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drm/amd/pp: Allow underclocking when od table is empty in vbios

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if max od engine clock limit and memory clock limit are not set
in vbios. driver will allow underclocking instand of disable od feature
completely.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2018-05-30 16:52:22 +08:00 committed by Alex Deucher
parent 9dac0c3fb4
commit 46defdd6ff
5 changed files with 10 additions and 19 deletions
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6
drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
View File

@ -870,12 +870,6 @@ static int init_over_drive_limits(
hwmgr->platform_descriptor.maxOverdriveVDDC = 0;
hwmgr->platform_descriptor.overdriveVDDCStep = 0;
if (hwmgr->platform_descriptor.overdriveLimit.engineClock == 0 \
|| hwmgr->platform_descriptor.overdriveLimit.memoryClock == 0) {
hwmgr->od_enabled = false;
pr_debug("OverDrive feature not support by VBIOS\n");
}
return 0;
}

6
drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
View File

@ -1074,12 +1074,6 @@ static int init_overdrive_limits(struct pp_hwmgr *hwmgr,
powerplay_table,
(const ATOM_FIRMWARE_INFO_V2_1 *)fw_info);
if (hwmgr->platform_descriptor.overdriveLimit.engineClock == 0
&& hwmgr->platform_descriptor.overdriveLimit.memoryClock == 0) {
hwmgr->od_enabled = false;
pr_debug("OverDrive feature not support by VBIOS\n");
}
return result;
}

5
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
View File

@ -791,7 +791,8 @@ static int smu7_setup_dpm_tables_v1(struct pp_hwmgr *hwmgr)
data->dpm_table.sclk_table.count++;
}
}
if (hwmgr->platform_descriptor.overdriveLimit.engineClock == 0)
hwmgr->platform_descriptor.overdriveLimit.engineClock = dep_sclk_table->entries[i-1].clk;
/* Initialize Mclk DPM table based on allow Mclk values */
data->dpm_table.mclk_table.count = 0;
for (i = 0; i < dep_mclk_table->count; i++) {
@ -806,6 +807,8 @@ static int smu7_setup_dpm_tables_v1(struct pp_hwmgr *hwmgr)
}
}
if (hwmgr->platform_descriptor.overdriveLimit.memoryClock == 0)
hwmgr->platform_descriptor.overdriveLimit.memoryClock = dep_mclk_table->entries[i-1].clk;
return 0;
}

6
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
View File

@ -1311,6 +1311,9 @@ static int vega10_setup_default_dpm_tables(struct pp_hwmgr *hwmgr)
vega10_setup_default_single_dpm_table(hwmgr,
dpm_table,
dep_gfx_table);
if (hwmgr->platform_descriptor.overdriveLimit.engineClock == 0)
hwmgr->platform_descriptor.overdriveLimit.engineClock =
dpm_table->dpm_levels[dpm_table->count-1].value;
vega10_init_dpm_state(&(dpm_table->dpm_state));
/* Initialize Mclk DPM table based on allow Mclk values */
@ -1319,6 +1322,9 @@ static int vega10_setup_default_dpm_tables(struct pp_hwmgr *hwmgr)
vega10_setup_default_single_dpm_table(hwmgr,
dpm_table,
dep_mclk_table);
if (hwmgr->platform_descriptor.overdriveLimit.memoryClock == 0)
hwmgr->platform_descriptor.overdriveLimit.memoryClock =
dpm_table->dpm_levels[dpm_table->count-1].value;
vega10_init_dpm_state(&(dpm_table->dpm_state));
data->dpm_table.eclk_table.count = 0;

6
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
View File

@ -267,12 +267,6 @@ static int init_over_drive_limits(
hwmgr->platform_descriptor.maxOverdriveVDDC = 0;
hwmgr->platform_descriptor.overdriveVDDCStep = 0;
if (hwmgr->platform_descriptor.overdriveLimit.engineClock == 0 ||
hwmgr->platform_descriptor.overdriveLimit.memoryClock == 0) {
hwmgr->od_enabled = false;
pr_debug("OverDrive feature not support by VBIOS\n");
}
return 0;
}