linux/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c

// 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.
 *
 */

#include "kfd_mqd_manager.h"
#include "amdgpu_amdkfd.h"
#include "kfd_device_queue_manager.h"

/* Mapping queue priority to pipe priority, indexed by queue priority */
int pipe_priority_map[] = …;

struct kfd_mem_obj *allocate_hiq_mqd(struct kfd_node *dev, struct queue_properties *q)
{ … }

struct kfd_mem_obj *allocate_sdma_mqd(struct kfd_node *dev,
					struct queue_properties *q)
{ … }

void free_mqd_hiq_sdma(struct mqd_manager *mm, void *mqd,
			struct kfd_mem_obj *mqd_mem_obj)
{ … }

void mqd_symmetrically_map_cu_mask(struct mqd_manager *mm,
		const uint32_t *cu_mask, uint32_t cu_mask_count,
		uint32_t *se_mask, uint32_t inst)
{ … }

int kfd_hiq_load_mqd_kiq(struct mqd_manager *mm, void *mqd,
		     uint32_t pipe_id, uint32_t queue_id,
		     struct queue_properties *p, struct mm_struct *mms)
{ … }

int kfd_destroy_mqd_cp(struct mqd_manager *mm, void *mqd,
		enum kfd_preempt_type type, unsigned int timeout,
		uint32_t pipe_id, uint32_t queue_id)
{ … }

void kfd_free_mqd_cp(struct mqd_manager *mm, void *mqd,
	      struct kfd_mem_obj *mqd_mem_obj)
{ … }

bool kfd_is_occupied_cp(struct mqd_manager *mm, void *mqd,
		 uint64_t queue_address, uint32_t pipe_id,
		 uint32_t queue_id)
{ … }

int kfd_load_mqd_sdma(struct mqd_manager *mm, void *mqd,
		  uint32_t pipe_id, uint32_t queue_id,
		  struct queue_properties *p, struct mm_struct *mms)
{ … }

/*
 * preempt type here is ignored because there is only one way
 * to preempt sdma queue
 */
int kfd_destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
		     enum kfd_preempt_type type,
		     unsigned int timeout, uint32_t pipe_id,
		     uint32_t queue_id)
{ … }

bool kfd_is_occupied_sdma(struct mqd_manager *mm, void *mqd,
		      uint64_t queue_address, uint32_t pipe_id,
		      uint32_t queue_id)
{ … }

uint64_t kfd_hiq_mqd_stride(struct kfd_node *dev)
{ … }

void kfd_get_hiq_xcc_mqd(struct kfd_node *dev, struct kfd_mem_obj *mqd_mem_obj,
		     uint32_t virtual_xcc_id)
{ … }

uint64_t kfd_mqd_stride(struct mqd_manager *mm,
			struct queue_properties *q)
{ … }

bool kfd_check_hiq_mqd_doorbell_id(struct kfd_node *node, uint32_t doorbell_id,
				   uint32_t inst)
{ … }