Release 4.17 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c

/*
 * Copyright 2015 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 *
 */
#include <linux/kthread.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include <drm/drmP.h>
#include "amdgpu.h"
#include "amdgpu_trace.h"



static void amdgpu_job_timedout(struct drm_sched_job *s_job)
{
	struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base);

	DRM_ERROR("ring %s timeout, last signaled seq=%u, last emitted seq=%u\n",
		  job->base.sched->name,
		  atomic_read(&job->ring->fence_drv.last_seq),
		  job->ring->fence_drv.sync_seq);

	amdgpu_device_gpu_recover(job->adev, job, false);
}

Contributors
Person
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CommitProp
Monk Liu
62
88.57%
3
42.86%
Christian König
4
5.71%
1
14.29%
Andrey Grodzovsky
2
2.86%
1
14.29%
Alex Deucher
1
1.43%
1
14.29%
Lucas Stach
1
1.43%
1
14.29%
Total
70
100.00%
7
100.00%



int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
		     struct amdgpu_job **job, struct amdgpu_vm *vm)
{
	size_t size = sizeof(struct amdgpu_job);

	if (num_ibs == 0)
		return -EINVAL;

	size += sizeof(struct amdgpu_ib) * num_ibs;

	*job = kzalloc(size, GFP_KERNEL);
	if (!*job)
		return -ENOMEM;

	(*job)->adev = adev;
	(*job)->vm = vm;
	(*job)->ibs = (void *)&(*job)[1];
	(*job)->num_ibs = num_ibs;

	amdgpu_sync_create(&(*job)->sync);
	amdgpu_sync_create(&(*job)->sched_sync);
	(*job)->vram_lost_counter = atomic_read(&adev->vram_lost_counter);

	return 0;
}

Contributors
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Tokens
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Commits
CommitProp
Christian König
124
77.50%
4
50.00%
Monk Liu
27
16.88%
2
25.00%
Chunming Zhou
9
5.62%
2
25.00%
Total
160
100.00%
8
100.00%



int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
			     struct amdgpu_job **job)
{
	int r;

	r = amdgpu_job_alloc(adev, 1, job, NULL);
	if (r)
		return r;

	r = amdgpu_ib_get(adev, NULL, size, &(*job)->ibs[0]);
	if (r)
		kfree(*job);
	else
		(*job)->vm_pd_addr = adev->gart.table_addr;

	return r;
}

Contributors
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Tokens
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Commits
CommitProp
Christian König
89
97.80%
3
75.00%
Monk Liu
2
2.20%
1
25.00%
Total
91
100.00%
4
100.00%



void amdgpu_job_free_resources(struct amdgpu_job *job)
{
	struct dma_fence *f;
	unsigned i;

	/* use sched fence if available */
	f = job->base.s_fence ? &job->base.s_fence->finished : job->fence;

	for (i = 0; i < job->num_ibs; ++i)
		amdgpu_ib_free(job->adev, &job->ibs[i], f);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian König
42
58.33%
5
62.50%
Monk Liu
29
40.28%
2
25.00%
Chris Wilson
1
1.39%
1
12.50%
Total
72
100.00%
8
100.00%



static void amdgpu_job_free_cb(struct drm_sched_job *s_job)
{
	struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base);

	amdgpu_ring_priority_put(job->ring, s_job->s_priority);
	dma_fence_put(job->fence);
	amdgpu_sync_free(&job->sync);
	amdgpu_sync_free(&job->sched_sync);
	kfree(job);
}

Contributors
Person
Tokens
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Commits
CommitProp
Monk Liu
26
40.00%
1
11.11%
Christian König
17
26.15%
2
22.22%
Andres Rodriguez
9
13.85%
1
11.11%
Chunming Zhou
8
12.31%
1
11.11%
Andrey Grodzovsky
2
3.08%
1
11.11%
Baoyou Xie
1
1.54%
1
11.11%
Chris Wilson
1
1.54%
1
11.11%
Lucas Stach
1
1.54%
1
11.11%
Total
65
100.00%
9
100.00%



void amdgpu_job_free(struct amdgpu_job *job)
{
	amdgpu_job_free_resources(job);

	dma_fence_put(job->fence);
	amdgpu_sync_free(&job->sync);
	amdgpu_sync_free(&job->sched_sync);
	kfree(job);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian König
34
79.07%
2
50.00%
Chunming Zhou
8
18.60%
1
25.00%
Chris Wilson
1
2.33%
1
25.00%
Total
43
100.00%
4
100.00%



int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
		      struct drm_sched_entity *entity, void *owner,
		      struct dma_fence **f)
{
	int r;
	job->ring = ring;

	if (!f)
		return -EINVAL;

	r = drm_sched_job_init(&job->base, &ring->sched, entity, owner);
	if (r)
		return r;

	job->owner = owner;
	job->fence_ctx = entity->fence_context;
	*f = dma_fence_get(&job->base.s_fence->finished);
	amdgpu_job_free_resources(job);
	amdgpu_ring_priority_get(job->ring, job->base.s_priority);
	drm_sched_entity_push_job(&job->base, entity);

	return 0;
}

Contributors
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CommitProp
Christian König
86
64.18%
6
42.86%
Monk Liu
28
20.90%
3
21.43%
Andres Rodriguez
11
8.21%
1
7.14%
Andrey Grodzovsky
4
2.99%
2
14.29%
Lucas Stach
3
2.24%
1
7.14%
Chris Wilson
2
1.49%
1
7.14%
Total
134
100.00%
14
100.00%



static struct dma_fence *amdgpu_job_dependency(struct drm_sched_job *sched_job,
					       struct drm_sched_entity *s_entity)
{
	struct amdgpu_job *job = to_amdgpu_job(sched_job);
	struct amdgpu_vm *vm = job->vm;
	bool explicit = false;
	int r;
	struct dma_fence *fence = amdgpu_sync_get_fence(&job->sync, &explicit);

	if (fence && explicit) {
		if (drm_sched_dependency_optimized(fence, s_entity)) {
			r = amdgpu_sync_fence(job->adev, &job->sched_sync, fence, false);
			if (r)
				DRM_ERROR("Error adding fence to sync (%d)\n", r);
		}
	}

	while (fence == NULL && vm && !job->vmid) {
		struct amdgpu_ring *ring = job->ring;

		r = amdgpu_vmid_grab(vm, ring, &job->sync,
				     &job->base.s_fence->finished,
				     job);
		if (r)
			DRM_ERROR("Error getting VM ID (%d)\n", r);

		fence = amdgpu_sync_get_fence(&job->sync, NULL);
	}

	return fence;
}

Contributors
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CommitProp
Christian König
106
57.61%
10
55.56%
Chunming Zhou
38
20.65%
2
11.11%
Andrey Grodzovsky
28
15.22%
2
11.11%
Junwei (Martin) Zhang
7
3.80%
2
11.11%
Lucas Stach
3
1.63%
1
5.56%
Chris Wilson
2
1.09%
1
5.56%
Total
184
100.00%
18
100.00%



static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
{
	struct dma_fence *fence = NULL, *finished;
	struct amdgpu_device *adev;
	struct amdgpu_job *job;
	int r;

	if (!sched_job) {
		DRM_ERROR("job is null\n");
		return NULL;
	}
	job = to_amdgpu_job(sched_job);
	finished = &job->base.s_fence->finished;
	adev = job->adev;

	BUG_ON(amdgpu_sync_peek_fence(&job->sync, NULL));

	trace_amdgpu_sched_run_job(job);

	if (job->vram_lost_counter != atomic_read(&adev->vram_lost_counter))
		dma_fence_set_error(finished, -ECANCELED);/* skip IB as well if VRAM lost */

	if (finished->error < 0) {
		DRM_INFO("Skip scheduling IBs!\n");
	} else {
		r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs, job,
				       &fence);
		if (r)
			DRM_ERROR("Error scheduling IBs (%d)\n", r);
	}
	/* if gpu reset, hw fence will be replaced here */
	dma_fence_put(job->fence);
	job->fence = dma_fence_get(fence);

	amdgpu_job_free_resources(job);
	return fence;
}

Contributors
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Tokens
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Commits
CommitProp
Chunming Zhou
75
39.06%
6
23.08%
Christian König
69
35.94%
13
50.00%
Monk Liu
32
16.67%
3
11.54%
Junwei (Martin) Zhang
11
5.73%
2
7.69%
Chris Wilson
4
2.08%
1
3.85%
Lucas Stach
1
0.52%
1
3.85%
Total
192
100.00%
26
100.00%


const struct drm_sched_backend_ops amdgpu_sched_ops = {
	.dependency = amdgpu_job_dependency,
	.run_job = amdgpu_job_run,
	.timedout_job = amdgpu_job_timedout,
	.free_job = amdgpu_job_free_cb
};
Overall Contributors
Person
Tokens
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Commits
CommitProp
Christian König
588
55.63%
33
50.00%
Monk Liu
206
19.49%
12
18.18%
Chunming Zhou
165
15.61%
9
13.64%
Andrey Grodzovsky
36
3.41%
4
6.06%
Andres Rodriguez
20
1.89%
1
1.52%
Junwei (Martin) Zhang
18
1.70%
2
3.03%
Chris Wilson
11
1.04%
1
1.52%
Lucas Stach
10
0.95%
1
1.52%
Alex Deucher
1
0.09%
1
1.52%
Nils Wallménius
1
0.09%
1
1.52%
Baoyou Xie
1
0.09%
1
1.52%
Total
1057
100.00%
66
100.00%
Directory: drivers/gpu/drm/amd/amdgpu

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