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![Monk Liu](/assets/img/avatar_default.png)
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
221 lines
5.9 KiB
C
221 lines
5.9 KiB
C
/*
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* Copyright 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*
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*/
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#include <linux/kthread.h>
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#include <linux/wait.h>
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#include <linux/sched.h>
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#include <drm/drmP.h>
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#include "amdgpu.h"
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#include "amdgpu_trace.h"
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static void amdgpu_job_timedout(struct amd_sched_job *s_job)
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{
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struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base);
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DRM_ERROR("ring %s timeout, last signaled seq=%u, last emitted seq=%u\n",
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job->base.sched->name,
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atomic_read(&job->ring->fence_drv.last_seq),
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job->ring->fence_drv.sync_seq);
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if (amdgpu_sriov_vf(job->adev))
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amdgpu_sriov_gpu_reset(job->adev, job);
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else
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amdgpu_gpu_reset(job->adev);
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}
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int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
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struct amdgpu_job **job, struct amdgpu_vm *vm)
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{
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size_t size = sizeof(struct amdgpu_job);
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if (num_ibs == 0)
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return -EINVAL;
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size += sizeof(struct amdgpu_ib) * num_ibs;
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*job = kzalloc(size, GFP_KERNEL);
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if (!*job)
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return -ENOMEM;
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(*job)->adev = adev;
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(*job)->vm = vm;
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(*job)->ibs = (void *)&(*job)[1];
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(*job)->num_ibs = num_ibs;
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amdgpu_sync_create(&(*job)->sync);
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amdgpu_sync_create(&(*job)->dep_sync);
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amdgpu_sync_create(&(*job)->sched_sync);
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(*job)->vram_lost_counter = atomic_read(&adev->vram_lost_counter);
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return 0;
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}
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int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
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struct amdgpu_job **job)
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{
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int r;
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r = amdgpu_job_alloc(adev, 1, job, NULL);
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if (r)
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return r;
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r = amdgpu_ib_get(adev, NULL, size, &(*job)->ibs[0]);
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if (r)
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kfree(*job);
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else
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(*job)->vm_pd_addr = adev->gart.table_addr;
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return r;
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}
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void amdgpu_job_free_resources(struct amdgpu_job *job)
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{
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struct dma_fence *f;
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unsigned i;
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/* use sched fence if available */
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f = job->base.s_fence ? &job->base.s_fence->finished : job->fence;
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for (i = 0; i < job->num_ibs; ++i)
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amdgpu_ib_free(job->adev, &job->ibs[i], f);
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}
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static void amdgpu_job_free_cb(struct amd_sched_job *s_job)
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{
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struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base);
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amdgpu_ring_priority_put(job->ring, amd_sched_get_job_priority(s_job));
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dma_fence_put(job->fence);
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amdgpu_sync_free(&job->sync);
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amdgpu_sync_free(&job->dep_sync);
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amdgpu_sync_free(&job->sched_sync);
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kfree(job);
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}
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void amdgpu_job_free(struct amdgpu_job *job)
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{
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amdgpu_job_free_resources(job);
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dma_fence_put(job->fence);
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amdgpu_sync_free(&job->sync);
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amdgpu_sync_free(&job->dep_sync);
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amdgpu_sync_free(&job->sched_sync);
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kfree(job);
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}
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int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
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struct amd_sched_entity *entity, void *owner,
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struct dma_fence **f)
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{
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int r;
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job->ring = ring;
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if (!f)
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return -EINVAL;
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r = amd_sched_job_init(&job->base, &ring->sched, entity, owner);
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if (r)
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return r;
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job->owner = owner;
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job->fence_ctx = entity->fence_context;
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*f = dma_fence_get(&job->base.s_fence->finished);
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amdgpu_job_free_resources(job);
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amdgpu_ring_priority_get(job->ring,
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amd_sched_get_job_priority(&job->base));
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amd_sched_entity_push_job(&job->base);
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return 0;
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}
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static struct dma_fence *amdgpu_job_dependency(struct amd_sched_job *sched_job)
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{
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struct amdgpu_job *job = to_amdgpu_job(sched_job);
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struct amdgpu_vm *vm = job->vm;
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struct dma_fence *fence = amdgpu_sync_get_fence(&job->dep_sync);
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int r;
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if (amd_sched_dependency_optimized(fence, sched_job->s_entity)) {
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r = amdgpu_sync_fence(job->adev, &job->sched_sync, fence);
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if (r)
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DRM_ERROR("Error adding fence to sync (%d)\n", r);
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}
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if (!fence)
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fence = amdgpu_sync_get_fence(&job->sync);
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while (fence == NULL && vm && !job->vm_id) {
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struct amdgpu_ring *ring = job->ring;
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r = amdgpu_vm_grab_id(vm, ring, &job->sync,
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&job->base.s_fence->finished,
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job);
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if (r)
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DRM_ERROR("Error getting VM ID (%d)\n", r);
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fence = amdgpu_sync_get_fence(&job->sync);
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}
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return fence;
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}
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static struct dma_fence *amdgpu_job_run(struct amd_sched_job *sched_job)
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{
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struct dma_fence *fence = NULL;
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struct amdgpu_device *adev;
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struct amdgpu_job *job;
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int r;
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if (!sched_job) {
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DRM_ERROR("job is null\n");
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return NULL;
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}
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job = to_amdgpu_job(sched_job);
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adev = job->adev;
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BUG_ON(amdgpu_sync_peek_fence(&job->sync, NULL));
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trace_amdgpu_sched_run_job(job);
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/* skip ib schedule when vram is lost */
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if (job->vram_lost_counter != atomic_read(&adev->vram_lost_counter)) {
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dma_fence_set_error(&job->base.s_fence->finished, -ECANCELED);
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DRM_ERROR("Skip scheduling IBs!\n");
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} else {
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r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs, job,
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&fence);
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if (r)
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DRM_ERROR("Error scheduling IBs (%d)\n", r);
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}
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/* if gpu reset, hw fence will be replaced here */
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dma_fence_put(job->fence);
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job->fence = dma_fence_get(fence);
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amdgpu_job_free_resources(job);
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return fence;
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}
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const struct amd_sched_backend_ops amdgpu_sched_ops = {
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.dependency = amdgpu_job_dependency,
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.run_job = amdgpu_job_run,
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.timedout_job = amdgpu_job_timedout,
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.free_job = amdgpu_job_free_cb
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};
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