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drm/vmwgfx: Disable damage clipping if FB changed since last page-flip

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The driver does per-buffer uploads and needs to force a full plane update
if the plane's attached framebuffer has change since the last page-flip.

Suggested-by: Sima Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Acked-by: Sima Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20231123221315.3579454-4-javierm@redhat.com
This commit is contained in:
Javier Martinez Canillas 2023-11-23 23:13:02 +01:00
parent 0240db231d
commit b83b2a80d6
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GPG key ID: C751E590D63F3D69
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -832,10 +832,21 @@ int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
{ {
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane); plane);
struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
plane);
struct drm_crtc_state *crtc_state = NULL; struct drm_crtc_state *crtc_state = NULL;
struct drm_framebuffer *new_fb = new_state->fb; struct drm_framebuffer *new_fb = new_state->fb;
struct drm_framebuffer *old_fb = old_state->fb;
int ret; int ret;
/*
* Ignore damage clips if the framebuffer attached to the plane's state
* has changed since the last plane update (page-flip). In this case, a
* full plane update should happen because uploads are done per-buffer.
*/
if (old_fb != new_fb)
new_state->ignore_damage_clips = true;
if (new_state->crtc) if (new_state->crtc)
crtc_state = drm_atomic_get_new_crtc_state(state, crtc_state = drm_atomic_get_new_crtc_state(state,
new_state->crtc); new_state->crtc);