diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2016-06-27 09:46:47 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-06-29 19:09:27 +0300 |
| commit | 3a8bd717ee3e0508fc0dd517b97e950989e15f8c (patch) | |
| tree | 7efb47e03ccce3fd7ccd46925e5109b7cc172f10 /drivers | |
| parent | 0812a945fbb814e7946fbe6ddcc81d054c8b6c91 (diff) | |
| download | linux-3a8bd717ee3e0508fc0dd517b97e950989e15f8c.tar.xz | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c index d23dcce6c03c..d15584c84595 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c @@ -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. */ |