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>
30 static struct fence *amdgpu_sched_dependency(struct amd_sched_job *job)
32 struct amdgpu_job *sched_job = (struct amdgpu_job *)job;
33 return amdgpu_sync_get_fence(&sched_job->ibs->sync);
36 static struct fence *amdgpu_sched_run_job(struct amd_sched_job *job)
38 struct amdgpu_job *sched_job;
39 struct amdgpu_fence *fence;
43 DRM_ERROR("job is null\n");
46 sched_job = (struct amdgpu_job *)job;
47 mutex_lock(&sched_job->job_lock);
48 r = amdgpu_ib_schedule(sched_job->adev,
51 sched_job->base.owner);
54 fence = amdgpu_fence_ref(sched_job->ibs[sched_job->num_ibs - 1].fence);
56 if (sched_job->free_job)
57 sched_job->free_job(sched_job);
59 mutex_unlock(&sched_job->job_lock);
63 DRM_ERROR("Run job error\n");
64 mutex_unlock(&sched_job->job_lock);
65 job->sched->ops->process_job(job);
69 static void amdgpu_sched_process_job(struct amd_sched_job *job)
71 struct amdgpu_job *sched_job;
74 DRM_ERROR("job is null\n");
77 sched_job = (struct amdgpu_job *)job;
78 /* after processing job, free memory */
79 fence_put(&sched_job->base.s_fence->base);
83 struct amd_sched_backend_ops amdgpu_sched_ops = {
84 .dependency = amdgpu_sched_dependency,
85 .run_job = amdgpu_sched_run_job,
86 .process_job = amdgpu_sched_process_job
89 int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
90 struct amdgpu_ring *ring,
91 struct amdgpu_ib *ibs,
93 int (*free_job)(struct amdgpu_job *),
98 if (amdgpu_enable_scheduler) {
99 struct amdgpu_job *job =
100 kzalloc(sizeof(struct amdgpu_job), GFP_KERNEL);
103 job->base.sched = ring->scheduler;
104 job->base.s_entity = &adev->kernel_ctx.rings[ring->idx].entity;
107 job->num_ibs = num_ibs;
108 job->base.owner = owner;
109 mutex_init(&job->job_lock);
110 job->free_job = free_job;
111 mutex_lock(&job->job_lock);
112 r = amd_sched_entity_push_job((struct amd_sched_job *)job);
114 mutex_unlock(&job->job_lock);
118 *f = fence_get(&job->base.s_fence->base);
119 mutex_unlock(&job->job_lock);
121 r = amdgpu_ib_schedule(adev, num_ibs, ibs, owner);
124 *f = fence_get(&ibs[num_ibs - 1].fence->base);