diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_job.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c new file mode 100644 index 0000000..9c9b19e --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c @@ -0,0 +1,171 @@ +/* + * 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; + struct fence *f; + /* use sched fence if available */ + f = (job->base.s_fence)? &job->base.s_fence->base : job->fence; + + for (i = 0; i < job->num_ibs; ++i) + amdgpu_sa_bo_free(job->adev, &job->ibs[i].sa_bo, f); + fence_put(job->fence); + + 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->sync.last_vm_update, &fence); + if (r) { + DRM_ERROR("Error scheduling IBs (%d)\n", r); + goto err; + } + +err: + job->fence = fence; + amdgpu_job_free(job); + return fence; +} + +struct amd_sched_backend_ops amdgpu_sched_ops = { + .dependency = amdgpu_job_dependency, + .run_job = amdgpu_job_run, +}; |
