leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/syncobj: Add a reset ioctl (v3)

Browse Source 
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>
This commit is contained in:
Jason Ekstrand
2017-08-28 14:10:27 -07:00
committed by Dave Airlie
parent 3e6fb72d6c
commit aa4035d2c7
4 changed files with 44 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/uapi/drm/drm.h
View File

@@ -731,6 +731,12 @@ struct drm_syncobj_wait {
__u32 pad;
};
struct drm_syncobj_array {
__u64 handles;
__u32 count_handles;
__u32 pad;
};
#if defined(__cplusplus)
}
#endif
@@ -854,6 +860,7 @@ extern "C" {
#define DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD DRM_IOWR(0xC1, struct drm_syncobj_handle)
#define DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE DRM_IOWR(0xC2, struct drm_syncobj_handle)
#define DRM_IOCTL_SYNCOBJ_WAIT DRM_IOWR(0xC3, struct drm_syncobj_wait)
#define DRM_IOCTL_SYNCOBJ_RESET DRM_IOWR(0xC4, struct drm_syncobj_array)
/**
* Device specific ioctls should only be in their respective headers