rtas.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:5k
- #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 */
- /*
- * 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 INTERNAL_ERROR 0x80000000 /* set bit 0 */
- #define EPOW_WARNING 0x40000000 /* set bit 1 */
- #define POWERMGM_EVENTS 0x20000000 /* set bit 2 */
- #define HOTPLUG_EVENTS 0x10000000 /* set bit 3 */
- #define 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 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 struct proc_dir_entry *rtas_proc_dir;
- #endif /* _PPC64_RTAS_H */