11b1f42d8SLucas Stach /* 21b1f42d8SLucas Stach * Copyright 2015 Advanced Micro Devices, Inc. 31b1f42d8SLucas Stach * 41b1f42d8SLucas Stach * Permission is hereby granted, free of charge, to any person obtaining a 51b1f42d8SLucas Stach * copy of this software and associated documentation files (the "Software"), 61b1f42d8SLucas Stach * to deal in the Software without restriction, including without limitation 71b1f42d8SLucas Stach * the rights to use, copy, modify, merge, publish, distribute, sublicense, 81b1f42d8SLucas Stach * and/or sell copies of the Software, and to permit persons to whom the 91b1f42d8SLucas Stach * Software is furnished to do so, subject to the following conditions: 101b1f42d8SLucas Stach * 111b1f42d8SLucas Stach * The above copyright notice and this permission notice shall be included in 121b1f42d8SLucas Stach * all copies or substantial portions of the Software. 131b1f42d8SLucas Stach * 141b1f42d8SLucas Stach * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 151b1f42d8SLucas Stach * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 161b1f42d8SLucas Stach * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 171b1f42d8SLucas Stach * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 181b1f42d8SLucas Stach * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 191b1f42d8SLucas Stach * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 201b1f42d8SLucas Stach * OTHER DEALINGS IN THE SOFTWARE. 211b1f42d8SLucas Stach * 221b1f42d8SLucas Stach */ 231b1f42d8SLucas Stach 241b1f42d8SLucas Stach #ifndef _DRM_GPU_SCHEDULER_H_ 251b1f42d8SLucas Stach #define _DRM_GPU_SCHEDULER_H_ 261b1f42d8SLucas Stach 271b1f42d8SLucas Stach #include <drm/spsc_queue.h> 281b1f42d8SLucas Stach #include <linux/dma-fence.h> 29dc10218dSStephen Rothwell #include <linux/completion.h> 301b1f42d8SLucas Stach 31741f01e6SAndrey Grodzovsky #define MAX_WAIT_SCHED_ENTITY_Q_EMPTY msecs_to_jiffies(1000) 32741f01e6SAndrey Grodzovsky 331b1f42d8SLucas Stach struct drm_gpu_scheduler; 341b1f42d8SLucas Stach struct drm_sched_rq; 351b1f42d8SLucas Stach 36e2d732fdSLuben Tuikov /* These are often used as an (initial) index 37e2d732fdSLuben Tuikov * to an array, and as such should start at 0. 38e2d732fdSLuben Tuikov */ 391b1f42d8SLucas Stach enum drm_sched_priority { 401b1f42d8SLucas Stach DRM_SCHED_PRIORITY_MIN, 411b1f42d8SLucas Stach DRM_SCHED_PRIORITY_NORMAL, 42e2d732fdSLuben Tuikov DRM_SCHED_PRIORITY_HIGH, 431b1f42d8SLucas Stach DRM_SCHED_PRIORITY_KERNEL, 44e2d732fdSLuben Tuikov 45e2d732fdSLuben Tuikov DRM_SCHED_PRIORITY_COUNT, 461b1f42d8SLucas Stach DRM_SCHED_PRIORITY_INVALID = -1, 471b1f42d8SLucas Stach DRM_SCHED_PRIORITY_UNSET = -2 481b1f42d8SLucas Stach }; 491b1f42d8SLucas Stach 501b1f42d8SLucas Stach /** 512d33948eSNayan Deshmukh * struct drm_sched_entity - A wrapper around a job queue (typically 522d33948eSNayan Deshmukh * attached to the DRM file_priv). 532d33948eSNayan Deshmukh * 542d33948eSNayan Deshmukh * @list: used to append this struct to the list of entities in the 552d33948eSNayan Deshmukh * runqueue. 56ac0a6cf1SNayan Deshmukh * @rq: runqueue on which this entity is currently scheduled. 572639f453SNirmoy Das * @sched_list: A list of schedulers (drm_gpu_schedulers). 582639f453SNirmoy Das * Jobs from this entity can be scheduled on any scheduler 592639f453SNirmoy Das * on this list. 609e3e90c5SNirmoy Das * @num_sched_list: number of drm_gpu_schedulers in the sched_list. 61fa3d55a1SSam Ravnborg * @priority: priority of the entity 622d33948eSNayan Deshmukh * @rq_lock: lock to modify the runqueue to which this entity belongs. 632d33948eSNayan Deshmukh * @job_queue: the list of jobs of this entity. 642d33948eSNayan Deshmukh * @fence_seq: a linearly increasing seqno incremented with each 652d33948eSNayan Deshmukh * new &drm_sched_fence which is part of the entity. 662d33948eSNayan Deshmukh * @fence_context: a unique context for all the fences which belong 672d33948eSNayan Deshmukh * to this entity. 682d33948eSNayan Deshmukh * The &drm_sched_fence.scheduled uses the 692d33948eSNayan Deshmukh * fence_context but &drm_sched_fence.finished uses 702d33948eSNayan Deshmukh * fence_context + 1. 712d33948eSNayan Deshmukh * @dependency: the dependency fence of the job which is on the top 722d33948eSNayan Deshmukh * of the job queue. 732d33948eSNayan Deshmukh * @cb: callback for the dependency fence above. 742d33948eSNayan Deshmukh * @guilty: points to ctx's guilty. 752d33948eSNayan Deshmukh * @fini_status: contains the exit status in case the process was signalled. 762d33948eSNayan Deshmukh * @last_scheduled: points to the finished fence of the last scheduled job. 7743bce41cSChristian König * @last_user: last group leader pushing a job into the entity. 7862347a33SAndrey Grodzovsky * @stopped: Marks the enity as removed from rq and destined for termination. 7983a7772bSAndrey Grodzovsky * @entity_idle: Signals when enityt is not in use 801a61ee07SEric Anholt * 811a61ee07SEric Anholt * Entities will emit jobs in order to their corresponding hardware 821a61ee07SEric Anholt * ring, and the scheduler will alternate between entities based on 831a61ee07SEric Anholt * scheduling policy. 841b1f42d8SLucas Stach */ 851b1f42d8SLucas Stach struct drm_sched_entity { 861b1f42d8SLucas Stach struct list_head list; 871b1f42d8SLucas Stach struct drm_sched_rq *rq; 88b3ac1766SNirmoy Das struct drm_gpu_scheduler **sched_list; 899e3e90c5SNirmoy Das unsigned int num_sched_list; 90b3ac1766SNirmoy Das enum drm_sched_priority priority; 911b1f42d8SLucas Stach spinlock_t rq_lock; 921b1f42d8SLucas Stach 931b1f42d8SLucas Stach struct spsc_queue job_queue; 941b1f42d8SLucas Stach 951b1f42d8SLucas Stach atomic_t fence_seq; 961b1f42d8SLucas Stach uint64_t fence_context; 971b1f42d8SLucas Stach 981b1f42d8SLucas Stach struct dma_fence *dependency; 991b1f42d8SLucas Stach struct dma_fence_cb cb; 1002d33948eSNayan Deshmukh atomic_t *guilty; 1018ee3a52eSEmily Deng struct dma_fence *last_scheduled; 10243bce41cSChristian König struct task_struct *last_user; 10362347a33SAndrey Grodzovsky bool stopped; 10483a7772bSAndrey Grodzovsky struct completion entity_idle; 1051b1f42d8SLucas Stach }; 1061b1f42d8SLucas Stach 1071b1f42d8SLucas Stach /** 1082d33948eSNayan Deshmukh * struct drm_sched_rq - queue of entities to be scheduled. 1092d33948eSNayan Deshmukh * 1102d33948eSNayan Deshmukh * @lock: to modify the entities list. 1118dc9fbbfSNayan Deshmukh * @sched: the scheduler to which this rq belongs to. 1122d33948eSNayan Deshmukh * @entities: list of the entities to be scheduled. 1132d33948eSNayan Deshmukh * @current_entity: the entity which is to be scheduled. 1142d33948eSNayan Deshmukh * 1151b1f42d8SLucas Stach * Run queue is a set of entities scheduling command submissions for 1161b1f42d8SLucas Stach * one specific ring. It implements the scheduling policy that selects 1171b1f42d8SLucas Stach * the next entity to emit commands from. 1181b1f42d8SLucas Stach */ 1191b1f42d8SLucas Stach struct drm_sched_rq { 1201b1f42d8SLucas Stach spinlock_t lock; 1218dc9fbbfSNayan Deshmukh struct drm_gpu_scheduler *sched; 1221b1f42d8SLucas Stach struct list_head entities; 1231b1f42d8SLucas Stach struct drm_sched_entity *current_entity; 1241b1f42d8SLucas Stach }; 1251b1f42d8SLucas Stach 1262d33948eSNayan Deshmukh /** 1272d33948eSNayan Deshmukh * struct drm_sched_fence - fences corresponding to the scheduling of a job. 1282d33948eSNayan Deshmukh */ 1291b1f42d8SLucas Stach struct drm_sched_fence { 1302d33948eSNayan Deshmukh /** 1312d33948eSNayan Deshmukh * @scheduled: this fence is what will be signaled by the scheduler 1322d33948eSNayan Deshmukh * when the job is scheduled. 1332d33948eSNayan Deshmukh */ 1341b1f42d8SLucas Stach struct dma_fence scheduled; 1351a61ee07SEric Anholt 1362d33948eSNayan Deshmukh /** 1372d33948eSNayan Deshmukh * @finished: this fence is what will be signaled by the scheduler 1382d33948eSNayan Deshmukh * when the job is completed. 1391a61ee07SEric Anholt * 1401a61ee07SEric Anholt * When setting up an out fence for the job, you should use 1411a61ee07SEric Anholt * this, since it's available immediately upon 1421a61ee07SEric Anholt * drm_sched_job_init(), and the fence returned by the driver 1431a61ee07SEric Anholt * from run_job() won't be created until the dependencies have 1441a61ee07SEric Anholt * resolved. 1451a61ee07SEric Anholt */ 1461b1f42d8SLucas Stach struct dma_fence finished; 1471a61ee07SEric Anholt 1482d33948eSNayan Deshmukh /** 1492d33948eSNayan Deshmukh * @parent: the fence returned by &drm_sched_backend_ops.run_job 1502d33948eSNayan Deshmukh * when scheduling the job on hardware. We signal the 1512d33948eSNayan Deshmukh * &drm_sched_fence.finished fence once parent is signalled. 1522d33948eSNayan Deshmukh */ 1531b1f42d8SLucas Stach struct dma_fence *parent; 1542d33948eSNayan Deshmukh /** 1552d33948eSNayan Deshmukh * @sched: the scheduler instance to which the job having this struct 1562d33948eSNayan Deshmukh * belongs to. 1572d33948eSNayan Deshmukh */ 1581b1f42d8SLucas Stach struct drm_gpu_scheduler *sched; 1592d33948eSNayan Deshmukh /** 1602d33948eSNayan Deshmukh * @lock: the lock used by the scheduled and the finished fences. 1612d33948eSNayan Deshmukh */ 1621b1f42d8SLucas Stach spinlock_t lock; 1632d33948eSNayan Deshmukh /** 1642d33948eSNayan Deshmukh * @owner: job owner for debugging 1652d33948eSNayan Deshmukh */ 1661b1f42d8SLucas Stach void *owner; 1671b1f42d8SLucas Stach }; 1681b1f42d8SLucas Stach 1691b1f42d8SLucas Stach struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f); 1701b1f42d8SLucas Stach 1711a61ee07SEric Anholt /** 1722d33948eSNayan Deshmukh * struct drm_sched_job - A job to be run by an entity. 1732d33948eSNayan Deshmukh * 1742d33948eSNayan Deshmukh * @queue_node: used to append this struct to the queue of jobs in an entity. 1752d33948eSNayan Deshmukh * @sched: the scheduler instance on which this job is scheduled. 1762d33948eSNayan Deshmukh * @s_fence: contains the fences for the scheduling of job. 1772d33948eSNayan Deshmukh * @finish_cb: the callback for the finished fence. 1782d33948eSNayan Deshmukh * @node: used to append this struct to the @drm_gpu_scheduler.ring_mirror_list. 1792d33948eSNayan Deshmukh * @id: a unique id assigned to each job scheduled on the scheduler. 1802d33948eSNayan Deshmukh * @karma: increment on every hang caused by this job. If this exceeds the hang 1812d33948eSNayan Deshmukh * limit of the scheduler then the job is marked guilty and will not 1822d33948eSNayan Deshmukh * be scheduled further. 1832d33948eSNayan Deshmukh * @s_priority: the priority of the job. 1842d33948eSNayan Deshmukh * @entity: the entity to which this job belongs. 1853741540eSAndrey Grodzovsky * @cb: the callback for the parent fence in s_fence. 1861a61ee07SEric Anholt * 1871a61ee07SEric Anholt * A job is created by the driver using drm_sched_job_init(), and 1881a61ee07SEric Anholt * should call drm_sched_entity_push_job() once it wants the scheduler 1891a61ee07SEric Anholt * to schedule the job. 1901a61ee07SEric Anholt */ 1911b1f42d8SLucas Stach struct drm_sched_job { 1921b1f42d8SLucas Stach struct spsc_node queue_node; 1931b1f42d8SLucas Stach struct drm_gpu_scheduler *sched; 1941b1f42d8SLucas Stach struct drm_sched_fence *s_fence; 1951b1f42d8SLucas Stach struct dma_fence_cb finish_cb; 1961b1f42d8SLucas Stach struct list_head node; 1971b1f42d8SLucas Stach uint64_t id; 1981b1f42d8SLucas Stach atomic_t karma; 1991b1f42d8SLucas Stach enum drm_sched_priority s_priority; 2008ee3a52eSEmily Deng struct drm_sched_entity *entity; 2013741540eSAndrey Grodzovsky struct dma_fence_cb cb; 2021b1f42d8SLucas Stach }; 2031b1f42d8SLucas Stach 2041b1f42d8SLucas Stach static inline bool drm_sched_invalidate_job(struct drm_sched_job *s_job, 2051b1f42d8SLucas Stach int threshold) 2061b1f42d8SLucas Stach { 2071b1f42d8SLucas Stach return (s_job && atomic_inc_return(&s_job->karma) > threshold); 2081b1f42d8SLucas Stach } 2091b1f42d8SLucas Stach 2101b1f42d8SLucas Stach /** 2112d33948eSNayan Deshmukh * struct drm_sched_backend_ops 2122d33948eSNayan Deshmukh * 2131b1f42d8SLucas Stach * Define the backend operations called by the scheduler, 2142d33948eSNayan Deshmukh * these functions should be implemented in driver side. 2151b1f42d8SLucas Stach */ 2161b1f42d8SLucas Stach struct drm_sched_backend_ops { 2172d33948eSNayan Deshmukh /** 2182d33948eSNayan Deshmukh * @dependency: Called when the scheduler is considering scheduling 2192d33948eSNayan Deshmukh * this job next, to get another struct dma_fence for this job to 2201a61ee07SEric Anholt * block on. Once it returns NULL, run_job() may be called. 2211a61ee07SEric Anholt */ 2221b1f42d8SLucas Stach struct dma_fence *(*dependency)(struct drm_sched_job *sched_job, 2231b1f42d8SLucas Stach struct drm_sched_entity *s_entity); 2241a61ee07SEric Anholt 2252d33948eSNayan Deshmukh /** 2262d33948eSNayan Deshmukh * @run_job: Called to execute the job once all of the dependencies 2272d33948eSNayan Deshmukh * have been resolved. This may be called multiple times, if 2281a61ee07SEric Anholt * timedout_job() has happened and drm_sched_job_recovery() 2291a61ee07SEric Anholt * decides to try it again. 2301a61ee07SEric Anholt */ 2311b1f42d8SLucas Stach struct dma_fence *(*run_job)(struct drm_sched_job *sched_job); 2321a61ee07SEric Anholt 2332d33948eSNayan Deshmukh /** 2342d33948eSNayan Deshmukh * @timedout_job: Called when a job has taken too long to execute, 2352d33948eSNayan Deshmukh * to trigger GPU recovery. 2361a61ee07SEric Anholt */ 2371b1f42d8SLucas Stach void (*timedout_job)(struct drm_sched_job *sched_job); 2381a61ee07SEric Anholt 2392d33948eSNayan Deshmukh /** 2402d33948eSNayan Deshmukh * @free_job: Called once the job's finished fence has been signaled 2412d33948eSNayan Deshmukh * and it's time to clean it up. 2421a61ee07SEric Anholt */ 2431b1f42d8SLucas Stach void (*free_job)(struct drm_sched_job *sched_job); 2441b1f42d8SLucas Stach }; 2451b1f42d8SLucas Stach 2461b1f42d8SLucas Stach /** 2472d33948eSNayan Deshmukh * struct drm_gpu_scheduler 2482d33948eSNayan Deshmukh * 2492d33948eSNayan Deshmukh * @ops: backend operations provided by the driver. 2502d33948eSNayan Deshmukh * @hw_submission_limit: the max size of the hardware queue. 2512d33948eSNayan Deshmukh * @timeout: the time after which a job is removed from the scheduler. 2522d33948eSNayan Deshmukh * @name: name of the ring for which this scheduler is being used. 2532d33948eSNayan Deshmukh * @sched_rq: priority wise array of run queues. 2542d33948eSNayan Deshmukh * @wake_up_worker: the wait queue on which the scheduler sleeps until a job 2552d33948eSNayan Deshmukh * is ready to be scheduled. 2562d33948eSNayan Deshmukh * @job_scheduled: once @drm_sched_entity_do_release is called the scheduler 2572d33948eSNayan Deshmukh * waits on this wait queue until all the scheduled jobs are 2582d33948eSNayan Deshmukh * finished. 2592d33948eSNayan Deshmukh * @hw_rq_count: the number of jobs currently in the hardware queue. 2602d33948eSNayan Deshmukh * @job_id_count: used to assign unique id to the each job. 2616a962430SNayan Deshmukh * @work_tdr: schedules a delayed call to @drm_sched_job_timedout after the 2626a962430SNayan Deshmukh * timeout interval is over. 2632d33948eSNayan Deshmukh * @thread: the kthread on which the scheduler which run. 2642d33948eSNayan Deshmukh * @ring_mirror_list: the list of jobs which are currently in the job queue. 2652d33948eSNayan Deshmukh * @job_list_lock: lock to protect the ring_mirror_list. 2662d33948eSNayan Deshmukh * @hang_limit: once the hangs by a job crosses this limit then it is marked 2672d33948eSNayan Deshmukh * guilty and it will be considered for scheduling further. 268d164bebbSchangzhu * @num_jobs: the number of jobs in queue in the scheduler 269faf6e1a8SAndrey Grodzovsky * @ready: marks if the underlying HW is ready to work 270a5343b8aSAndrey Grodzovsky * @free_guilty: A hit to time out handler to free the guilty job. 2712d33948eSNayan Deshmukh * 2722d33948eSNayan Deshmukh * One scheduler is implemented for each hardware ring. 2731b1f42d8SLucas Stach */ 2741b1f42d8SLucas Stach struct drm_gpu_scheduler { 2751b1f42d8SLucas Stach const struct drm_sched_backend_ops *ops; 2761b1f42d8SLucas Stach uint32_t hw_submission_limit; 2771b1f42d8SLucas Stach long timeout; 2781b1f42d8SLucas Stach const char *name; 279e2d732fdSLuben Tuikov struct drm_sched_rq sched_rq[DRM_SCHED_PRIORITY_COUNT]; 2801b1f42d8SLucas Stach wait_queue_head_t wake_up_worker; 2811b1f42d8SLucas Stach wait_queue_head_t job_scheduled; 2821b1f42d8SLucas Stach atomic_t hw_rq_count; 2831b1f42d8SLucas Stach atomic64_t job_id_count; 2846a962430SNayan Deshmukh struct delayed_work work_tdr; 2851b1f42d8SLucas Stach struct task_struct *thread; 2861b1f42d8SLucas Stach struct list_head ring_mirror_list; 2871b1f42d8SLucas Stach spinlock_t job_list_lock; 2881b1f42d8SLucas Stach int hang_limit; 289d164bebbSchangzhu atomic_t num_jobs; 290faf6e1a8SAndrey Grodzovsky bool ready; 291a5343b8aSAndrey Grodzovsky bool free_guilty; 2921b1f42d8SLucas Stach }; 2931b1f42d8SLucas Stach 2941b1f42d8SLucas Stach int drm_sched_init(struct drm_gpu_scheduler *sched, 2951b1f42d8SLucas Stach const struct drm_sched_backend_ops *ops, 2961b1f42d8SLucas Stach uint32_t hw_submission, unsigned hang_limit, long timeout, 2971b1f42d8SLucas Stach const char *name); 298faf6e1a8SAndrey Grodzovsky 2991b1f42d8SLucas Stach void drm_sched_fini(struct drm_gpu_scheduler *sched); 300620e762fSChristian König int drm_sched_job_init(struct drm_sched_job *job, 301620e762fSChristian König struct drm_sched_entity *entity, 302620e762fSChristian König void *owner); 303b37aced3SNirmoy Das void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, 304b37aced3SNirmoy Das struct drm_gpu_scheduler **sched_list, 305b37aced3SNirmoy Das unsigned int num_sched_list); 306b37aced3SNirmoy Das 30726efecf9SSharat Masetty void drm_sched_job_cleanup(struct drm_sched_job *job); 308620e762fSChristian König void drm_sched_wakeup(struct drm_gpu_scheduler *sched); 3095918045cSChristian König void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad); 310222b5f04SAndrey Grodzovsky void drm_sched_start(struct drm_gpu_scheduler *sched, bool full_recovery); 311222b5f04SAndrey Grodzovsky void drm_sched_resubmit_jobs(struct drm_gpu_scheduler *sched); 312222b5f04SAndrey Grodzovsky void drm_sched_increase_karma(struct drm_sched_job *bad); 313620e762fSChristian König bool drm_sched_dependency_optimized(struct dma_fence* fence, 314620e762fSChristian König struct drm_sched_entity *entity); 3158fe159b0SChristian König void drm_sched_fault(struct drm_gpu_scheduler *sched); 316620e762fSChristian König void drm_sched_job_kickout(struct drm_sched_job *s_job); 317620e762fSChristian König 318620e762fSChristian König void drm_sched_rq_add_entity(struct drm_sched_rq *rq, 319620e762fSChristian König struct drm_sched_entity *entity); 320620e762fSChristian König void drm_sched_rq_remove_entity(struct drm_sched_rq *rq, 321620e762fSChristian König struct drm_sched_entity *entity); 3221b1f42d8SLucas Stach 323aa16b6c6SNayan Deshmukh int drm_sched_entity_init(struct drm_sched_entity *entity, 324b3ac1766SNirmoy Das enum drm_sched_priority priority, 325b3ac1766SNirmoy Das struct drm_gpu_scheduler **sched_list, 3269e3e90c5SNirmoy Das unsigned int num_sched_list, 3278344c53fSNayan Deshmukh atomic_t *guilty); 328cdc50176SNayan Deshmukh long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout); 329cdc50176SNayan Deshmukh void drm_sched_entity_fini(struct drm_sched_entity *entity); 330cdc50176SNayan Deshmukh void drm_sched_entity_destroy(struct drm_sched_entity *entity); 331620e762fSChristian König void drm_sched_entity_select_rq(struct drm_sched_entity *entity); 332620e762fSChristian König struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity); 3331b1f42d8SLucas Stach void drm_sched_entity_push_job(struct drm_sched_job *sched_job, 3341b1f42d8SLucas Stach struct drm_sched_entity *entity); 3357febe4bfSChristian König void drm_sched_entity_set_priority(struct drm_sched_entity *entity, 3367febe4bfSChristian König enum drm_sched_priority priority); 337620e762fSChristian König bool drm_sched_entity_is_ready(struct drm_sched_entity *entity); 338620e762fSChristian König 3391b1f42d8SLucas Stach struct drm_sched_fence *drm_sched_fence_create( 3401b1f42d8SLucas Stach struct drm_sched_entity *s_entity, void *owner); 3411b1f42d8SLucas Stach void drm_sched_fence_scheduled(struct drm_sched_fence *fence); 3421b1f42d8SLucas Stach void drm_sched_fence_finished(struct drm_sched_fence *fence); 3431b1f42d8SLucas Stach 3441db8c142SSharat Masetty unsigned long drm_sched_suspend_timeout(struct drm_gpu_scheduler *sched); 3451db8c142SSharat Masetty void drm_sched_resume_timeout(struct drm_gpu_scheduler *sched, 3461db8c142SSharat Masetty unsigned long remaining); 347ec2edcc2SNirmoy Das struct drm_gpu_scheduler * 348ec2edcc2SNirmoy Das drm_sched_pick_best(struct drm_gpu_scheduler **sched_list, 349ec2edcc2SNirmoy Das unsigned int num_sched_list); 3501db8c142SSharat Masetty 3511b1f42d8SLucas Stach #endif 352