LXR linux/arch/powerpc/include/asm/rtas-types.h

   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
   7typedef __be32 rtas_arg_t;
   8
   9struct 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
  17struct 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
  26struct 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 */
  54struct 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 */
  93struct 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 */
 103struct 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