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/*
* 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"
static struct fence *amdgpu_sched_dependency(struct amd_sched_job *sched_job)
{
struct amdgpu_job *job = to_amdgpu_job(sched_job);
return amdgpu_sync_get_fence(&job->ibs->sync);
}
static struct fence *amdgpu_sched_run_job(struct amd_sched_job *sched_job)
{
struct amdgpu_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);
mutex_lock(&job->job_lock);
r = amdgpu_ib_schedule(job->adev,
job->num_ibs,
job->ibs,
job->base.owner);
if (r) {
DRM_ERROR("Error scheduling IBs (%d)\n", r);
goto err;
}
fence = amdgpu_fence_ref(job->ibs[job->num_ibs - 1].fence);
err:
if (job->free_job)
job->free_job(job);
mutex_unlock(&job->job_lock);
fence_put(&job->base.s_fence->base);
kfree(job);
return fence ? &fence->base : NULL;
}
struct amd_sched_backend_ops amdgpu_sched_ops = {
.dependency = amdgpu_sched_dependency,
.run_job = amdgpu_sched_run_job,
};
int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
struct amdgpu_ring *ring,
struct amdgpu_ib *ibs,
unsigned num_ibs,
int (*free_job)(struct amdgpu_job *),
void *owner,
struct fence **f)
{
int r = 0;
if (amdgpu_enable_scheduler) {
struct amdgpu_job *job =
kzalloc(sizeof(struct amdgpu_job), GFP_KERNEL);
if (!job)
return -ENOMEM;
job->base.sched = &ring->sched;
job->base.s_entity = &adev->kernel_ctx.rings[ring->idx].entity;
job->adev = adev;
job->ibs = ibs;
job->num_ibs = num_ibs;
job->base.owner = owner;
mutex_init(&job->job_lock);
job->free_job = free_job;
mutex_lock(&job->job_lock);
r = amd_sched_entity_push_job(&job->base);
if (r) {
mutex_unlock(&job->job_lock);
kfree(job);
return r;
}
*f = fence_get(&job->base.s_fence->base);
mutex_unlock(&job->job_lock);
} else {
r = amdgpu_ib_schedule(adev, num_ibs, ibs, owner);
if (r)
return r;
*f = fence_get(&ibs[num_ibs - 1].fence->base);
}
return 0;
}
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