OpenCloudOS-Kernel/drivers/gpu
Chris Wilson 636deb5b22 drm/i915: Pass timeout==0 on to i915_gem_object_wait_fence()
The i915_gem_object_wait_fence() uses an incoming timeout=0 to query
whether the current fence is busy or idle, without waiting. This can be
used by the wait-ioctl to implement a busy query.

Fixes: e95433c73a ("drm/i915: Rearrange i915_wait_request() accounting with callers")
Testcase: igt/gem_wait/basic-busy-write-all
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Cc: stable@vger.kernel.org
Link: http://patchwork.freedesktop.org/patch/msgid/20170212215344.16600-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit d892e9398e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-02-16 11:59:13 +02:00
..
drm drm/i915: Pass timeout==0 on to i915_gem_object_wait_fence() 2017-02-16 11:59:13 +02:00
host1x gpu: host1x: Add locking to syncpt 2016-11-11 15:33:13 +01:00
ipu-v3 imx-drm plane update cleanup, YUV formats 2016-11-11 09:31:27 +10:00
vga vgaarb: use valid dev pointer in vgaarb_info() 2016-11-22 16:40:35 +01:00
Makefile