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drm/amd/display: To support Replay frame skip mode

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[Why & How]
The change is to optimize the Replay power saving by
reducing the refresh rate with frame skipping mode

Reviewed-by: Robin Chen <robin.chen@amd.com>
Signed-off-by: Chuntao Tso <chunttso@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chuntao Tso
2025-10-31 10:02:51 +08:00
committed by Alex Deucher
parent 45de10d2d9
commit f3f48d6ce5
9 changed files with 65 additions and 15 deletions
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30
drivers/gpu/drm/amd/display/modules/power/power_helpers.c
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@@ -975,6 +975,34 @@ bool psr_su_set_dsc_slice_height(struct dc *dc, struct dc_link *link,
return true;
}
void set_replay_frame_skip_number(struct dc_link *link,
enum replay_coasting_vtotal_type type,
uint32_t coasting_vtotal_refresh_rate_mhz,
uint32_t flicker_free_refresh_rate_mhz,
bool is_defer)
{
uint32_t *frame_skip_number_array = NULL;
uint32_t frame_skip_number = 0;
if (link == NULL || flicker_free_refresh_rate_mhz == 0 || coasting_vtotal_refresh_rate_mhz == 0)
return;
if (is_defer)
frame_skip_number_array = link->replay_settings.defer_frame_skip_number_table;
else
frame_skip_number_array = link->replay_settings.frame_skip_number_table;
if (frame_skip_number_array == NULL)
return;
frame_skip_number = coasting_vtotal_refresh_rate_mhz / flicker_free_refresh_rate_mhz;
if (frame_skip_number >= 1)
frame_skip_number_array[type] = frame_skip_number - 1;
else
frame_skip_number_array[type] = 0;
}
void set_replay_defer_update_coasting_vtotal(struct dc_link *link,
enum replay_coasting_vtotal_type type,
uint32_t vtotal)
@@ -987,6 +1015,8 @@ void update_replay_coasting_vtotal_from_defer(struct dc_link *link,
{
link->replay_settings.coasting_vtotal_table[type] =
link->replay_settings.defer_update_coasting_vtotal_table[type];
link->replay_settings.frame_skip_number_table[type] =
link->replay_settings.defer_frame_skip_number_table[type];
}
void set_replay_coasting_vtotal(struct dc_link *link,