#ifndef _PPC64_RTAS_H #define _PPC64_RTAS_H #include #include /* * Definitions for talking to the RTAS on CHRP machines. * * Copyright (C) 2001 Peter Bergner * Copyright (C) 2001 PPC 64 Team, IBM Corp * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #define RTAS_UNKNOWN_SERVICE (-1) #define RTAS_INSTANTIATE_MAX (1UL<<30) /* Don't instantiate rtas at/above this value */ /* Error inject defines */ #define ERRINJCT_TOKEN_LEN 24 /* Max length of an error inject token */ #define MAX_ERRINJCT_TOKENS 8 /* Max # tokens. */ #define WORKSPACE_SIZE 1024 /* * In general to call RTAS use rtas_token("string") to lookup * an RTAS token for the given string (e.g. "event-scan"). * To actually perform the call use * ret = rtas_call(token, n_in, n_out, ...) * Where n_in is the number of input parameters and * n_out is the number of output parameters * * If the "string" is invalid on this system, RTAS_UNKOWN_SERVICE * will be returned as a token. rtas_call() does look for this * token and error out gracefully so rtas_call(rtas_token("str"), ...) * may be safely used for one-shot calls to RTAS. * */ typedef u32 rtas_arg_t; struct rtas_args { u32 token; u32 nargs; u32 nret; rtas_arg_t args[16]; #if 0 spinlock_t lock; #endif rtas_arg_t *rets; /* Pointer to return values in args[]. */ }; struct rtas_t { unsigned long entry; /* physical address pointer */ unsigned long base; /* physical address pointer */ unsigned long size; spinlock_t lock; struct device_node *dev; /* virtual address pointer */ }; /* Event classes */ #define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */ #define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */ #define RTAS_POWERMGM_EVENTS 0x20000000 /* set bit 2 */ #define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */ #define RTAS_EVENT_SCAN_ALL_EVENTS 0xf0000000 /* event-scan returns */ #define SEVERITY_FATAL 0x5 #define SEVERITY_ERROR 0x4 #define SEVERITY_ERROR_SYNC 0x3 #define SEVERITY_WARNING 0x2 #define SEVERITY_EVENT 0x1 #define SEVERITY_NO_ERROR 0x0 #define DISP_FULLY_RECOVERED 0x0 #define DISP_LIMITED_RECOVERY 0x1 #define DISP_NOT_RECOVERED 0x2 #define PART_PRESENT 0x0 #define PART_NOT_PRESENT 0x1 #define INITIATOR_UNKNOWN 0x0 #define INITIATOR_CPU 0x1 #define INITIATOR_PCI 0x2 #define INITIATOR_ISA 0x3 #define INITIATOR_MEMORY 0x4 #define INITIATOR_POWERMGM 0x5 #define TARGET_UNKNOWN 0x0 #define TARGET_CPU 0x1 #define TARGET_PCI 0x2 #define TARGET_ISA 0x3 #define TARGET_MEMORY 0x4 #define TARGET_POWERMGM 0x5 #define TYPE_RETRY 0x01 #define TYPE_TCE_ERR 0x02 #define TYPE_INTERN_DEV_FAIL 0x03 #define TYPE_TIMEOUT 0x04 #define TYPE_DATA_PARITY 0x05 #define TYPE_ADDR_PARITY 0x06 #define TYPE_CACHE_PARITY 0x07 #define TYPE_ADDR_INVALID 0x08 #define TYPE_ECC_UNCORR 0x09 #define TYPE_ECC_CORR 0x0a #define TYPE_EPOW 0x40 /* I don't add PowerMGM events right now, this is a different topic */ #define TYPE_PMGM_POWER_SW_ON 0x60 #define TYPE_PMGM_POWER_SW_OFF 0x61 #define TYPE_PMGM_LID_OPEN 0x62 #define TYPE_PMGM_LID_CLOSE 0x63 #define TYPE_PMGM_SLEEP_BTN 0x64 #define TYPE_PMGM_WAKE_BTN 0x65 #define TYPE_PMGM_BATTERY_WARN 0x66 #define TYPE_PMGM_BATTERY_CRIT 0x67 #define TYPE_PMGM_SWITCH_TO_BAT 0x68 #define TYPE_PMGM_SWITCH_TO_AC 0x69 #define TYPE_PMGM_KBD_OR_MOUSE 0x6a #define TYPE_PMGM_ENCLOS_OPEN 0x6b #define TYPE_PMGM_ENCLOS_CLOSED 0x6c #define TYPE_PMGM_RING_INDICATE 0x6d #define TYPE_PMGM_LAN_ATTENTION 0x6e #define TYPE_PMGM_TIME_ALARM 0x6f #define TYPE_PMGM_CONFIG_CHANGE 0x70 #define TYPE_PMGM_SERVICE_PROC 0x71 struct rtas_error_log { unsigned long version:8; /* Architectural version */ unsigned long severity:3; /* Severity level of error */ unsigned long disposition:2; /* Degree of recovery */ unsigned long extended:1; /* extended log present? */ unsigned long /* reserved */ :2; /* Reserved for future use */ unsigned long initiator:4; /* Initiator of event */ unsigned long target:4; /* Target of failed operation */ unsigned long type:8; /* General event or error*/ unsigned long extended_log_length:32; /* length in bytes */ unsigned char buffer[1]; /* allocated by klimit bump */ }; struct errinjct_token { char * name; int value; }; struct flash_block { char *data; unsigned long length; }; /* This struct is very similar but not identical to * that needed by the rtas flash update. * All we need to do for rtas is rewrite num_blocks * into a version/length and translate the pointers * to absolute. */ #define FLASH_BLOCKS_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct flash_block)) struct flash_block_list { unsigned long num_blocks; struct flash_block_list *next; struct flash_block blocks[FLASH_BLOCKS_PER_NODE]; }; struct flash_block_list_header { /* just the header of flash_block_list */ unsigned long num_blocks; struct flash_block_list *next; }; extern struct flash_block_list_header rtas_firmware_flash_list; extern struct rtas_t rtas; extern void enter_rtas(struct rtas_args *); extern int rtas_token(const char *service); extern long rtas_call(int token, int, int, unsigned long *, ...); extern void phys_call_rtas(int, int, int, ...); extern void phys_call_rtas_display_status(char); extern void call_rtas_display_status(char); extern void rtas_restart(char *cmd); extern void rtas_power_off(void); extern void rtas_halt(void); extern int rtas_errinjct_open(void); extern int rtas_errinjct(unsigned int, char *, char *); extern int rtas_errinjct_close(unsigned int); extern struct proc_dir_entry *rtas_proc_dir; extern struct errinjct_token ei_token_list[MAX_ERRINJCT_TOKENS]; extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal); /* Error types logged. */ #define ERR_FLAG_ALREADY_LOGGED 0x0 #define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */ #define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */ #define ERR_TYPE_KERNEL_PANIC 0x4 /* from panic() */ /* All the types and not flags */ #define ERR_TYPE_MASK (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC) #define RTAS_ERR KERN_ERR "RTAS: " #define RTAS_ERROR_LOG_MAX 1024 /* Event Scan Parameters */ #define EVENT_SCAN_ALL_EVENTS 0xf0000000 #define SURVEILLANCE_TOKEN 9000 #define LOG_NUMBER 64 /* must be a power of two */ #define LOG_NUMBER_MASK (LOG_NUMBER-1) /* Given an RTAS status code of 9900..9905 compute the hinted delay */ unsigned int rtas_extended_busy_delay_time(int status); static inline int rtas_is_extended_busy(int status) { return status >= 9900 && status <= 9909; } /* Some RTAS ops require a data buffer and that buffer must be < 4G. * Rather than having a memory allocator, just use this buffer * (get the lock first), make the RTAS call. Copy the data instead * of holding the buffer for long. */ #define RTAS_DATA_BUF_SIZE 4096 extern spinlock_t rtas_data_buf_lock; extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; #endif /* _PPC64_RTAS_H */