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
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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 static struct fence *amdgpu_sched_dependency(struct amd_sched_job *sched_job)
33 struct amdgpu_job *job = to_amdgpu_job(sched_job);
34 return amdgpu_sync_get_fence(&job->ibs->sync);
37 static struct fence *amdgpu_sched_run_job(struct amd_sched_job *sched_job)
39 struct amdgpu_fence *fence = NULL;
40 struct amdgpu_job *job;
44 DRM_ERROR("job is null\n");
47 job = to_amdgpu_job(sched_job);
48 trace_amdgpu_sched_run_job(job);
49 r = amdgpu_ib_schedule(job->adev, job->num_ibs, job->ibs, job->owner);
51 DRM_ERROR("Error scheduling IBs (%d)\n", r);
55 fence = job->ibs[job->num_ibs - 1].fence;
56 fence_get(&fence->base);
63 return fence ? &fence->base : NULL;
66 struct amd_sched_backend_ops amdgpu_sched_ops = {
67 .dependency = amdgpu_sched_dependency,
68 .run_job = amdgpu_sched_run_job,
71 int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
72 struct amdgpu_ring *ring,
73 struct amdgpu_ib *ibs,
75 int (*free_job)(struct amdgpu_job *),
80 if (amdgpu_enable_scheduler) {
81 struct amdgpu_job *job =
82 kzalloc(sizeof(struct amdgpu_job), GFP_KERNEL);
85 job->base.sched = &ring->sched;
86 job->base.s_entity = &adev->kernel_ctx.rings[ring->idx].entity;
87 job->base.s_fence = amd_sched_fence_create(job->base.s_entity, owner);
88 if (!job->base.s_fence) {
92 *f = fence_get(&job->base.s_fence->base);
96 job->num_ibs = num_ibs;
98 job->free_job = free_job;
99 amd_sched_entity_push_job(&job->base);
101 r = amdgpu_ib_schedule(adev, num_ibs, ibs, owner);
104 *f = fence_get(&ibs[num_ibs - 1].fence->base);