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1 | /* |
2 | * Copyright (C) 2013-2016 Red Hat | |
3 | * Author: Rob Clark <robdclark@gmail.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published by | |
7 | * the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #ifndef __MSM_FENCE_H__ | |
19 | #define __MSM_FENCE_H__ | |
20 | ||
21 | #include "msm_drv.h" | |
22 | ||
ca762a8a RC |
23 | struct msm_fence_context { |
24 | struct drm_device *dev; | |
25 | const char *name; | |
b6295f9a | 26 | unsigned context; |
ca762a8a RC |
27 | /* last_fence == completed_fence --> no pending work */ |
28 | uint32_t last_fence; /* last assigned fence */ | |
29 | uint32_t completed_fence; /* last completed fence */ | |
30 | wait_queue_head_t event; | |
b6295f9a | 31 | spinlock_t spinlock; |
ca762a8a RC |
32 | }; |
33 | ||
34 | struct msm_fence_context * msm_fence_context_alloc(struct drm_device *dev, | |
35 | const char *name); | |
36 | void msm_fence_context_free(struct msm_fence_context *fctx); | |
37 | ||
ca762a8a | 38 | int msm_wait_fence(struct msm_fence_context *fctx, uint32_t fence, |
fde5de6c | 39 | ktime_t *timeout, bool interruptible); |
ca762a8a | 40 | int msm_queue_fence_cb(struct msm_fence_context *fctx, |
fde5de6c | 41 | struct msm_fence_cb *cb, uint32_t fence); |
ca762a8a | 42 | void msm_update_fence(struct msm_fence_context *fctx, uint32_t fence); |
fde5de6c | 43 | |
b6295f9a RC |
44 | struct fence * msm_fence_alloc(struct msm_fence_context *fctx); |
45 | ||
fde5de6c | 46 | #endif |