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From 544475866debb7714fa210889426e258ca78e4ba Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Wed, 20 Feb 2019 16:08:41 +0800
Subject: [PATCH 1323/2940] drm/amd/powerplay: force FCLK to highest also for
5K or higher displays
This can fix possible screen freeze on high resolution displays.
Change-Id: Ia1f1708638a85d57789a61ba0937c5221bd28c31
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
---
.../drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 38 ++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
index 8ca49c3cf6db..17ea5c699240 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
@@ -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 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;
--
2.17.1
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