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c1b69ed0 CZ |
1 | /* |
2 | * Copyright 2015 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 | */ | |
24 | #include <linux/kthread.h> | |
25 | #include <linux/wait.h> | |
26 | #include <linux/sched.h> | |
27 | #include <drm/drmP.h> | |
28 | #include "amdgpu.h" | |
29 | ||
30 | static int amdgpu_sched_prepare_job(struct amd_gpu_scheduler *sched, | |
31 | struct amd_context_entity *c_entity, | |
32 | void *job) | |
33 | { | |
34 | int r = 0; | |
35 | struct amdgpu_cs_parser *sched_job = (struct amdgpu_cs_parser *)job; | |
36 | if (sched_job->prepare_job) | |
37 | r = sched_job->prepare_job(sched_job); | |
38 | if (r) { | |
39 | DRM_ERROR("Prepare job error\n"); | |
40 | schedule_work(&sched_job->job_work); | |
41 | } | |
42 | return r; | |
43 | } | |
44 | ||
45 | static void amdgpu_sched_run_job(struct amd_gpu_scheduler *sched, | |
46 | struct amd_context_entity *c_entity, | |
47 | void *job) | |
48 | { | |
49 | int r = 0; | |
50 | struct amdgpu_cs_parser *sched_job = (struct amdgpu_cs_parser *)job; | |
51 | ||
52 | mutex_lock(&sched_job->job_lock); | |
53 | r = amdgpu_ib_schedule(sched_job->adev, | |
54 | sched_job->num_ibs, | |
55 | sched_job->ibs, | |
56 | sched_job->filp); | |
57 | if (r) | |
58 | goto err; | |
c1b69ed0 CZ |
59 | if (sched_job->run_job) { |
60 | r = sched_job->run_job(sched_job); | |
61 | if (r) | |
62 | goto err; | |
63 | } | |
4b559c90 | 64 | atomic64_set(&c_entity->last_emitted_v_seq, |
d1ff9086 | 65 | sched_job->ibs[sched_job->num_ibs - 1].sequence); |
4b559c90 CZ |
66 | wake_up_all(&c_entity->wait_emit); |
67 | ||
c1b69ed0 CZ |
68 | mutex_unlock(&sched_job->job_lock); |
69 | return; | |
70 | err: | |
71 | DRM_ERROR("Run job error\n"); | |
72 | mutex_unlock(&sched_job->job_lock); | |
73 | schedule_work(&sched_job->job_work); | |
74 | } | |
75 | ||
76 | static void amdgpu_sched_process_job(struct amd_gpu_scheduler *sched, void *job) | |
77 | { | |
78 | struct amdgpu_cs_parser *sched_job = NULL; | |
79 | struct amdgpu_fence *fence = NULL; | |
80 | struct amdgpu_ring *ring = NULL; | |
81 | struct amdgpu_device *adev = NULL; | |
82 | struct amd_context_entity *c_entity = NULL; | |
83 | ||
84 | if (!job) | |
85 | return; | |
86 | sched_job = (struct amdgpu_cs_parser *)job; | |
87 | fence = sched_job->ibs[sched_job->num_ibs - 1].fence; | |
88 | if (!fence) | |
89 | return; | |
90 | ring = fence->ring; | |
91 | adev = ring->adev; | |
92 | ||
93 | if (sched_job->ctx) { | |
94 | c_entity = &sched_job->ctx->rings[ring->idx].c_entity; | |
95 | atomic64_set(&c_entity->last_signaled_v_seq, | |
d1ff9086 | 96 | sched_job->ibs[sched_job->num_ibs - 1].sequence); |
c1b69ed0 CZ |
97 | } |
98 | ||
99 | /* wake up users waiting for time stamp */ | |
100 | wake_up_all(&c_entity->wait_queue); | |
101 | ||
102 | schedule_work(&sched_job->job_work); | |
103 | } | |
104 | ||
105 | struct amd_sched_backend_ops amdgpu_sched_ops = { | |
106 | .prepare_job = amdgpu_sched_prepare_job, | |
107 | .run_job = amdgpu_sched_run_job, | |
108 | .process_job = amdgpu_sched_process_job | |
109 | }; | |
110 |