#ifndef _POWERPC_RTAS_H#define _POWERPC_RTAS_H#ifdef __KERNEL__ #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 */ /* Buffer size for ppc_rtas system call. */#define RTAS_RMOBUF_MAX (64 * 1024) /* RTAS return status codes */#define RTAS_BUSY		-2    /* RTAS Busy */#define RTAS_EXTENDED_DELAY_MIN	9900#define RTAS_EXTENDED_DELAY_MAX	9905 /* * 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_UNKNOWN_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];	rtas_arg_t *rets;     /* Pointer to return values in args[]. */};   extern struct rtas_args rtas_stop_self_args; struct rtas_t {	unsigned long entry;		/* physical address pointer */	unsigned long base;		/* physical address pointer */	unsigned long size;	spinlock_t lock;	struct rtas_args args;	struct device_node *dev;	/* virtual address pointer */}; /* RTAS 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 /* RTAS event severity */#define RTAS_SEVERITY_FATAL		0x5#define RTAS_SEVERITY_ERROR		0x4#define RTAS_SEVERITY_ERROR_SYNC	0x3#define RTAS_SEVERITY_WARNING		0x2#define RTAS_SEVERITY_EVENT		0x1#define RTAS_SEVERITY_NO_ERROR		0x0 /* RTAS event disposition */#define RTAS_DISP_FULLY_RECOVERED	0x0#define RTAS_DISP_LIMITED_RECOVERY	0x1#define RTAS_DISP_NOT_RECOVERED		0x2 /* RTAS event initiator */#define RTAS_INITIATOR_UNKNOWN		0x0#define RTAS_INITIATOR_CPU		0x1#define RTAS_INITIATOR_PCI		0x2#define RTAS_INITIATOR_ISA		0x3#define RTAS_INITIATOR_MEMORY		0x4#define RTAS_INITIATOR_POWERMGM		0x5 /* RTAS event target */#define RTAS_TARGET_UNKNOWN		0x0#define RTAS_TARGET_CPU			0x1#define RTAS_TARGET_PCI			0x2#define RTAS_TARGET_ISA			0x3#define RTAS_TARGET_MEMORY		0x4#define RTAS_TARGET_POWERMGM		0x5 /* RTAS event type */#define RTAS_TYPE_RETRY			0x01#define RTAS_TYPE_TCE_ERR		0x02#define RTAS_TYPE_INTERN_DEV_FAIL	0x03#define RTAS_TYPE_TIMEOUT		0x04#define RTAS_TYPE_DATA_PARITY		0x05#define RTAS_TYPE_ADDR_PARITY		0x06#define RTAS_TYPE_CACHE_PARITY		0x07#define RTAS_TYPE_ADDR_INVALID		0x08#define RTAS_TYPE_ECC_UNCORR		0x09#define RTAS_TYPE_ECC_CORR		0x0a#define RTAS_TYPE_EPOW			0x40#define RTAS_TYPE_PLATFORM		0xE0#define RTAS_TYPE_IO			0xE1#define RTAS_TYPE_INFO			0xE2#define RTAS_TYPE_DEALLOC		0xE3#define RTAS_TYPE_DUMP			0xE4/* I don't add PowerMGM events right now, this is a different topic */ #define RTAS_TYPE_PMGM_POWER_SW_ON	0x60#define RTAS_TYPE_PMGM_POWER_SW_OFF	0x61#define RTAS_TYPE_PMGM_LID_OPEN		0x62#define RTAS_TYPE_PMGM_LID_CLOSE	0x63#define RTAS_TYPE_PMGM_SLEEP_BTN	0x64#define RTAS_TYPE_PMGM_WAKE_BTN		0x65#define RTAS_TYPE_PMGM_BATTERY_WARN	0x66#define RTAS_TYPE_PMGM_BATTERY_CRIT	0x67#define RTAS_TYPE_PMGM_SWITCH_TO_BAT	0x68#define RTAS_TYPE_PMGM_SWITCH_TO_AC	0x69#define RTAS_TYPE_PMGM_KBD_OR_MOUSE	0x6a#define RTAS_TYPE_PMGM_ENCLOS_OPEN	0x6b#define RTAS_TYPE_PMGM_ENCLOS_CLOSED	0x6c#define RTAS_TYPE_PMGM_RING_INDICATE	0x6d#define RTAS_TYPE_PMGM_LAN_ATTENTION	0x6e#define RTAS_TYPE_PMGM_TIME_ALARM	0x6f#define RTAS_TYPE_PMGM_CONFIG_CHANGE	0x70#define RTAS_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];}; /* * This can be set by the rtas_flash module so that it can get called * as the absolutely last thing before the kernel terminates. */extern void (*rtas_flash_term_hook)(int); extern struct rtas_t rtas; extern void enter_rtas(unsigned long);extern int rtas_token(const char *service);extern int rtas_call(int token, int, int, int *, ...);extern void rtas_restart(char *cmd);extern void rtas_power_off(void);extern void rtas_halt(void);extern void rtas_os_term(char *str);extern int rtas_get_sensor(int sensor, int index, int *state);extern int rtas_get_power_level(int powerdomain, int *level);extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);extern int rtas_set_indicator(int indicator, int index, int new_value);extern void rtas_progress(char *s, unsigned short hex);extern void rtas_initialize(void); struct rtc_time;extern unsigned long rtas_get_boot_time(void);extern void rtas_get_rtc_time(struct rtc_time *rtc_time);extern int rtas_set_rtc_time(struct rtc_time *rtc_time); /* 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;} 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_DEBUG KERN_DEBUG "RTAS: " #define RTAS_ERROR_LOG_MAX 2048 /* * Return the firmware-specified size of the error log buffer *  for all rtas calls that require an error buffer argument. *  This includes 'check-exception' and 'rtas-last-error'. */extern int rtas_get_error_log_max(void); /* 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) /* 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 4096extern spinlock_t rtas_data_buf_lock;extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; extern void rtas_stop_self(void); /* RMO buffer reserved for user-space RTAS use */extern unsigned long rtas_rmo_buf; #define GLOBAL_INTERRUPT_QUEUE 9005 #endif /* __KERNEL__ */#endif /* _POWERPC_RTAS_H */