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authorImre Deak2014-04-14 20:24:43 +0300
committerDaniel Vetter2014-05-05 09:09:13 +0200
commit8d4eee9cd7a170342dc6fbc2ee19ae77031a8cd5 (patch)
treed91538590705be16898b861aaf72f753d28ca7b8
parent650ad970a39f8b6164fe8613edc150f585315289 (diff)
drm/i915: vlv: increase timeout when forcing on the GFX clock
I've seen latencies up to 15msec, so increase the timeout to 20msec. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9f3e977d1877..208e185c16a9 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -944,7 +944,7 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on)
#define COND (I915_READ(VLV_GTLC_SURVIVABILITY_REG) & VLV_GFX_CLK_STATUS_BIT)
/* Wait for a previous force-off to settle */
if (force_on) {
- err = wait_for(!COND, 5);
+ err = wait_for(!COND, 20);
if (err) {
DRM_ERROR("timeout waiting for GFX clock force-off (%08x)\n",
I915_READ(VLV_GTLC_SURVIVABILITY_REG));
@@ -961,7 +961,7 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on)
if (!force_on)
return 0;
- err = wait_for(COND, 5);
+ err = wait_for(COND, 20);
if (err)
DRM_ERROR("timeout waiting for GFX clock force-on (%08x)\n",
I915_READ(VLV_GTLC_SURVIVABILITY_REG));