diff options
Diffstat (limited to 'drivers/gpu/drm/amd/scheduler/gpu_scheduler.h')
-rw-r--r-- | drivers/gpu/drm/amd/scheduler/gpu_scheduler.h | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h deleted file mode 100644 index 52c8e5447624..000000000000 --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h +++ /dev/null @@ -1,185 +0,0 @@ -/* - * 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. - * - */ - -#ifndef _GPU_SCHEDULER_H_ -#define _GPU_SCHEDULER_H_ - -#include <linux/kfifo.h> -#include <linux/dma-fence.h> - -struct amd_gpu_scheduler; -struct amd_sched_rq; - -/** - * A scheduler entity is a wrapper around a job queue or a group - * of other entities. Entities take turns emitting jobs from their - * job queues to corresponding hardware ring based on scheduling - * policy. -*/ -struct amd_sched_entity { - struct list_head list; - struct amd_sched_rq *rq; - spinlock_t rq_lock; - struct amd_gpu_scheduler *sched; - - spinlock_t queue_lock; - struct kfifo job_queue; - - atomic_t fence_seq; - uint64_t fence_context; - - struct dma_fence *dependency; - struct dma_fence_cb cb; -}; - -/** - * Run queue is a set of entities scheduling command submissions for - * one specific ring. It implements the scheduling policy that selects - * the next entity to emit commands from. -*/ -struct amd_sched_rq { - spinlock_t lock; - struct list_head entities; - struct amd_sched_entity *current_entity; -}; - -struct amd_sched_fence { - struct dma_fence scheduled; - struct dma_fence finished; - struct dma_fence_cb cb; - struct dma_fence *parent; - struct amd_gpu_scheduler *sched; - spinlock_t lock; - void *owner; -}; - -struct amd_sched_job { - struct amd_gpu_scheduler *sched; - struct amd_sched_entity *s_entity; - struct amd_sched_fence *s_fence; - struct dma_fence_cb finish_cb; - struct work_struct finish_work; - struct list_head node; - struct delayed_work work_tdr; - uint64_t id; - atomic_t karma; -}; - -extern const struct dma_fence_ops amd_sched_fence_ops_scheduled; -extern const struct dma_fence_ops amd_sched_fence_ops_finished; -static inline struct amd_sched_fence *to_amd_sched_fence(struct dma_fence *f) -{ - if (f->ops == &amd_sched_fence_ops_scheduled) - return container_of(f, struct amd_sched_fence, scheduled); - - if (f->ops == &amd_sched_fence_ops_finished) - return container_of(f, struct amd_sched_fence, finished); - - return NULL; -} - -static inline bool amd_sched_invalidate_job(struct amd_sched_job *s_job, int threshold) -{ - return (s_job && atomic_inc_return(&s_job->karma) > threshold); -} - -/** - * Define the backend operations called by the scheduler, - * these functions should be implemented in driver side -*/ -struct amd_sched_backend_ops { - struct dma_fence *(*dependency)(struct amd_sched_job *sched_job); - struct dma_fence *(*run_job)(struct amd_sched_job *sched_job); - void (*timedout_job)(struct amd_sched_job *sched_job); - void (*free_job)(struct amd_sched_job *sched_job); -}; - -enum amd_sched_priority { - AMD_SCHED_PRIORITY_MIN, - AMD_SCHED_PRIORITY_LOW = AMD_SCHED_PRIORITY_MIN, - AMD_SCHED_PRIORITY_NORMAL, - AMD_SCHED_PRIORITY_HIGH_SW, - AMD_SCHED_PRIORITY_HIGH_HW, - AMD_SCHED_PRIORITY_KERNEL, - AMD_SCHED_PRIORITY_MAX, - AMD_SCHED_PRIORITY_INVALID = -1, - AMD_SCHED_PRIORITY_UNSET = -2 -}; - -/** - * One scheduler is implemented for each hardware ring -*/ -struct amd_gpu_scheduler { - const struct amd_sched_backend_ops *ops; - uint32_t hw_submission_limit; - long timeout; - const char *name; - struct amd_sched_rq sched_rq[AMD_SCHED_PRIORITY_MAX]; - wait_queue_head_t wake_up_worker; - wait_queue_head_t job_scheduled; - atomic_t hw_rq_count; - atomic64_t job_id_count; - struct task_struct *thread; - struct list_head ring_mirror_list; - spinlock_t job_list_lock; -}; - -int amd_sched_init(struct amd_gpu_scheduler *sched, - const struct amd_sched_backend_ops *ops, - uint32_t hw_submission, long timeout, const char *name); -void amd_sched_fini(struct amd_gpu_scheduler *sched); - -int amd_sched_entity_init(struct amd_gpu_scheduler *sched, - struct amd_sched_entity *entity, - struct amd_sched_rq *rq, - uint32_t jobs); -void amd_sched_entity_fini(struct amd_gpu_scheduler *sched, - struct amd_sched_entity *entity); -void amd_sched_entity_push_job(struct amd_sched_job *sched_job); -void amd_sched_entity_set_rq(struct amd_sched_entity *entity, - struct amd_sched_rq *rq); - -int amd_sched_fence_slab_init(void); -void amd_sched_fence_slab_fini(void); - -struct amd_sched_fence *amd_sched_fence_create( - struct amd_sched_entity *s_entity, void *owner); -void amd_sched_fence_scheduled(struct amd_sched_fence *fence); -void amd_sched_fence_finished(struct amd_sched_fence *fence); -int amd_sched_job_init(struct amd_sched_job *job, - struct amd_gpu_scheduler *sched, - struct amd_sched_entity *entity, - void *owner); -void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched); -void amd_sched_job_recovery(struct amd_gpu_scheduler *sched); -bool amd_sched_dependency_optimized(struct dma_fence* fence, - struct amd_sched_entity *entity); -void amd_sched_job_kickout(struct amd_sched_job *s_job); - -static inline enum amd_sched_priority -amd_sched_get_job_priority(struct amd_sched_job *job) -{ - return (job->s_entity->rq - job->sched->sched_rq); -} - -#endif |