summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/v3d/v3d_fence.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/v3d/v3d_fence.c')
-rw-r--r--drivers/gpu/drm/v3d/v3d_fence.c49
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,
+};