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drm/amd/powerplay: fix bug dpm can't work when resume back on Polaris 

Need to initialize the values to 0 since they get or'ed with additional
values.  If the initialization is missing, on resume, they may end up
with a combination of stale data and new data.

Fixes dpm on resume.

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:
Eric Huang 2016-04-04 11:52:56 -04:00 committed by Alex Deucher
parent 7d367c2aea
commit 681ed01c62
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
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@ -1565,6 +1565,7 @@ static int polaris10_populate_smc_vce_level(struct pp_hwmgr *hwmgr,
for (count = 0; count < table->VceLevelCount; count++) {
table->VceLevel[count].Frequency = mm_table->entries[count].eclk;
table->VceLevel[count].MinVoltage = 0;
table->VceLevel[count].MinVoltage |=
(mm_table->entries[count].vddc * VOLTAGE_SCALE) << VDDC_SHIFT;
table->VceLevel[count].MinVoltage |=
@ -1604,6 +1605,7 @@ static int polaris10_populate_smc_samu_level(struct pp_hwmgr *hwmgr,
for (count = 0; count < table->SamuLevelCount; count++) {
/* not sure whether we need evclk or not */
table->SamuLevel[count].MinVoltage = 0;
table->SamuLevel[count].Frequency = mm_table->entries[count].samclock;
table->SamuLevel[count].MinVoltage |= (mm_table->entries[count].vddc *
VOLTAGE_SCALE) << VDDC_SHIFT;
@ -1696,6 +1698,7 @@ static int polaris10_populate_smc_uvd_level(struct pp_hwmgr *hwmgr,
table->UvdBootLevel = 0;
for (count = 0; count < table->UvdLevelCount; count++) {
table->UvdLevel[count].MinVoltage = 0;
table->UvdLevel[count].VclkFrequency = mm_table->entries[count].vclk;
table->UvdLevel[count].DclkFrequency = mm_table->entries[count].dclk;
table->UvdLevel[count].MinVoltage |= (mm_table->entries[count].vddc *
@ -2011,6 +2014,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr)
if (POLARIS10_VOLTAGE_CONTROL_NONE != data->voltage_control)
polaris10_populate_smc_voltage_tables(hwmgr, table);
table->SystemFlags = 0;
if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
PHM_PlatformCaps_AutomaticDCTransition))
table->SystemFlags |= PPSMC_SYSTEMFLAG_GPIO_DC;
@ -2104,6 +2108,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr)
table->MemoryThermThrottleEnable = 1;
table->PCIeBootLinkLevel = 0;
table->PCIeGenInterval = 1;
table->VRConfig = 0;
result = polaris10_populate_vr_config(hwmgr, table);
PP_ASSERT_WITH_CODE(0 == result,