2 * Copyright 2015 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
24 #include <linux/kthread.h>
25 #include <linux/wait.h>
26 #include <linux/sched.h>
29 #include "amdgpu_trace.h"
31 int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
32 struct amdgpu_job **job)
34 size_t size = sizeof(struct amdgpu_job);
39 size += sizeof(struct amdgpu_ib) * num_ibs;
41 *job = kzalloc(size, GFP_KERNEL);
46 (*job)->ibs = (void *)&(*job)[1];
47 (*job)->num_ibs = num_ibs;
49 amdgpu_sync_create(&(*job)->sync);
54 int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
55 struct amdgpu_job **job)
59 r = amdgpu_job_alloc(adev, 1, job);
63 r = amdgpu_ib_get(adev, NULL, size, &(*job)->ibs[0]);
70 void amdgpu_job_free(struct amdgpu_job *job)
74 /* use sched fence if available */
75 f = (job->base.s_fence)? &job->base.s_fence->base : job->fence;
77 for (i = 0; i < job->num_ibs; ++i)
78 amdgpu_sa_bo_free(job->adev, &job->ibs[i].sa_bo, f);
79 fence_put(job->fence);
81 amdgpu_bo_unref(&job->uf.bo);
82 amdgpu_sync_free(&job->sync);
86 int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
87 struct amd_sched_entity *entity, void *owner,
91 job->base.sched = &ring->sched;
92 job->base.s_entity = entity;
93 job->base.s_fence = amd_sched_fence_create(job->base.s_entity, owner);
94 if (!job->base.s_fence)
97 *f = fence_get(&job->base.s_fence->base);
100 amd_sched_entity_push_job(&job->base);
105 static struct fence *amdgpu_job_dependency(struct amd_sched_job *sched_job)
107 struct amdgpu_job *job = to_amdgpu_job(sched_job);
108 struct amdgpu_vm *vm = job->ibs->vm;
110 struct fence *fence = amdgpu_sync_get_fence(&job->sync);
112 if (fence == NULL && vm && !job->ibs->vm_id) {
113 struct amdgpu_ring *ring = job->ring;
118 r = amdgpu_vm_grab_id(vm, ring, &job->sync,
119 &job->base.s_fence->base,
120 &vm_id, &vm_pd_addr);
122 DRM_ERROR("Error getting VM ID (%d)\n", r);
124 for (i = 0; i < job->num_ibs; ++i) {
125 job->ibs[i].vm_id = vm_id;
126 job->ibs[i].vm_pd_addr = vm_pd_addr;
130 fence = amdgpu_sync_get_fence(&job->sync);
136 static struct fence *amdgpu_job_run(struct amd_sched_job *sched_job)
138 struct fence *fence = NULL;
139 struct amdgpu_job *job;
143 DRM_ERROR("job is null\n");
146 job = to_amdgpu_job(sched_job);
148 r = amdgpu_sync_wait(&job->sync);
150 DRM_ERROR("failed to sync wait (%d)\n", r);
154 trace_amdgpu_sched_run_job(job);
155 r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs,
156 job->sync.last_vm_update, &fence);
158 DRM_ERROR("Error scheduling IBs (%d)\n", r);
164 amdgpu_job_free(job);
168 struct amd_sched_backend_ops amdgpu_sched_ops = {
169 .dependency = amdgpu_job_dependency,
170 .run_job = amdgpu_job_run,