tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright © 2017 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#include "vc4_drv.h"
25
26static const char *vc4_fence_get_driver_name(struct dma_fence *fence)
27{
28 return "vc4";
29}
30
31static const char *vc4_fence_get_timeline_name(struct dma_fence *fence)
32{
33 return "vc4-v3d";
34}
35
36static bool vc4_fence_enable_signaling(struct dma_fence *fence)
37{
38 return true;
39}
40
41static bool vc4_fence_signaled(struct dma_fence *fence)
42{
43 struct vc4_fence *f = to_vc4_fence(fence);
44 struct vc4_dev *vc4 = to_vc4_dev(f->dev);
45
46 return vc4->finished_seqno >= f->seqno;
47}
48
49const struct dma_fence_ops vc4_fence_ops = {
50 .get_driver_name = vc4_fence_get_driver_name,
51 .get_timeline_name = vc4_fence_get_timeline_name,
52 .enable_signaling = vc4_fence_enable_signaling,
53 .signaled = vc4_fence_signaled,
54 .wait = dma_fence_default_wait,
55 .release = dma_fence_free,
56};