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| author | Maarten Lankhorst <maarten.lankhorst@canonical.com> | 2012-11-06 14:39:43 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-11-20 16:17:35 +1000 |
| commit | 654aa79259a19f0d5e3cf9cb20aff56dc3b041b7 (patch) | |
| tree | 406029f079300aac57d3463cf952b68d122619e9 /include/drm/ttm/ttm_bo_api.h | |
| parent | 6c1e963cc5771c93d4ed7aa8bdd4322a7c918e9b (diff) | |
| download | op-kernel-dev-654aa79259a19f0d5e3cf9cb20aff56dc3b041b7.zip op-kernel-dev-654aa79259a19f0d5e3cf9cb20aff56dc3b041b7.tar.gz | |
drm/ttm: alter cpu_writers to return -EBUSY in ttm_execbuf_util reservations
This is similar to other platforms that don't allow command submission
to buffers locked on the cpu.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/ttm/ttm_bo_api.h')
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 5ff938d..c6cae73 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -424,8 +424,9 @@ extern void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, * @no_wait: Return immediately if buffer is busy. * * Synchronizes a buffer object for CPU RW access. This means - * blocking command submission that affects the buffer and - * waiting for buffer idle. This lock is recursive. + * command submission that affects the buffer will return -EBUSY + * until ttm_bo_synccpu_write_release is called. + * * Returns * -EBUSY if the buffer is busy and no_wait is true. * -ERESTARTSYS if interrupted by a signal. |
