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(parent: 1f70e07) | patch
drm/msm: return -EBUSY if bo still active
authorRob Clark <robdclark@gmail.com>
Wed, 11 Sep 2013 21:34:07 +0000 (17:34 -0400)
committerRob Clark <robdclark@gmail.com>
Wed, 11 Sep 2013 21:36:28 +0000 (17:36 -0400)
commitf816f272437f3a2be0c9254d4ab8f917950d86a0
tree60a194cabed7ef5f367865d62daa99a62f5f6cf4tree | snapshot
parent1f70e079c773b2c5988b0f0b4d314fc0f6c7a1b8commit | diff
drm/msm: return -EBUSY if bo still active

When we CPU_PREP a bo with NOSYNC flag (for example, to implement
PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE), an -EBUSY return indicates to
userspace that the bo is still busy.  Previously it was incorrectly
returning 0 in this case.

And while we're in there throw in an bit of extra sanity checking in
case userspace tries to wait for a bogus fence.

Signed-off-by: Rob Clark <robdclark@gmail.com>
drivers/gpu/drm/msm/msm_drv.c diff | blob | history
drivers/gpu/drm/msm/msm_drv.h diff | blob | history
drivers/gpu/drm/msm/msm_gem.c diff | blob | history
Domain: System / Kernel;