1 // SPDX-License-Identifier: GPL-2.0+
2 /* Copyright (C) 2017-2018 Broadcom */
3 
4 #include "v3d_drv.h"
5 
v3d_fence_create(struct v3d_dev * v3d,enum v3d_queue queue)6 struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue)
7 {
8 	struct v3d_fence *fence;
9 
10 	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
11 	if (!fence)
12 		return ERR_PTR(-ENOMEM);
13 
14 	fence->dev = &v3d->drm;
15 	fence->queue = queue;
16 	fence->seqno = ++v3d->queue[queue].emit_seqno;
17 	dma_fence_init(&fence->base, &v3d_fence_ops, &v3d->job_lock,
18 		       v3d->queue[queue].fence_context, fence->seqno);
19 
20 	return &fence->base;
21 }
22 
v3d_fence_get_driver_name(struct dma_fence * fence)23 static const char *v3d_fence_get_driver_name(struct dma_fence *fence)
24 {
25 	return "v3d";
26 }
27 
v3d_fence_get_timeline_name(struct dma_fence * fence)28 static const char *v3d_fence_get_timeline_name(struct dma_fence *fence)
29 {
30 	struct v3d_fence *f = to_v3d_fence(fence);
31 
32 	switch (f->queue) {
33 	case V3D_BIN:
34 		return "v3d-bin";
35 	case V3D_RENDER:
36 		return "v3d-render";
37 	case V3D_TFU:
38 		return "v3d-tfu";
39 	case V3D_CSD:
40 		return "v3d-csd";
41 	default:
42 		return NULL;
43 	}
44 }
45 
46 const struct dma_fence_ops v3d_fence_ops = {
47 	.get_driver_name = v3d_fence_get_driver_name,
48 	.get_timeline_name = v3d_fence_get_timeline_name,
49 };
50