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drm/amd/powerplay: Workaround for Memory EDC Error on Polaris10. 

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2016-06-27 14:46:47 +08:00 committed by Alex Deucher
parent 0812a945fb
commit 3a8bd717ee
1 changed files with 26 additions and 0 deletions
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26
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
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@ -2924,6 +2924,31 @@ static int polaris10_set_private_data_based_on_pptable(struct pp_hwmgr *hwmgr)
return 0;
}
int polaris10_patch_voltage_workaround(struct pp_hwmgr *hwmgr)
{
struct phm_ppt_v1_information *table_info =
(struct phm_ppt_v1_information *)(hwmgr->pptable);
struct phm_ppt_v1_clock_voltage_dependency_table *dep_mclk_table =
table_info->vdd_dep_on_mclk;
struct phm_ppt_v1_voltage_lookup_table *lookup_table =
table_info->vddc_lookup_table;
uint32_t i;
if (hwmgr->chip_id == CHIP_POLARIS10 && hwmgr->hw_revision == 0xC7) {
if (lookup_table->entries[dep_mclk_table->entries[dep_mclk_table->count-1].vddInd].us_vdd >= 1000)
return 0;
for (i = 0; i < lookup_table->count; i++) {
if (lookup_table->entries[i].us_vdd < 0xff01 && lookup_table->entries[i].us_vdd >= 1000) {
dep_mclk_table->entries[dep_mclk_table->count-1].vddInd = (uint8_t) i;
return 0;
}
}
}
return 0;
}
int polaris10_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
{
struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
@ -3001,6 +3026,7 @@ int polaris10_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
polaris10_set_features_platform_caps(hwmgr);
polaris10_patch_voltage_workaround(hwmgr);
polaris10_init_dpm_defaults(hwmgr);
/* Get leakage voltage based on leakage ID. */