1
2#ifndef _POWERPC_RTAS_H
3#define _POWERPC_RTAS_H
4#ifdef __KERNEL__
5
6#include <linux/spinlock.h>
7#include <asm/page.h>
8#include <asm/rtas-types.h>
9#include <linux/time.h>
10#include <linux/cpumask.h>
11
12
13
14
15
16
17
18
19#define RTAS_UNKNOWN_SERVICE (-1)
20#define RTAS_INSTANTIATE_MAX (1ULL<<30)
21
22
23#define RTAS_USER_REGION_SIZE (64 * 1024)
24
25
26#define RTAS_BUSY -2
27#define RTAS_EXTENDED_DELAY_MIN 9900
28#define RTAS_EXTENDED_DELAY_MAX 9905
29
30
31#define RTAS_SUSPEND_ABORTED 9000
32#define RTAS_NOT_SUSPENDABLE -9004
33#define RTAS_THREADS_ACTIVE -9005
34#define RTAS_OUTSTANDING_COPROC -9006
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52#define RTAS_INTERNAL_ERROR 0x80000000
53#define RTAS_EPOW_WARNING 0x40000000
54#define RTAS_HOTPLUG_EVENTS 0x10000000
55#define RTAS_IO_EVENTS 0x08000000
56#define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff
57
58
59#define RTAS_SEVERITY_FATAL 0x5
60#define RTAS_SEVERITY_ERROR 0x4
61#define RTAS_SEVERITY_ERROR_SYNC 0x3
62#define RTAS_SEVERITY_WARNING 0x2
63#define RTAS_SEVERITY_EVENT 0x1
64#define RTAS_SEVERITY_NO_ERROR 0x0
65
66
67#define RTAS_DISP_FULLY_RECOVERED 0x0
68#define RTAS_DISP_LIMITED_RECOVERY 0x1
69#define RTAS_DISP_NOT_RECOVERED 0x2
70
71
72#define RTAS_INITIATOR_UNKNOWN 0x0
73#define RTAS_INITIATOR_CPU 0x1
74#define RTAS_INITIATOR_PCI 0x2
75#define RTAS_INITIATOR_ISA 0x3
76#define RTAS_INITIATOR_MEMORY 0x4
77#define RTAS_INITIATOR_POWERMGM 0x5
78
79
80#define RTAS_TARGET_UNKNOWN 0x0
81#define RTAS_TARGET_CPU 0x1
82#define RTAS_TARGET_PCI 0x2
83#define RTAS_TARGET_ISA 0x3
84#define RTAS_TARGET_MEMORY 0x4
85#define RTAS_TARGET_POWERMGM 0x5
86
87
88#define RTAS_TYPE_RETRY 0x01
89#define RTAS_TYPE_TCE_ERR 0x02
90#define RTAS_TYPE_INTERN_DEV_FAIL 0x03
91#define RTAS_TYPE_TIMEOUT 0x04
92#define RTAS_TYPE_DATA_PARITY 0x05
93#define RTAS_TYPE_ADDR_PARITY 0x06
94#define RTAS_TYPE_CACHE_PARITY 0x07
95#define RTAS_TYPE_ADDR_INVALID 0x08
96#define RTAS_TYPE_ECC_UNCORR 0x09
97#define RTAS_TYPE_ECC_CORR 0x0a
98#define RTAS_TYPE_EPOW 0x40
99#define RTAS_TYPE_PLATFORM 0xE0
100#define RTAS_TYPE_IO 0xE1
101#define RTAS_TYPE_INFO 0xE2
102#define RTAS_TYPE_DEALLOC 0xE3
103#define RTAS_TYPE_DUMP 0xE4
104#define RTAS_TYPE_HOTPLUG 0xE5
105
106#define RTAS_TYPE_PMGM_POWER_SW_ON 0x60
107#define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61
108#define RTAS_TYPE_PMGM_LID_OPEN 0x62
109#define RTAS_TYPE_PMGM_LID_CLOSE 0x63
110#define RTAS_TYPE_PMGM_SLEEP_BTN 0x64
111#define RTAS_TYPE_PMGM_WAKE_BTN 0x65
112#define RTAS_TYPE_PMGM_BATTERY_WARN 0x66
113#define RTAS_TYPE_PMGM_BATTERY_CRIT 0x67
114#define RTAS_TYPE_PMGM_SWITCH_TO_BAT 0x68
115#define RTAS_TYPE_PMGM_SWITCH_TO_AC 0x69
116#define RTAS_TYPE_PMGM_KBD_OR_MOUSE 0x6a
117#define RTAS_TYPE_PMGM_ENCLOS_OPEN 0x6b
118#define RTAS_TYPE_PMGM_ENCLOS_CLOSED 0x6c
119#define RTAS_TYPE_PMGM_RING_INDICATE 0x6d
120#define RTAS_TYPE_PMGM_LAN_ATTENTION 0x6e
121#define RTAS_TYPE_PMGM_TIME_ALARM 0x6f
122#define RTAS_TYPE_PMGM_CONFIG_CHANGE 0x70
123#define RTAS_TYPE_PMGM_SERVICE_PROC 0x71
124
125#define RTAS_TYPE_PRRN 0xA0
126
127
128#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500
129
130static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
131{
132 return (elog->byte1 & 0xE0) >> 5;
133}
134
135static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
136{
137 return (elog->byte1 & 0x18) >> 3;
138}
139
140static inline
141void rtas_set_disposition_recovered(struct rtas_error_log *elog)
142{
143 elog->byte1 &= ~0x18;
144 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3);
145}
146
147static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
148{
149 return (elog->byte1 & 0x04) >> 2;
150}
151
152static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog)
153{
154 return (elog->byte2 & 0xf0) >> 4;
155}
156
157#define rtas_error_type(x) ((x)->byte3)
158
159static inline
160uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
161{
162 return be32_to_cpu(elog->extended_log_length);
163}
164
165#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14
166
167#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8))
168
169static
170inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
171{
172 return ext_log->byte2 & 0x0F;
173}
174
175static
176inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
177{
178 return be32_to_cpu(ext_log->company_id);
179}
180
181
182
183
184#define PSERIES_ELOG_SECT_ID_PRIV_HDR (('P' << 8) | 'H')
185#define PSERIES_ELOG_SECT_ID_USER_HDR (('U' << 8) | 'H')
186#define PSERIES_ELOG_SECT_ID_PRIMARY_SRC (('P' << 8) | 'S')
187#define PSERIES_ELOG_SECT_ID_EXTENDED_UH (('E' << 8) | 'H')
188#define PSERIES_ELOG_SECT_ID_FAILING_MTMS (('M' << 8) | 'T')
189#define PSERIES_ELOG_SECT_ID_SECONDARY_SRC (('S' << 8) | 'S')
190#define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR (('D' << 8) | 'H')
191#define PSERIES_ELOG_SECT_ID_FW_ERROR (('S' << 8) | 'W')
192#define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID (('L' << 8) | 'P')
193#define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID (('L' << 8) | 'R')
194#define PSERIES_ELOG_SECT_ID_HMC_ID (('H' << 8) | 'M')
195#define PSERIES_ELOG_SECT_ID_EPOW (('E' << 8) | 'P')
196#define PSERIES_ELOG_SECT_ID_IO_EVENT (('I' << 8) | 'E')
197#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I')
198#define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H')
199#define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D')
200#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P')
201#define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C')
202
203static
204inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
205{
206 return be16_to_cpu(sect->id);
207}
208
209static
210inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
211{
212 return be16_to_cpu(sect->length);
213}
214
215#define PSERIES_HP_ELOG_RESOURCE_CPU 1
216#define PSERIES_HP_ELOG_RESOURCE_MEM 2
217#define PSERIES_HP_ELOG_RESOURCE_SLOT 3
218#define PSERIES_HP_ELOG_RESOURCE_PHB 4
219#define PSERIES_HP_ELOG_RESOURCE_PMEM 6
220
221#define PSERIES_HP_ELOG_ACTION_ADD 1
222#define PSERIES_HP_ELOG_ACTION_REMOVE 2
223
224#define PSERIES_HP_ELOG_ID_DRC_NAME 1
225#define PSERIES_HP_ELOG_ID_DRC_INDEX 2
226#define PSERIES_HP_ELOG_ID_DRC_COUNT 3
227#define PSERIES_HP_ELOG_ID_DRC_IC 4
228
229struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
230 uint16_t section_id);
231
232
233
234
235
236extern void (*rtas_flash_term_hook)(int);
237
238extern struct rtas_t rtas;
239
240extern int rtas_token(const char *service);
241extern int rtas_service_present(const char *service);
242extern int rtas_call(int token, int, int, int *, ...);
243int rtas_call_reentrant(int token, int nargs, int nret, int *outputs, ...);
244void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
245 int nret, ...);
246extern void __noreturn rtas_restart(char *cmd);
247extern void rtas_power_off(void);
248extern void __noreturn rtas_halt(void);
249extern void rtas_os_term(char *str);
250void rtas_activate_firmware(void);
251extern int rtas_get_sensor(int sensor, int index, int *state);
252extern int rtas_get_sensor_fast(int sensor, int index, int *state);
253extern int rtas_get_power_level(int powerdomain, int *level);
254extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
255extern bool rtas_indicator_present(int token, int *maxindex);
256extern int rtas_set_indicator(int indicator, int index, int new_value);
257extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
258extern void rtas_progress(char *s, unsigned short hex);
259int rtas_ibm_suspend_me(int *fw_status);
260
261struct rtc_time;
262extern time64_t rtas_get_boot_time(void);
263extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
264extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
265
266extern unsigned int rtas_busy_delay_time(int status);
267extern unsigned int rtas_busy_delay(int status);
268
269extern int early_init_dt_scan_rtas(unsigned long node,
270 const char *uname, int depth, void *data);
271
272extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
273
274#ifdef CONFIG_PPC_PSERIES
275extern time64_t last_rtas_event;
276extern int clobbering_unread_rtas_event(void);
277extern int pseries_devicetree_update(s32 scope);
278extern void post_mobility_fixup(void);
279int rtas_syscall_dispatch_ibm_suspend_me(u64 handle);
280#else
281static inline int clobbering_unread_rtas_event(void) { return 0; }
282static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle)
283{
284 return -EINVAL;
285}
286#endif
287
288#ifdef CONFIG_PPC_RTAS_DAEMON
289extern void rtas_cancel_event_scan(void);
290#else
291static inline void rtas_cancel_event_scan(void) { }
292#endif
293
294
295#define ERR_FLAG_ALREADY_LOGGED 0x0
296#define ERR_FLAG_BOOT 0x1
297#define ERR_TYPE_RTAS_LOG 0x2
298#define ERR_TYPE_KERNEL_PANIC 0x4
299#define ERR_TYPE_KERNEL_PANIC_GZ 0x8
300
301
302#define ERR_TYPE_MASK \
303 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)
304
305#define RTAS_DEBUG KERN_DEBUG "RTAS: "
306
307#define RTAS_ERROR_LOG_MAX 2048
308
309
310
311
312
313
314extern int rtas_get_error_log_max(void);
315
316
317#define EVENT_SCAN_ALL_EVENTS 0xf0000000
318#define SURVEILLANCE_TOKEN 9000
319#define LOG_NUMBER 64
320#define LOG_NUMBER_MASK (LOG_NUMBER-1)
321
322
323
324
325
326
327
328#define RTAS_DATA_BUF_SIZE 4096
329extern spinlock_t rtas_data_buf_lock;
330extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];
331
332
333extern unsigned long rtas_rmo_buf;
334
335#define GLOBAL_INTERRUPT_QUEUE 9005
336
337
338
339
340
341
342
343
344
345
346
347static inline u32 rtas_config_addr(int busno, int devfn, int reg)
348{
349 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
350 (devfn << 8) | (reg & 0xff);
351}
352
353extern void rtas_give_timebase(void);
354extern void rtas_take_timebase(void);
355
356#ifdef CONFIG_PPC_RTAS
357static inline int page_is_rtas_user_buf(unsigned long pfn)
358{
359 unsigned long paddr = (pfn << PAGE_SHIFT);
360 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE))
361 return 1;
362 return 0;
363}
364
365
366
367extern void pSeries_coalesce_init(void);
368void rtas_initialize(void);
369#else
370static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
371static inline void pSeries_coalesce_init(void) { }
372static inline void rtas_initialize(void) { }
373#endif
374
375extern int call_rtas(const char *, int, int, unsigned long *, ...);
376
377#ifdef CONFIG_HV_PERF_CTRS
378void read_24x7_sys_info(void);
379#else
380static inline void read_24x7_sys_info(void) { }
381#endif
382
383#endif
384#endif
385