From f6893fcb10c7b24526454e465f6ec2563ef044cc Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Tue, 23 May 2023 22:07:46 -0600 Subject: drm/amd/display: Add writeback enable field (wb_enabled) [WHAT] Add a new field to keep track whether a crtc is previously writeback-enabled. Reviewed-by: Harry Wentland Signed-off-by: Alex Hung Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c') diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 4f2f78aaaf0e..19087c4af33f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -8732,9 +8732,13 @@ static void amdgpu_dm_commit_streams(struct drm_atomic_state *state, if (acrtc) old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base); + if (!acrtc->wb_enabled) + continue; + dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); dm_clear_writeback(dm, dm_old_crtc_state); + acrtc->wb_enabled = false; } for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, @@ -9312,9 +9316,13 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) if (acrtc) new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); + if (acrtc->wb_enabled) + continue; + dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); dm_set_writeback(dm, dm_new_crtc_state, connector, new_con_state); + acrtc->wb_enabled = true; } /* Update audio instances for each connector. */ -- cgit v1.2.3-70-g09d2