1 files changed, 87 insertions, 0 deletions
diff --git a/src/gallium/drivers/etnaviv/etnaviv_fence.c b/src/gallium/drivers/etnaviv/etnaviv_fence.c
new file mode 100644
index 00000000000..02f520b8b32
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_fence.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2012-2015 Etnaviv Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Wladimir J. van der Laan <[email protected]>
+ *    Rob Clark <[email protected]>
+ */
+
+#include "etnaviv_fence.h"
+#include "etnaviv_context.h"
+#include "etnaviv_screen.h"
+
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+
+struct pipe_fence_handle {
+   struct pipe_reference reference;
+   struct etna_context *ctx;
+   struct etna_screen *screen;
+   uint32_t timestamp;
+};
+
+static void
+etna_screen_fence_reference(struct pipe_screen *pscreen,
+                            struct pipe_fence_handle **ptr,
+                            struct pipe_fence_handle *fence)
+{
+   if (pipe_reference(&(*ptr)->reference, &fence->reference))
+      FREE(*ptr);
+
+   *ptr = fence;
+}
+
+static boolean
+etna_screen_fence_finish(struct pipe_screen *pscreen, struct pipe_context *ctx,
+                         struct pipe_fence_handle *fence, uint64_t timeout)
+{
+   if (etna_pipe_wait_ns(fence->screen->pipe, fence->timestamp, timeout))
+      return false;
+
+   return true;
+}
+
+struct pipe_fence_handle *
+etna_fence_create(struct pipe_context *pctx)
+{
+   struct pipe_fence_handle *fence;
+   struct etna_context *ctx = etna_context(pctx);
+
+   fence = CALLOC_STRUCT(pipe_fence_handle);
+   if (!fence)
+      return NULL;
+
+   pipe_reference_init(&fence->reference, 1);
+
+   fence->ctx = ctx;
+   fence->screen = ctx->screen;
+   fence->timestamp = etna_cmd_stream_timestamp(ctx->stream);
+
+   return fence;
+}
+
+void
+etna_fence_screen_init(struct pipe_screen *pscreen)
+{
+   pscreen->fence_reference = etna_screen_fence_reference;
+   pscreen->fence_finish = etna_screen_fence_finish;
+}