Initial prime support

Add initial prime support for exporting gem objects via dmabuf.

Signed-off-by: Russell King <rmk_cubox@arm.linux.org.uk>

1 files changed, 12 insertions, 0 deletions

diff --git a/armada_bufmgr.c b/armada_bufmgr.c
index 2364051..6b9e667 100644
--- a/armada_bufmgr.c
+++ b/armada_bufmgr.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <sys/fcntl.h>
 #include <sys/mman.h>
 #include <time.h>
 
@@ -452,6 +453,17 @@ int drm_armada_bo_flink(struct drm_armada_bo *dbo, uint32_t *name)
     return 0;
 }
 
+int drm_armada_bo_to_fd(struct drm_armada_bo *dbo, int *prime_fd)
+{
+    struct armada_bo *bo = to_armada_bo(dbo);
+    int fd = bo->mgr->fd;
+
+    if (drmPrimeHandleToFD(fd, bo->bo.handle, DRM_CLOEXEC, prime_fd))
+        return -1;
+
+    return 0;
+}
+
 int drm_armada_bo_map(struct drm_armada_bo *dbo)
 {
     struct armada_bo *bo = to_armada_bo(dbo);