forked from Minki/linux
e8fbaf0342
When GPU executes recovery and retriving bad GPU tag
from external eerpom device, the recovery will be broken
and error message is printed as well for user's awareness.
v2: Refine warning message in threshold reaching case, and
fix spelling typo.
v3: Fix explicit calling of bad gpu.
v4: Rename function names.
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef _AMDGPU_RAS_EEPROM_H
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#define _AMDGPU_RAS_EEPROM_H
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#include <linux/i2c.h>
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struct amdgpu_device;
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enum amdgpu_ras_eeprom_err_type{
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AMDGPU_RAS_EEPROM_ERR_PLACE_HOLDER,
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AMDGPU_RAS_EEPROM_ERR_RECOVERABLE,
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AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE
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};
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struct amdgpu_ras_eeprom_table_header {
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uint32_t header;
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uint32_t version;
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uint32_t first_rec_offset;
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uint32_t tbl_size;
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uint32_t checksum;
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}__attribute__((__packed__));
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struct amdgpu_ras_eeprom_control {
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struct amdgpu_ras_eeprom_table_header tbl_hdr;
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uint32_t next_addr;
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unsigned int num_recs;
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struct mutex tbl_mutex;
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uint32_t tbl_byte_sum;
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uint16_t i2c_address; // 8-bit represented address
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};
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/*
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* Represents single table record. Packed to be easily serialized into byte
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* stream.
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*/
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struct eeprom_table_record {
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union {
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uint64_t address;
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uint64_t offset;
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};
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uint64_t retired_page;
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uint64_t ts;
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enum amdgpu_ras_eeprom_err_type err_type;
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union {
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unsigned char bank;
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unsigned char cu;
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};
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unsigned char mem_channel;
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unsigned char mcumc_id;
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}__attribute__((__packed__));
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int amdgpu_ras_eeprom_init(struct amdgpu_ras_eeprom_control *control,
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bool *exceed_err_limit);
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int amdgpu_ras_eeprom_reset_table(struct amdgpu_ras_eeprom_control *control);
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int amdgpu_ras_eeprom_check_err_threshold(
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struct amdgpu_ras_eeprom_control *control,
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bool *exceed_err_limit);
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int amdgpu_ras_eeprom_process_recods(struct amdgpu_ras_eeprom_control *control,
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struct eeprom_table_record *records,
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bool write,
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int num);
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inline uint32_t amdgpu_ras_eeprom_get_record_max_length(void);
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void amdgpu_ras_eeprom_test(struct amdgpu_ras_eeprom_control *control);
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#endif // _AMDGPU_RAS_EEPROM_H
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