xref: /OK3568_Linux_fs/kernel/drivers/gpu/drm/v3d/v3d_fence.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0+
2*4882a593Smuzhiyun /* Copyright (C) 2017-2018 Broadcom */
3*4882a593Smuzhiyun 
4*4882a593Smuzhiyun #include "v3d_drv.h"
5*4882a593Smuzhiyun 
v3d_fence_create(struct v3d_dev * v3d,enum v3d_queue queue)6*4882a593Smuzhiyun struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue)
7*4882a593Smuzhiyun {
8*4882a593Smuzhiyun 	struct v3d_fence *fence;
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun 	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
11*4882a593Smuzhiyun 	if (!fence)
12*4882a593Smuzhiyun 		return ERR_PTR(-ENOMEM);
13*4882a593Smuzhiyun 
14*4882a593Smuzhiyun 	fence->dev = &v3d->drm;
15*4882a593Smuzhiyun 	fence->queue = queue;
16*4882a593Smuzhiyun 	fence->seqno = ++v3d->queue[queue].emit_seqno;
17*4882a593Smuzhiyun 	dma_fence_init(&fence->base, &v3d_fence_ops, &v3d->job_lock,
18*4882a593Smuzhiyun 		       v3d->queue[queue].fence_context, fence->seqno);
19*4882a593Smuzhiyun 
20*4882a593Smuzhiyun 	return &fence->base;
21*4882a593Smuzhiyun }
22*4882a593Smuzhiyun 
v3d_fence_get_driver_name(struct dma_fence * fence)23*4882a593Smuzhiyun static const char *v3d_fence_get_driver_name(struct dma_fence *fence)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun 	return "v3d";
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun 
v3d_fence_get_timeline_name(struct dma_fence * fence)28*4882a593Smuzhiyun static const char *v3d_fence_get_timeline_name(struct dma_fence *fence)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun 	struct v3d_fence *f = to_v3d_fence(fence);
31*4882a593Smuzhiyun 
32*4882a593Smuzhiyun 	switch (f->queue) {
33*4882a593Smuzhiyun 	case V3D_BIN:
34*4882a593Smuzhiyun 		return "v3d-bin";
35*4882a593Smuzhiyun 	case V3D_RENDER:
36*4882a593Smuzhiyun 		return "v3d-render";
37*4882a593Smuzhiyun 	case V3D_TFU:
38*4882a593Smuzhiyun 		return "v3d-tfu";
39*4882a593Smuzhiyun 	case V3D_CSD:
40*4882a593Smuzhiyun 		return "v3d-csd";
41*4882a593Smuzhiyun 	default:
42*4882a593Smuzhiyun 		return NULL;
43*4882a593Smuzhiyun 	}
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun 
46*4882a593Smuzhiyun const struct dma_fence_ops v3d_fence_ops = {
47*4882a593Smuzhiyun 	.get_driver_name = v3d_fence_get_driver_name,
48*4882a593Smuzhiyun 	.get_timeline_name = v3d_fence_get_timeline_name,
49*4882a593Smuzhiyun };
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