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1 | #ifndef _PPC64_RTAS_H |
2 | #define _PPC64_RTAS_H | |
3 | ||
4 | #include <linux/spinlock.h> | |
5 | #include <asm/page.h> | |
6 | ||
7 | /* | |
8 | * Definitions for talking to the RTAS on CHRP machines. | |
9 | * | |
10 | * Copyright (C) 2001 Peter Bergner | |
11 | * Copyright (C) 2001 PPC 64 Team, IBM Corp | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License | |
15 | * as published by the Free Software Foundation; either version | |
16 | * 2 of the License, or (at your option) any later version. | |
17 | */ | |
18 | ||
19 | #define RTAS_UNKNOWN_SERVICE (-1) | |
20 | #define RTAS_INSTANTIATE_MAX (1UL<<30) /* Don't instantiate rtas at/above this value */ | |
21 | ||
22 | /* Buffer size for ppc_rtas system call. */ | |
23 | #define RTAS_RMOBUF_MAX (64 * 1024) | |
24 | ||
25 | /* RTAS return status codes */ | |
26 | #define RTAS_BUSY -2 /* RTAS Busy */ | |
27 | #define RTAS_EXTENDED_DELAY_MIN 9900 | |
28 | #define RTAS_EXTENDED_DELAY_MAX 9905 | |
29 | ||
30 | /* | |
31 | * In general to call RTAS use rtas_token("string") to lookup | |
32 | * an RTAS token for the given string (e.g. "event-scan"). | |
33 | * To actually perform the call use | |
34 | * ret = rtas_call(token, n_in, n_out, ...) | |
35 | * Where n_in is the number of input parameters and | |
36 | * n_out is the number of output parameters | |
37 | * | |
38 | * If the "string" is invalid on this system, RTAS_UNKNOWN_SERVICE | |
39 | * will be returned as a token. rtas_call() does look for this | |
40 | * token and error out gracefully so rtas_call(rtas_token("str"), ...) | |
41 | * may be safely used for one-shot calls to RTAS. | |
42 | * | |
43 | */ | |
44 | ||
45 | typedef u32 rtas_arg_t; | |
46 | ||
47 | struct rtas_args { | |
48 | u32 token; | |
49 | u32 nargs; | |
50 | u32 nret; | |
51 | rtas_arg_t args[16]; | |
52 | rtas_arg_t *rets; /* Pointer to return values in args[]. */ | |
53 | }; | |
54 | ||
55 | extern struct rtas_args rtas_stop_self_args; | |
56 | ||
57 | struct rtas_t { | |
58 | unsigned long entry; /* physical address pointer */ | |
59 | unsigned long base; /* physical address pointer */ | |
60 | unsigned long size; | |
61 | spinlock_t lock; | |
62 | struct rtas_args args; | |
63 | struct device_node *dev; /* virtual address pointer */ | |
64 | }; | |
65 | ||
66 | /* RTAS event classes */ | |
67 | #define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */ | |
68 | #define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */ | |
69 | #define RTAS_POWERMGM_EVENTS 0x20000000 /* set bit 2 */ | |
70 | #define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */ | |
71 | #define RTAS_EVENT_SCAN_ALL_EVENTS 0xf0000000 | |
72 | ||
73 | /* RTAS event severity */ | |
74 | #define RTAS_SEVERITY_FATAL 0x5 | |
75 | #define RTAS_SEVERITY_ERROR 0x4 | |
76 | #define RTAS_SEVERITY_ERROR_SYNC 0x3 | |
77 | #define RTAS_SEVERITY_WARNING 0x2 | |
78 | #define RTAS_SEVERITY_EVENT 0x1 | |
79 | #define RTAS_SEVERITY_NO_ERROR 0x0 | |
80 | ||
81 | /* RTAS event disposition */ | |
82 | #define RTAS_DISP_FULLY_RECOVERED 0x0 | |
83 | #define RTAS_DISP_LIMITED_RECOVERY 0x1 | |
84 | #define RTAS_DISP_NOT_RECOVERED 0x2 | |
85 | ||
86 | /* RTAS event initiator */ | |
87 | #define RTAS_INITIATOR_UNKNOWN 0x0 | |
88 | #define RTAS_INITIATOR_CPU 0x1 | |
89 | #define RTAS_INITIATOR_PCI 0x2 | |
90 | #define RTAS_INITIATOR_ISA 0x3 | |
91 | #define RTAS_INITIATOR_MEMORY 0x4 | |
92 | #define RTAS_INITIATOR_POWERMGM 0x5 | |
93 | ||
94 | /* RTAS event target */ | |
95 | #define RTAS_TARGET_UNKNOWN 0x0 | |
96 | #define RTAS_TARGET_CPU 0x1 | |
97 | #define RTAS_TARGET_PCI 0x2 | |
98 | #define RTAS_TARGET_ISA 0x3 | |
99 | #define RTAS_TARGET_MEMORY 0x4 | |
100 | #define RTAS_TARGET_POWERMGM 0x5 | |
101 | ||
102 | /* RTAS event type */ | |
103 | #define RTAS_TYPE_RETRY 0x01 | |
104 | #define RTAS_TYPE_TCE_ERR 0x02 | |
105 | #define RTAS_TYPE_INTERN_DEV_FAIL 0x03 | |
106 | #define RTAS_TYPE_TIMEOUT 0x04 | |
107 | #define RTAS_TYPE_DATA_PARITY 0x05 | |
108 | #define RTAS_TYPE_ADDR_PARITY 0x06 | |
109 | #define RTAS_TYPE_CACHE_PARITY 0x07 | |
110 | #define RTAS_TYPE_ADDR_INVALID 0x08 | |
111 | #define RTAS_TYPE_ECC_UNCORR 0x09 | |
112 | #define RTAS_TYPE_ECC_CORR 0x0a | |
113 | #define RTAS_TYPE_EPOW 0x40 | |
114 | #define RTAS_TYPE_PLATFORM 0xE0 | |
115 | #define RTAS_TYPE_IO 0xE1 | |
116 | #define RTAS_TYPE_INFO 0xE2 | |
117 | #define RTAS_TYPE_DEALLOC 0xE3 | |
118 | #define RTAS_TYPE_DUMP 0xE4 | |
119 | /* I don't add PowerMGM events right now, this is a different topic */ | |
120 | #define RTAS_TYPE_PMGM_POWER_SW_ON 0x60 | |
121 | #define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61 | |
122 | #define RTAS_TYPE_PMGM_LID_OPEN 0x62 | |
123 | #define RTAS_TYPE_PMGM_LID_CLOSE 0x63 | |
124 | #define RTAS_TYPE_PMGM_SLEEP_BTN 0x64 | |
125 | #define RTAS_TYPE_PMGM_WAKE_BTN 0x65 | |
126 | #define RTAS_TYPE_PMGM_BATTERY_WARN 0x66 | |
127 | #define RTAS_TYPE_PMGM_BATTERY_CRIT 0x67 | |
128 | #define RTAS_TYPE_PMGM_SWITCH_TO_BAT 0x68 | |
129 | #define RTAS_TYPE_PMGM_SWITCH_TO_AC 0x69 | |
130 | #define RTAS_TYPE_PMGM_KBD_OR_MOUSE 0x6a | |
131 | #define RTAS_TYPE_PMGM_ENCLOS_OPEN 0x6b | |
132 | #define RTAS_TYPE_PMGM_ENCLOS_CLOSED 0x6c | |
133 | #define RTAS_TYPE_PMGM_RING_INDICATE 0x6d | |
134 | #define RTAS_TYPE_PMGM_LAN_ATTENTION 0x6e | |
135 | #define RTAS_TYPE_PMGM_TIME_ALARM 0x6f | |
136 | #define RTAS_TYPE_PMGM_CONFIG_CHANGE 0x70 | |
137 | #define RTAS_TYPE_PMGM_SERVICE_PROC 0x71 | |
138 | ||
139 | struct rtas_error_log { | |
140 | unsigned long version:8; /* Architectural version */ | |
141 | unsigned long severity:3; /* Severity level of error */ | |
142 | unsigned long disposition:2; /* Degree of recovery */ | |
143 | unsigned long extended:1; /* extended log present? */ | |
144 | unsigned long /* reserved */ :2; /* Reserved for future use */ | |
145 | unsigned long initiator:4; /* Initiator of event */ | |
146 | unsigned long target:4; /* Target of failed operation */ | |
147 | unsigned long type:8; /* General event or error*/ | |
148 | unsigned long extended_log_length:32; /* length in bytes */ | |
149 | unsigned char buffer[1]; | |
150 | }; | |
151 | ||
152 | struct flash_block { | |
153 | char *data; | |
154 | unsigned long length; | |
155 | }; | |
156 | ||
157 | /* This struct is very similar but not identical to | |
158 | * that needed by the rtas flash update. | |
159 | * All we need to do for rtas is rewrite num_blocks | |
160 | * into a version/length and translate the pointers | |
161 | * to absolute. | |
162 | */ | |
163 | #define FLASH_BLOCKS_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct flash_block)) | |
164 | struct flash_block_list { | |
165 | unsigned long num_blocks; | |
166 | struct flash_block_list *next; | |
167 | struct flash_block blocks[FLASH_BLOCKS_PER_NODE]; | |
168 | }; | |
169 | struct flash_block_list_header { /* just the header of flash_block_list */ | |
170 | unsigned long num_blocks; | |
171 | struct flash_block_list *next; | |
172 | }; | |
173 | extern struct flash_block_list_header rtas_firmware_flash_list; | |
174 | ||
175 | extern struct rtas_t rtas; | |
176 | ||
177 | extern void enter_rtas(unsigned long); | |
178 | extern int rtas_token(const char *service); | |
179 | extern int rtas_call(int token, int, int, int *, ...); | |
180 | extern void call_rtas_display_status(unsigned char); | |
181 | extern void rtas_restart(char *cmd); | |
182 | extern void rtas_power_off(void); | |
183 | extern void rtas_halt(void); | |
184 | extern void rtas_os_term(char *str); | |
185 | extern int rtas_get_sensor(int sensor, int index, int *state); | |
186 | extern int rtas_get_power_level(int powerdomain, int *level); | |
187 | extern int rtas_set_power_level(int powerdomain, int level, int *setlevel); | |
188 | extern int rtas_set_indicator(int indicator, int index, int new_value); | |
6566c6f1 | 189 | extern void rtas_progress(char *s, unsigned short hex); |
1da177e4 LT |
190 | extern void rtas_initialize(void); |
191 | ||
773bf9c4 AB |
192 | struct rtc_time; |
193 | extern void rtas_get_boot_time(struct rtc_time *rtc_time); | |
194 | extern void rtas_get_rtc_time(struct rtc_time *rtc_time); | |
195 | extern int rtas_set_rtc_time(struct rtc_time *rtc_time); | |
196 | ||
1da177e4 LT |
197 | /* Given an RTAS status code of 9900..9905 compute the hinted delay */ |
198 | unsigned int rtas_extended_busy_delay_time(int status); | |
199 | static inline int rtas_is_extended_busy(int status) | |
200 | { | |
201 | return status >= 9900 && status <= 9909; | |
202 | } | |
203 | ||
204 | extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal); | |
205 | ||
206 | /* Error types logged. */ | |
207 | #define ERR_FLAG_ALREADY_LOGGED 0x0 | |
208 | #define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */ | |
209 | #define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */ | |
210 | #define ERR_TYPE_KERNEL_PANIC 0x4 /* from panic() */ | |
211 | ||
212 | /* All the types and not flags */ | |
213 | #define ERR_TYPE_MASK (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC) | |
214 | ||
215 | #define RTAS_DEBUG KERN_DEBUG "RTAS: " | |
216 | ||
217 | #define RTAS_ERROR_LOG_MAX 2048 | |
218 | ||
219 | /* | |
220 | * Return the firmware-specified size of the error log buffer | |
221 | * for all rtas calls that require an error buffer argument. | |
222 | * This includes 'check-exception' and 'rtas-last-error'. | |
223 | */ | |
224 | extern int rtas_get_error_log_max(void); | |
225 | ||
226 | /* Event Scan Parameters */ | |
227 | #define EVENT_SCAN_ALL_EVENTS 0xf0000000 | |
228 | #define SURVEILLANCE_TOKEN 9000 | |
229 | #define LOG_NUMBER 64 /* must be a power of two */ | |
230 | #define LOG_NUMBER_MASK (LOG_NUMBER-1) | |
231 | ||
232 | /* Some RTAS ops require a data buffer and that buffer must be < 4G. | |
233 | * Rather than having a memory allocator, just use this buffer | |
234 | * (get the lock first), make the RTAS call. Copy the data instead | |
235 | * of holding the buffer for long. | |
236 | */ | |
237 | ||
238 | #define RTAS_DATA_BUF_SIZE 4096 | |
239 | extern spinlock_t rtas_data_buf_lock; | |
240 | extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; | |
241 | ||
242 | extern void rtas_stop_self(void); | |
243 | ||
244 | /* RMO buffer reserved for user-space RTAS use */ | |
245 | extern unsigned long rtas_rmo_buf; | |
246 | ||
247 | #define GLOBAL_INTERRUPT_QUEUE 9005 | |
248 | ||
249 | #endif /* _PPC64_RTAS_H */ |