mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-01 19:34:35 +08:00
ab58e3384b
Especially with legacy cursor ioctls existing userspace assumes that you can pile up lots of updates in one go. The super-proper way to support this would be a special commit mode which overwrites the last update. But getting there will be quite a bit of work. Meanwhile do what pretty much all the drivers have done for the plane update functions: Simply skip the vblank wait for the buffer cleanup if the buffer is the same. Since the universal cursor plane code will not recreate framebuffers needlessly this allows us to not slow down legacy pageflip events while someone moves the cursor around. v2: Drop the async plane update hunk from a previous attempt at this issue. v3: Fix up kerneldoc. v4: Don't oops so badly. Reported by Jasper. Cc: Rob Clark <robdclark@gmail.com> Cc: "Jasper St. Pierre" <jstpierre@mecheye.net> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net> Tested-by: Jasper St. Pierre <jstpierre@mecheye.net> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> |
||
|---|---|---|
| .. | ||
| drm | ||
| host1x | ||
| ipu-v3 | ||
| vga | ||
| Makefile | ||