1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_fence.c b/drivers/gpu/drm/vc4/vc4_fence.c
new file mode 100644
index 000000000000..dbf5a5a5d5f5
--- /dev/null
+++ b/drivers/gpu/drm/vc4/vc4_fence.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2017 Broadcom
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT.  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.
+ */
+
+#include "vc4_drv.h"
+
+static const char *vc4_fence_get_driver_name(struct dma_fence *fence)
+{
+	return "vc4";
+}
+
+static const char *vc4_fence_get_timeline_name(struct dma_fence *fence)
+{
+	return "vc4-v3d";
+}
+
+static bool vc4_fence_enable_signaling(struct dma_fence *fence)
+{
+	return true;
+}
+
+static bool vc4_fence_signaled(struct dma_fence *fence)
+{
+	struct vc4_fence *f = to_vc4_fence(fence);
+	struct vc4_dev *vc4 = to_vc4_dev(f->dev);
+
+	return vc4->finished_seqno >= f->seqno;
+}
+
+const struct dma_fence_ops vc4_fence_ops = {
+	.get_driver_name = vc4_fence_get_driver_name,
+	.get_timeline_name = vc4_fence_get_timeline_name,
+	.enable_signaling = vc4_fence_enable_signaling,
+	.signaled = vc4_fence_signaled,
+	.wait = dma_fence_default_wait,
+	.release = dma_fence_free,
+};