From 786b99ed13223d8ac58a937dd348aead45eb8191 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 2 Dec 2012 21:53:40 +0100 Subject: drm: create drm_framebuffer_lookup And replace all fb lookups with it. Also add a WARN to drm_mode_object_find since that is now no longer the blessed interface to look up an fb. And add kerneldoc to both functions. This only updates all callsites, but immediately drops the acquired refence again. Hence all callers still rely on the fact that a mode fb can't disappear while they're holding the struct mutex. Subsequent patches will instate proper use of refcounts, and then rework the rmfb and unref code to no longer serialize fb destruction with the mode_config lock. We don't want that since otherwise a compositor might end up stalling for a few frames in rmfb. v2: Don't use kref_get_unless_zero - Greg KH doesn't like that kind of interface. Reviewed-by: Rob Clark Signed-off-by: Daniel Vetter --- include/drm/drm_crtc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/drm') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index c35a807d7e5c..7dc1b31059d4 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -958,6 +958,8 @@ extern void drm_framebuffer_set_object(struct drm_device *dev, extern int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, const struct drm_framebuffer_funcs *funcs); +extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, + uint32_t id); extern void drm_framebuffer_unreference(struct drm_framebuffer *fb); extern void drm_framebuffer_reference(struct drm_framebuffer *fb); extern void drm_framebuffer_remove(struct drm_framebuffer *fb); -- cgit v1.2.3