linux/drivers/gpu/drm/amd/amdkfd/kfd_queue.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 <linux/slab.h>
#include "kfd_priv.h"
#include "kfd_topology.h"
#include "kfd_svm.h"

void print_queue_properties(struct queue_properties *q)
{ … }

void print_queue(struct queue *q)
{ … }

int init_queue(struct queue **q, const struct queue_properties *properties)
{ … }

void uninit_queue(struct queue *q)
{ … }

#if IS_ENABLED(CONFIG_HSA_AMD_SVM)

static int kfd_queue_buffer_svm_get(struct kfd_process_device *pdd, u64 addr, u64 size)
{ … }

static void kfd_queue_buffer_svm_put(struct kfd_process_device *pdd, u64 addr, u64 size)
{ … }
#else

static int kfd_queue_buffer_svm_get(struct kfd_process_device *pdd, u64 addr, u64 size)
{
	return -EINVAL;
}

static void kfd_queue_buffer_svm_put(struct kfd_process_device *pdd, u64 addr, u64 size)
{
}

#endif

int kfd_queue_buffer_get(struct amdgpu_vm *vm, void __user *addr, struct amdgpu_bo **pbo,
			 u64 expected_size)
{ … }

/* FIXME: remove this function, just call amdgpu_bo_unref directly */
void kfd_queue_buffer_put(struct amdgpu_bo **bo)
{ … }

int kfd_queue_acquire_buffers(struct kfd_process_device *pdd, struct queue_properties *properties)
{ … }

int kfd_queue_release_buffers(struct kfd_process_device *pdd, struct queue_properties *properties)
{ … }

void kfd_queue_unref_bo_va(struct amdgpu_vm *vm, struct amdgpu_bo **bo)
{ … }

int kfd_queue_unref_bo_vas(struct kfd_process_device *pdd,
			   struct queue_properties *properties)
{ … }

#define SGPR_SIZE_PER_CU …
#define LDS_SIZE_PER_CU …
#define HWREG_SIZE_PER_CU …
#define DEBUGGER_BYTES_ALIGN …
#define DEBUGGER_BYTES_PER_WAVE …

static u32 kfd_get_vgpr_size_per_cu(u32 gfxv)
{ … }

#define WG_CONTEXT_DATA_SIZE_PER_CU(gfxv) …

#define CNTL_STACK_BYTES_PER_WAVE(gfxv) …

#define SIZEOF_HSA_USER_CONTEXT_SAVE_AREA_HEADER …

void kfd_queue_ctx_save_restore_size(struct kfd_topology_device *dev)
{ … }