diff options
| author | Alvin Lee <alvin.lee2@amd.com> | 2024-01-27 00:47:20 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-02-08 02:27:09 +0300 |
| commit | ca8179ba11f211cdcb6c12ddd83814eaec999738 (patch) | |
| tree | 9e9b7b9adfab58d2581e02388c7af1af6d36f95c /drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | |
| parent | e6a7df96facdcf5b1f71eb3ec26f2f9f6ad61e57 (diff) | |
| download | linux-ca8179ba11f211cdcb6c12ddd83814eaec999738.tar.xz | |
drm/amd/display: Update phantom pipe enable / disable sequence
Previously we would call apply_ctx_to_hw to enable and disable
phantom pipes. However, apply_ctx_to_hw can potentially update
non-phantom pipes as well which is undesired. Instead of calling
apply_ctx_to_hw as a whole, call the relevant helpers for each
phantom pipe when enabling / disabling which will avoid us modifying
hardware state for non-phantom pipes unknowingly.
The use case is for an FRL display where FRL_Update is requested
by the display. In this case link_state_valid flag is cleared in
a passive callback thread and should be handled in the next stream /
link update. However, due to the call to apply_ctx_to_hw for the
phantom pipes during a flip, the main pipes were modified outside
of the desired sequence (driver does not handle link_state_valid = 0
on flips).
Cc: stable@vger.kernel.org # 6.6+
Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c index 4853ecac53f9..931ac8ed7069 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c @@ -2561,7 +2561,7 @@ void dcn20_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx) tg->funcs->setup_vertical_interrupt2(tg, start_line); } -static void dcn20_reset_back_end_for_pipe( +void dcn20_reset_back_end_for_pipe( struct dc *dc, struct pipe_ctx *pipe_ctx, struct dc_state *context) |