/* SPDX-License-Identifier: GPL-2.0 OR MIT */ /* * Copyright 2014-2022 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 KFD_DEVICE_QUEUE_MANAGER_H_ #define KFD_DEVICE_QUEUE_MANAGER_H_ #include <linux/rwsem.h> #include <linux/list.h> #include <linux/mutex.h> #include <linux/sched/mm.h> #include "kfd_priv.h" #include "kfd_mqd_manager.h" #define VMID_NUM … #define KFD_MES_PROCESS_QUANTUM … #define KFD_MES_GANG_QUANTUM … #define USE_DEFAULT_GRACE_PERIOD … struct device_process_node { … }; SQ_CMD_BITS; GRBM_GFX_INDEX_BITS; /** * struct device_queue_manager_ops * * @create_queue: Queue creation routine. * * @destroy_queue: Queue destruction routine. * * @update_queue: Queue update routine. * * @exeute_queues: Dispatches the queues list to the H/W. * * @register_process: This routine associates a specific process with device. * * @unregister_process: destroys the associations between process to device. * * @initialize: Initializes the pipelines and memory module for that device. * * @start: Initializes the resources/modules the device needs for queues * execution. This function is called on device initialization and after the * system woke up after suspension. * * @stop: This routine stops execution of all the active queue running on the * H/W and basically this function called on system suspend. * * @uninitialize: Destroys all the device queue manager resources allocated in * initialize routine. * * @create_kernel_queue: Creates kernel queue. Used for debug queue. * * @destroy_kernel_queue: Destroys kernel queue. Used for debug queue. * * @set_cache_memory_policy: Sets memory policy (cached/ non cached) for the * memory apertures. * * @process_termination: Clears all process queues belongs to that device. * * @evict_process_queues: Evict all active queues of a process * * @restore_process_queues: Restore all evicted queues of a process * * @get_wave_state: Retrieves context save state and optionally copies the * control stack, if kept in the MQD, to the given userspace address. * * @reset_queues: reset queues which consume RAS poison * @get_queue_checkpoint_info: Retrieves queue size information for CRIU checkpoint. * * @checkpoint_mqd: checkpoint queue MQD contents for CRIU. */ struct device_queue_manager_ops { … }; struct device_queue_manager_asic_ops { … }; /** * struct device_queue_manager * * This struct is a base class for the kfd queues scheduler in the * device level. The device base class should expose the basic operations * for queue creation and queue destruction. This base class hides the * scheduling mode of the driver and the specific implementation of the * concrete device. This class is the only class in the queues scheduler * that configures the H/W. * */ struct device_queue_manager { … }; void device_queue_manager_init_cik( struct device_queue_manager_asic_ops *asic_ops); void device_queue_manager_init_vi( struct device_queue_manager_asic_ops *asic_ops); void device_queue_manager_init_v9( struct device_queue_manager_asic_ops *asic_ops); void device_queue_manager_init_v10( struct device_queue_manager_asic_ops *asic_ops); void device_queue_manager_init_v11( struct device_queue_manager_asic_ops *asic_ops); void device_queue_manager_init_v12( struct device_queue_manager_asic_ops *asic_ops); void program_sh_mem_settings(struct device_queue_manager *dqm, struct qcm_process_device *qpd); unsigned int get_cp_queues_num(struct device_queue_manager *dqm); unsigned int get_queues_per_pipe(struct device_queue_manager *dqm); unsigned int get_pipes_per_mec(struct device_queue_manager *dqm); unsigned int get_num_sdma_queues(struct device_queue_manager *dqm); unsigned int get_num_xgmi_sdma_queues(struct device_queue_manager *dqm); int reserve_debug_trap_vmid(struct device_queue_manager *dqm, struct qcm_process_device *qpd); int release_debug_trap_vmid(struct device_queue_manager *dqm, struct qcm_process_device *qpd); int suspend_queues(struct kfd_process *p, uint32_t num_queues, uint32_t grace_period, uint64_t exception_clear_mask, uint32_t *usr_queue_id_array); int resume_queues(struct kfd_process *p, uint32_t num_queues, uint32_t *usr_queue_id_array); void set_queue_snapshot_entry(struct queue *q, uint64_t exception_clear_mask, struct kfd_queue_snapshot_entry *qss_entry); int debug_lock_and_unmap(struct device_queue_manager *dqm); int debug_map_and_unlock(struct device_queue_manager *dqm); int debug_refresh_runlist(struct device_queue_manager *dqm); static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd) { … } static inline unsigned int get_sh_mem_bases_nybble_64(struct kfd_process_device *pdd) { … } /* The DQM lock can be taken in MMU notifiers. Make sure no reclaim-FS * happens while holding this lock anywhere to prevent deadlocks when * an MMU notifier runs in reclaim-FS context. */ static inline void dqm_lock(struct device_queue_manager *dqm) { … } static inline void dqm_unlock(struct device_queue_manager *dqm) { … } static inline int read_sdma_queue_counter(uint64_t __user *q_rptr, uint64_t *val) { … } #endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */
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