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 *sched_job)
32 struct amdgpu_job *job = to_amdgpu_job(sched_job);
33 return amdgpu_sync_get_fence(&job->ibs->sync);
36 static struct fence *amdgpu_sched_run_job(struct amd_sched_job *sched_job)
38 struct amdgpu_fence *fence = NULL;
39 struct amdgpu_job *job;
43 DRM_ERROR("job is null\n");
46 job = to_amdgpu_job(sched_job);
47 mutex_lock(&job->job_lock);
48 r = amdgpu_ib_schedule(job->adev,
53 DRM_ERROR("Error scheduling IBs (%d)\n", r);
57 fence = job->ibs[job->num_ibs - 1].fence;
58 fence_get(&fence->base);
64 mutex_unlock(&job->job_lock);
65 fence_put(&job->base.s_fence->base);
67 return fence ? &fence->base : NULL;
70 struct amd_sched_backend_ops amdgpu_sched_ops = {
71 .dependency = amdgpu_sched_dependency,
72 .run_job = amdgpu_sched_run_job,
75 int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
76 struct amdgpu_ring *ring,
77 struct amdgpu_ib *ibs,
79 int (*free_job)(struct amdgpu_job *),
84 if (amdgpu_enable_scheduler) {
85 struct amdgpu_job *job =
86 kzalloc(sizeof(struct amdgpu_job), GFP_KERNEL);
89 job->base.sched = &ring->sched;
90 job->base.s_entity = &adev->kernel_ctx.rings[ring->idx].entity;
93 job->num_ibs = num_ibs;
94 job->base.owner = owner;
95 mutex_init(&job->job_lock);
96 job->free_job = free_job;
97 mutex_lock(&job->job_lock);
98 r = amd_sched_entity_push_job(&job->base);
100 mutex_unlock(&job->job_lock);
104 *f = fence_get(&job->base.s_fence->base);
105 mutex_unlock(&job->job_lock);
107 r = amdgpu_ib_schedule(adev, num_ibs, ibs, owner);
110 *f = fence_get(&ibs[num_ibs - 1].fence->base);