libdrm: add prime fd->handle and handle->fd interfaces

These are just basic ioctl wrappers around the prime ioctls,
along with the capability reporting.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/xf86drm.h b/xf86drm.h
index 76eb94e2b..5ecb28465 100644
--- a/xf86drm.h
+++ b/xf86drm.h
@@ -727,6 +727,9 @@ extern int drmHandleEvent(int fd, drmEventContextPtr evctx);
 
 extern char *drmGetDeviceNameFromFd(int fd);
 
+extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd);
+extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle);
+
 #if defined(__cplusplus) || defined(c_plusplus)
 }
 #endif