel);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- if (connector->base.connector_type == DRM_MODE_CONNECTOR_eDP &&
- intel_dp_aux_init_backlight_funcs(connector) == 0)
- return;
-
if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI &&
intel_dsi_dcs_init_backlight_funcs(connector) == 0)
return;
if (IS_GEN9_LP(dev_priv)) {
- panel->backlight.funcs = &bxt_funcs;
+ panel->backlight.pwm_funcs = &bxt_pwm_funcs;
} else if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) {
- panel->backlight.funcs = &cnp_funcs;
+ panel->backlight.pwm_funcs = &cnp_pwm_funcs;
} else if (INTEL_PCH_TYPE(dev_priv) >= PCH_LPT) {
if (HAS_PCH_LPT(dev_priv))
- panel->backlight.funcs = &lpt_funcs;
+ panel->backlight.pwm_funcs = &lpt_pwm_funcs;
else
- panel->backlight.funcs = &spt_funcs;
+ panel->backlight.pwm_funcs = &spt_pwm_funcs;
} else if (HAS_PCH_SPLIT(dev_priv)) {
- panel->backlight.funcs = &pch_funcs;
+ panel->backlight.pwm_funcs = &pch_pwm_funcs;
} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI) {
- panel->backlight.funcs = &ext_pwm_funcs;
+ panel->backlight.pwm_funcs = &ext_pwm_funcs;
} else {
- panel->backlight.funcs = &vlv_funcs;
+ panel->backlight.pwm_funcs = &vlv_pwm_funcs;
}
} else if (IS_GEN(dev_priv, 4)) {
- panel->backlight.funcs = &i965_funcs;
+ panel->backlight.pwm_funcs = &i965_pwm_funcs;
} else {
- panel->backlight.funcs = &i9xx_funcs;
+ panel->backlight.pwm_funcs = &i9xx_pwm_funcs;
}
+
+ if (connector->base.connector_type == DRM_MODE_CONNECTOR_eDP &&
+ intel_dp_aux_init_backlight_funcs(connector) == 0)
+ return;
+
+ /* We're using a standard PWM backlight interface */
+ panel->backlight.funcs = &pwm_bl_funcs;
}
enum drm_connector_status
diff --git a/drivers/gpu/drm/i915/display/intel_panel.h b/drivers/gpu/drm/i915/display/intel_panel.h
index 5b813fe90557..1d340f77bffc 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.h
+++ b/drivers/gpu/drm/i915/display/intel_panel.h
@@ -49,6 +49,10 @@ struct drm_display_mode *
intel_panel_edid_fixed_mode(struct intel_connector *connector);
struct drm_display_mode *
intel_panel_vbt_fixed_mode(struct intel_connector *connector);
+void intel_panel_set_pwm_level(const struct drm_connector_state *conn_state, u32 level);
+u32 intel_panel_invert_pwm_level(struct intel_connector *connector, u32 level);
+u32 intel_panel_backlight_level_to_pwm(struct intel_connector *connector, u32 level);
+u32 intel_panel_backlight_level_from_pwm(struct intel_connector *connector, u32 val);
#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
int intel_backlight_device_register(struct intel_connector *connector);
diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
new file mode 100644
index 000000000000..c4867a8020a5
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_pps.c
@@ -0,0 +1,1406 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "intel_display_types.h"
+#include "intel_dp.h"
+#include "intel_pps.h"
+
+static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv,
+ enum pipe pipe);
+
+static void pps_init_delays(struct intel_dp *intel_dp);
+static void pps_init_registers(struct intel_dp *intel_dp, bool force_disable_vdd);
+
+intel_wakeref_t intel_pps_lock(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ intel_wakeref_t wakeref;
+
+ /*
+ * See intel_pps_reset_all() why we need a power domain reference here.
+ */
+ wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_DISPLAY_CORE);
+ mutex_lock(&dev_priv->pps_mutex);
+
+ return wakeref;
+}
+
+intel_wakeref_t intel_pps_unlock(struct intel_dp *intel_dp,
+ intel_wakeref_t wakeref)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ mutex_unlock(&dev_priv->pps_mutex);
+ intel_display_power_put(dev_priv, POWER_DOMAIN_DISPLAY_CORE, wakeref);
+
+ return 0;
+}
+
+static void
+vlv_power_sequencer_kick(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum pipe pipe = intel_dp->pps.pps_pipe;
+ bool pll_enabled, release_cl_override = false;
+ enum dpio_phy phy = DPIO_PHY(pipe);
+ enum dpio_channel ch = vlv_pipe_to_channel(pipe);
+ u32 DP;
+
+ if (drm_WARN(&dev_priv->drm,
+ intel_de_read(dev_priv, intel_dp->output_reg) & DP_PORT_EN,
+ "skipping pipe %c power sequencer kick due to [ENCODER:%d:%s] being active\n",
+ pipe_name(pipe), dig_port->base.base.base.id,
+ dig_port->base.base.name))
+ return;
+
+ drm_dbg_kms(&dev_priv->drm,
+ "kicking pipe %c power sequencer for [ENCODER:%d:%s]\n",
+ pipe_name(pipe), dig_port->base.base.base.id,
+ dig_port->base.base.name);
+
+ /* Preserve the BIOS-computed detected bit. This is
+ * supposed to be read-only.
+ */
+ DP = intel_de_read(dev_priv, intel_dp->output_reg) & DP_DETECTED;
+ DP |= DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0;
+ DP |= DP_PORT_WIDTH(1);
+ DP |= DP_LINK_TRAIN_PAT_1;
+
+ if (IS_CHERRYVIEW(dev_priv))
+ DP |= DP_PIPE_SEL_CHV(pipe);
+ else
+ DP |= DP_PIPE_SEL(pipe);
+
+ pll_enabled = intel_de_read(dev_priv, DPLL(pipe)) & DPLL_VCO_ENABLE;
+
+ /*
+ * The DPLL for the pipe must be enabled for this to work.
+ * So enable temporarily it if it's not already enabled.
+ */
+ if (!pll_enabled) {
+ release_cl_override = IS_CHERRYVIEW(dev_priv) &&
+ !chv_phy_powergate_ch(dev_priv, phy, ch, true);
+
+ if (vlv_force_pll_on(dev_priv, pipe, vlv_get_dpll(dev_priv))) {
+ drm_err(&dev_priv->drm,
+ "Failed to force on pll for pipe %c!\n",
+ pipe_name(pipe));
+ return;
+ }
+ }
+
+ /*
+ * Similar magic as in intel_dp_enable_port().
+ * We _must_ do this port enable + disable trick
+ * to make this power sequencer lock onto the port.
+ * Otherwise even VDD force bit won't work.
+ */
+ intel_de_write(dev_priv, intel_dp->output_reg, DP);
+ intel_de_posting_read(dev_priv, intel_dp->output_reg);
+
+ intel_de_write(dev_priv, intel_dp->output_reg, DP | DP_PORT_EN);
+ intel_de_posting_read(dev_priv, intel_dp->output_reg);
+
+ intel_de_write(dev_priv, intel_dp->output_reg, DP & ~DP_PORT_EN);
+ intel_de_posting_read(dev_priv, intel_dp->output_reg);
+
+ if (!pll_enabled) {
+ vlv_force_pll_off(dev_priv, pipe);
+
+ if (release_cl_override)
+ chv_phy_powergate_ch(dev_priv, phy, ch, false);
+ }
+}
+
+static enum pipe vlv_find_free_pps(struct drm_i915_private *dev_priv)
+{
+ struct intel_encoder *encoder;
+ unsigned int pipes = (1 << PIPE_A) | (1 << PIPE_B);
+
+ /*
+ * We don't have power sequencer currently.
+ * Pick one that's not used by other ports.
+ */
+ for_each_intel_dp(&dev_priv->drm, encoder) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ if (encoder->type == INTEL_OUTPUT_EDP) {
+ drm_WARN_ON(&dev_priv->drm,
+ intel_dp->pps.active_pipe != INVALID_PIPE &&
+ intel_dp->pps.active_pipe !=
+ intel_dp->pps.pps_pipe);
+
+ if (intel_dp->pps.pps_pipe != INVALID_PIPE)
+ pipes &= ~(1 << intel_dp->pps.pps_pipe);
+ } else {
+ drm_WARN_ON(&dev_priv->drm,
+ intel_dp->pps.pps_pipe != INVALID_PIPE);
+
+ if (intel_dp->pps.active_pipe != INVALID_PIPE)
+ pipes &= ~(1 << intel_dp->pps.active_pipe);
+ }
+ }
+
+ if (pipes == 0)
+ return INVALID_PIPE;
+
+ return ffs(pipes) - 1;
+}
+
+static enum pipe
+vlv_power_sequencer_pipe(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum pipe pipe;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ /* We should never land here with regular DP ports */
+ drm_WARN_ON(&dev_priv->drm, !intel_dp_is_edp(intel_dp));
+
+ drm_WARN_ON(&dev_priv->drm, intel_dp->pps.active_pipe != INVALID_PIPE &&
+ intel_dp->pps.active_pipe != intel_dp->pps.pps_pipe);
+
+ if (intel_dp->pps.pps_pipe != INVALID_PIPE)
+ return intel_dp->pps.pps_pipe;
+
+ pipe = vlv_find_free_pps(dev_priv);
+
+ /*
+ * Didn't find one. This should not happen since there
+ * are two power sequencers and up to two eDP ports.
+ */
+ if (drm_WARN_ON(&dev_priv->drm, pipe == INVALID_PIPE))
+ pipe = PIPE_A;
+
+ vlv_steal_power_sequencer(dev_priv, pipe);
+ intel_dp->pps.pps_pipe = pipe;
+
+ drm_dbg_kms(&dev_priv->drm,
+ "picked pipe %c power sequencer for [ENCODER:%d:%s]\n",
+ pipe_name(intel_dp->pps.pps_pipe),
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+
+ /* init power sequencer on this pipe and port */
+ pps_init_delays(intel_dp);
+ pps_init_registers(intel_dp, true);
+
+ /*
+ * Even vdd force doesn't work until we've made
+ * the power sequencer lock in on the port.
+ */
+ vlv_power_sequencer_kick(intel_dp);
+
+ return intel_dp->pps.pps_pipe;
+}
+
+static int
+bxt_power_sequencer_idx(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ int backlight_controller = dev_priv->vbt.backlight.controller;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ /* We should never land here with regular DP ports */
+ drm_WARN_ON(&dev_priv->drm, !intel_dp_is_edp(intel_dp));
+
+ if (!intel_dp->pps.pps_reset)
+ return backlight_controller;
+
+ intel_dp->pps.pps_reset = false;
+
+ /*
+ * Only the HW needs to be reprogrammed, the SW state is fixed and
+ * has been setup during connector init.
+ */
+ pps_init_registers(intel_dp, false);
+
+ return backlight_controller;
+}
+
+typedef bool (*vlv_pipe_check)(struct drm_i915_private *dev_priv,
+ enum pipe pipe);
+
+static bool vlv_pipe_has_pp_on(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ return intel_de_read(dev_priv, PP_STATUS(pipe)) & PP_ON;
+}
+
+static bool vlv_pipe_has_vdd_on(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ return intel_de_read(dev_priv, PP_CONTROL(pipe)) & EDP_FORCE_VDD;
+}
+
+static bool vlv_pipe_any(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ return true;
+}
+
+static enum pipe
+vlv_initial_pps_pipe(struct drm_i915_private *dev_priv,
+ enum port port,
+ vlv_pipe_check pipe_check)
+{
+ enum pipe pipe;
+
+ for (pipe = PIPE_A; pipe <= PIPE_B; pipe++) {
+ u32 port_sel = intel_de_read(dev_priv, PP_ON_DELAYS(pipe)) &
+ PANEL_PORT_SELECT_MASK;
+
+ if (port_sel != PANEL_PORT_SELECT_VLV(port))
+ continue;
+
+ if (!pipe_check(dev_priv, pipe))
+ continue;
+
+ return pipe;
+ }
+
+ return INVALID_PIPE;
+}
+
+static void
+vlv_initial_power_sequencer_setup(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum port port = dig_port->base.port;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ /* try to find a pipe with this port selected */
+ /* first pick one where the panel is on */
+ intel_dp->pps.pps_pipe = vlv_initial_pps_pipe(dev_priv, port,
+ vlv_pipe_has_pp_on);
+ /* didn't find one? pick one where vdd is on */
+ if (intel_dp->pps.pps_pipe == INVALID_PIPE)
+ intel_dp->pps.pps_pipe = vlv_initial_pps_pipe(dev_priv, port,
+ vlv_pipe_has_vdd_on);
+ /* didn't find one? pick one with just the correct port */
+ if (intel_dp->pps.pps_pipe == INVALID_PIPE)
+ intel_dp->pps.pps_pipe = vlv_initial_pps_pipe(dev_priv, port,
+ vlv_pipe_any);
+
+ /* didn't find one? just let vlv_power_sequencer_pipe() pick one when needed */
+ if (intel_dp->pps.pps_pipe == INVALID_PIPE) {
+ drm_dbg_kms(&dev_priv->drm,
+ "no initial power sequencer for [ENCODER:%d:%s]\n",
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ return;
+ }
+
+ drm_dbg_kms(&dev_priv->drm,
+ "initial power sequencer for [ENCODER:%d:%s]: pipe %c\n",
+ dig_port->base.base.base.id,
+ dig_port->base.base.name,
+ pipe_name(intel_dp->pps.pps_pipe));
+}
+
+void intel_pps_reset_all(struct drm_i915_private *dev_priv)
+{
+ struct intel_encoder *encoder;
+
+ if (drm_WARN_ON(&dev_priv->drm,
+ !(IS_VALLEYVIEW(dev_priv) ||
+ IS_CHERRYVIEW(dev_priv) ||
+ IS_GEN9_LP(dev_priv))))
+ return;
+
+ /*
+ * We can't grab pps_mutex here due to deadlock with power_domain
+ * mutex when power_domain functions are called while holding pps_mutex.
+ * That also means that in order to use pps_pipe the code needs to
+ * hold both a power domain reference and pps_mutex, and the power domain
+ * reference get/put must be done while _not_ holding pps_mutex.
+ * pps_{lock,unlock}() do these steps in the correct order, so one
+ * should use them always.
+ */
+
+ for_each_intel_dp(&dev_priv->drm, encoder) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ drm_WARN_ON(&dev_priv->drm,
+ intel_dp->pps.active_pipe != INVALID_PIPE);
+
+ if (encoder->type != INTEL_OUTPUT_EDP)
+ continue;
+
+ if (IS_GEN9_LP(dev_priv))
+ intel_dp->pps.pps_reset = true;
+ else
+ intel_dp->pps.pps_pipe = INVALID_PIPE;
+ }
+}
+
+struct pps_registers {
+ i915_reg_t pp_ctrl;
+ i915_reg_t pp_stat;
+ i915_reg_t pp_on;
+ i915_reg_t pp_off;
+ i915_reg_t pp_div;
+};
+
+static void intel_pps_get_registers(struct intel_dp *intel_dp,
+ struct pps_registers *regs)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ int pps_idx = 0;
+
+ memset(regs, 0, sizeof(*regs));
+
+ if (IS_GEN9_LP(dev_priv))
+ pps_idx = bxt_power_sequencer_idx(intel_dp);
+ else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+ pps_idx = vlv_power_sequencer_pipe(intel_dp);
+
+ regs->pp_ctrl = PP_CONTROL(pps_idx);
+ regs->pp_stat = PP_STATUS(pps_idx);
+ regs->pp_on = PP_ON_DELAYS(pps_idx);
+ regs->pp_off = PP_OFF_DELAYS(pps_idx);
+
+ /* Cycle delay moved from PP_DIVISOR to PP_CONTROL */
+ if (IS_GEN9_LP(dev_priv) || INTEL_PCH_TYPE(dev_priv) >= PCH_CNP)
+ regs->pp_div = INVALID_MMIO_REG;
+ else
+ regs->pp_div = PP_DIVISOR(pps_idx);
+}
+
+static i915_reg_t
+_pp_ctrl_reg(struct intel_dp *intel_dp)
+{
+ struct pps_registers regs;
+
+ intel_pps_get_registers(intel_dp, &regs);
+
+ return regs.pp_ctrl;
+}
+
+static i915_reg_t
+_pp_stat_reg(struct intel_dp *intel_dp)
+{
+ struct pps_registers regs;
+
+ intel_pps_get_registers(intel_dp, &regs);
+
+ return regs.pp_stat;
+}
+
+static bool edp_have_panel_power(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
+ intel_dp->pps.pps_pipe == INVALID_PIPE)
+ return false;
+
+ return (intel_de_read(dev_priv, _pp_stat_reg(intel_dp)) & PP_ON) != 0;
+}
+
+static bool edp_have_panel_vdd(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
+ intel_dp->pps.pps_pipe == INVALID_PIPE)
+ return false;
+
+ return intel_de_read(dev_priv, _pp_ctrl_reg(intel_dp)) & EDP_FORCE_VDD;
+}
+
+void intel_pps_check_power_unlocked(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ if (!edp_have_panel_power(intel_dp) && !edp_have_panel_vdd(intel_dp)) {
+ drm_WARN(&dev_priv->drm, 1,
+ "eDP powered off while attempting aux channel communication.\n");
+ drm_dbg_kms(&dev_priv->drm, "Status 0x%08x Control 0x%08x\n",
+ intel_de_read(dev_priv, _pp_stat_reg(intel_dp)),
+ intel_de_read(dev_priv, _pp_ctrl_reg(intel_dp)));
+ }
+}
+
+#define IDLE_ON_MASK (PP_ON | PP_SEQUENCE_MASK | 0 | PP_SEQUENCE_STATE_MASK)
+#define IDLE_ON_VALUE (PP_ON | PP_SEQUENCE_NONE | 0 | PP_SEQUENCE_STATE_ON_IDLE)
+
+#define IDLE_OFF_MASK (PP_ON | PP_SEQUENCE_MASK | 0 | 0)
+#define IDLE_OFF_VALUE (0 | PP_SEQUENCE_NONE | 0 | 0)
+
+#define IDLE_CYCLE_MASK (PP_ON | PP_SEQUENCE_MASK | PP_CYCLE_DELAY_ACTIVE | PP_SEQUENCE_STATE_MASK)
+#define IDLE_CYCLE_VALUE (0 | PP_SEQUENCE_NONE | 0 | PP_SEQUENCE_STATE_OFF_IDLE)
+
+static void intel_pps_verify_state(struct intel_dp *intel_dp);
+
+static void wait_panel_status(struct intel_dp *intel_dp,
+ u32 mask,
+ u32 value)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ i915_reg_t pp_stat_reg, pp_ctrl_reg;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ intel_pps_verify_state(intel_dp);
+
+ pp_stat_reg = _pp_stat_reg(intel_dp);
+ pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+
+ drm_dbg_kms(&dev_priv->drm,
+ "mask %08x value %08x status %08x control %08x\n",
+ mask, value,
+ intel_de_read(dev_priv, pp_stat_reg),
+ intel_de_read(dev_priv, pp_ctrl_reg));
+
+ if (intel_de_wait_for_register(dev_priv, pp_stat_reg,
+ mask, value, 5000))
+ drm_err(&dev_priv->drm,
+ "Panel status timeout: status %08x control %08x\n",
+ intel_de_read(dev_priv, pp_stat_reg),
+ intel_de_read(dev_priv, pp_ctrl_reg));
+
+ drm_dbg_kms(&dev_priv->drm, "Wait complete\n");
+}
+
+static void wait_panel_on(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+ drm_dbg_kms(&i915->drm, "Wait for panel power on\n");
+ wait_panel_status(intel_dp, IDLE_ON_MASK, IDLE_ON_VALUE);
+}
+
+static void wait_panel_off(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+ drm_dbg_kms(&i915->drm, "Wait for panel power off time\n");
+ wait_panel_status(intel_dp, IDLE_OFF_MASK, IDLE_OFF_VALUE);
+}
+
+static void wait_panel_power_cycle(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ ktime_t panel_power_on_time;
+ s64 panel_power_off_duration;
+
+ drm_dbg_kms(&i915->drm, "Wait for panel power cycle\n");
+
+ /* take the difference of currrent time and panel power off time
+ * and then make panel wait for t11_t12 if needed. */
+ panel_power_on_time = ktime_get_boottime();
+ panel_power_off_duration = ktime_ms_delta(panel_power_on_time, intel_dp->pps.panel_power_off_time);
+
+ /* When we disable the VDD override bit last we have to do the manual
+ * wait. */
+ if (panel_power_off_duration < (s64)intel_dp->pps.panel_power_cycle_delay)
+ wait_remaining_ms_from_jiffies(jiffies,
+ intel_dp->pps.panel_power_cycle_delay - panel_power_off_duration);
+
+ wait_panel_status(intel_dp, IDLE_CYCLE_MASK, IDLE_CYCLE_VALUE);
+}
+
+void intel_pps_wait_power_cycle(struct intel_dp *intel_dp)
+{
+ intel_wakeref_t wakeref;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ with_intel_pps_lock(intel_dp, wakeref)
+ wait_panel_power_cycle(intel_dp);
+}
+
+static void wait_backlight_on(struct intel_dp *intel_dp)
+{
+ wait_remaining_ms_from_jiffies(intel_dp->pps.last_power_on,
+ intel_dp->pps.backlight_on_delay);
+}
+
+static void edp_wait_backlight_off(struct intel_dp *intel_dp)
+{
+ wait_remaining_ms_from_jiffies(intel_dp->pps.last_backlight_off,
+ intel_dp->pps.backlight_off_delay);
+}
+
+/* Read the current pp_control value, unlocking the register if it
+ * is locked
+ */
+
+static u32 ilk_get_pp_control(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ u32 control;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ control = intel_de_read(dev_priv, _pp_ctrl_reg(intel_dp));
+ if (drm_WARN_ON(&dev_priv->drm, !HAS_DDI(dev_priv) &&
+ (control & PANEL_UNLOCK_MASK) != PANEL_UNLOCK_REGS)) {
+ control &= ~PANEL_UNLOCK_MASK;
+ control |= PANEL_UNLOCK_REGS;
+ }
+ return control;
+}
+
+/*
+ * Must be paired with intel_pps_vdd_off_unlocked().
+ * Must hold pps_mutex around the whole on/off sequence.
+ * Can be nested with intel_pps_vdd_{on,off}() calls.
+ */
+bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ u32 pp;
+ i915_reg_t pp_stat_reg, pp_ctrl_reg;
+ bool need_to_disable = !intel_dp->pps.want_panel_vdd;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if (!intel_dp_is_edp(intel_dp))
+ return false;
+
+ cancel_delayed_work(&intel_dp->pps.panel_vdd_work);
+ intel_dp->pps.want_panel_vdd = true;
+
+ if (edp_have_panel_vdd(intel_dp))
+ return need_to_disable;
+
+ drm_WARN_ON(&dev_priv->drm, intel_dp->pps.vdd_wakeref);
+ intel_dp->pps.vdd_wakeref = intel_display_power_get(dev_priv,
+ intel_aux_power_domain(dig_port));
+
+ drm_dbg_kms(&dev_priv->drm, "Turning [ENCODER:%d:%s] VDD on\n",
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+
+ if (!edp_have_panel_power(intel_dp))
+ wait_panel_power_cycle(intel_dp);
+
+ pp = ilk_get_pp_control(intel_dp);
+ pp |= EDP_FORCE_VDD;
+
+ pp_stat_reg = _pp_stat_reg(intel_dp);
+ pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+ drm_dbg_kms(&dev_priv->drm, "PP_STATUS: 0x%08x PP_CONTROL: 0x%08x\n",
+ intel_de_read(dev_priv, pp_stat_reg),
+ intel_de_read(dev_priv, pp_ctrl_reg));
+ /*
+ * If the panel wasn't on, delay before accessing aux channel
+ */
+ if (!edp_have_panel_power(intel_dp)) {
+ drm_dbg_kms(&dev_priv->drm,
+ "[ENCODER:%d:%s] panel power wasn't enabled\n",
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ msleep(intel_dp->pps.panel_power_up_delay);
+ }
+
+ return need_to_disable;
+}
+
+/*
+ * Must be paired with intel_pps_off().
+ * Nested calls to these functions are not allowed since
+ * we drop the lock. Caller must use some higher level
+ * locking to prevent nested calls from other threads.
+ */
+void intel_pps_vdd_on(struct intel_dp *intel_dp)
+{
+ intel_wakeref_t wakeref;
+ bool vdd;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ vdd = false;
+ with_intel_pps_lock(intel_dp, wakeref)
+ vdd = intel_pps_vdd_on_unlocked(intel_dp);
+ I915_STATE_WARN(!vdd, "[ENCODER:%d:%s] VDD already requested on\n",
+ dp_to_dig_port(intel_dp)->base.base.base.id,
+ dp_to_dig_port(intel_dp)->base.base.name);
+}
+
+static void intel_pps_vdd_off_sync_unlocked(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port =
+ dp_to_dig_port(intel_dp);
+ u32 pp;
+ i915_reg_t pp_stat_reg, pp_ctrl_reg;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ drm_WARN_ON(&dev_priv->drm, intel_dp->pps.want_panel_vdd);
+
+ if (!edp_have_panel_vdd(intel_dp))
+ return;
+
+ drm_dbg_kms(&dev_priv->drm, "Turning [ENCODER:%d:%s] VDD off\n",
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+
+ pp = ilk_get_pp_control(intel_dp);
+ pp &= ~EDP_FORCE_VDD;
+
+ pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+ pp_stat_reg = _pp_stat_reg(intel_dp);
+
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+
+ /* Make sure sequencer is idle before allowing subsequent activity */
+ drm_dbg_kms(&dev_priv->drm, "PP_STATUS: 0x%08x PP_CONTROL: 0x%08x\n",
+ intel_de_read(dev_priv, pp_stat_reg),
+ intel_de_read(dev_priv, pp_ctrl_reg));
+
+ if ((pp & PANEL_POWER_ON) == 0)
+ intel_dp->pps.panel_power_off_time = ktime_get_boottime();
+
+ intel_display_power_put(dev_priv,
+ intel_aux_power_domain(dig_port),
+ fetch_and_zero(&intel_dp->pps.vdd_wakeref));
+}
+
+void intel_pps_vdd_off_sync(struct intel_dp *intel_dp)
+{
+ intel_wakeref_t wakeref;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ cancel_delayed_work_sync(&intel_dp->pps.panel_vdd_work);
+ /*
+ * vdd might still be enabled due to the delayed vdd off.
+ * Make sure vdd is actually turned off here.
+ */
+ with_intel_pps_lock(intel_dp, wakeref)
+ intel_pps_vdd_off_sync_unlocked(intel_dp);
+}
+
+static void edp_panel_vdd_work(struct work_struct *__work)
+{
+ struct intel_pps *pps = container_of(to_delayed_work(__work),
+ struct intel_pps, panel_vdd_work);
+ struct intel_dp *intel_dp = container_of(pps, struct intel_dp, pps);
+ intel_wakeref_t wakeref;
+
+ with_intel_pps_lock(intel_dp, wakeref) {
+ if (!intel_dp->pps.want_panel_vdd)
+ intel_pps_vdd_off_sync_unlocked(intel_dp);
+ }
+}
+
+static void edp_panel_vdd_schedule_off(struct intel_dp *intel_dp)
+{
+ unsigned long delay;
+
+ /*
+ * Queue the timer to fire a long time from now (relative to the power
+ * down delay) to keep the panel power up across a sequence of
+ * operations.
+ */
+ delay = msecs_to_jiffies(intel_dp->pps.panel_power_cycle_delay * 5);
+ schedule_delayed_work(&intel_dp->pps.panel_vdd_work, delay);
+}
+
+/*
+ * Must be paired with edp_panel_vdd_on().
+ * Must hold pps_mutex around the whole on/off sequence.
+ * Can be nested with intel_pps_vdd_{on,off}() calls.
+ */
+void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ I915_STATE_WARN(!intel_dp->pps.want_panel_vdd, "[ENCODER:%d:%s] VDD not forced on",
+ dp_to_dig_port(intel_dp)->base.base.base.id,
+ dp_to_dig_port(intel_dp)->base.base.name);
+
+ intel_dp->pps.want_panel_vdd = false;
+
+ if (sync)
+ intel_pps_vdd_off_sync_unlocked(intel_dp);
+ else
+ edp_panel_vdd_schedule_off(intel_dp);
+}
+
+void intel_pps_on_unlocked(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ u32 pp;
+ i915_reg_t pp_ctrl_reg;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ drm_dbg_kms(&dev_priv->drm, "Turn [ENCODER:%d:%s] panel power on\n",
+ dp_to_dig_port(intel_dp)->base.base.base.id,
+ dp_to_dig_port(intel_dp)->base.base.name);
+
+ if (drm_WARN(&dev_priv->drm, edp_have_panel_power(intel_dp),
+ "[ENCODER:%d:%s] panel power already on\n",
+ dp_to_dig_port(intel_dp)->base.base.base.id,
+ dp_to_dig_port(intel_dp)->base.base.name))
+ return;
+
+ wait_panel_power_cycle(intel_dp);
+
+ pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+ pp = ilk_get_pp_control(intel_dp);
+ if (IS_GEN(dev_priv, 5)) {
+ /* ILK workaround: disable reset around power sequence */
+ pp &= ~PANEL_POWER_RESET;
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+ }
+
+ pp |= PANEL_POWER_ON;
+ if (!IS_GEN(dev_priv, 5))
+ pp |= PANEL_POWER_RESET;
+
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+
+ wait_panel_on(intel_dp);
+ intel_dp->pps.last_power_on = jiffies;
+
+ if (IS_GEN(dev_priv, 5)) {
+ pp |= PANEL_POWER_RESET; /* restore panel reset bit */
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+ }
+}
+
+void intel_pps_on(struct intel_dp *intel_dp)
+{
+ intel_wakeref_t wakeref;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ with_intel_pps_lock(intel_dp, wakeref)
+ intel_pps_on_unlocked(intel_dp);
+}
+
+void intel_pps_off_unlocked(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ u32 pp;
+ i915_reg_t pp_ctrl_reg;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ drm_dbg_kms(&dev_priv->drm, "Turn [ENCODER:%d:%s] panel power off\n",
+ dig_port->base.base.base.id, dig_port->base.base.name);
+
+ drm_WARN(&dev_priv->drm, !intel_dp->pps.want_panel_vdd,
+ "Need [ENCODER:%d:%s] VDD to turn off panel\n",
+ dig_port->base.base.base.id, dig_port->base.base.name);
+
+ pp = ilk_get_pp_control(intel_dp);
+ /* We need to switch off panel power _and_ force vdd, for otherwise some
+ * panels get very unhappy and cease to work. */
+ pp &= ~(PANEL_POWER_ON | PANEL_POWER_RESET | EDP_FORCE_VDD |
+ EDP_BLC_ENABLE);
+
+ pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+
+ intel_dp->pps.want_panel_vdd = false;
+
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+
+ wait_panel_off(intel_dp);
+ intel_dp->pps.panel_power_off_time = ktime_get_boottime();
+
+ /* We got a reference when we enabled the VDD. */
+ intel_display_power_put(dev_priv,
+ intel_aux_power_domain(dig_port),
+ fetch_and_zero(&intel_dp->pps.vdd_wakeref));
+}
+
+void intel_pps_off(struct intel_dp *intel_dp)
+{
+ intel_wakeref_t wakeref;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ with_intel_pps_lock(intel_dp, wakeref)
+ intel_pps_off_unlocked(intel_dp);
+}
+
+/* Enable backlight in the panel power control. */
+void intel_pps_backlight_on(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ intel_wakeref_t wakeref;
+
+ /*
+ * If we enable the backlight right away following a panel power
+ * on, we may see slight flicker as the panel syncs with the eDP
+ * link. So delay a bit to make sure the image is solid before
+ * allowing it to appear.
+ */
+ wait_backlight_on(intel_dp);
+
+ with_intel_pps_lock(intel_dp, wakeref) {
+ i915_reg_t pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+ u32 pp;
+
+ pp = ilk_get_pp_control(intel_dp);
+ pp |= EDP_BLC_ENABLE;
+
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+ }
+}
+
+/* Disable backlight in the panel power control. */
+void intel_pps_backlight_off(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ intel_wakeref_t wakeref;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ with_intel_pps_lock(intel_dp, wakeref) {
+ i915_reg_t pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
+ u32 pp;
+
+ pp = ilk_get_pp_control(intel_dp);
+ pp &= ~EDP_BLC_ENABLE;
+
+ intel_de_write(dev_priv, pp_ctrl_reg, pp);
+ intel_de_posting_read(dev_priv, pp_ctrl_reg);
+ }
+
+ intel_dp->pps.last_backlight_off = jiffies;
+ edp_wait_backlight_off(intel_dp);
+}
+
+/*
+ * Hook for controlling the panel power control backlight through the bl_power
+ * sysfs attribute. Take care to handle multiple calls.
+ */
+void intel_pps_backlight_power(struct intel_connector *connector, bool enable)
+{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_dp *intel_dp = intel_attached_dp(connector);
+ intel_wakeref_t wakeref;
+ bool is_enabled;
+
+ is_enabled = false;
+ with_intel_pps_lock(intel_dp, wakeref)
+ is_enabled = ilk_get_pp_control(intel_dp) & EDP_BLC_ENABLE;
+ if (is_enabled == enable)
+ return;
+
+ drm_dbg_kms(&i915->drm, "panel power control backlight %s\n",
+ enable ? "enable" : "disable");
+
+ if (enable)
+ intel_pps_backlight_on(intel_dp);
+ else
+ intel_pps_backlight_off(intel_dp);
+}
+
+static void vlv_detach_power_sequencer(struct intel_dp *intel_dp)
+{
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
+ enum pipe pipe = intel_dp->pps.pps_pipe;
+ i915_reg_t pp_on_reg = PP_ON_DELAYS(pipe);
+
+ drm_WARN_ON(&dev_priv->drm, intel_dp->pps.active_pipe != INVALID_PIPE);
+
+ if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
+ return;
+
+ intel_pps_vdd_off_sync_unlocked(intel_dp);
+
+ /*
+ * VLV seems to get confused when multiple power sequencers
+ * have the same port selected (even if only one has power/vdd
+ * enabled). The failure manifests as vlv_wait_port_ready() failing
+ * CHV on the other hand doesn't seem to mind having the same port
+ * selected in multiple power sequencers, but let's clear the
+ * port select always when logically disconnecting a power sequencer
+ * from a port.
+ */
+ drm_dbg_kms(&dev_priv->drm,
+ "detaching pipe %c power sequencer from [ENCODER:%d:%s]\n",
+ pipe_name(pipe), dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ intel_de_write(dev_priv, pp_on_reg, 0);
+ intel_de_posting_read(dev_priv, pp_on_reg);
+
+ intel_dp->pps.pps_pipe = INVALID_PIPE;
+}
+
+static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ struct intel_encoder *encoder;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ for_each_intel_dp(&dev_priv->drm, encoder) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ drm_WARN(&dev_priv->drm, intel_dp->pps.active_pipe == pipe,
+ "stealing pipe %c power sequencer from active [ENCODER:%d:%s]\n",
+ pipe_name(pipe), encoder->base.base.id,
+ encoder->base.name);
+
+ if (intel_dp->pps.pps_pipe != pipe)
+ continue;
+
+ drm_dbg_kms(&dev_priv->drm,
+ "stealing pipe %c power sequencer from [ENCODER:%d:%s]\n",
+ pipe_name(pipe), encoder->base.base.id,
+ encoder->base.name);
+
+ /* make sure vdd is off before we steal it */
+ vlv_detach_power_sequencer(intel_dp);
+ }
+}
+
+void vlv_pps_init(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ drm_WARN_ON(&dev_priv->drm, intel_dp->pps.active_pipe != INVALID_PIPE);
+
+ if (intel_dp->pps.pps_pipe != INVALID_PIPE &&
+ intel_dp->pps.pps_pipe != crtc->pipe) {
+ /*
+ * If another power sequencer was being used on this
+ * port previously make sure to turn off vdd there while
+ * we still have control of it.
+ */
+ vlv_detach_power_sequencer(intel_dp);
+ }
+
+ /*
+ * We may be stealing the power
+ * sequencer from another port.
+ */
+ vlv_steal_power_sequencer(dev_priv, crtc->pipe);
+
+ intel_dp->pps.active_pipe = crtc->pipe;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ /* now it's all ours */
+ intel_dp->pps.pps_pipe = crtc->pipe;
+
+ drm_dbg_kms(&dev_priv->drm,
+ "initializing pipe %c power sequencer for [ENCODER:%d:%s]\n",
+ pipe_name(intel_dp->pps.pps_pipe), encoder->base.base.id,
+ encoder->base.name);
+
+ /* init power sequencer on this pipe and port */
+ pps_init_delays(intel_dp);
+ pps_init_registers(intel_dp, true);
+}
+
+static void intel_pps_vdd_sanitize(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ if (!edp_have_panel_vdd(intel_dp))
+ return;
+
+ /*
+ * The VDD bit needs a power domain reference, so if the bit is
+ * already enabled when we boot or resume, grab this reference and
+ * schedule a vdd off, so we don't hold on to the reference
+ * indefinitely.
+ */
+ drm_dbg_kms(&dev_priv->drm,
+ "VDD left on by BIOS, adjusting state tracking\n");
+ drm_WARN_ON(&dev_priv->drm, intel_dp->pps.vdd_wakeref);
+ intel_dp->pps.vdd_wakeref = intel_display_power_get(dev_priv,
+ intel_aux_power_domain(dig_port));
+
+ edp_panel_vdd_schedule_off(intel_dp);
+}
+
+bool intel_pps_have_power(struct intel_dp *intel_dp)
+{
+ intel_wakeref_t wakeref;
+ bool have_power = false;
+
+ with_intel_pps_lock(intel_dp, wakeref) {
+ have_power = edp_have_panel_power(intel_dp) &&
+ edp_have_panel_vdd(intel_dp);
+ }
+
+ return have_power;
+}
+
+static void pps_init_timestamps(struct intel_dp *intel_dp)
+{
+ intel_dp->pps.panel_power_off_time = ktime_get_boottime();
+ intel_dp->pps.last_power_on = jiffies;
+ intel_dp->pps.last_backlight_off = jiffies;
+}
+
+static void
+intel_pps_readout_hw_state(struct intel_dp *intel_dp, struct edp_power_seq *seq)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ u32 pp_on, pp_off, pp_ctl;
+ struct pps_registers regs;
+
+ intel_pps_get_registers(intel_dp, &regs);
+
+ pp_ctl = ilk_get_pp_control(intel_dp);
+
+ /* Ensure PPS is unlocked */
+ if (!HAS_DDI(dev_priv))
+ intel_de_write(dev_priv, regs.pp_ctrl, pp_ctl);
+
+ pp_on = intel_de_read(dev_priv, regs.pp_on);
+ pp_off = intel_de_read(dev_priv, regs.pp_off);
+
+ /* Pull timing values out of registers */
+ seq->t1_t3 = REG_FIELD_GET(PANEL_POWER_UP_DELAY_MASK, pp_on);
+ seq->t8 = REG_FIELD_GET(PANEL_LIGHT_ON_DELAY_MASK, pp_on);
+ seq->t9 = REG_FIELD_GET(PANEL_LIGHT_OFF_DELAY_MASK, pp_off);
+ seq->t10 = REG_FIELD_GET(PANEL_POWER_DOWN_DELAY_MASK, pp_off);
+
+ if (i915_mmio_reg_valid(regs.pp_div)) {
+ u32 pp_div;
+
+ pp_div = intel_de_read(dev_priv, regs.pp_div);
+
+ seq->t11_t12 = REG_FIELD_GET(PANEL_POWER_CYCLE_DELAY_MASK, pp_div) * 1000;
+ } else {
+ seq->t11_t12 = REG_FIELD_GET(BXT_POWER_CYCLE_DELAY_MASK, pp_ctl) * 1000;
+ }
+}
+
+static void
+intel_pps_dump_state(const char *state_name, const struct edp_power_seq *seq)
+{
+ DRM_DEBUG_KMS("%s t1_t3 %d t8 %d t9 %d t10 %d t11_t12 %d\n",
+ state_name,
+ seq->t1_t3, seq->t8, seq->t9, seq->t10, seq->t11_t12);
+}
+
+static void
+intel_pps_verify_state(struct intel_dp *intel_dp)
+{
+ struct edp_power_seq hw;
+ struct edp_power_seq *sw = &intel_dp->pps.pps_delays;
+
+ intel_pps_readout_hw_state(intel_dp, &hw);
+
+ if (hw.t1_t3 != sw->t1_t3 || hw.t8 != sw->t8 || hw.t9 != sw->t9 ||
+ hw.t10 != sw->t10 || hw.t11_t12 != sw->t11_t12) {
+ DRM_ERROR("PPS state mismatch\n");
+ intel_pps_dump_state("sw", sw);
+ intel_pps_dump_state("hw", &hw);
+ }
+}
+
+static void pps_init_delays(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct edp_power_seq cur, vbt, spec,
+ *final = &intel_dp->pps.pps_delays;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ /* already initialized? */
+ if (final->t11_t12 != 0)
+ return;
+
+ intel_pps_readout_hw_state(intel_dp, &cur);
+
+ intel_pps_dump_state("cur", &cur);
+
+ vbt = dev_priv->vbt.edp.pps;
+ /* On Toshiba Satellite P50-C-18C system the VBT T12 delay
+ * of 500ms appears to be too short. Ocassionally the panel
+ * just fails to power back on. Increasing the delay to 800ms
+ * seems sufficient to avoid this problem.
+ */
+ if (dev_priv->quirks & QUIRK_INCREASE_T12_DELAY) {
+ vbt.t11_t12 = max_t(u16, vbt.t11_t12, 1300 * 10);
+ drm_dbg_kms(&dev_priv->drm,
+ "Increasing T12 panel delay as per the quirk to %d\n",
+ vbt.t11_t12);
+ }
+ /* T11_T12 delay is special and actually in units of 100ms, but zero
+ * based in the hw (so we need to add 100 ms). But the sw vbt
+ * table multiplies it with 1000 to make it in units of 100usec,
+ * too. */
+ vbt.t11_t12 += 100 * 10;
+
+ /* Upper limits from eDP 1.3 spec. Note that we use the clunky units of
+ * our hw here, which are all in 100usec. */
+ spec.t1_t3 = 210 * 10;
+ spec.t8 = 50 * 10; /* no limit for t8, use t7 instead */
+ spec.t9 = 50 * 10; /* no limit for t9, make it symmetric with t8 */
+ spec.t10 = 500 * 10;
+ /* This one is special and actually in units of 100ms, but zero
+ * based in the hw (so we need to add 100 ms). But the sw vbt
+ * table multiplies it with 1000 to make it in units of 100usec,
+ * too. */
+ spec.t11_t12 = (510 + 100) * 10;
+
+ intel_pps_dump_state("vbt", &vbt);
+
+ /* Use the max of the register settings and vbt. If both are
+ * unset, fall back to the spec limits. */
+#define assign_final(field) final->field = (max(cur.field, vbt.field) == 0 ? \
+ spec.field : \
+ max(cur.field, vbt.field))
+ assign_final(t1_t3);
+ assign_final(t8);
+ assign_final(t9);
+ assign_final(t10);
+ assign_final(t11_t12);
+#undef assign_final
+
+#define get_delay(field) (DIV_ROUND_UP(final->field, 10))
+ intel_dp->pps.panel_power_up_delay = get_delay(t1_t3);
+ intel_dp->pps.backlight_on_delay = get_delay(t8);
+ intel_dp->pps.backlight_off_delay = get_delay(t9);
+ intel_dp->pps.panel_power_down_delay = get_delay(t10);
+ intel_dp->pps.panel_power_cycle_delay = get_delay(t11_t12);
+#undef get_delay
+
+ drm_dbg_kms(&dev_priv->drm,
+ "panel power up delay %d, power down delay %d, power cycle delay %d\n",
+ intel_dp->pps.panel_power_up_delay,
+ intel_dp->pps.panel_power_down_delay,
+ intel_dp->pps.panel_power_cycle_delay);
+
+ drm_dbg_kms(&dev_priv->drm, "backlight on delay %d, off delay %d\n",
+ intel_dp->pps.backlight_on_delay,
+ intel_dp->pps.backlight_off_delay);
+
+ /*
+ * We override the HW backlight delays to 1 because we do manual waits
+ * on them. For T8, even BSpec recommends doing it. For T9, if we
+ * don't do this, we'll end up waiting for the backlight off delay
+ * twice: once when we do the manual sleep, and once when we disable
+ * the panel and wait for the PP_STATUS bit to become zero.
+ */
+ final->t8 = 1;
+ final->t9 = 1;
+
+ /*
+ * HW has only a 100msec granularity for t11_t12 so round it up
+ * accordingly.
+ */
+ final->t11_t12 = roundup(final->t11_t12, 100 * 10);
+}
+
+static void pps_init_registers(struct intel_dp *intel_dp, bool force_disable_vdd)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ u32 pp_on, pp_off, port_sel = 0;
+ int div = RUNTIME_INFO(dev_priv)->rawclk_freq / 1000;
+ struct pps_registers regs;
+ enum port port = dp_to_dig_port(intel_dp)->base.port;
+ const struct edp_power_seq *seq = &intel_dp->pps.pps_delays;
+
+ lockdep_assert_held(&dev_priv->pps_mutex);
+
+ intel_pps_get_registers(intel_dp, &regs);
+
+ /*
+ * On some VLV machines the BIOS can leave the VDD
+ * enabled even on power sequencers which aren't
+ * hooked up to any port. This would mess up the
+ * power domain tracking the first time we pick
+ * one of these power sequencers for use since
+ * intel_pps_vdd_on_unlocked() would notice that the VDD was
+ * already on and therefore wouldn't grab the power
+ * domain reference. Disable VDD first to avoid this.
+ * This also avoids spuriously turning the VDD on as
+ * soon as the new power sequencer gets initialized.
+ */
+ if (force_disable_vdd) {
+ u32 pp = ilk_get_pp_control(intel_dp);
+
+ drm_WARN(&dev_priv->drm, pp & PANEL_POWER_ON,
+ "Panel power already on\n");
+
+ if (pp & EDP_FORCE_VDD)
+ drm_dbg_kms(&dev_priv->drm,
+ "VDD already on, disabling first\n");
+
+ pp &= ~EDP_FORCE_VDD;
+
+ intel_de_write(dev_priv, regs.pp_ctrl, pp);
+ }
+
+ pp_on = REG_FIELD_PREP(PANEL_POWER_UP_DELAY_MASK, seq->t1_t3) |
+ REG_FIELD_PREP(PANEL_LIGHT_ON_DELAY_MASK, seq->t8);
+ pp_off = REG_FIELD_PREP(PANEL_LIGHT_OFF_DELAY_MASK, seq->t9) |
+ REG_FIELD_PREP(PANEL_POWER_DOWN_DELAY_MASK, seq->t10);
+
+ /* Haswell doesn't have any port selection bits for the panel
+ * power sequencer any more. */
+ if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+ port_sel = PANEL_PORT_SELECT_VLV(port);
+ } else if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv)) {
+ switch (port) {
+ case PORT_A:
+ port_sel = PANEL_PORT_SELECT_DPA;
+ break;
+ case PORT_C:
+ port_sel = PANEL_PORT_SELECT_DPC;
+ break;
+ case PORT_D:
+ port_sel = PANEL_PORT_SELECT_DPD;
+ break;
+ default:
+ MISSING_CASE(port);
+ break;
+ }
+ }
+
+ pp_on |= port_sel;
+
+ intel_de_write(dev_priv, regs.pp_on, pp_on);
+ intel_de_write(dev_priv, regs.pp_off, pp_off);
+
+ /*
+ * Compute the divisor for the pp clock, simply match the Bspec formula.
+ */
+ if (i915_mmio_reg_valid(regs.pp_div)) {
+ intel_de_write(dev_priv, regs.pp_div,
+ REG_FIELD_PREP(PP_REFERENCE_DIVIDER_MASK, (100 * div) / 2 - 1) | REG_FIELD_PREP(PANEL_POWER_CYCLE_DELAY_MASK, DIV_ROUND_UP(seq->t11_t12, 1000)));
+ } else {
+ u32 pp_ctl;
+
+ pp_ctl = intel_de_read(dev_priv, regs.pp_ctrl);
+ pp_ctl &= ~BXT_POWER_CYCLE_DELAY_MASK;
+ pp_ctl |= REG_FIELD_PREP(BXT_POWER_CYCLE_DELAY_MASK, DIV_ROUND_UP(seq->t11_t12, 1000));
+ intel_de_write(dev_priv, regs.pp_ctrl, pp_ctl);
+ }
+
+ drm_dbg_kms(&dev_priv->drm,
+ "panel power sequencer register settings: PP_ON %#x, PP_OFF %#x, PP_DIV %#x\n",
+ intel_de_read(dev_priv, regs.pp_on),
+ intel_de_read(dev_priv, regs.pp_off),
+ i915_mmio_reg_valid(regs.pp_div) ?
+ intel_de_read(dev_priv, regs.pp_div) :
+ (intel_de_read(dev_priv, regs.pp_ctrl) & BXT_POWER_CYCLE_DELAY_MASK));
+}
+
+void intel_pps_encoder_reset(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ intel_wakeref_t wakeref;
+
+ if (!intel_dp_is_edp(intel_dp))
+ return;
+
+ with_intel_pps_lock(intel_dp, wakeref) {
+ /*
+ * Reinit the power sequencer also on the resume path, in case
+ * BIOS did something nasty with it.
+ */
+ if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+ vlv_initial_power_sequencer_setup(intel_dp);
+
+ pps_init_delays(intel_dp);
+ pps_init_registers(intel_dp, false);
+
+ intel_pps_vdd_sanitize(intel_dp);
+ }
+}
+
+void intel_pps_init(struct intel_dp *intel_dp)
+{
+ INIT_DELAYED_WORK(&intel_dp->pps.panel_vdd_work, edp_panel_vdd_work);
+
+ pps_init_timestamps(intel_dp);
+
+ intel_pps_encoder_reset(intel_dp);
+}
+
+void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv)
+{
+ int pps_num;
+ int pps_idx;
+
+ if (HAS_DDI(dev_priv))
+ return;
+ /*
+ * This w/a is needed at least on CPT/PPT, but to be sure apply it
+ * everywhere where registers can be write protected.
+ */
+ if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+ pps_num = 2;
+ else
+ pps_num = 1;
+
+ for (pps_idx = 0; pps_idx < pps_num; pps_idx++) {
+ u32 val = intel_de_read(dev_priv, PP_CONTROL(pps_idx));
+
+ val = (val & ~PANEL_UNLOCK_MASK) | PANEL_UNLOCK_REGS;
+ intel_de_write(dev_priv, PP_CONTROL(pps_idx), val);
+ }
+}
+
+void intel_pps_setup(struct drm_i915_private *i915)
+{
+ if (HAS_PCH_SPLIT(i915) || IS_GEN9_LP(i915))
+ i915->pps_mmio_base = PCH_PPS_BASE;
+ else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+ i915->pps_mmio_base = VLV_PPS_BASE;
+ else
+ i915->pps_mmio_base = PPS_BASE;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_pps.h b/drivers/gpu/drm/i915/display/intel_pps.h
new file mode 100644
index 000000000000..fbbcca782e7b
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_pps.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef __INTEL_PPS_H__
+#define __INTEL_PPS_H__
+
+#include <linux/types.h>
+
+#include "intel_wakeref.h"
+
+struct drm_i915_private;
+struct intel_connector;
+struct intel_crtc_state;
+struct intel_dp;
+struct intel_encoder;
+
+intel_wakeref_t intel_pps_lock(struct intel_dp *intel_dp);
+intel_wakeref_t intel_pps_unlock(struct intel_dp *intel_dp, intel_wakeref_t wakeref);
+
+#define with_intel_pps_lock(dp, wf) \
+ for ((wf) = intel_pps_lock(dp); (wf); (wf) = intel_pps_unlock((dp), (wf)))
+
+void intel_pps_backlight_on(struct intel_dp *intel_dp);
+void intel_pps_backlight_off(struct intel_dp *intel_dp);
+void intel_pps_backlight_power(struct intel_connector *connector, bool enable);
+
+bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp);
+void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync);
+void intel_pps_on_unlocked(struct intel_dp *intel_dp);
+void intel_pps_off_unlocked(struct intel_dp *intel_dp);
+void intel_pps_check_power_unlocked(struct intel_dp *intel_dp);
+
+void intel_pps_vdd_on(struct intel_dp *intel_dp);
+void intel_pps_on(struct intel_dp *intel_dp);
+void intel_pps_off(struct intel_dp *intel_dp);
+void intel_pps_vdd_off_sync(struct intel_dp *intel_dp);
+bool intel_pps_have_power(struct intel_dp *intel_dp);
+void intel_pps_wait_power_cycle(struct intel_dp *intel_dp);
+
+void intel_pps_init(struct intel_dp *intel_dp);
+void intel_pps_encoder_reset(struct intel_dp *intel_dp);
+void intel_pps_reset_all(struct drm_i915_private *i915);
+
+void vlv_pps_init(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state);
+
+void intel_pps_unlock_regs_wa(struct drm_i915_private *i915);
+void intel_pps_setup(struct drm_i915_private *i915);
+
+#endif /* __INTEL_PPS_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index c24ae69426cf..850cb7f5b332 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -28,9 +28,10 @@
#include "i915_drv.h"
#include "intel_atomic.h"
#include "intel_display_types.h"
+#include "intel_dp_aux.h"
+#include "intel_hdmi.h"
#include "intel_psr.h"
#include "intel_sprite.h"
-#include "intel_hdmi.h"
/**
* DOC: Panel Self Refresh (PSR/SRD)
@@ -305,7 +306,7 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp)
drm_dbg_kms(&dev_priv->drm, "eDP panel supports PSR version %x\n",
intel_dp->psr_dpcd[0]);
- if (drm_dp_has_quirk(&intel_dp->desc, 0, DP_DPCD_QUIRK_NO_PSR)) {
+ if (drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_NO_PSR)) {
drm_dbg_kms(&dev_priv->drm,
"PSR support not currently available for this panel\n");
return;
@@ -811,6 +812,13 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
&crtc_state->hw.adjusted_mode;
int psr_setup_time;
+ /*
+ * Current PSR panels dont work reliably with VRR enabled
+ * So if VRR is enabled, do not enable PSR.
+ */
+ if (crtc_state->vrr.enable)
+ return;
+
if (!CAN_PSR(dev_priv))
return;
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index cf3589fd0ddb..9639d8fe32d7 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -50,6 +50,7 @@
#include "intel_dsi.h"
#include "intel_sprite.h"
#include "i9xx_plane.h"
+#include "intel_vrr.h"
int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
int usecs)
@@ -62,6 +63,16 @@ int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
1000 * adjusted_mode->crtc_htotal);
}
+static int intel_mode_vblank_start(const struct drm_display_mode *mode)
+{
+ int vblank_start = mode->crtc_vblank_start;
+
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ vblank_start = DIV_ROUND_UP(vblank_start, 2);
+
+ return vblank_start;
+}
+
/**
* intel_pipe_update_start() - start update of a set of display registers
* @new_crtc_state: the new crtc state
@@ -90,9 +101,10 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state)
if (new_crtc_state->uapi.async_flip)
return;
- vblank_start = adjusted_mode->crtc_vblank_start;
- if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
- vblank_start = DIV_ROUND_UP(vblank_start, 2);
+ if (new_crtc_state->vrr.enable)
+ vblank_start = intel_vrr_vmax_vblank_start(new_crtc_state);
+ else
+ vblank_start = intel_mode_vblank_start(adjusted_mode);
/* FIXME needs to be calibrated sensibly */
min = vblank_start - intel_usecs_to_scanlines(adjusted_mode,
@@ -258,6 +270,9 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
local_irq_enable();
+ /* Send VRR Push to terminate Vblank */
+ intel_vrr_send_push(new_crtc_state);
+
if (intel_vgpu_active(dev_priv))
return;
@@ -771,7 +786,8 @@ icl_program_input_csc(struct intel_plane *plane,
static void
skl_plane_async_flip(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
- const struct intel_plane_state *plane_state)
+ const struct intel_plane_state *plane_state,
+ bool async_flip)
{
struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
unsigned long irqflags;
@@ -782,6 +798,9 @@ skl_plane_async_flip(struct intel_plane *plane,
plane_ctl |= skl_plane_ctl_crtc(crtc_state);
+ if (async_flip)
+ plane_ctl |= PLANE_CTL_ASYNC_FLIP;
+
spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
@@ -867,6 +886,10 @@ skl_program_plane(struct intel_plane *plane,
if (fb->format->is_yuv && icl_is_hdr_plane(dev_priv, plane_id))
icl_program_input_csc(plane, crtc_state, plane_state);
+ if (fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC)
+ intel_uncore_write64_fw(&dev_priv->uncore,
+ PLANE_CC_VAL(pipe, plane_id), plane_state->ccval);
+
skl_write_plane_wm(plane, crtc_state);
intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id),
@@ -958,6 +981,28 @@ skl_plane_get_hw_state(struct intel_plane *plane,
return ret;
}
+static void
+skl_plane_enable_flip_done(struct intel_plane *plane)
+{
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
+ enum pipe pipe = plane->pipe;
+
+ spin_lock_irq(&i915->irq_lock);
+ bdw_enable_pipe_irq(i915, pipe, GEN9_PIPE_PLANE_FLIP_DONE(plane->id));
+ spin_unlock_irq(&i915->irq_lock);
+}
+
+static void
+skl_plane_disable_flip_done(struct intel_plane *plane)
+{
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
+ enum pipe pipe = plane->pipe;
+
+ spin_lock_irq(&i915->irq_lock);
+ bdw_disable_pipe_irq(i915, pipe, GEN9_PIPE_PLANE_FLIP_DONE(plane->id));
+ spin_unlock_irq(&i915->irq_lock);
+}
+
static void i9xx_plane_linear_gamma(u16 gamma[8])
{
/* The points are not evenly spaced. */
@@ -2366,7 +2411,8 @@ static int skl_plane_check_fb(const struct intel_crtc_state *crtc_state,
fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
- fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS)) {
+ fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
+ fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC)) {
drm_dbg_kms(&dev_priv->drm,
"Y/Yf tiling not supported in IF-ID mode\n");
return -EINVAL;
@@ -2856,6 +2902,7 @@ static const u64 skl_plane_format_modifiers_ccs[] = {
static const u64 gen12_plane_format_modifiers_mc_ccs[] = {
I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS,
I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS,
+ I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC,
I915_FORMAT_MOD_Y_TILED,
I915_FORMAT_MOD_X_TILED,
DRM_FORMAT_MOD_LINEAR,
@@ -2864,6 +2911,7 @@ static const u64 gen12_plane_format_modifiers_mc_ccs[] = {
static const u64 gen12_plane_format_modifiers_rc_ccs[] = {
I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS,
+ I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC,
I915_FORMAT_MOD_Y_TILED,
I915_FORMAT_MOD_X_TILED,
DRM_FORMAT_MOD_LINEAR,
@@ -3054,6 +3102,7 @@ static bool gen12_plane_format_mod_supported(struct drm_plane *_plane,
case I915_FORMAT_MOD_X_TILED:
case I915_FORMAT_MOD_Y_TILED:
case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+ case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
break;
default:
return false;
@@ -3290,7 +3339,13 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
plane->get_hw_state = skl_plane_get_hw_state;
plane->check_plane = skl_plane_check;
plane->min_cdclk = skl_plane_min_cdclk;
- plane->async_flip = skl_plane_async_flip;
+
+ if (plane_id == PLANE_PRIMARY) {
+ plane->need_async_flip_disable_wa = IS_GEN_RANGE(dev_priv, 9, 10);
+ plane->async_flip = skl_plane_async_flip;
+ plane->enable_flip_done = skl_plane_enable_flip_done;
+ plane->disable_flip_done = skl_plane_disable_flip_done;
+ }
if (INTEL_GEN(dev_priv) >= 11)
formats = icl_get_plane_formats(dev_priv, pipe,
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
new file mode 100644
index 000000000000..a9c2b2fd9252
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ *
+ */
+
+#include "i915_drv.h"
+#include "intel_display_types.h"
+#include "intel_vrr.h"
+
+bool intel_vrr_is_capable(struct drm_connector *connector)
+{
+ struct intel_dp *intel_dp;
+ const struct drm_display_info *info = &connector->display_info;
+ struct drm_i915_private *i915 = to_i915(connector->dev);
+
+ if (connector->connector_type != DRM_MODE_CONNECTOR_eDP &&
+ connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
+ return false;
+
+ intel_dp = intel_attached_dp(to_intel_connector(connector));
+ /*
+ * DP Sink is capable of VRR video timings if
+ * Ignore MSA bit is set in DPCD.
+ * EDID monitor range also should be atleast 10 for reasonable
+ * Adaptive Sync or Variable Refresh Rate end user experience.
+ */
+ return HAS_VRR(i915) &&
+ drm_dp_sink_can_do_video_without_timing_msa(intel_dp->dpcd) &&
+ info->monitor_range.max_vfreq - info->monitor_range.min_vfreq > 10;
+}
+
+void
+intel_vrr_check_modeset(struct intel_atomic_state *state)
+{
+ int i;
+ struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+ struct intel_crtc *crtc;
+
+ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+ new_crtc_state, i) {
+ if (new_crtc_state->uapi.vrr_enabled !=
+ old_crtc_state->uapi.vrr_enabled)
+ new_crtc_state->uapi.mode_changed = true;
+ }
+}
+
+/*
+ * Without VRR registers get latched at:
+ * vblank_start
+ *
+ * With VRR the earliest registers can get latched is:
+ * intel_vrr_vmin_vblank_start(), which if we want to maintain
+ * the correct min vtotal is >=vblank_start+1
+ *
+ * The latest point registers can get latched is the vmax decision boundary:
+ * intel_vrr_vmax_vblank_start()
+ *
+ * Between those two points the vblank exit starts (and hence registers get
+ * latched) ASAP after a push is sent.
+ *
+ * framestart_delay is programmable 0-3.
+ */
+static int intel_vrr_vblank_exit_length(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+
+ /* The hw imposes the extra scanline before frame start */
+ return crtc_state->vrr.pipeline_full + i915->framestart_delay + 1;
+}
+
+int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state)
+{
+ /* Min vblank actually determined by flipline that is always >=vmin+1 */
+ return crtc_state->vrr.vmin + 1 - intel_vrr_vblank_exit_length(crtc_state);
+}
+
+int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state)
+{
+ return crtc_state->vrr.vmax - intel_vrr_vblank_exit_length(crtc_state);
+}
+
+void
+intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ struct intel_connector *connector =
+ to_intel_connector(conn_state->connector);
+ struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+ const struct drm_display_info *info = &connector->base.display_info;
+ int vmin, vmax;
+
+ if (!intel_vrr_is_capable(&connector->base))
+ return;
+
+ if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
+ return;
+
+ if (!crtc_state->uapi.vrr_enabled)
+ return;
+
+ vmin = DIV_ROUND_UP(adjusted_mode->crtc_clock * 1000,
+ adjusted_mode->crtc_htotal * info->monitor_range.max_vfreq);
+ vmax = adjusted_mode->crtc_clock * 1000 /
+ (adjusted_mode->crtc_htotal * info->monitor_range.min_vfreq);
+
+ vmin = max_t(int, vmin, adjusted_mode->crtc_vtotal);
+ vmax = max_t(int, vmax, adjusted_mode->crtc_vtotal);
+
+ if (vmin >= vmax)
+ return;
+
+ /*
+ * flipline determines the min vblank length the hardware will
+ * generate, and flipline>=vmin+1, hence we reduce vmin by one
+ * to make sure we can get the actual min vblank length.
+ */
+ crtc_state->vrr.vmin = vmin - 1;
+ crtc_state->vrr.vmax = vmax;
+ crtc_state->vrr.enable = true;
+
+ crtc_state->vrr.flipline = crtc_state->vrr.vmin + 1;
+
+ /*
+ * FIXME: s/4/framestart_delay+1/ to get consistent
+ * earliest/latest points for register latching regardless
+ * of the framestart_delay used?
+ *
+ * FIXME: this really needs the extra scanline to provide consistent
+ * behaviour for all framestart_delay values. Otherwise with
+ * framestart_delay==3 we will end up extending the min vblank by
+ * one extra line.
+ */
+ crtc_state->vrr.pipeline_full =
+ min(255, crtc_state->vrr.vmin - adjusted_mode->crtc_vdisplay - 4 - 1);
+
+ crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
+}
+
+void intel_vrr_enable(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+ u32 trans_vrr_ctl;
+
+ if (!crtc_state->vrr.enable)
+ return;
+
+ trans_vrr_ctl = VRR_CTL_VRR_ENABLE |
+ VRR_CTL_IGN_MAX_SHIFT | VRR_CTL_FLIP_LINE_EN |
+ VRR_CTL_PIPELINE_FULL(crtc_state->vrr.pipeline_full) |
+ VRR_CTL_PIPELINE_FULL_OVERRIDE;
+
+ intel_de_write(dev_priv, TRANS_VRR_VMIN(cpu_transcoder), crtc_state->vrr.vmin - 1);
+ intel_de_write(dev_priv, TRANS_VRR_VMAX(cpu_transcoder), crtc_state->vrr.vmax - 1);
+ intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), trans_vrr_ctl);
+ intel_de_write(dev_priv, TRANS_VRR_FLIPLINE(cpu_transcoder), crtc_state->vrr.flipline - 1);
+ intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), TRANS_PUSH_EN);
+}
+
+void intel_vrr_send_push(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+
+ if (!crtc_state->vrr.enable)
+ return;
+
+ intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder),
+ TRANS_PUSH_EN | TRANS_PUSH_SEND);
+}
+
+void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder;
+
+ if (!old_crtc_state->vrr.enable)
+ return;
+
+ intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), 0);
+ intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), 0);
+}
+
+void intel_vrr_get_config(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+ u32 trans_vrr_ctl;
+
+ trans_vrr_ctl = intel_de_read(dev_priv, TRANS_VRR_CTL(cpu_transcoder));
+ crtc_state->vrr.enable = trans_vrr_ctl & VRR_CTL_VRR_ENABLE;
+ if (!crtc_state->vrr.enable)
+ return;
+
+ if (trans_vrr_ctl & VRR_CTL_PIPELINE_FULL_OVERRIDE)
+ crtc_state->vrr.pipeline_full = REG_FIELD_GET(VRR_CTL_PIPELINE_FULL_MASK, trans_vrr_ctl);
+ if (trans_vrr_ctl & VRR_CTL_FLIP_LINE_EN)
+ crtc_state->vrr.flipline = intel_de_read(dev_priv, TRANS_VRR_FLIPLINE(cpu_transcoder)) + 1;
+ crtc_state->vrr.vmax = intel_de_read(dev_priv, TRANS_VRR_VMAX(cpu_transcoder)) + 1;
+ crtc_state->vrr.vmin = intel_de_read(dev_priv, TRANS_VRR_VMIN(cpu_transcoder)) + 1;
+
+ crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h b/drivers/gpu/drm/i915/display/intel_vrr.h
new file mode 100644
index 000000000000..fac01bf4ab50
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_vrr.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_VRR_H__
+#define __INTEL_VRR_H__
+
+#include <linux/types.h>
+
+struct drm_connector;
+struct drm_connector_state;
+struct intel_atomic_state;
+struct intel_crtc;
+struct intel_crtc_state;
+struct intel_dp;
+struct intel_encoder;
+struct intel_crtc;
+
+bool intel_vrr_is_capable(struct drm_connector *connector);
+void intel_vrr_check_modeset(struct intel_atomic_state *state);
+void intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state);
+void intel_vrr_enable(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state);
+void intel_vrr_send_push(const struct intel_crtc_state *crtc_state);
+void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state);
+void intel_vrr_get_config(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state);
+int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state);
+int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state);
+
+#endif /* __INTEL_VRR_H__ */
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c
index 83c6ee6a509a..70f798405f7f 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c
@@ -31,6 +31,7 @@
#include "i915_gem_mman.h"
#include "i915_gem_object.h"
#include "i915_globals.h"
+#include "i915_memcpy.h"
#include "i915_trace.h"
static struct i915_global_object {
@@ -336,6 +337,70 @@ void __i915_gem_object_invalidate_frontbuffer(struct drm_i915_gem_object *obj,
}
}
+static void
+i915_gem_object_read_from_page_kmap(struct drm_i915_gem_object *obj, u64 offset, void *dst, int size)
+{
+ void *src_map;
+ void *src_ptr;
+
+ src_map = kmap_atomic(i915_gem_object_get_page(obj, offset >> PAGE_SHIFT));
+
+ src_ptr = src_map + offset_in_page(offset);
+ if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_READ))
+ drm_clflush_virt_range(src_ptr, size);
+ memcpy(dst, src_ptr, size);
+
+ kunmap_atomic(src_map);
+}
+
+static void
+i915_gem_object_read_from_page_iomap(struct drm_i915_gem_object *obj, u64 offset, void *dst, int size)
+{
+ void __iomem *src_map;
+ void __iomem *src_ptr;
+ dma_addr_t dma = i915_gem_object_get_dma_address(obj, offset >> PAGE_SHIFT);
+
+ src_map = io_mapping_map_wc(&obj->mm.region->iomap,
+ dma - obj->mm.region->region.start,
+ PAGE_SIZE);
+
+ src_ptr = src_map + offset_in_page(offset);
+ if (!i915_memcpy_from_wc(dst, (void __force *)src_ptr, size))
+ memcpy_fromio(dst, src_ptr, size);
+
+ io_mapping_unmap(src_map);
+}
+
+/**
+ * i915_gem_object_read_from_page - read data from the page of a GEM object
+ * @obj: GEM object to read from
+ * @offset: offset within the object
+ * @dst: buffer to store the read data
+ * @size: size to read
+ *
+ * Reads data from @obj at the specified offset. The requested region to read
+ * from can't cross a page boundary. The caller must ensure that @obj pages
+ * are pinned and that @obj is synced wrt. any related writes.
+ *
+ * Returns 0 on success or -ENODEV if the type of @obj's backing store is
+ * unsupported.
+ */
+int i915_gem_object_read_from_page(struct drm_i915_gem_object *obj, u64 offset, void *dst, int size)
+{
+ GEM_BUG_ON(offset >= obj->base.size);
+ GEM_BUG_ON(offset_in_page(offset) > PAGE_SIZE - size);
+ GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
+
+ if (i915_gem_object_has_struct_page(obj))
+ i915_gem_object_read_from_page_kmap(obj, offset, dst, size);
+ else if (i915_gem_object_has_iomem(obj))
+ i915_gem_object_read_from_page_iomap(obj, offset, dst, size);
+ else
+ return -ENODEV;
+
+ return 0;
+}
+
void i915_gem_init__objects(struct drm_i915_private *i915)
{
INIT_WORK(&i915->mm.free_work, __i915_gem_free_work);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 5274e9d139b4..d0ae834d787a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -219,6 +219,12 @@ i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj)
}
static inline bool
+i915_gem_object_has_iomem(const struct drm_i915_gem_object *obj)
+{
+ return i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_IOMEM);
+}
+
+static inline bool
i915_gem_object_is_shrinkable(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_IS_SHRINKABLE);
@@ -548,6 +554,8 @@ i915_gem_object_invalidate_frontbuffer(struct drm_i915_gem_object *obj,
__i915_gem_object_invalidate_frontbuffer(obj, origin);
}
+int i915_gem_object_read_from_page(struct drm_i915_gem_object *obj, u64 offset, void *dst, int size);
+
bool i915_gem_object_is_shmem(const struct drm_i915_gem_object *obj);
#endif
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f5666b44ea9d..b37b189e219c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -58,6 +58,7 @@
#include "display/intel_hotplug.h"
#include "display/intel_overlay.h"
#include "display/intel_pipe_crc.h"
+#include "display/intel_pps.h"
#include "display/intel_sprite.h"
#include "display/intel_vga.h"
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e3d58299b323..4cbc0bd85510 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1122,15 +1122,6 @@ struct drm_i915_private {
* crtc_state->wm.need_postvbl_update.
*/
struct mutex wm_mutex;
-
- /*
- * Set during HW readout of watermarks/DDB. Some platforms
- * need to know when we're still using BIOS-provided values
- * (which we don't fully trust).
- *
- * FIXME get rid of this.
- */
- bool distrust_bios_wm;
} wm;
struct dram_info {
@@ -1182,6 +1173,8 @@ struct drm_i915_private {
struct file *mmap_singleton;
} gem;
+ u8 framestart_delay;
+
u8 pch_ssc_use;
/* For i915gm/i945gm vblank irq workaround */
@@ -1758,10 +1751,17 @@ tgl_revids_get(struct drm_i915_private *dev_priv)
#define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0)
+#define HAS_VRR(i915) (INTEL_GEN(i915) >= 12)
+
/* Only valid when HAS_DISPLAY() is true */
#define INTEL_DISPLAY_ENABLED(dev_priv) \
(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
+static inline bool run_as_guest(void)
+{
+ return !hypervisor_is_type(X86_HYPER_NATIVE);
+}
+
static inline bool intel_vtd_active(void)
{
#ifdef CONFIG_INTEL_IOMMU
@@ -1770,7 +1770,7 @@ static inline bool intel_vtd_active(void)
#endif
/* Running as a guest, we assume the host is enforcing VT'd */
- return !hypervisor_is_type(X86_HYPER_NATIVE);
+ return run_as_guest();
}
static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index dd1971040bbc..5075f4ea2b23 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -718,25 +718,15 @@ u32 g4x_get_vblank_counter(struct drm_crtc *crtc)
return intel_uncore_read(&dev_priv->uncore, PIPE_FRMCOUNT_G4X(pipe));
}
-/*
- * On certain encoders on certain platforms, pipe
- * scanline register will not work to get the scanline,
- * since the timings are driven from the PORT or issues
- * with scanline register updates.
- * This function will use Framestamp and current
- * timestamp registers to calculate the scanline.
- */
-static u32 __intel_get_crtc_scanline_from_timestamp(struct intel_crtc *crtc)
+static u32 intel_crtc_scanlines_since_frame_timestamp(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct drm_vblank_crtc *vblank =
&crtc->base.dev->vblank[drm_crtc_index(&crtc->base)];
const struct drm_display_mode *mode = &vblank->hwmode;
- u32 vblank_start = mode->crtc_vblank_start;
- u32 vtotal = mode->crtc_vtotal;
u32 htotal = mode->crtc_htotal;
u32 clock = mode->crtc_clock;
- u32 scanline, scan_prev_time, scan_curr_time, scan_post_time;
+ u32 scan_prev_time, scan_curr_time, scan_post_time;
/*
* To avoid the race condition where we might cross into the
@@ -763,8 +753,28 @@ static u32 __intel_get_crtc_scanline_from_timestamp(struct intel_crtc *crtc)
PIPE_FRMTMSTMP(crtc->pipe));
} while (scan_post_time != scan_prev_time);
- scanline = div_u64(mul_u32_u32(scan_curr_time - scan_prev_time,
- clock), 1000 * htotal);
+ return div_u64(mul_u32_u32(scan_curr_time - scan_prev_time,
+ clock), 1000 * htotal);
+}
+
+/*
+ * On certain encoders on certain platforms, pipe
+ * scanline register will not work to get the scanline,
+ * since the timings are driven from the PORT or issues
+ * with scanline register updates.
+ * This function will use Framestamp and current
+ * timestamp registers to calculate the scanline.
+ */
+static u32 __intel_get_crtc_scanline_from_timestamp(struct intel_crtc *crtc)
+{
+ struct drm_vblank_crtc *vblank =
+ &crtc->base.dev->vblank[drm_crtc_index(&crtc->base)];
+ const struct drm_display_mode *mode = &vblank->hwmode;
+ u32 vblank_start = mode->crtc_vblank_start;
+ u32 vtotal = mode->crtc_vtotal;
+ u32 scanline;
+
+ scanline = intel_crtc_scanlines_since_frame_timestamp(crtc);
scanline = min(scanline, vtotal - 1);
scanline = (scanline + vblank_start) % vtotal;
@@ -883,7 +893,20 @@ static bool i915_get_crtc_scanoutpos(struct drm_crtc *_crtc,
if (stime)
*stime = ktime_get();
- if (use_scanline_counter) {
+ if (crtc->mode_flags & I915_MODE_FLAG_VRR) {
+ int scanlines = intel_crtc_scanlines_since_frame_timestamp(crtc);
+
+ position = __intel_get_crtc_scanline(crtc);
+
+ /*
+ * Already exiting vblank? If so, shift our position
+ * so it looks like we're already apporaching the full
+ * vblank end. This should make the generated timestamp
+ * more or less match when the active portion will start.
+ */
+ if (position >= vbl_start && scanlines < position)
+ position = min(crtc->vmax_vblank_start + scanlines, vtotal - 1);
+ } else if (use_scanline_counter) {
/* No obvious pixelcount register. Only query vertical
* scanout position from Display scan line register.
*/
@@ -2079,7 +2102,7 @@ static void ivb_display_irq_handler(struct drm_i915_private *dev_priv,
intel_opregion_asle_intr(dev_priv);
for_each_pipe(dev_priv, pipe) {
- if (de_iir & (DE_PIPE_VBLANK_IVB(pipe)))
+ if (de_iir & DE_PIPE_VBLANK_IVB(pipe))
intel_handle_vblank(dev_priv, pipe);
}
@@ -2822,19 +2845,6 @@ int bdw_enable_vblank(struct drm_crtc *crtc)
return 0;
}
-void skl_enable_flip_done(struct intel_crtc *crtc)
-{
- struct drm_i915_private *i915 = to_i915(crtc->base.dev);
- enum pipe pipe = crtc->pipe;
- unsigned long irqflags;
-
- spin_lock_irqsave(&i915->irq_lock, irqflags);
-
- bdw_enable_pipe_irq(i915, pipe, GEN9_PIPE_PLANE1_FLIP_DONE);
-
- spin_unlock_irqrestore(&i915->irq_lock, irqflags);
-}
-
/* Called from drm generic code, passed 'crtc' which
* we use as a pipe index
*/
@@ -2899,19 +2909,6 @@ void bdw_disable_vblank(struct drm_crtc *crtc)
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
-void skl_disable_flip_done(struct intel_crtc *crtc)
-{
- struct drm_i915_private *i915 = to_i915(crtc->base.dev);
- enum pipe pipe = crtc->pipe;
- unsigned long irqflags;
-
- spin_lock_irqsave(&i915->irq_lock, irqflags);
-
- bdw_disable_pipe_irq(i915, pipe, GEN9_PIPE_PLANE1_FLIP_DONE);
-
- spin_unlock_irqrestore(&i915->irq_lock, irqflags);
-}
-
static void ibx_irq_reset(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
diff --git a/drivers/gpu/drm/i915/i915_irq.h b/drivers/gpu/drm/i915/i915_irq.h
index 2efe609519ca..25f25cd95818 100644
--- a/drivers/gpu/drm/i915/i915_irq.h
+++ b/drivers/gpu/drm/i915/i915_irq.h
@@ -118,9 +118,6 @@ void i965_disable_vblank(struct drm_crtc *crtc);
void ilk_disable_vblank(struct drm_crtc *crtc);
void bdw_disable_vblank(struct drm_crtc *crtc);
-void skl_enable_flip_done(struct intel_crtc *crtc);
-void skl_disable_flip_done(struct intel_crtc *crtc);
-
void gen2_irq_reset(struct intel_uncore *uncore);
void gen3_irq_reset(struct intel_uncore *uncore, i915_reg_t imr,
i915_reg_t iir, i915_reg_t ier);
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 7f139ea4a90b..6939634e56ed 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -185,7 +185,7 @@ i915_param_named_unsafe(inject_probe_failure, uint, 0400,
i915_param_named(enable_dpcd_backlight, int, 0400,
"Enable support for DPCD backlight control"
- "(-1=use per-VBT LFP backlight type setting [default], 0=disabled, 1=enabled)");
+ "(-1=use per-VBT LFP backlight type setting [default], 0=disabled, 1=enable, 2=force VESA interface, 3=force Intel interface)");
#if IS_ENABLED(CONFIG_DRM_I915_GVT)
i915_param_named(enable_gvt, bool, 0400,
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1d8ba10847ca..e7e41a3c467e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4346,13 +4346,13 @@ enum {
#define _TRANS_VRR_CTL_B 0x61420
#define _TRANS_VRR_CTL_C 0x62420
#define _TRANS_VRR_CTL_D 0x63420
-#define TRANS_VRR_CTL(trans) _MMIO_TRANS2(trans, _TRANS_VRR_CTL_A)
-#define VRR_CTL_VRR_ENABLE REG_BIT(31)
-#define VRR_CTL_IGN_MAX_SHIFT REG_BIT(30)
-#define VRR_CTL_FLIP_LINE_EN REG_BIT(29)
-#define VRR_CTL_LINE_COUNT_MASK REG_GENMASK(10, 3)
-#define VRR_CTL_LINE_COUNT(x) REG_FIELD_PREP(VRR_CTL_LINE_COUNT_MASK, (x))
-#define VRR_CTL_SW_FULLLINE_COUNT REG_BIT(0)
+#define TRANS_VRR_CTL(trans) _MMIO_TRANS2(trans, _TRANS_VRR_CTL_A)
+#define VRR_CTL_VRR_ENABLE REG_BIT(31)
+#define VRR_CTL_IGN_MAX_SHIFT REG_BIT(30)
+#define VRR_CTL_FLIP_LINE_EN REG_BIT(29)
+#define VRR_CTL_PIPELINE_FULL_MASK REG_GENMASK(10, 3)
+#define VRR_CTL_PIPELINE_FULL(x) REG_FIELD_PREP(VRR_CTL_PIPELINE_FULL_MASK, (x))
+#define VRR_CTL_PIPELINE_FULL_OVERRIDE REG_BIT(0)
#define _TRANS_VRR_VMAX_A 0x60424
#define _TRANS_VRR_VMAX_B 0x61424
@@ -7070,6 +7070,8 @@ enum {
#define _PLANE_KEYMAX_1_A 0x701a0
#define _PLANE_KEYMAX_2_A 0x702a0
#define PLANE_KEYMAX_ALPHA(a) ((a) << 24)
+#define _PLANE_CC_VAL_1_A 0x701b4
+#define _PLANE_CC_VAL_2_A 0x702b4
#define _PLANE_AUX_DIST_1_A 0x701c0
#define _PLANE_AUX_DIST_2_A 0x702c0
#define _PLANE_AUX_OFFSET_1_A 0x701c4
@@ -7111,6 +7113,13 @@ enum {
#define _PLANE_NV12_BUF_CFG_1_A 0x70278
#define _PLANE_NV12_BUF_CFG_2_A 0x70378
+#define _PLANE_CC_VAL_1_B 0x711b4
+#define _PLANE_CC_VAL_2_B 0x712b4
+#define _PLANE_CC_VAL_1(pipe) _PIPE(pipe, _PLANE_CC_VAL_1_A, _PLANE_CC_VAL_1_B)
+#define _PLANE_CC_VAL_2(pipe) _PIPE(pipe, _PLANE_CC_VAL_2_A, _PLANE_CC_VAL_2_B)
+#define PLANE_CC_VAL(pipe, plane) \
+ _MMIO_PLANE(plane, _PLANE_CC_VAL_1(pipe), _PLANE_CC_VAL_2(pipe))
+
/* Input CSC Register Definitions */
#define _PLANE_INPUT_CSC_RY_GY_1_A 0x701E0
#define _PLANE_INPUT_CSC_RY_GY_2_A 0x702E0
@@ -9872,6 +9881,7 @@ enum skl_power_gate {
_PORTD_HDCP2_BASE, \
_PORTE_HDCP2_BASE, \
_PORTF_HDCP2_BASE) + (x))
+
#define PORT_HDCP2_AUTH(port) _PORT_HDCP2_BASE(port, 0x98)
#define _TRANSA_HDCP2_AUTH 0x66498
#define _TRANSB_HDCP2_AUTH 0x66598
@@ -9911,6 +9921,44 @@ enum skl_power_gate {
TRANS_HDCP2_STATUS(trans) : \
PORT_HDCP2_STATUS(port))
+#define _PIPEA_HDCP2_STREAM_STATUS 0x668C0
+#define _PIPEB_HDCP2_STREAM_STATUS 0x665C0
+#define _PIPEC_HDCP2_STREAM_STATUS 0x666C0
+#define _PIPED_HDCP2_STREAM_STATUS 0x667C0
+#define PIPE_HDCP2_STREAM_STATUS(pipe) _MMIO(_PICK((pipe), \
+ _PIPEA_HDCP2_STREAM_STATUS, \
+ _PIPEB_HDCP2_STREAM_STATUS, \
+ _PIPEC_HDCP2_STREAM_STATUS, \
+ _PIPED_HDCP2_STREAM_STATUS))
+
+#define _TRANSA_HDCP2_STREAM_STATUS 0x664C0
+#define _TRANSB_HDCP2_STREAM_STATUS 0x665C0
+#define TRANS_HDCP2_STREAM_STATUS(trans) _MMIO_TRANS(trans, \
+ _TRANSA_HDCP2_STREAM_STATUS, \
+ _TRANSB_HDCP2_STREAM_STATUS)
+#define STREAM_ENCRYPTION_STATUS BIT(31)
+#define STREAM_TYPE_STATUS BIT(30)
+#define HDCP2_STREAM_STATUS(dev_priv, trans, port) \
+ (INTEL_GEN(dev_priv) >= 12 ? \
+ TRANS_HDCP2_STREAM_STATUS(trans) : \
+ PIPE_HDCP2_STREAM_STATUS(pipe))
+
+#define _PORTA_HDCP2_AUTH_STREAM 0x66F00
+#define _PORTB_HDCP2_AUTH_STREAM 0x66F04
+#define PORT_HDCP2_AUTH_STREAM(port) _MMIO_PORT(port, \
+ _PORTA_HDCP2_AUTH_STREAM, \
+ _PORTB_HDCP2_AUTH_STREAM)
+#define _TRANSA_HDCP2_AUTH_STREAM 0x66F00
+#define _TRANSB_HDCP2_AUTH_STREAM 0x66F04
+#define TRANS_HDCP2_AUTH_STREAM(trans) _MMIO_TRANS(trans, \
+ _TRANSA_HDCP2_AUTH_STREAM, \
+ _TRANSB_HDCP2_AUTH_STREAM)
+#define AUTH_STREAM_TYPE BIT(31)
+#define HDCP2_AUTH_STREAM(dev_priv, trans, port) \
+ (INTEL_GEN(dev_priv) >= 12 ? \
+ TRANS_HDCP2_AUTH_STREAM(trans) : \
+ PORT_HDCP2_AUTH_STREAM(port))
+
/* Per-pipe DDI Function Control */
#define _TRANS_DDI_FUNC_CTL_A 0x60400
#define _TRANS_DDI_FUNC_CTL_B 0x61400
@@ -9960,6 +10008,7 @@ enum skl_power_gate {
#define TRANS_DDI_DP_VC_PAYLOAD_ALLOC (1 << 8)
#define TRANS_DDI_HDMI_SCRAMBLER_CTS_ENABLE (1 << 7)
#define TRANS_DDI_HDMI_SCRAMBLER_RESET_FREQ (1 << 6)
+#define TRANS_DDI_HDCP_SELECT REG_BIT(5)
#define TRANS_DDI_BFI_ENABLE (1 << 4)
#define TRANS_DDI_HIGH_TMDS_CHAR_RATE (1 << 4)
#define TRANS_DDI_HDMI_SCRAMBLING (1 << 0)
diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c
index f31c0dabd0cc..ecaf314d60b6 100644
--- a/drivers/gpu/drm/i915/intel_pch.c
+++ b/drivers/gpu/drm/i915/intel_pch.c
@@ -143,8 +143,9 @@ static bool intel_is_virt_pch(unsigned short id,
sdevice == PCI_SUBDEVICE_ID_QEMU));
}
-static unsigned short
-intel_virt_detect_pch(const struct drm_i915_private *dev_priv)
+static void
+intel_virt_detect_pch(const struct drm_i915_private *dev_priv,
+ unsigned short *pch_id, enum intel_pch *pch_type)
{
unsigned short id = 0;
@@ -181,12 +182,21 @@ intel_virt_detect_pch(const struct drm_i915_private *dev_priv)
else
drm_dbg_kms(&dev_priv->drm, "Assuming no PCH\n");
- return id;
+ *pch_type = intel_pch_type(dev_priv, id);
+
+ /* Sanity check virtual PCH id */
+ if (drm_WARN_ON(&dev_priv->drm,
+ id && *pch_type == PCH_NONE))
+ id = 0;
+
+ *pch_id = id;
}
void intel_detect_pch(struct drm_i915_private *dev_priv)
{
struct pci_dev *pch = NULL;
+ unsigned short id;
+ enum intel_pch pch_type;
/* DG1 has south engine display on the same PCI device */
if (IS_DG1(dev_priv)) {
@@ -206,9 +216,6 @@ void intel_detect_pch(struct drm_i915_private *dev_priv)
* of only checking the first one.
*/
while ((pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, pch))) {
- unsigned short id;
- enum intel_pch pch_type;
-
if (pch->vendor != PCI_VENDOR_ID_INTEL)
continue;
@@ -221,14 +228,7 @@ void intel_detect_pch(struct drm_i915_private *dev_priv)
break;
} else if (intel_is_virt_pch(id, pch->subsystem_vendor,
pch->subsystem_device)) {
- id = intel_virt_detect_pch(dev_priv);
- pch_type = intel_pch_type(dev_priv, id);
-
- /* Sanity check virtual PCH id */
- if (drm_WARN_ON(&dev_priv->drm,
- id && pch_type == PCH_NONE))
- id = 0;
-
+ intel_virt_detect_pch(dev_priv, &id, &pch_type);
dev_priv->pch_type = pch_type;
dev_priv->pch_id = id;
break;
@@ -244,10 +244,15 @@ void intel_detect_pch(struct drm_i915_private *dev_priv)
"Display disabled, reverting to NOP PCH\n");
dev_priv->pch_type = PCH_NOP;
dev_priv->pch_id = 0;
+ } else if (!pch) {
+ if (run_as_guest() && HAS_DISPLAY(dev_priv)) {
+ intel_virt_detect_pch(dev_priv, &id, &pch_type);
+ dev_priv->pch_type = pch_type;
+ dev_priv->pch_id = id;
+ } else {
+ drm_dbg_kms(&dev_priv->drm, "No PCH found.\n");
+ }
}
- if (!pch)
- drm_dbg_kms(&dev_priv->drm, "No PCH found.\n");
-
pci_dev_put(pch);
}
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index bbc73df7f753..1db7059af87f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4017,43 +4017,48 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
return 0;
}
-/*
- * Calculate initial DBuf slice offset, based on slice size
- * and mask(i.e if slice size is 1024 and second slice is enabled
- * offset would be 1024)
- */
-static unsigned int
-icl_get_first_dbuf_slice_offset(u32 dbuf_slice_mask,
- u32 slice_size,
- u32 ddb_size)
+static int intel_dbuf_size(struct drm_i915_private *dev_priv)
{
- unsigned int offset = 0;
+ int ddb_size = INTEL_INFO(dev_priv)->ddb_size;
- if (!dbuf_slice_mask)
- return 0;
+ drm_WARN_ON(&dev_priv->drm, ddb_size == 0);
- offset = (ffs(dbuf_slice_mask) - 1) * slice_size;
+ if (INTEL_GEN(dev_priv) < 11)
+ return ddb_size - 4; /* 4 blocks for bypass path allocation */
- WARN_ON(offset >= ddb_size);
- return offset;
+ return ddb_size;
}
-u16 intel_get_ddb_size(struct drm_i915_private *dev_priv)
+static int intel_dbuf_slice_size(struct drm_i915_private *dev_priv)
{
- u16 ddb_size = INTEL_INFO(dev_priv)->ddb_size;
- drm_WARN_ON(&dev_priv->drm, ddb_size == 0);
+ return intel_dbuf_size(dev_priv) /
+ INTEL_INFO(dev_priv)->num_supported_dbuf_slices;
+}
- if (INTEL_GEN(dev_priv) < 11)
- return ddb_size - 4; /* 4 blocks for bypass path allocation */
+static void
+skl_ddb_entry_for_slices(struct drm_i915_private *dev_priv, u8 slice_mask,
+ struct skl_ddb_entry *ddb)
+{
+ int slice_size = intel_dbuf_slice_size(dev_priv);
- return ddb_size;
+ if (!slice_mask) {
+ ddb->start = 0;
+ ddb->end = 0;
+ return;
+ }
+
+ ddb->start = (ffs(slice_mask) - 1) * slice_size;
+ ddb->end = fls(slice_mask) * slice_size;
+
+ WARN_ON(ddb->start >= ddb->end);
+ WARN_ON(ddb->end > intel_dbuf_size(dev_priv));
}
u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
const struct skl_ddb_entry *entry)
{
u32 slice_mask = 0;
- u16 ddb_size = intel_get_ddb_size(dev_priv);
+ u16 ddb_size = intel_dbuf_size(dev_priv);
u16 num_supported_slices = INTEL_INFO(dev_priv)->num_supported_dbuf_slices;
u16 slice_size = ddb_size / num_supported_slices;
u16 start_slice;
@@ -4077,116 +4082,40 @@ u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
return slice_mask;
}
-static u8 skl_compute_dbuf_slices(const struct intel_crtc_state *crtc_state,
- u8 active_pipes);
-
-static int
-skl_ddb_get_pipe_allocation_limits(struct drm_i915_private *dev_priv,
- const struct intel_crtc_state *crtc_state,
- const u64 total_data_rate,
- struct skl_ddb_entry *alloc, /* out */
- int *num_active /* out */)
-{
- struct drm_atomic_state *state = crtc_state->uapi.state;
- struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
- struct drm_crtc *for_crtc = crtc_state->uapi.crtc;
- const struct intel_crtc *crtc;
- u32 pipe_width = 0, total_width_in_range = 0, width_before_pipe_in_range = 0;
- enum pipe for_pipe = to_intel_crtc(for_crtc)->pipe;
- struct intel_dbuf_state *new_dbuf_state =
- intel_atomic_get_new_dbuf_state(intel_state);
- const struct intel_dbuf_state *old_dbuf_state =
- intel_atomic_get_old_dbuf_state(intel_state);
- u8 active_pipes = new_dbuf_state->active_pipes;
- u16 ddb_size;
- u32 ddb_range_size;
- u32 i;
- u32 dbuf_slice_mask;
- u32 offset;
- u32 slice_size;
- u32 total_slice_mask;
- u32 start, end;
- int ret;
-
- *num_active = hweight8(active_pipes);
-
- if (!crtc_state->hw.active) {
- alloc->start = 0;
- alloc->end = 0;
- return 0;
- }
-
- ddb_size = intel_get_ddb_size(dev_priv);
-
- slice_size = ddb_size / INTEL_INFO(dev_priv)->num_supported_dbuf_slices;
+static unsigned int intel_crtc_ddb_weight(const struct intel_crtc_state *crtc_state)
+{
+ const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+ int hdisplay, vdisplay;
- /*
- * If the state doesn't change the active CRTC's or there is no
- * modeset request, then there's no need to recalculate;
- * the existing pipe allocation limits should remain unchanged.
- * Note that we're safe from racing commits since any racing commit
- * that changes the active CRTC list or do modeset would need to
- * grab _all_ crtc locks, including the one we currently hold.
- */
- if (old_dbuf_state->active_pipes == new_dbuf_state->active_pipes &&
- !dev_priv->wm.distrust_bios_wm) {
- /*
- * alloc may be cleared by clear_intel_crtc_state,
- * copy from old state to be sure
- *
- * FIXME get rid of this mess
- */
- *alloc = to_intel_crtc_state(for_crtc->state)->wm.skl.ddb;
+ if (!crtc_state->hw.active)
return 0;
- }
-
- /*
- * Get allowed DBuf slices for correspondent pipe and platform.
- */
- dbuf_slice_mask = skl_compute_dbuf_slices(crtc_state, active_pipes);
-
- /*
- * Figure out at which DBuf slice we start, i.e if we start at Dbuf S2
- * and slice size is 1024, the offset would be 1024
- */
- offset = icl_get_first_dbuf_slice_offset(dbuf_slice_mask,
- slice_size, ddb_size);
-
- /*
- * Figure out total size of allowed DBuf slices, which is basically
- * a number of allowed slices for that pipe multiplied by slice size.
- * Inside of this
- * range ddb entries are still allocated in proportion to display width.
- */
- ddb_range_size = hweight8(dbuf_slice_mask) * slice_size;
/*
* Watermark/ddb requirement highly depends upon width of the
* framebuffer, So instead of allocating DDB equally among pipes
* distribute DDB based on resolution/width of the display.
*/
- total_slice_mask = dbuf_slice_mask;
- for_each_new_intel_crtc_in_state(intel_state, crtc, crtc_state, i) {
- const struct drm_display_mode *pipe_mode =
- &crtc_state->hw.pipe_mode;
- enum pipe pipe = crtc->pipe;
- int hdisplay, vdisplay;
- u32 pipe_dbuf_slice_mask;
+ drm_mode_get_hv_timing(pipe_mode, &hdisplay, &vdisplay);
- if (!crtc_state->hw.active)
- continue;
+ return hdisplay;
+}
- pipe_dbuf_slice_mask = skl_compute_dbuf_slices(crtc_state,
- active_pipes);
+static void intel_crtc_dbuf_weights(const struct intel_dbuf_state *dbuf_state,
+ enum pipe for_pipe,
+ unsigned int *weight_start,
+ unsigned int *weight_end,
+ unsigned int *weight_total)
+{
+ struct drm_i915_private *dev_priv =
+ to_i915(dbuf_state->base.state->base.dev);
+ enum pipe pipe;
- /*
- * According to BSpec pipe can share one dbuf slice with another
- * pipes or pipe can use multiple dbufs, in both cases we
- * account for other pipes only if they have exactly same mask.
- * However we need to account how many slices we should enable
- * in total.
- */
- total_slice_mask |= pipe_dbuf_slice_mask;
+ *weight_start = 0;
+ *weight_end = 0;
+ *weight_total = 0;
+
+ for_each_pipe(dev_priv, pipe) {
+ int weight = dbuf_state->weight[pipe];
/*
* Do not account pipes using other slice sets
@@ -4195,42 +4124,78 @@ skl_ddb_get_pipe_allocation_limits(struct drm_i915_private *dev_priv,
* i.e no partial intersection), so it is enough to check for
* equality for now.
*/
- if (dbuf_slice_mask != pipe_dbuf_slice_mask)
+ if (dbuf_state->slices[pipe] != dbuf_state->slices[for_pipe])
continue;
- drm_mode_get_hv_timing(pipe_mode, &hdisplay, &vdisplay);
+ *weight_total += weight;
+ if (pipe < for_pipe) {
+ *weight_start += weight;
+ *weight_end += weight;
+ } else if (pipe == for_pipe) {
+ *weight_end += weight;
+ }
+ }
+}
- total_width_in_range += hdisplay;
+static int
+skl_crtc_allocate_ddb(struct intel_atomic_state *state, struct intel_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ unsigned int weight_total, weight_start, weight_end;
+ const struct intel_dbuf_state *old_dbuf_state =
+ intel_atomic_get_old_dbuf_state(state);
+ struct intel_dbuf_state *new_dbuf_state =
+ intel_atomic_get_new_dbuf_state(state);
+ struct intel_crtc_state *crtc_state;
+ struct skl_ddb_entry ddb_slices;
+ enum pipe pipe = crtc->pipe;
+ u32 ddb_range_size;
+ u32 dbuf_slice_mask;
+ u32 start, end;
+ int ret;
- if (pipe < for_pipe)
- width_before_pipe_in_range += hdisplay;
- else if (pipe == for_pipe)
- pipe_width = hdisplay;
+ if (new_dbuf_state->weight[pipe] == 0) {
+ new_dbuf_state->ddb[pipe].start = 0;
+ new_dbuf_state->ddb[pipe].end = 0;
+ goto out;
}
- /*
- * FIXME: For now we always enable slice S1 as per
- * the Bspec display initialization sequence.
- */
- new_dbuf_state->enabled_slices = total_slice_mask | BIT(DBUF_S1);
+ dbuf_slice_mask = new_dbuf_state->slices[pipe];
- if (old_dbuf_state->enabled_slices != new_dbuf_state->enabled_slices) {
- ret = intel_atomic_serialize_global_state(&new_dbuf_state->base);
- if (ret)
- return ret;
- }
+ skl_ddb_entry_for_slices(dev_priv, dbuf_slice_mask, &ddb_slices);
+ ddb_range_size = skl_ddb_entry_size(&ddb_slices);
+
+ intel_crtc_dbuf_weights(new_dbuf_state, pipe,
+ &weight_start, &weight_end, &weight_total);
+
+ start = ddb_range_size * weight_start / weight_total;
+ end = ddb_range_size * weight_end / weight_total;
+
+ new_dbuf_state->ddb[pipe].start = ddb_slices.start + start;
+ new_dbuf_state->ddb[pipe].end = ddb_slices.start + end;
+
+out:
+ if (skl_ddb_entry_equal(&old_dbuf_state->ddb[pipe],
+ &new_dbuf_state->ddb[pipe]))
+ return 0;
+
+ ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
+ if (ret)
+ return ret;
- start = ddb_range_size * width_before_pipe_in_range / total_width_in_range;
- end = ddb_range_size *
- (width_before_pipe_in_range + pipe_width) / total_width_in_range;
+ crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
- alloc->start = offset + start;
- alloc->end = offset + end;
+ crtc_state->wm.skl.ddb = new_dbuf_state->ddb[pipe];
drm_dbg_kms(&dev_priv->drm,
- "[CRTC:%d:%s] dbuf slices 0x%x, ddb (%d - %d), active pipes 0x%x\n",
- for_crtc->base.id, for_crtc->name,
- dbuf_slice_mask, alloc->start, alloc->end, active_pipes);
+ "[CRTC:%d:%s] dbuf slices 0x%x -> 0x%x, ddb (%d - %d) -> (%d - %d), active pipes 0x%x -> 0x%x\n",
+ crtc->base.base.id, crtc->base.name,
+ old_dbuf_state->slices[pipe], new_dbuf_state->slices[pipe],
+ old_dbuf_state->ddb[pipe].start, old_dbuf_state->ddb[pipe].end,
+ new_dbuf_state->ddb[pipe].start, new_dbuf_state->ddb[pipe].end,
+ old_dbuf_state->active_pipes, new_dbuf_state->active_pipes);
return 0;
}
@@ -4632,10 +4597,8 @@ static u8 tgl_compute_dbuf_slices(enum pipe pipe, u8 active_pipes)
return compute_dbuf_slices(pipe, active_pipes, tgl_allowed_dbufs);
}
-static u8 skl_compute_dbuf_slices(const struct intel_crtc_state *crtc_state,
- u8 active_pipes)
+static u8 skl_compute_dbuf_slices(struct intel_crtc *crtc, u8 active_pipes)
{
- struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
@@ -4798,55 +4761,30 @@ skl_plane_wm_level(const struct intel_crtc_state *crtc_state,
}
static int
-skl_allocate_pipe_ddb(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
+skl_allocate_plane_ddb(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- struct skl_ddb_entry *alloc = &crtc_state->wm.skl.ddb;
+ const struct intel_dbuf_state *dbuf_state =
+ intel_atomic_get_new_dbuf_state(state);
+ const struct skl_ddb_entry *alloc = &dbuf_state->ddb[crtc->pipe];
+ int num_active = hweight8(dbuf_state->active_pipes);
u16 alloc_size, start = 0;
u16 total[I915_MAX_PLANES] = {};
u16 uv_total[I915_MAX_PLANES] = {};
u64 total_data_rate;
enum plane_id plane_id;
- int num_active;
u32 blocks;
int level;
- int ret;
/* Clear the partitioning for disabled planes. */
memset(crtc_state->wm.skl.plane_ddb_y, 0, sizeof(crtc_state->wm.skl.plane_ddb_y));
memset(crtc_state->wm.skl.plane_ddb_uv, 0, sizeof(crtc_state->wm.skl.plane_ddb_uv));
- if (!crtc_state->hw.active) {
- struct intel_atomic_state *state =
- to_intel_atomic_state(crtc_state->uapi.state);
- struct intel_dbuf_state *new_dbuf_state =
- intel_atomic_get_new_dbuf_state(state);
- const struct intel_dbuf_state *old_dbuf_state =
- intel_atomic_get_old_dbuf_state(state);
-
- /*
- * FIXME hack to make sure we compute this sensibly when
- * turning off all the pipes. Otherwise we leave it at
- * whatever we had previously, and then runtime PM will
- * mess it up by turning off all but S1. Remove this
- * once the dbuf state computation flow becomes sane.
- */
- if (new_dbuf_state->active_pipes == 0) {
- new_dbuf_state->enabled_slices = BIT(DBUF_S1);
-
- if (old_dbuf_state->enabled_slices != new_dbuf_state->enabled_slices) {
- ret = intel_atomic_serialize_global_state(&new_dbuf_state->base);
- if (ret)
- return ret;
- }
- }
-
- alloc->start = alloc->end = 0;
+ if (!crtc_state->hw.active)
return 0;
- }
if (INTEL_GEN(dev_priv) >= 11)
total_data_rate =
@@ -4855,12 +4793,6 @@ skl_allocate_pipe_ddb(struct intel_atomic_state *state,
total_data_rate =
skl_get_total_relative_data_rate(state, crtc);
- ret = skl_ddb_get_pipe_allocation_limits(dev_priv, crtc_state,
- total_data_rate,
- alloc, &num_active);
- if (ret)
- return ret;
-
alloc_size = skl_ddb_entry_size(alloc);
if (alloc_size == 0)
return 0;
@@ -5731,6 +5663,18 @@ static bool skl_ddb_entries_overlap(const struct skl_ddb_entry *a,
return a->start < b->end && b->start < a->end;
}
+static void skl_ddb_entry_union(struct skl_ddb_entry *a,
+ const struct skl_ddb_entry *b)
+{
+ if (a->end && b->end) {
+ a->start = min(a->start, b->start);
+ a->end = max(a->end, b->end);
+ } else if (b->end) {
+ a->start = b->start;
+ a->end = b->end;
+ }
+}
+
bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
const struct skl_ddb_entry *entries,
int num_entries, int ignore_idx)
@@ -5775,39 +5719,114 @@ skl_ddb_add_affected_planes(const struct intel_crtc_state *old_crtc_state,
return 0;
}
+static u8 intel_dbuf_enabled_slices(const struct intel_dbuf_state *dbuf_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(dbuf_state->base.state->base.dev);
+ u8 enabled_slices;
+ enum pipe pipe;
+
+ /*
+ * FIXME: For now we always enable slice S1 as per
+ * the Bspec display initialization sequence.
+ */
+ enabled_slices = BIT(DBUF_S1);
+
+ for_each_pipe(dev_priv, pipe)
+ enabled_slices |= dbuf_state->slices[pipe];
+
+ return enabled_slices;
+}
+
static int
skl_compute_ddb(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
const struct intel_dbuf_state *old_dbuf_state;
- const struct intel_dbuf_state *new_dbuf_state;
+ struct intel_dbuf_state *new_dbuf_state = NULL;
const struct intel_crtc_state *old_crtc_state;
struct intel_crtc_state *new_crtc_state;
struct intel_crtc *crtc;
int ret, i;
- for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
- new_crtc_state, i) {
- ret = skl_allocate_pipe_ddb(state, crtc);
+ for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+ new_dbuf_state = intel_atomic_get_dbuf_state(state);
+ if (IS_ERR(new_dbuf_state))
+ return PTR_ERR(new_dbuf_state);
+
+ old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
+ break;
+ }
+
+ if (!new_dbuf_state)
+ return 0;
+
+ new_dbuf_state->active_pipes =
+ intel_calc_active_pipes(state, old_dbuf_state->active_pipes);
+
+ if (old_dbuf_state->active_pipes != new_dbuf_state->active_pipes) {
+ ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
if (ret)
return ret;
+ }
- ret = skl_ddb_add_affected_planes(old_crtc_state,
- new_crtc_state);
+ for_each_intel_crtc(&dev_priv->drm, crtc) {
+ enum pipe pipe = crtc->pipe;
+
+ new_dbuf_state->slices[pipe] =
+ skl_compute_dbuf_slices(crtc, new_dbuf_state->active_pipes);
+
+ if (old_dbuf_state->slices[pipe] == new_dbuf_state->slices[pipe])
+ continue;
+
+ ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
if (ret)
return ret;
}
- old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
- new_dbuf_state = intel_atomic_get_new_dbuf_state(state);
+ new_dbuf_state->enabled_slices = intel_dbuf_enabled_slices(new_dbuf_state);
+
+ if (old_dbuf_state->enabled_slices != new_dbuf_state->enabled_slices) {
+ ret = intel_atomic_serialize_global_state(&new_dbuf_state->base);
+ if (ret)
+ return ret;
- if (new_dbuf_state &&
- new_dbuf_state->enabled_slices != old_dbuf_state->enabled_slices)
drm_dbg_kms(&dev_priv->drm,
"Enabled dbuf slices 0x%x -> 0x%x (out of %d dbuf slices)\n",
old_dbuf_state->enabled_slices,
new_dbuf_state->enabled_slices,
INTEL_INFO(dev_priv)->num_supported_dbuf_slices);
+ }
+
+ for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+ enum pipe pipe = crtc->pipe;
+
+ new_dbuf_state->weight[pipe] = intel_crtc_ddb_weight(new_crtc_state);
+
+ if (old_dbuf_state->weight[pipe] == new_dbuf_state->weight[pipe])
+ continue;
+
+ ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
+ if (ret)
+ return ret;
+ }
+
+ for_each_intel_crtc(&dev_priv->drm, crtc) {
+ ret = skl_crtc_allocate_ddb(state, crtc);
+ if (ret)
+ return ret;
+ }
+
+ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+ new_crtc_state, i) {
+ ret = skl_allocate_plane_ddb(state, crtc);
+ if (ret)
+ return ret;
+
+ ret = skl_ddb_add_affected_planes(old_crtc_state,
+ new_crtc_state);
+ if (ret)
+ return ret;
+ }
return 0;
}
@@ -5944,83 +5963,6 @@ skl_print_wm_changes(struct intel_atomic_state *state)
}
}
-static int intel_add_affected_pipes(struct intel_atomic_state *state,
- u8 pipe_mask)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_crtc *crtc;
-
- for_each_intel_crtc(&dev_priv->drm, crtc) {
- struct intel_crtc_state *crtc_state;
-
- if ((pipe_mask & BIT(crtc->pipe)) == 0)
- continue;
-
- crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
- if (IS_ERR(crtc_state))
- return PTR_ERR(crtc_state);
- }
-
- return 0;
-}
-
-static int
-skl_ddb_add_affected_pipes(struct intel_atomic_state *state)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_crtc_state *crtc_state;
- struct intel_crtc *crtc;
- int i, ret;
-
- if (dev_priv->wm.distrust_bios_wm) {
- /*
- * skl_ddb_get_pipe_allocation_limits() currently requires
- * all active pipes to be included in the state so that
- * it can redistribute the dbuf among them, and it really
- * wants to recompute things when distrust_bios_wm is set
- * so we add all the pipes to the state.
- */
- ret = intel_add_affected_pipes(state, ~0);
- if (ret)
- return ret;
- }
-
- for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
- struct intel_dbuf_state *new_dbuf_state;
- const struct intel_dbuf_state *old_dbuf_state;
-
- new_dbuf_state = intel_atomic_get_dbuf_state(state);
- if (IS_ERR(new_dbuf_state))
- return PTR_ERR(new_dbuf_state);
-
- old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
-
- new_dbuf_state->active_pipes =
- intel_calc_active_pipes(state, old_dbuf_state->active_pipes);
-
- if (old_dbuf_state->active_pipes == new_dbuf_state->active_pipes)
- break;
-
- ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
- if (ret)
- return ret;
-
- /*
- * skl_ddb_get_pipe_allocation_limits() currently requires
- * all active pipes to be included in the state so that
- * it can redistribute the dbuf among them.
- */
- ret = intel_add_affected_pipes(state,
- new_dbuf_state->active_pipes);
- if (ret)
- return ret;
-
- break;
- }
-
- return 0;
-}
-
/*
* To make sure the cursor watermark registers are always consistent
* with our computed state the following scenario needs special
@@ -6088,15 +6030,6 @@ skl_compute_wm(struct intel_atomic_state *state)
struct intel_crtc_state *new_crtc_state;
int ret, i;
- ret = skl_ddb_add_affected_pipes(state);
- if (ret)
- return ret;
-
- /*
- * Calculate WM's for all pipes that are part of this transaction.
- * Note that skl_ddb_add_affected_pipes may have added more CRTC's that
- * weren't otherwise being modified if pipe allocations had to change.
- */
for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
ret = skl_build_pipe_wm(state, crtc);
if (ret)
@@ -6255,20 +6188,49 @@ void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
void skl_wm_get_hw_state(struct drm_i915_private *dev_priv)
{
+ struct intel_dbuf_state *dbuf_state =
+ to_intel_dbuf_state(dev_priv->dbuf.obj.state);
struct intel_crtc *crtc;
- struct intel_crtc_state *crtc_state;
for_each_intel_crtc(&dev_priv->drm, crtc) {
- crtc_state = to_intel_crtc_state(crtc->base.state);
+ struct intel_crtc_state *crtc_state =
+ to_intel_crtc_state(crtc->base.state);
+ enum pipe pipe = crtc->pipe;
+ enum plane_id plane_id;
skl_pipe_wm_get_hw_state(crtc, &crtc_state->wm.skl.optimal);
crtc_state->wm.skl.raw = crtc_state->wm.skl.optimal;
- }
- if (dev_priv->active_pipes) {
- /* Fully recompute DDB on first atomic commit */
- dev_priv->wm.distrust_bios_wm = true;
+ memset(&dbuf_state->ddb[pipe], 0, sizeof(dbuf_state->ddb[pipe]));
+
+ for_each_plane_id_on_crtc(crtc, plane_id) {
+ struct skl_ddb_entry *ddb_y =
+ &crtc_state->wm.skl.plane_ddb_y[plane_id];
+ struct skl_ddb_entry *ddb_uv =
+ &crtc_state->wm.skl.plane_ddb_uv[plane_id];
+
+ skl_ddb_get_hw_plane_state(dev_priv, crtc->pipe,
+ plane_id, ddb_y, ddb_uv);
+
+ skl_ddb_entry_union(&dbuf_state->ddb[pipe], ddb_y);
+ skl_ddb_entry_union(&dbuf_state->ddb[pipe], ddb_uv);
+ }
+
+ dbuf_state->slices[pipe] =
+ skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes);
+
+ dbuf_state->weight[pipe] = intel_crtc_ddb_weight(crtc_state);
+
+ crtc_state->wm.skl.ddb = dbuf_state->ddb[pipe];
+
+ drm_dbg_kms(&dev_priv->drm,
+ "[CRTC:%d:%s] dbuf slices 0x%x, ddb (%d - %d), active pipes 0x%x\n",
+ crtc->base.base.id, crtc->base.name,
+ dbuf_state->slices[pipe], dbuf_state->ddb[pipe].start,
+ dbuf_state->ddb[pipe].end, dbuf_state->active_pipes);
}
+
+ dbuf_state->enabled_slices = dev_priv->dbuf.enabled_slices;
}
static void ilk_pipe_wm_get_hw_state(struct intel_crtc *crtc)
@@ -7103,24 +7065,26 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv)
0, CNL_DELAY_PMRSP);
}
-static void tgl_init_clock_gating(struct drm_i915_private *dev_priv)
+static void gen12lp_init_clock_gating(struct drm_i915_private *dev_priv)
{
- /* Wa_1409120013:tgl */
+ /* Wa_1409120013:tgl,rkl,adl_s,dg1 */
intel_uncore_write(&dev_priv->uncore, ILK_DPFC_CHICKEN,
- ILK_DPFC_CHICKEN_COMP_DUMMY_PIXEL);
+ ILK_DPFC_CHICKEN_COMP_DUMMY_PIXEL);
/* Wa_1409825376:tgl (pre-prod)*/
if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B1))
intel_uncore_write(&dev_priv->uncore, GEN9_CLKGATE_DIS_3, intel_uncore_read(&dev_priv->uncore, GEN9_CLKGATE_DIS_3) |
TGL_VRH_GATING_DIS);
- /* Wa_14011059788:tgl */
+ /* Wa_14011059788:tgl,rkl,adl_s,dg1 */
intel_uncore_rmw(&dev_priv->uncore, GEN10_DFR_RATIO_EN_AND_CHICKEN,
0, DFR_DISABLE);
}
static void dg1_init_clock_gating(struct drm_i915_private *dev_priv)
{
+ gen12lp_init_clock_gating(dev_priv);
+
/* Wa_1409836686:dg1[a0] */
if (IS_DG1_REVID(dev_priv, DG1_REVID_A0, DG1_REVID_A0))
intel_uncore_write(&dev_priv->uncore, GEN9_CLKGATE_DIS_3, intel_uncore_read(&dev_priv->uncore, GEN9_CLKGATE_DIS_3) |
@@ -7583,7 +7547,7 @@ void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
if (IS_DG1(dev_priv))
dev_priv->display.init_clock_gating = dg1_init_clock_gating;
else if (IS_GEN(dev_priv, 12))
- dev_priv->display.init_clock_gating = tgl_init_clock_gating;
+ dev_priv->display.init_clock_gating = gen12lp_init_clock_gating;
else if (IS_GEN(dev_priv, 11))
dev_priv->display.init_clock_gating = icl_init_clock_gating;
else if (IS_CANNONLAKE(dev_priv))
diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
index eab83e251dd5..97550cf0b6df 100644
--- a/drivers/gpu/drm/i915/intel_pm.h
+++ b/drivers/gpu/drm/i915/intel_pm.h
@@ -9,8 +9,10 @@
#include <linux/types.h>
#include "display/intel_bw.h"
+#include "display/intel_display.h"
#include "display/intel_global_state.h"
+#include "i915_drv.h"
#include "i915_reg.h"
struct drm_device;
@@ -40,7 +42,6 @@ void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
struct skl_ddb_entry *ddb_y,
struct skl_ddb_entry *ddb_uv);
void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv);
-u16 intel_get_ddb_size(struct drm_i915_private *dev_priv);
u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
const struct skl_ddb_entry *entry);
void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
@@ -69,6 +70,10 @@ bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv, bool enable);
struct intel_dbuf_state {
struct intel_global_state base;
+ struct skl_ddb_entry ddb[I915_MAX_PIPES];
+ unsigned int weight[I915_MAX_PIPES];
+ u8 slices[I915_MAX_PIPES];
+
u8 enabled_slices;
u8 active_pipes;
};
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index e3462f5d96d7..36b39c381b3f 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -1420,16 +1420,14 @@ void dp_ctrl_host_deinit(struct dp_ctrl *dp_ctrl)
static bool dp_ctrl_use_fixed_nvid(struct dp_ctrl_private *ctrl)
{
u8 *dpcd = ctrl->panel->dpcd;
- u32 edid_quirks = 0;
- edid_quirks = drm_dp_get_edid_quirks(ctrl->panel->edid);
/*
* For better interop experience, used a fixed NVID=0x8000
* whenever connected to a VGA dongle downstream.
*/
if (drm_dp_is_branch(dpcd))
- return (drm_dp_has_quirk(&ctrl->panel->desc, edid_quirks,
- DP_DPCD_QUIRK_CONSTANT_N));
+ return (drm_dp_has_quirk(&ctrl->panel->desc,
+ DP_DPCD_QUIRK_CONSTANT_N));
return false;
}
diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c
index 9ae9669e46ea..3506a3534294 100644
--- a/drivers/misc/mei/hdcp/mei_hdcp.c
+++ b/drivers/misc/mei/hdcp/mei_hdcp.c
@@ -569,8 +569,7 @@ static int mei_hdcp_verify_mprime(struct device *dev,
verify_mprime_in->header.api_version = HDCP_API_VERSION;
verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ;
verify_mprime_in->header.status = ME_HDCP_STATUS_SUCCESS;
- verify_mprime_in->header.buffer_len =
- WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN;
+ verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header);
verify_mprime_in->port.integrated_port_type = data->port_type;
verify_mprime_in->port.physical_port = (u8)data->fw_ddi;
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 6236f212da61..edffd1dcca3e 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -2029,16 +2029,13 @@ struct drm_dp_desc {
int drm_dp_read_desc(struct drm_dp_aux *aux, struct drm_dp_desc *desc,
bool is_branch);
-u32 drm_dp_get_edid_quirks(const struct edid *edid);
/**
* enum drm_dp_quirk - Display Port sink/branch device specific quirks
*
* Display Port sink and branch devices in the wild have a variety of bugs, try
* to collect them here. The quirks are shared, but it's up to the drivers to
- * implement workarounds for them. Note that because some devices have
- * unreliable OUIDs, the EDID of sinks should also be checked for quirks using
- * drm_dp_get_edid_quirks().
+ * implement workarounds for them.
*/
enum drm_dp_quirk {
/**
@@ -2071,16 +2068,6 @@ enum drm_dp_quirk {
*/
DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD,
/**
- * @DP_QUIRK_FORCE_DPCD_BACKLIGHT:
- *
- * The device is telling the truth when it says that it uses DPCD
- * backlight controls, even if the system's firmware disagrees. This
- * quirk should be checked against both the ident and panel EDID.
- * When present, the driver should honor the DPCD backlight
- * capabilities advertised.
- */
- DP_QUIRK_FORCE_DPCD_BACKLIGHT,
- /**
* @DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS:
*
* The device supports a link rate of 3.24 Gbps (multiplier 0xc) despite
@@ -2092,16 +2079,14 @@ enum drm_dp_quirk {
/**
* drm_dp_has_quirk() - does the DP device have a specific quirk
* @desc: Device descriptor filled by drm_dp_read_desc()
- * @edid_quirks: Optional quirk bitmask filled by drm_dp_get_edid_quirks()
* @quirk: Quirk to query for
*
* Return true if DP device identified by @desc has @quirk.
*/
static inline bool
-drm_dp_has_quirk(const struct drm_dp_desc *desc, u32 edid_quirks,
- enum drm_dp_quirk quirk)
+drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk)
{
- return (desc->quirks | edid_quirks) & BIT(quirk);
+ return desc->quirks & BIT(quirk);
}
#ifdef CONFIG_DRM_DP_CEC
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
index fe58dbb46962..ac22c246542a 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -101,11 +101,11 @@
/* Following Macros take a byte at a time for bit(s) masking */
/*
- * TODO: This has to be changed for DP MST, as multiple stream on
- * same port is possible.
- * For HDCP2.2 on HDMI and DP SST this value is always 1.
+ * TODO: HDCP_2_2_MAX_CONTENT_STREAMS_CNT is based upon actual
+ * H/W MST streams capacity.
+ * This required to be moved out to platform specific header.
*/
-#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT 1
+#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT 4
#define HDCP_2_2_TXCAP_MASK_LEN 2
#define HDCP_2_2_RXCAPS_LEN 3
#define HDCP_2_2_RX_REPEATER(x) ((x) & BIT(0))
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 5f42a14481bd..f76de49c768f 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -528,6 +528,25 @@ extern "C" {
#define I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS fourcc_mod_code(INTEL, 7)
/*
+ * Intel Color Control Surface with Clear Color (CCS) for Gen-12 render
+ * compression.
+ *
+ * The main surface is Y-tiled and is at plane index 0 whereas CCS is linear
+ * and at index 1. The clear color is stored at index 2, and the pitch should
+ * be ignored. The clear color structure is 256 bits. The first 128 bits
+ * represents Raw Clear Color Red, Green, Blue and Alpha color each represented
+ * by 32 bits. The raw clear color is consumed by the 3d engine and generates
+ * the converted clear color of size 64 bits. The first 32 bits store the Lower
+ * Converted Clear Color value and the next 32 bits store the Higher Converted
+ * Clear Color value when applicable. The Converted Clear Color values are
+ * consumed by the DE. The last 64 bits are used to store Color Discard Enable
+ * and Depth Clear Value Valid which are ignored by the DE. A CCS cache line
+ * corresponds to an area of 4x1 tiles in the main surface. The main surface
+ * pitch is required to be a multiple of 4 tile widths.
+ */
+#define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC fourcc_mod_code(INTEL, 8)
+
+/*
* Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
*
* Macroblocks are laid in a Z-shape, and each pixel data is following the