tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*
2 * Copyright 2018 Advanced Micro Devices, Inc.
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 shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23#ifndef __AMDGPU_CTX_H__
24#define __AMDGPU_CTX_H__
25
26#include "amdgpu_ring.h"
27
28struct drm_device;
29struct drm_file;
30struct amdgpu_fpriv;
31
32#define AMDGPU_MAX_ENTITY_NUM 4
33
34struct amdgpu_ctx_entity {
35 uint64_t sequence;
36 struct drm_sched_entity entity;
37 struct dma_fence *fences[];
38};
39
40struct amdgpu_ctx {
41 struct kref refcount;
42 struct amdgpu_device *adev;
43 unsigned reset_counter;
44 unsigned reset_counter_query;
45 uint32_t vram_lost_counter;
46 spinlock_t ring_lock;
47 struct amdgpu_ctx_entity *entities[AMDGPU_HW_IP_NUM][AMDGPU_MAX_ENTITY_NUM];
48 bool preamble_presented;
49 enum drm_sched_priority init_priority;
50 enum drm_sched_priority override_priority;
51 struct mutex lock;
52 atomic_t guilty;
53 unsigned long ras_counter_ce;
54 unsigned long ras_counter_ue;
55};
56
57struct amdgpu_ctx_mgr {
58 struct amdgpu_device *adev;
59 struct mutex lock;
60 /* protected by lock */
61 struct idr ctx_handles;
62};
63
64extern const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM];
65
66struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id);
67int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
68
69int amdgpu_ctx_get_entity(struct amdgpu_ctx *ctx, u32 hw_ip, u32 instance,
70 u32 ring, struct drm_sched_entity **entity);
71void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
72 struct drm_sched_entity *entity,
73 struct dma_fence *fence, uint64_t *seq);
74struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
75 struct drm_sched_entity *entity,
76 uint64_t seq);
77void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx,
78 enum drm_sched_priority priority);
79
80int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
81 struct drm_file *filp);
82
83int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx,
84 struct drm_sched_entity *entity);
85
86void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr);
87void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr);
88long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout);
89void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
90
91#endif