On Fri, 2022-05-06 at 08:48 +0300, Jouni Högander wrote: > Current update area calculation is not handling situation where > e.g. cursor plane is fully or partially outside pipe area. > > Fix this by checking damage area against pipe_src area using > drm_rect_intersect. > > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5440 > Cc: José Roberto de Souza <jose.souza@xxxxxxxxx> > Cc: Mika Kahola <mika.kahola@xxxxxxxxx> > Tested-by: Mark Pearson <markpearson@xxxxxxxxxx> > Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_psr.c | 17 +++++++++++++---- > 1 file changed, 13 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c > index 8c099d24de86..5229ba89a079 100644 > --- a/drivers/gpu/drm/i915/display/intel_psr.c > +++ b/drivers/gpu/drm/i915/display/intel_psr.c > @@ -1724,6 +1724,10 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, > break; > } > > + /* Set x1 and x2 for drm_rect_intersect usage */ > + damaged_area.x1 = 0; > + damaged_area.x2 = INT_MAX; Move the above to the variable definition and initialization. > + > /* > * If visibility or plane moved, mark the whole plane area as > * damaged as it needs to be complete redraw in the new and old > @@ -1735,20 +1739,23 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, > if (old_plane_state->uapi.visible) { > damaged_area.y1 = old_plane_state->uapi.dst.y1; > damaged_area.y2 = old_plane_state->uapi.dst.y2; > - clip_area_update(&pipe_clip, &damaged_area); > + if (drm_rect_intersect(&damaged_area, &crtc_state->pipe_src)) > + clip_area_update(&pipe_clip, &damaged_area); > } > > if (new_plane_state->uapi.visible) { > damaged_area.y1 = new_plane_state->uapi.dst.y1; > damaged_area.y2 = new_plane_state->uapi.dst.y2; > - clip_area_update(&pipe_clip, &damaged_area); > + if (drm_rect_intersect(&damaged_area, &crtc_state->pipe_src)) > + clip_area_update(&pipe_clip, &damaged_area); > } > continue; > } else if (new_plane_state->uapi.alpha != old_plane_state->uapi.alpha) { > /* If alpha changed mark the whole plane area as damaged */ > damaged_area.y1 = new_plane_state->uapi.dst.y1; > damaged_area.y2 = new_plane_state->uapi.dst.y2; > - clip_area_update(&pipe_clip, &damaged_area); > + if (drm_rect_intersect(&damaged_area, &crtc_state->pipe_src)) > + clip_area_update(&pipe_clip, &damaged_area); > continue; > } > > @@ -1767,7 +1774,9 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, > > damaged_area.y1 += new_plane_state->uapi.dst.y1 - src.y1; > damaged_area.y2 += new_plane_state->uapi.dst.y1 - src.y1; > - clip_area_update(&pipe_clip, &damaged_area); > + > + if (drm_rect_intersect(&damaged_area, &crtc_state->pipe_src)) > + clip_area_update(&pipe_clip, &damaged_area); As it is repeating move the drm_rect_intersect() call to clip_area_update(), adding a crtc_state parameter or pipe_src, your call. Also please include a Fixes tag to some commit that makes sense so this patch is backported to older kernels with selective fetch enabled. > } > > if (pipe_clip.y1 == -1)
