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drm/amd/powerplay: force FCLK to highest also for 5K or higher displays 

This can fix possible screen freeze on high resolution displays.

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 2019-02-20 16:08:41 +08:00 committed by Alex Deucher
parent d19e923337
commit 971e7ac1ab
1 changed files with 37 additions and 1 deletions
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38
drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
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@ -3332,6 +3332,31 @@ static int vega20_set_uclk_to_highest_dpm_level(struct pp_hwmgr *hwmgr,
return ret;
}
static int vega20_set_fclk_to_highest_dpm_level(struct pp_hwmgr *hwmgr)
{
struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend);
struct vega20_single_dpm_table *dpm_table = &(data->dpm_table.fclk_table);
int ret = 0;
if (data->smu_features[GNLD_DPM_FCLK].enabled) {
PP_ASSERT_WITH_CODE(dpm_table->count > 0,
"[SetFclkToHightestDpmLevel] Dpm table has no entry!",
return -EINVAL);
PP_ASSERT_WITH_CODE(dpm_table->count <= NUM_FCLK_DPM_LEVELS,
"[SetFclkToHightestDpmLevel] Dpm table has too many entries!",
return -EINVAL);
dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
PP_ASSERT_WITH_CODE(!(ret = smum_send_msg_to_smc_with_parameter(hwmgr,
PPSMC_MSG_SetSoftMinByFreq,
(PPCLK_FCLK << 16 ) | dpm_table->dpm_state.soft_min_level)),
"[SetFclkToHightestDpmLevel] Set soft min fclk failed!",
return ret);
}
return ret;
}
static int vega20_pre_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
{
struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend);
@ -3342,8 +3367,10 @@ static int vega20_pre_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
ret = vega20_set_uclk_to_highest_dpm_level(hwmgr,
&data->dpm_table.mem_table);
if (ret)
return ret;
return vega20_set_fclk_to_highest_dpm_level(hwmgr);
}
static int vega20_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
@ -3502,6 +3529,15 @@ static int vega20_apply_clocks_adjust_rules(struct pp_hwmgr *hwmgr)
if (hwmgr->display_config->nb_pstate_switch_disable)
dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
/* fclk */
dpm_table = &(data->dpm_table.fclk_table);
dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
if (hwmgr->display_config->nb_pstate_switch_disable)
dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
/* vclk */
dpm_table = &(data->dpm_table.vclk_table);
dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;