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
);