| #ifndef _PPC64_RTAS_H |
| #define _PPC64_RTAS_H |
| |
| #include <linux/spinlock.h> |
| #include <asm/page.h> |
| |
| /* |
| * 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 */ |