freedreno: native fence fd support

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 42 insertions, 4 deletions

diff --git a/src/gallium/drivers/freedreno/freedreno_fence.c b/src/gallium/drivers/freedreno/freedreno_fence.c
index a5f717169f9..f20c6ac120e 100644
--- a/src/gallium/drivers/freedreno/freedreno_fence.c
+++ b/src/gallium/drivers/freedreno/freedreno_fence.c
@@ -26,6 +26,8 @@
  *    Rob Clark <[email protected]>
  */
 
+#include <libsync.h>
+
 #include "util/u_inlines.h"
 
 #include "freedreno_fence.h"
@@ -36,16 +38,23 @@ struct pipe_fence_handle {
 	struct pipe_reference reference;
 	struct fd_context *ctx;
 	struct fd_screen *screen;
+	int fence_fd;
 	uint32_t timestamp;
 };
 
-void
-fd_fence_ref(struct pipe_screen *pscreen,
+static void fd_fence_destroy(struct pipe_fence_handle *fence)
+{
+	if (fence->fence_fd != -1)
+		close(fence->fence_fd);
+	FREE(fence);
+}
+
+void fd_fence_ref(struct pipe_screen *pscreen,
 		struct pipe_fence_handle **ptr,
 		struct pipe_fence_handle *pfence)
 {
 	if (pipe_reference(&(*ptr)->reference, &pfence->reference))
-		FREE(*ptr);
+		fd_fence_destroy(*ptr);
 
 	*ptr = pfence;
 }
@@ -55,14 +64,42 @@ boolean fd_fence_finish(struct pipe_screen *pscreen,
 		struct pipe_fence_handle *fence,
 		uint64_t timeout)
 {
+	if (fence->fence_fd != -1) {
+		int ret = sync_wait(fence->fence_fd, timeout / 1000000);
+		return ret == 0;
+	}
+
 	if (fd_pipe_wait_timeout(fence->screen->pipe, fence->timestamp, timeout))
 		return false;
 
 	return true;
 }
 
+void fd_create_fence_fd(struct pipe_context *pctx,
+		struct pipe_fence_handle **pfence, int fd)
+{
+	*pfence = fd_fence_create(fd_context(pctx), 0, dup(fd));
+}
+
+void fd_fence_server_sync(struct pipe_context *pctx,
+		struct pipe_fence_handle *fence)
+{
+	struct fd_context *ctx = fd_context(pctx);
+	struct fd_batch *batch = ctx->batch;
+
+	if (sync_accumulate("freedreno", &batch->in_fence_fd, fence->fence_fd)) {
+		/* error */
+	}
+}
+
+int fd_fence_get_fd(struct pipe_screen *pscreen,
+		struct pipe_fence_handle *fence)
+{
+	return dup(fence->fence_fd);
+}
+
 struct pipe_fence_handle * fd_fence_create(struct fd_context *ctx,
-		uint32_t timestamp)
+		uint32_t timestamp, int fence_fd)
 {
 	struct pipe_fence_handle *fence;
 
@@ -75,6 +112,7 @@ struct pipe_fence_handle * fd_fence_create(struct fd_context *ctx,
 	fence->ctx = ctx;
 	fence->screen = ctx->screen;
 	fence->timestamp = timestamp;
+	fence->fence_fd = fence_fd;
 
 	return fence;
 }