diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-07-07 08:43:03 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-07-07 08:45:26 +0200 |
| commit | 3cb43cc0b408c4672ba94fe28406a90a94b1edfe (patch) | |
| tree | dc8dd91ba6ab8ced418ed49113dd945f08448626 /drivers/gpu | |
| parent | 1f96beec7a44f46bf277e2050a7a5a0308831d61 (diff) | |
drm: Update plane->fb also for page_flip
The legacy page_flip driver entry point is the only one left which
requires drivers to update plane->fb themselves. All the other entry
hooks will patch things up for the driver as needed since no one seems
to reliable get this right, see e.g. drm_mode_set_config_internal or
the plane->fb/old_fb handling in drm_mode_atomic_ioctl.
Therefore unify things, which allows us to ditch a TODO from
drm_atomic_helper_page_flip.
This should also help the atomic transition in i915 since we keep a
bit of legacy cruft only around because of this special behaviour in
->page_flip.
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 8 |
2 files changed, 1 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 5b59d5ad7d1c..0898afbc9e23 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1915,10 +1915,6 @@ retry: if (ret != 0) goto fail; - /* TODO: ->page_flip is the only driver callback where the core - * doesn't update plane->fb. For now patch it up here. */ - plane->fb = plane->state->fb; - /* Driver takes ownership of state on successful async commit. */ return 0; fail: diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 0bf46d5ee221..2bbb232e80d7 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -5345,13 +5345,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, /* Keep the old fb, don't unref it. */ crtc->primary->old_fb = NULL; } else { - /* - * Warn if the driver hasn't properly updated the crtc->fb - * field to reflect that the new framebuffer is now used. - * Failing to do so will screw with the reference counting - * on framebuffers. - */ - WARN_ON(crtc->primary->fb != fb); + crtc->primary->fb = fb; /* Unref only the old framebuffer. */ fb = NULL; } |