1 files changed, 63 insertions, 0 deletions
diff --git a/src/gallium/winsys/r600/drm/radeon_ws_bo.c b/src/gallium/winsys/r600/drm/radeon_ws_bo.c
new file mode 100644
index 0000000000..c789f8780f
--- /dev/null
+++ b/src/gallium/winsys/r600/drm/radeon_ws_bo.c
@@ -0,0 +1,63 @@
+#include <malloc.h>
+#include "radeon_priv.h"
+
+struct radeon_ws_bo *radeon_ws_bo(struct radeon *radeon,
+				  unsigned size, unsigned alignment)
+{
+	struct radeon_ws_bo *ws_bo = calloc(1, sizeof(struct radeon_ws_bo));
+
+	ws_bo->bo = radeon_bo(radeon, 0, size, alignment, NULL);
+	if (!ws_bo->bo) {
+		free(ws_bo);
+		return NULL;
+	}
+
+	pipe_reference_init(&ws_bo->reference, 1);
+	return ws_bo;
+}
+
+struct radeon_ws_bo *radeon_ws_bo_handle(struct radeon *radeon,
+					 unsigned handle)
+{
+	struct radeon_ws_bo *ws_bo = calloc(1, sizeof(struct radeon_ws_bo));
+
+	ws_bo->bo = radeon_bo(radeon, handle, 0, 0, NULL);
+	if (!ws_bo->bo) {
+		free(ws_bo);
+		return NULL;
+	}
+	pipe_reference_init(&ws_bo->reference, 1);
+	return ws_bo;
+}
+
+void *radeon_ws_bo_map(struct radeon *radeon, struct radeon_ws_bo *bo)
+{
+	radeon_bo_map(radeon, bo->bo);
+	return bo->bo->data;
+}
+
+void radeon_ws_bo_unmap(struct radeon *radeon, struct radeon_ws_bo *bo)
+{
+	radeon_bo_unmap(radeon, bo->bo);
+}
+
+static void radeon_ws_bo_destroy(struct radeon *radeon, struct radeon_ws_bo *bo)
+{
+	radeon_bo_reference(radeon, &bo->bo, NULL);
+	free(bo);
+}
+
+void radeon_ws_bo_reference(struct radeon *radeon, struct radeon_ws_bo **dst,
+			    struct radeon_ws_bo *src)
+{
+	struct radeon_ws_bo *old = *dst;
+	if (pipe_reference(&(*dst)->reference, &src->reference)) {
+		radeon_ws_bo_destroy(radeon, old);
+	}
+	*dst = src;
+}
+
+int radeon_ws_bo_wait(struct radeon *radeon, struct radeon_ws_bo *bo)
+{
+	return radeon_bo_wait(radeon, bo->bo);
+}