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| author | Aric Cyr <aric.cyr@amd.com> | 2020-09-22 21:37:06 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-10-05 15:17:05 -0400 |
| commit | 5dff371a7351a7e9cbb06bca9e532db16594c053 (patch) | |
| tree | a6fdc615e4836cda178a03421bb7c09bd49d568a /drivers/gpu/drm/amd/display/modules/freesync | |
| parent | 9b42868c3fd44fb1e910a9af361b5d470e2354c7 (diff) | |
| download | linux-stable-5dff371a7351a7e9cbb06bca9e532db16594c053.tar.gz linux-stable-5dff371a7351a7e9cbb06bca9e532db16594c053.tar.bz2 linux-stable-5dff371a7351a7e9cbb06bca9e532db16594c053.zip | |
drm/amd/display: FreeSync not active near lower bound of non-LFC monitor range
[Why]
On narrow range monitors without LFC, a margin prevents good utilization
of the available range.
[How]
Decrease the margin for exiting fixed mode and fix the frame counter to
reset if a non-consecutive render is found.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/freesync')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index f76d31451dcb..52c3cb6b439a 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -42,10 +42,10 @@ /* Threshold to change BTR multiplier (to avoid frequent changes) */ #define BTR_DRIFT_MARGIN 2000 /* Threshold to exit fixed refresh rate */ -#define FIXED_REFRESH_EXIT_MARGIN_IN_HZ 4 +#define FIXED_REFRESH_EXIT_MARGIN_IN_HZ 1 /* Number of consecutive frames to check before entering/exiting fixed refresh */ #define FIXED_REFRESH_ENTER_FRAME_COUNT 5 -#define FIXED_REFRESH_EXIT_FRAME_COUNT 5 +#define FIXED_REFRESH_EXIT_FRAME_COUNT 10 struct core_freesync { struct mod_freesync public; @@ -420,7 +420,8 @@ static void apply_fixed_refresh(struct core_freesync *core_freesync, in_out_vrr->fixed.target_refresh_in_uhz = 0; update = true; } - } + } else + in_out_vrr->fixed.frame_counter = 0; } else if (last_render_time_in_us > max_render_time_in_us) { /* Enter Fixed Refresh mode */ if (!in_out_vrr->fixed.fixed_active) { @@ -434,7 +435,8 @@ static void apply_fixed_refresh(struct core_freesync *core_freesync, in_out_vrr->max_refresh_in_uhz; update = true; } - } + } else + in_out_vrr->fixed.frame_counter = 0; } if (update) { |