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| author | Christian Brauner <brauner@kernel.org> | 2024-11-26 18:15:06 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-11-26 18:15:06 +0100 |
| commit | cf87766dd6f9ddcceaa8ee26e3cbd7538e42dd19 (patch) | |
| tree | 8531685628a090333db2f874688ac07624b51072 /drivers/gpu/drm/amd/display/modules/freesync/freesync.c | |
| parent | c66f759832a83cb273ba5a55c66dcc99384efa74 (diff) | |
| parent | 2957fa4931a3b658d8e54eda9439d4c57967e8ad (diff) | |
| download | linux-cf87766dd6f9ddcceaa8ee26e3cbd7538e42dd19.tar.gz linux-cf87766dd6f9ddcceaa8ee26e3cbd7538e42dd19.tar.bz2 linux-cf87766dd6f9ddcceaa8ee26e3cbd7538e42dd19.zip | |
Merge branch 'ovl.fixes'
Bring in an overlayfs fix for v6.13-rc1 that fixes a bug introduced by
the overlayfs changes merged for v6.13.
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/freesync/freesync.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index bbd259cea4f4..f980a84dceef 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -48,6 +48,7 @@ #define VSYNCS_BETWEEN_FLIP_THRESHOLD 2 #define FREESYNC_CONSEC_FLIP_AFTER_VSYNC 5 #define FREESYNC_VSYNC_TO_FLIP_DELTA_IN_US 500 +#define MICRO_HZ_TO_HZ(x) (x / 1000000) struct core_freesync { struct mod_freesync public; @@ -128,13 +129,26 @@ unsigned int mod_freesync_calc_v_total_from_refresh( unsigned int v_total; unsigned int frame_duration_in_ns; + if (refresh_in_uhz == 0) + return stream->timing.v_total; + frame_duration_in_ns = ((unsigned int)(div64_u64((1000000000ULL * 1000000), refresh_in_uhz))); - v_total = div64_u64(div64_u64(((unsigned long long)( - frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), - stream->timing.h_total) + 500000, 1000000); + if (MICRO_HZ_TO_HZ(refresh_in_uhz) <= stream->timing.min_refresh_in_uhz) { + /* When the target refresh rate is the minimum panel refresh rate, + * round down the vtotal value to avoid stretching vblank over + * panel's vtotal boundary. + */ + v_total = div64_u64(div64_u64(((unsigned long long)( + frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), + stream->timing.h_total), 1000000); + } else { + v_total = div64_u64(div64_u64(((unsigned long long)( + frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), + stream->timing.h_total) + 500000, 1000000); + } /* v_total cannot be less than nominal */ if (v_total < stream->timing.v_total) { |