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drm/atomic: Add struct drm_crtc_commit to track async updates

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Split out from my big nonblocking atomic commit helper code as prep
work. While add it, also add some neat asciiart to document how it's
supposed to be used.

v2: Resurrect misplaced hunk in the kerneldoc.

v3: Wording improvements from Liviu.

Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Tomeu Vizoso <tomeu.vizoso@gmail.com>
Cc: Daniel Stone <daniels@collabora.com>
Tested-by: Liviu Dudau <Liviu.Dudau@arm.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-8-git-send-email-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter
2016-06-08 14:19:00 +02:00
parent a33e93dba2
commit 3b24f7d675
6 changed files with 181 additions and 6 deletions
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3
drivers/gpu/drm/drm_crtc.c
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@@ -638,6 +638,9 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
crtc->dev = dev;
crtc->funcs = funcs;
INIT_LIST_HEAD(&crtc->commit_list);
spin_lock_init(&crtc->commit_lock);
drm_modeset_lock_init(&crtc->mutex);
ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
if (ret)