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/spinlock_types.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 }; 16 17 struct rtas_t { 18 unsigned long entry; /* physical address pointer */ 19 unsigned long base; /* physical address pointer */ 20 unsigned long size; 21 arch_spinlock_t lock; 22 struct rtas_args args; 23 struct device_node *dev; /* virtual address pointer */ 24 }; 25 26 struct rtas_error_log { 27 /* Byte 0 */ 28 u8 byte0; /* Architectural version */ 29 30 /* Byte 1 */ 31 u8 byte1; 32 /* XXXXXXXX 33 * XXX 3: Severity level of error 34 * XX 2: Degree of recovery 35 * X 1: Extended log present? 36 * XX 2: Reserved 37 */ 38 39 /* Byte 2 */ 40 u8 byte2; 41 /* XXXXXXXX 42 * XXXX 4: Initiator of event 43 * XXXX 4: Target of failed operation 44 */ 45 u8 byte3; /* General event or error*/ 46 __be32 extended_log_length; /* length in bytes */ 47 unsigned char buffer[1]; /* Start of extended log */ 48 /* Variable length. */ 49 }; 50 51 /* RTAS general extended event log, Version 6. The extended log starts 52 * from "buffer" field of struct rtas_error_log defined above. 53 */ 54 struct rtas_ext_event_log_v6 { 55 /* Byte 0 */ 56 u8 byte0; 57 /* XXXXXXXX 58 * X 1: Log valid 59 * X 1: Unrecoverable error 60 * X 1: Recoverable (correctable or successfully retried) 61 * X 1: Bypassed unrecoverable error (degraded operation) 62 * X 1: Predictive error 63 * X 1: "New" log (always 1 for data returned from RTAS) 64 * X 1: Big Endian 65 * X 1: Reserved 66 */ 67 68 /* Byte 1 */ 69 u8 byte1; /* reserved */ 70 71 /* Byte 2 */ 72 u8 byte2; 73 /* XXXXXXXX 74 * X 1: Set to 1 (indicating log is in PowerPC format) 75 * XXX 3: Reserved 76 * XXXX 4: Log format used for bytes 12-2047 77 */ 78 79 /* Byte 3 */ 80 u8 byte3; /* reserved */ 81 /* Byte 4-11 */ 82 u8 reserved[8]; /* reserved */ 83 /* Byte 12-15 */ 84 __be32 company_id; /* Company ID of the company */ 85 /* that defines the format for */ 86 /* the vendor specific log type */ 87 /* Byte 16-end of log */ 88 u8 vendor_log[1]; /* Start of vendor specific log */ 89 /* Variable length. */ 90 }; 91 92 /* Vendor specific Platform Event Log Format, Version 6, section header */ 93 struct pseries_errorlog { 94 __be16 id; /* 0x00 2-byte ASCII section ID */ 95 __be16 length; /* 0x02 Section length in bytes */ 96 u8 version; /* 0x04 Section version */ 97 u8 subtype; /* 0x05 Section subtype */ 98 __be16 creator_component; /* 0x06 Creator component ID */ 99 u8 data[]; /* 0x08 Start of section data */ 100 }; 101 102 /* RTAS pseries hotplug errorlog section */ 103 struct pseries_hp_errorlog { 104 u8 resource; 105 u8 action; 106 u8 id_type; 107 u8 reserved; 108 union { 109 __be32 drc_index; 110 __be32 drc_count; 111 struct { __be32 count, index; } ic; 112 char drc_name[1]; 113 } _drc_u; 114 }; 115 116 #endif /* _ASM_POWERPC_RTAS_TYPES_H */ 117