[linux-2.6-block.git] / 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"

int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
		     struct amdgpu_job **job)
{
	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)->ibs = (void *)&(*job)[1];
	(*job)->num_ibs = num_ibs;

	amdgpu_sync_create(&(*job)->sync);

	return 0;
}

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);
	if (r)
		return r;

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

	return r;
}

void amdgpu_job_free(struct amdgpu_job *job)
{
	unsigned i;

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

	amdgpu_bo_unref(&job->uf.bo);
	amdgpu_sync_free(&job->sync);
	kfree(job);
}

int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
		      struct amd_sched_entity *entity, void *owner,
		      struct fence **f)
{
	job->ring = ring;
	job->base.sched = &ring->sched;
	job->base.s_entity = entity;
	job->base.s_fence = amd_sched_fence_create(job->base.s_entity, owner);
	if (!job->base.s_fence)
		return -ENOMEM;

	*f = fence_get(&job->base.s_fence->base);

	job->owner = owner;
	amd_sched_entity_push_job(&job->base);

	return 0;
}

static struct fence *amdgpu_job_dependency(struct amd_sched_job *sched_job)
{
	struct amdgpu_job *job = to_amdgpu_job(sched_job);
	struct amdgpu_vm *vm = job->ibs->vm;

	struct fence *fence = amdgpu_sync_get_fence(&job->sync);

	if (fence == NULL && vm && !job->ibs->vm_id) {
		struct amdgpu_ring *ring = job->ring;
		unsigned i, vm_id;
		uint64_t vm_pd_addr;
		int r;

		r = amdgpu_vm_grab_id(vm, ring, &job->sync,
				      &job->base.s_fence->base,
				      &vm_id, &vm_pd_addr);
		if (r)
			DRM_ERROR("Error getting VM ID (%d)\n", r);
		else {
			for (i = 0; i < job->num_ibs; ++i) {
				job->ibs[i].vm_id = vm_id;
				job->ibs[i].vm_pd_addr = vm_pd_addr;
			}
		}

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

	return fence;
}

static struct fence *amdgpu_job_run(struct amd_sched_job *sched_job)
{
	struct fence *fence = NULL;
	struct amdgpu_job *job;
	int r;

	if (!sched_job) {
		DRM_ERROR("job is null\n");
		return NULL;
	}
	job = to_amdgpu_job(sched_job);

	r = amdgpu_sync_wait(&job->sync);
	if (r) {
		DRM_ERROR("failed to sync wait (%d)\n", r);
		return NULL;
	}

	trace_amdgpu_sched_run_job(job);
	r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs, job->owner,
			       job->sync.last_vm_update, &fence);
	if (r) {
		DRM_ERROR("Error scheduling IBs (%d)\n", r);
		goto err;
	}

err:
	amdgpu_job_free(job);
	return fence;
}

struct amd_sched_backend_ops amdgpu_sched_ops = {
	.dependency = amdgpu_job_dependency,
	.run_job = amdgpu_job_run,
};
Commit	Line	Data
c1b69ed0 CZ	1	/*
	2	* Copyright 2015 Advanced Micro Devices, Inc.
	3	*
	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:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	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.
	21	*
	22	*
	23	*/
	24	#include <linux/kthread.h>
	25	#include <linux/wait.h>
	26	#include <linux/sched.h>
	27	#include <drm/drmP.h>
	28	#include "amdgpu.h"
7034decf	29	#include "amdgpu_trace.h"
c1b69ed0	30
50838c8c CK	31	int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
	32	struct amdgpu_job **job)
	33	{
	34	size_t size = sizeof(struct amdgpu_job);
	35
	36	if (num_ibs == 0)
	37	return -EINVAL;
	38
	39	size += sizeof(struct amdgpu_ib) * num_ibs;
	40
	41	*job = kzalloc(size, GFP_KERNEL);
	42	if (!*job)
	43	return -ENOMEM;
	44
	45	(*job)->adev = adev;
	46	(job)->ibs = (void )&(*job)[1];
	47	(*job)->num_ibs = num_ibs;
50838c8c	48
e86f9cee CK	49	amdgpu_sync_create(&(*job)->sync);
e86f9cee CK	50
50838c8c CK	51	return 0;
	52	}
	53
d71518b5 CK	54	int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
	55	struct amdgpu_job **job)
	56	{
	57	int r;
	58
	59	r = amdgpu_job_alloc(adev, 1, job);
	60	if (r)
	61	return r;
	62
	63	r = amdgpu_ib_get(adev, NULL, size, &(*job)->ibs[0]);
	64	if (r)
	65	kfree(*job);
	66
	67	return r;
	68	}
	69
50838c8c CK	70	void amdgpu_job_free(struct amdgpu_job *job)
	71	{
	72	unsigned i;
	73
	74	for (i = 0; i < job->num_ibs; ++i)
	75	amdgpu_ib_free(job->adev, &job->ibs[i]);
	76
	77	amdgpu_bo_unref(&job->uf.bo);
e86f9cee	78	amdgpu_sync_free(&job->sync);
d71518b5 CK	79	kfree(job);
	80	}
	81
	82	int amdgpu_job_submit(struct amdgpu_job job, struct amdgpu_ring ring,
2bd9ccfa CK	83	struct amd_sched_entity entity, void owner,
2bd9ccfa CK	84	struct fence **f)
d71518b5	85	{
d71518b5 CK	86	job->ring = ring;
d71518b5 CK	87	job->base.sched = &ring->sched;
2bd9ccfa	88	job->base.s_entity = entity;
d71518b5 CK	89	job->base.s_fence = amd_sched_fence_create(job->base.s_entity, owner);
	90	if (!job->base.s_fence)
	91	return -ENOMEM;
	92
	93	*f = fence_get(&job->base.s_fence->base);
	94
	95	job->owner = owner;
	96	amd_sched_entity_push_job(&job->base);
	97
	98	return 0;
50838c8c CK	99	}
50838c8c CK	100
0856cab1	101	static struct fence amdgpu_job_dependency(struct amd_sched_job sched_job)
e61235db	102	{
a6db8a33	103	struct amdgpu_job *job = to_amdgpu_job(sched_job);
8d0a7cea CK	104	struct amdgpu_vm *vm = job->ibs->vm;
8d0a7cea CK	105
e86f9cee	106	struct fence *fence = amdgpu_sync_get_fence(&job->sync);
8d0a7cea	107
4ff37a83	108	if (fence == NULL && vm && !job->ibs->vm_id) {
b07c60c0	109	struct amdgpu_ring *ring = job->ring;
4ff37a83 CK	110	unsigned i, vm_id;
4ff37a83 CK	111	uint64_t vm_pd_addr;
8d0a7cea CK	112	int r;
8d0a7cea CK	113
e86f9cee	114	r = amdgpu_vm_grab_id(vm, ring, &job->sync,
4ff37a83 CK	115	&job->base.s_fence->base,
4ff37a83 CK	116	&vm_id, &vm_pd_addr);
94dd0a4a	117	if (r)
8d0a7cea	118	DRM_ERROR("Error getting VM ID (%d)\n", r);
4ff37a83 CK	119	else {
	120	for (i = 0; i < job->num_ibs; ++i) {
	121	job->ibs[i].vm_id = vm_id;
	122	job->ibs[i].vm_pd_addr = vm_pd_addr;
	123	}
	124	}
8d0a7cea	125
e86f9cee	126	fence = amdgpu_sync_get_fence(&job->sync);
8d0a7cea CK	127	}
	128
	129	return fence;
e61235db CK	130	}
e61235db CK	131
0856cab1	132	static struct fence amdgpu_job_run(struct amd_sched_job sched_job)
c1b69ed0	133	{
ec72b800	134	struct fence *fence = NULL;
4c7eb91c	135	struct amdgpu_job *job;
bd755d08	136	int r;
c1b69ed0	137
4c7eb91c	138	if (!sched_job) {
4cef9267	139	DRM_ERROR("job is null\n");
6f0e54a9	140	return NULL;
4cef9267	141	}
a6db8a33	142	job = to_amdgpu_job(sched_job);
e86f9cee CK	143
	144	r = amdgpu_sync_wait(&job->sync);
	145	if (r) {
	146	DRM_ERROR("failed to sync wait (%d)\n", r);
	147	return NULL;
	148	}
	149
7034decf	150	trace_amdgpu_sched_run_job(job);
e86f9cee CK	151	r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs, job->owner,
e86f9cee CK	152	job->sync.last_vm_update, &fence);
1886d1a9 CK	153	if (r) {
1886d1a9 CK	154	DRM_ERROR("Error scheduling IBs (%d)\n", r);
c1b69ed0	155	goto err;
1886d1a9 CK	156	}
1886d1a9 CK	157
1886d1a9	158	err:
d71518b5	159	amdgpu_job_free(job);
ec72b800	160	return fence;
c1b69ed0 CZ	161	}
	162
	163	struct amd_sched_backend_ops amdgpu_sched_ops = {
0856cab1 CK	164	.dependency = amdgpu_job_dependency,
0856cab1 CK	165	.run_job = amdgpu_job_run,
c1b69ed0	166	};