/* SPDX-License-Identifier: GPL-2.0-only */ /* * UEFI Common Platform Error Record (CPER) support for CXL Section. * * Copyright (C) 2022 Advanced Micro Devices, Inc. * * Author: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com> */ #ifndef LINUX_CPER_CXL_H #define LINUX_CPER_CXL_H /* CXL Protocol Error Section */ #define CPER_SEC_CXL_PROT_ERR \ GUID_INIT(0x80B9EFB4, 0x52B5, 0x4DE3, 0xA7, 0x77, 0x68, 0x78, \ 0x4B, 0x77, 0x10, 0x48) #pragma pack(1) /* Compute Express Link Protocol Error Section, UEFI v2.10 sec N.2.13 */ struct cper_sec_prot_err { u64 valid_bits; u8 agent_type; u8 reserved[7]; /* * Except for RCH Downstream Port, all the remaining CXL Agent * types are uniquely identified by the PCIe compatible SBDF number. */ union { u64 rcrb_base_addr; struct { u8 function; u8 device; u8 bus; u16 segment; u8 reserved_1[3]; }; } agent_addr; struct { u16 vendor_id; u16 device_id; u16 subsystem_vendor_id; u16 subsystem_id; u8 class_code[2]; u16 slot; u8 reserved_1[4]; } device_id; struct { u32 lower_dw; u32 upper_dw; } dev_serial_num; u8 capability[60]; u16 dvsec_len; u16 err_len; u8 reserved_2[4]; }; #pragma pack() void cper_print_prot_err(const char *pfx, const struct cper_sec_prot_err *prot_err); #endif //__CPER_CXL_