linux/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c

/*
 * 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.
 *
 *
 */
#include <linux/list.h>
#include <linux/pci.h>
#include <linux/slab.h>

#include <linux/firmware.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "atom.h"
#include "amdgpu_ucode.h"

struct amdgpu_cgs_device { … };

#define CGS_FUNC_ADEV …


static uint32_t amdgpu_cgs_read_register(struct cgs_device *cgs_device, unsigned int offset)
{ … }

static void amdgpu_cgs_write_register(struct cgs_device *cgs_device, unsigned int offset,
				      uint32_t value)
{ … }

static uint32_t amdgpu_cgs_read_ind_register(struct cgs_device *cgs_device,
					     enum cgs_ind_reg space,
					     unsigned int index)
{ … }

static void amdgpu_cgs_write_ind_register(struct cgs_device *cgs_device,
					  enum cgs_ind_reg space,
					  unsigned int index, uint32_t value)
{ … }

static uint32_t fw_type_convert(struct cgs_device *cgs_device, uint32_t fw_type)
{ … }

static uint16_t amdgpu_get_firmware_version(struct cgs_device *cgs_device,
					enum cgs_ucode_id type)
{ … }

static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device,
					enum cgs_ucode_id type,
					struct cgs_firmware_info *info)
{ … }

static const struct cgs_ops amdgpu_cgs_ops = …;

struct cgs_device *amdgpu_cgs_create_device(struct amdgpu_device *adev)
{ … }

void amdgpu_cgs_destroy_device(struct cgs_device *cgs_device)
{ … }