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authorAlex Deucher2013-05-09 17:27:49 -0400
committerAlex Deucher2013-08-30 16:30:23 -0400
commit3cb928ff1e5bbb0bf03bb6aaa1b6052286565283 (patch)
treec291ab5a3b3db1de622961d4f7d803c98b72bc93
parentbecfa6989b146a4696c20d19f0377a003be70ac5 (diff)
drm/radeon: parse the samu clock voltage deps table
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/radeon/r600_dpm.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c
index 98db6ea51ca7..314886ab011b 100644
--- a/drivers/gpu/drm/radeon/r600_dpm.c
+++ b/drivers/gpu/drm/radeon/r600_dpm.c
@@ -1051,6 +1051,30 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
le16_to_cpu(limits->entries[i].usVoltage);
}
}
+ if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) &&
+ ext_hdr->usSAMUTableOffset) {
+ ATOM_PPLIB_SAMClk_Voltage_Limit_Table *limits =
+ (ATOM_PPLIB_SAMClk_Voltage_Limit_Table *)
+ (mode_info->atom_context->bios + data_offset +
+ le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1);
+ u32 size = limits->numEntries *
+ sizeof(struct radeon_clock_voltage_dependency_entry);
+ rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries =
+ kzalloc(size, GFP_KERNEL);
+ if (!rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) {
+ r600_free_extended_power_table(rdev);
+ return -ENOMEM;
+ }
+ rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count =
+ limits->numEntries;
+ for (i = 0; i < limits->numEntries; i++) {
+ rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk =
+ le16_to_cpu(limits->entries[i].usSAMClockLow) |
+ (limits->entries[i].ucSAMClockHigh << 16);
+ rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].v =
+ le16_to_cpu(limits->entries[i].usVoltage);
+ }
+ }
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) &&
ext_hdr->usPPMTableOffset) {
ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *)
@@ -1147,6 +1171,8 @@ void r600_free_extended_power_table(struct radeon_device *rdev)
kfree(rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries);
if (rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries)
kfree(rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries);
+ if (rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries)
+ kfree(rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries);
}
enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,