drm/amd/display: Handle struct drm_plane_state.ignore_damage_clips

The mode-setting pipeline can disabled damage clippings for a commit
by setting ignore_damage_clips in struct drm_plane_state. The commit
will then do a full display update.

Test the flag in DCN code and do a full update in DCN code if it has
been set.

Commit 35ed38d58257 ("drm: Allow drivers to indicate the damage helpers
to ignore damage clips") introduced ignore_damage_clips to selectively
ignore damage clipping in certain framebuffer changes. This driver does
not do that, but DRM's damage iterator will soon rely on the flag.
Therefore supporting it here as well make sense for consistency.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 35ed38d58257 ("drm: Allow drivers to indicate the damage helpers to ignore damage clips")
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Zack Rusin <zackr@vmware.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit a24019f6480fad5c077b5956eed942c8960323d6)
Cc: <stable@vger.kernel.org> # v6.8+

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 d3a8d681227a8f34a0b4e03ccf84f6f2d64b7dbf..18145d78334fdae198530ae0ef1f7bf913b4ee0f 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6614,8 +6614,8 @@ static void fill_dc_dirty_rects(struct drm_plane *plane,
 {
        struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
        struct rect *dirty_rects = flip_addrs->dirty_rects;
-       u32 num_clips;
-       struct drm_mode_rect *clips;
+       u32 num_clips = 0;
+       struct drm_mode_rect *clips = NULL;
        bool bb_changed;
        bool fb_changed;
        u32 i = 0;
@@ -6631,8 +6631,10 @@ static void fill_dc_dirty_rects(struct drm_plane *plane,
        if (new_plane_state->rotation != DRM_MODE_ROTATE_0)
                goto ffu;
 
-       num_clips = drm_plane_get_damage_clips_count(new_plane_state);
-       clips = drm_plane_get_damage_clips(new_plane_state);
+       if (!new_plane_state->ignore_damage_clips) {
+               num_clips = drm_plane_get_damage_clips_count(new_plane_state);
+               clips = drm_plane_get_damage_clips(new_plane_state);
+       }
 
        if (num_clips && (!amdgpu_damage_clips || (amdgpu_damage_clips < 0 &&
                                                   is_psr_su)))