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

/*
 * Copyright 2020 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/debugfs.h>
#include <linux/firmware.h>
#include <linux/dma-mapping.h>

#include "amdgpu.h"
#include "amdgpu_fw_attestation.h"
#include "amdgpu_psp.h"
#include "amdgpu_ucode.h"
#include "soc15_common.h"

#define FW_ATTESTATION_DB_COOKIE …
#define FW_ATTESTATION_RECORD_VALID …
#define FW_ATTESTATION_MAX_SIZE …

struct FW_ATT_DB_HEADER { … };

struct FW_ATT_RECORD { … };

static ssize_t amdgpu_fw_attestation_debugfs_read(struct file *f,
						  char __user *buf,
						  size_t size,
						  loff_t *pos)
{ … }

static const struct file_operations amdgpu_fw_attestation_debugfs_ops = …;

static int amdgpu_is_fw_attestation_supported(struct amdgpu_device *adev)
{ … }

void amdgpu_fw_attestation_debugfs_init(struct amdgpu_device *adev)
{ … }