1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_fence.c b/drivers/gpu/drm/v3d/v3d_fence.c
new file mode 100644
index 000000000..89840ed21
--- /dev/null
+++ b/drivers/gpu/drm/v3d/v3d_fence.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (C) 2017-2018 Broadcom */
+
+#include "v3d_drv.h"
+
+struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue)
+{
+	struct v3d_fence *fence;
+
+	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
+	if (!fence)
+		return ERR_PTR(-ENOMEM);
+
+	fence->dev = &v3d->drm;
+	fence->queue = queue;
+	fence->seqno = ++v3d->queue[queue].emit_seqno;
+	dma_fence_init(&fence->base, &v3d_fence_ops, &v3d->job_lock,
+		       v3d->queue[queue].fence_context, fence->seqno);
+
+	return &fence->base;
+}
+
+static const char *v3d_fence_get_driver_name(struct dma_fence *fence)
+{
+	return "v3d";
+}
+
+static const char *v3d_fence_get_timeline_name(struct dma_fence *fence)
+{
+	struct v3d_fence *f = to_v3d_fence(fence);
+
+	switch (f->queue) {
+	case V3D_BIN:
+		return "v3d-bin";
+	case V3D_RENDER:
+		return "v3d-render";
+	case V3D_TFU:
+		return "v3d-tfu";
+	case V3D_CSD:
+		return "v3d-csd";
+	default:
+		return NULL;
+	}
+}
+
+const struct dma_fence_ops v3d_fence_ops = {
+	.get_driver_name = v3d_fence_get_driver_name,
+	.get_timeline_name = v3d_fence_get_timeline_name,
+};