diff options
| author | Jessica Zhang <quic_jesszhan@quicinc.com> | 2023-10-27 15:32:57 -0700 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-12-02 01:56:55 +0200 |
| commit | f1e75da5364e780905d9cd6043f9c74cdcf84073 (patch) | |
| tree | 0cb8076f9f77e28ebb6692b7473bb909d7dc7070 /drivers/gpu/drm/drm_atomic.c | |
| parent | 4ba6b7a646321e740c7f2d80c90505019c4e8fce (diff) | |
| download | linux-stable-f1e75da5364e780905d9cd6043f9c74cdcf84073.tar.gz linux-stable-f1e75da5364e780905d9cd6043f9c74cdcf84073.tar.bz2 linux-stable-f1e75da5364e780905d9cd6043f9c74cdcf84073.zip | |
drm/atomic: Loosen FB atomic checks
Loosen the requirements for atomic and legacy commit so that, in cases
where pixel_source != FB, the commit can still go through.
This includes adding framebuffer NULL checks in other areas to account for
FB being NULL when non-FB pixel sources are enabled.
To disable a plane, the pixel_source must be NONE or the FB must be NULL
if pixel_source == FB.
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231027-solid-fill-v7-7-780188bfa7b2@quicinc.com
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index c6f2b86c48ae..aed0a694c74c 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -674,17 +674,16 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state, { struct drm_plane *plane = new_plane_state->plane; struct drm_crtc *crtc = new_plane_state->crtc; - const struct drm_framebuffer *fb = new_plane_state->fb; int ret; - /* either *both* CRTC and FB must be set, or neither */ - if (crtc && !fb) { - drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] CRTC set but no FB\n", + /* either *both* CRTC and pixel source must be set, or neither */ + if (crtc && !drm_plane_has_visible_data(new_plane_state)) { + drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] CRTC set but no visible data\n", plane->base.id, plane->name); return -EINVAL; - } else if (fb && !crtc) { - drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] FB set but no CRTC\n", - plane->base.id, plane->name); + } else if (drm_plane_has_visible_data(new_plane_state) && !crtc) { + drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] Source %d has visible data but no CRTC\n", + plane->base.id, plane->name, new_plane_state->pixel_source); return -EINVAL; } @@ -715,9 +714,11 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state, } - ret = drm_atomic_plane_check_fb(new_plane_state); - if (ret) - return ret; + if (new_plane_state->pixel_source == DRM_PLANE_PIXEL_SOURCE_FB && new_plane_state->fb) { + ret = drm_atomic_plane_check_fb(new_plane_state); + if (ret) + return ret; + } if (plane_switching_crtc(old_plane_state, new_plane_state)) { drm_dbg_atomic(plane->dev, |