diff options
| author | Jason Ekstrand <jason@jlekstrand.net> | 2017-08-28 14:10:27 -0700 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-08-29 10:16:19 +1000 |
| commit | aa4035d2c7683d2f2fb0ffe8087abd9eabf6d54a (patch) | |
| tree | 77167db05d67212faa9d9ac03b368a83badfc752 /drivers/gpu/drm/drm_syncobj.c | |
| parent | 3e6fb72d6cef6a46f8531a01ed290785952fe25b (diff) | |
drm/syncobj: Add a reset ioctl (v3)
This just resets the dma_fence to NULL so it looks like it's never been
signaled. This will be useful once we add the new wait API for allowing
wait on "submit and signal" behavior.
v2:
- Take an array of sync objects (Dave Airlie)
v3:
- Throw -EINVAL if pad != 0
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_syncobj.c')
| -rw-r--r-- | drivers/gpu/drm/drm_syncobj.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 15e74ca61760..40d2ad293661 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -885,3 +885,36 @@ drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, return ret; } + +int +drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_private) +{ + struct drm_syncobj_array *args = data; + struct drm_syncobj **syncobjs; + uint32_t i; + int ret; + + if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ)) + return -ENODEV; + + if (args->pad != 0) + return -EINVAL; + + if (args->count_handles == 0) + return -EINVAL; + + ret = drm_syncobj_array_find(file_private, + u64_to_user_ptr(args->handles), + args->count_handles, + &syncobjs); + if (ret < 0) + return ret; + + for (i = 0; i < args->count_handles; i++) + drm_syncobj_replace_fence(syncobjs[i], NULL); + + drm_syncobj_array_free(syncobjs, args->count_handles); + + return 0; +} |