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drm/amd/pm: correct the way to get the highest vddc

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Populate the correct highest vddc setting on Polaris.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan
2020-09-25 14:27:16 +08:00
committed by Alex Deucher
parent d765129a71
commit be56f22b62
1 changed files with 28 additions and 2 deletions
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30
drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
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@@ -2282,6 +2282,28 @@ static int smu7_complete_dependency_tables(struct pp_hwmgr *hwmgr)
return result;
}
static int smu7_find_highest_vddc(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 *allowed_sclk_vdd_table =
table_info->vdd_dep_on_sclk;
struct phm_ppt_v1_voltage_lookup_table *lookup_table =
table_info->vddc_lookup_table;
uint16_t highest_voltage;
uint32_t i;
highest_voltage = allowed_sclk_vdd_table->entries[allowed_sclk_vdd_table->count - 1].vddc;
for (i = 0; i < lookup_table->count; i++) {
if (lookup_table->entries[i].us_vdd < ATOM_VIRTUAL_VOLTAGE_ID0 &&
lookup_table->entries[i].us_vdd > highest_voltage)
highest_voltage = lookup_table->entries[i].us_vdd;
}
return highest_voltage;
}
static int smu7_set_private_data_based_on_pptable_v1(struct pp_hwmgr *hwmgr)
{
struct phm_ppt_v1_information *table_info =
@@ -2310,8 +2332,12 @@ static int smu7_set_private_data_based_on_pptable_v1(struct pp_hwmgr *hwmgr)
allowed_sclk_vdd_table->entries[allowed_sclk_vdd_table->count - 1].clk;
table_info->max_clock_voltage_on_ac.mclk =
allowed_mclk_vdd_table->entries[allowed_mclk_vdd_table->count - 1].clk;
table_info->max_clock_voltage_on_ac.vddc =
allowed_sclk_vdd_table->entries[allowed_sclk_vdd_table->count - 1].vddc;
if (hwmgr->chip_id >= CHIP_POLARIS10 && hwmgr->chip_id <= CHIP_VEGAM)
table_info->max_clock_voltage_on_ac.vddc =
smu7_find_highest_vddc(hwmgr);
else
table_info->max_clock_voltage_on_ac.vddc =
allowed_sclk_vdd_table->entries[allowed_sclk_vdd_table->count - 1].vddc;
table_info->max_clock_voltage_on_ac.vddci =
allowed_mclk_vdd_table->entries[allowed_mclk_vdd_table->count - 1].vddci;