winsys/radeon: test the userptr ioctl to see if it's present

There is no other way to check for support.

Reviewed-by: Christian König <[email protected]>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.h b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.h
index 1e0c632be99..5711ffa8e53 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.h
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.h
@@ -32,6 +32,25 @@
 
 #include "radeon_winsys.h"
 #include "os/os_thread.h"
+#include <radeon_drm.h>
+
+#ifndef DRM_RADEON_GEM_USERPTR
+
+#define DRM_RADEON_GEM_USERPTR		0x2d
+
+#define RADEON_GEM_USERPTR_READONLY	(1 << 0)
+#define RADEON_GEM_USERPTR_ANONONLY	(1 << 1)
+#define RADEON_GEM_USERPTR_VALIDATE	(1 << 2)
+#define RADEON_GEM_USERPTR_REGISTER	(1 << 3)
+
+struct drm_radeon_gem_userptr {
+       uint64_t                addr;
+       uint64_t                size;
+       uint32_t                flags;
+       uint32_t                handle;
+};
+
+#endif
 
 struct radeon_drm_cs;