linux/drivers/gpu/drm/amd/powerplay/smumgr/ellesmere_smumgr.h

/*
 * 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.
 *
 */

#ifndef _ELLESMERE_SMUMANAGER_H
#define _ELLESMERE_SMUMANAGER_H

#include <ellesmere_ppsmc.h>
#include <pp_endian.h>

struct ellesmere_avfs {
	enum AVFS_BTC_STATUS avfs_btc_status;
	uint32_t           avfs_btc_param;
};

struct ellesmere_buffer_entry {
	uint32_t data_size;
	uint32_t mc_addr_low;
	uint32_t mc_addr_high;
	void *kaddr;
	unsigned long  handle;
};

struct ellesmere_smumgr {
	uint8_t *header;
	uint8_t *mec_image;
	struct ellesmere_buffer_entry smu_buffer;
	struct ellesmere_buffer_entry header_buffer;
	uint32_t soft_regs_start;
	uint8_t *read_rrm_straps;
	uint32_t read_drm_straps_mc_address_high;
	uint32_t read_drm_straps_mc_address_low;
	uint32_t acpi_optimization;
	bool post_initial_boot;
	uint8_t protected_mode;
	uint8_t security_hard_key;
	struct ellesmere_avfs  avfs;
};


int ellesmere_smum_init(struct pp_smumgr *smumgr);

int ellesmere_read_smc_sram_dword(struct pp_smumgr *smumgr, uint32_t smc_addr, uint32_t *value, uint32_t limit);
int ellesmere_write_smc_sram_dword(struct pp_smumgr *smumgr, uint32_t smc_addr, uint32_t value, uint32_t limit);
int ellesmere_copy_bytes_to_smc(struct pp_smumgr *smumgr, uint32_t smc_start_address,
				const uint8_t *src, uint32_t byte_count, uint32_t limit);

#endif