1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 #ifndef _ASM_POWERPC_RTAS_TYPES_H 3 #define _ASM_POWERPC_RTAS_TYPES_H 4 5 #include <linux/compiler_attributes.h> 6 7 typedef __be32 rtas_arg_t; 8 9 struct rtas_args { 10 __be32 token; 11 __be32 nargs; 12 __be32 nret; 13 rtas_arg_t args[16]; 14 rtas_arg_t *rets; /* Pointer to return values in args[]. */ 15 } __aligned(8); 16 17 struct rtas_t { 18 unsigned long entry; /* physical address pointer */ 19 unsigned long base; /* physical address pointer */ 20 unsigned long size; 21 struct device_node *dev; /* virtual address pointer */ 22 }; 23 24 struct rtas_error_log { 25 /* Byte 0 */ 26 u8 byte0; /* Architectural version */ 27 28 /* Byte 1 */ 29 u8 byte1; 30 /* XXXXXXXX 31 * XXX 3: Severity level of error 32 * XX 2: Degree of recovery 33 * X 1: Extended log present? 34 * XX 2: Reserved 35 */ 36 37 /* Byte 2 */ 38 u8 byte2; 39 /* XXXXXXXX 40 * XXXX 4: Initiator of event 41 * XXXX 4: Target of failed operation 42 */ 43 u8 byte3; /* General event or error*/ 44 __be32 extended_log_length; /* length in bytes */ 45 unsigned char buffer[1]; /* Start of extended log */ 46 /* Variable length. */ 47 }; 48 49 /* RTAS general extended event log, Version 6. The extended log starts 50 * from "buffer" field of struct rtas_error_log defined above. 51 */ 52 struct rtas_ext_event_log_v6 { 53 /* Byte 0 */ 54 u8 byte0; 55 /* XXXXXXXX 56 * X 1: Log valid 57 * X 1: Unrecoverable error 58 * X 1: Recoverable (correctable or successfully retried) 59 * X 1: Bypassed unrecoverable error (degraded operation) 60 * X 1: Predictive error 61 * X 1: "New" log (always 1 for data returned from RTAS) 62 * X 1: Big Endian 63 * X 1: Reserved 64 */ 65 66 /* Byte 1 */ 67 u8 byte1; /* reserved */ 68 69 /* Byte 2 */ 70 u8 byte2; 71 /* XXXXXXXX 72 * X 1: Set to 1 (indicating log is in PowerPC format) 73 * XXX 3: Reserved 74 * XXXX 4: Log format used for bytes 12-2047 75 */ 76 77 /* Byte 3 */ 78 u8 byte3; /* reserved */ 79 /* Byte 4-11 */ 80 u8 reserved[8]; /* reserved */ 81 /* Byte 12-15 */ 82 __be32 company_id; /* Company ID of the company */ 83 /* that defines the format for */ 84 /* the vendor specific log type */ 85 /* Byte 16-end of log */ 86 u8 vendor_log[1]; /* Start of vendor specific log */ 87 /* Variable length. */ 88 }; 89 90 /* Vendor specific Platform Event Log Format, Version 6, section header */ 91 struct pseries_errorlog { 92 __be16 id; /* 0x00 2-byte ASCII section ID */ 93 __be16 length; /* 0x02 Section length in bytes */ 94 u8 version; /* 0x04 Section version */ 95 u8 subtype; /* 0x05 Section subtype */ 96 __be16 creator_component; /* 0x06 Creator component ID */ 97 u8 data[]; /* 0x08 Start of section data */ 98 }; 99 100 /* RTAS pseries hotplug errorlog section */ 101 struct pseries_hp_errorlog { 102 u8 resource; 103 u8 action; 104 u8 id_type; 105 u8 reserved; 106 union { 107 __be32 drc_index; 108 __be32 drc_count; 109 struct { __be32 count, index; } ic; 110 char drc_name[1]; 111 } _drc_u; 112 }; 113 114 #endif /* _ASM_POWERPC_RTAS_TYPES_H */ 115