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/*
* Copyright 2019 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 _AMDGPU_RAS_EEPROM_H
#define _AMDGPU_RAS_EEPROM_H
#include <linux/i2c.h>
struct amdgpu_device;
enum amdgpu_ras_eeprom_err_type{
AMDGPU_RAS_EEPROM_ERR_PLACE_HOLDER,
AMDGPU_RAS_EEPROM_ERR_RECOVERABLE,
AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE
};
struct amdgpu_ras_eeprom_table_header {
uint32_t header;
uint32_t version;
uint32_t first_rec_offset;
uint32_t tbl_size;
uint32_t checksum;
}__attribute__((__packed__));
struct amdgpu_ras_eeprom_control {
struct amdgpu_ras_eeprom_table_header tbl_hdr;
uint32_t next_addr;
unsigned int num_recs;
struct mutex tbl_mutex;
uint32_t tbl_byte_sum;
uint16_t i2c_address; // 8-bit represented address
};
/*
* Represents single table record. Packed to be easily serialized into byte
* stream.
*/
struct eeprom_table_record {
union {
uint64_t address;
uint64_t offset;
};
uint64_t retired_page;
uint64_t ts;
enum amdgpu_ras_eeprom_err_type err_type;
union {
unsigned char bank;
unsigned char cu;
};
unsigned char mem_channel;
unsigned char mcumc_id;
}__attribute__((__packed__));
int amdgpu_ras_eeprom_init(struct amdgpu_ras_eeprom_control *control,
bool *exceed_err_limit);
int amdgpu_ras_eeprom_reset_table(struct amdgpu_ras_eeprom_control *control);
int amdgpu_ras_eeprom_check_err_threshold(
struct amdgpu_ras_eeprom_control *control,
bool *exceed_err_limit);
int amdgpu_ras_eeprom_process_recods(struct amdgpu_ras_eeprom_control *control,
struct eeprom_table_record *records,
bool write,
int num);
inline uint32_t amdgpu_ras_eeprom_get_record_max_length(void);
void amdgpu_ras_eeprom_test(struct amdgpu_ras_eeprom_control *control);
#endif // _AMDGPU_RAS_EEPROM_H
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