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1da177e4 LT |
1 | #ifndef _ASM_IA64_SN_SN_SAL_H |
2 | #define _ASM_IA64_SN_SN_SAL_H | |
3 | ||
4 | /* | |
5 | * System Abstraction Layer definitions for IA64 | |
6 | * | |
7 | * This file is subject to the terms and conditions of the GNU General Public | |
8 | * License. See the file "COPYING" in the main directory of this archive | |
9 | * for more details. | |
10 | * | |
93a07d0a | 11 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. All rights reserved. |
1da177e4 LT |
12 | */ |
13 | ||
14 | ||
15 | #include <linux/config.h> | |
16 | #include <asm/sal.h> | |
17 | #include <asm/sn/sn_cpuid.h> | |
18 | #include <asm/sn/arch.h> | |
19 | #include <asm/sn/geo.h> | |
20 | #include <asm/sn/nodepda.h> | |
21 | #include <asm/sn/shub_mmr.h> | |
22 | ||
23 | // SGI Specific Calls | |
24 | #define SN_SAL_POD_MODE 0x02000001 | |
25 | #define SN_SAL_SYSTEM_RESET 0x02000002 | |
26 | #define SN_SAL_PROBE 0x02000003 | |
27 | #define SN_SAL_GET_MASTER_NASID 0x02000004 | |
28 | #define SN_SAL_GET_KLCONFIG_ADDR 0x02000005 | |
29 | #define SN_SAL_LOG_CE 0x02000006 | |
30 | #define SN_SAL_REGISTER_CE 0x02000007 | |
31 | #define SN_SAL_GET_PARTITION_ADDR 0x02000009 | |
32 | #define SN_SAL_XP_ADDR_REGION 0x0200000f | |
33 | #define SN_SAL_NO_FAULT_ZONE_VIRTUAL 0x02000010 | |
34 | #define SN_SAL_NO_FAULT_ZONE_PHYSICAL 0x02000011 | |
35 | #define SN_SAL_PRINT_ERROR 0x02000012 | |
36 | #define SN_SAL_SET_ERROR_HANDLING_FEATURES 0x0200001a // reentrant | |
37 | #define SN_SAL_GET_FIT_COMPT 0x0200001b // reentrant | |
1da177e4 | 38 | #define SN_SAL_GET_SAPIC_INFO 0x0200001d |
bf1cf98f | 39 | #define SN_SAL_GET_SN_INFO 0x0200001e |
1da177e4 LT |
40 | #define SN_SAL_CONSOLE_PUTC 0x02000021 |
41 | #define SN_SAL_CONSOLE_GETC 0x02000022 | |
42 | #define SN_SAL_CONSOLE_PUTS 0x02000023 | |
43 | #define SN_SAL_CONSOLE_GETS 0x02000024 | |
44 | #define SN_SAL_CONSOLE_GETS_TIMEOUT 0x02000025 | |
45 | #define SN_SAL_CONSOLE_POLL 0x02000026 | |
46 | #define SN_SAL_CONSOLE_INTR 0x02000027 | |
47 | #define SN_SAL_CONSOLE_PUTB 0x02000028 | |
48 | #define SN_SAL_CONSOLE_XMIT_CHARS 0x0200002a | |
49 | #define SN_SAL_CONSOLE_READC 0x0200002b | |
50 | #define SN_SAL_SYSCTL_MODID_GET 0x02000031 | |
51 | #define SN_SAL_SYSCTL_GET 0x02000032 | |
52 | #define SN_SAL_SYSCTL_IOBRICK_MODULE_GET 0x02000033 | |
53 | #define SN_SAL_SYSCTL_IO_PORTSPEED_GET 0x02000035 | |
54 | #define SN_SAL_SYSCTL_SLAB_GET 0x02000036 | |
55 | #define SN_SAL_BUS_CONFIG 0x02000037 | |
56 | #define SN_SAL_SYS_SERIAL_GET 0x02000038 | |
57 | #define SN_SAL_PARTITION_SERIAL_GET 0x02000039 | |
58 | #define SN_SAL_SYSCTL_PARTITION_GET 0x0200003a | |
59 | #define SN_SAL_SYSTEM_POWER_DOWN 0x0200003b | |
60 | #define SN_SAL_GET_MASTER_BASEIO_NASID 0x0200003c | |
61 | #define SN_SAL_COHERENCE 0x0200003d | |
62 | #define SN_SAL_MEMPROTECT 0x0200003e | |
63 | #define SN_SAL_SYSCTL_FRU_CAPTURE 0x0200003f | |
64 | ||
65 | #define SN_SAL_SYSCTL_IOBRICK_PCI_OP 0x02000042 // reentrant | |
66 | #define SN_SAL_IROUTER_OP 0x02000043 | |
67639deb | 67 | #define SN_SAL_SYSCTL_EVENT 0x02000044 |
1da177e4 LT |
68 | #define SN_SAL_IOIF_INTERRUPT 0x0200004a |
69 | #define SN_SAL_HWPERF_OP 0x02000050 // lock | |
70 | #define SN_SAL_IOIF_ERROR_INTERRUPT 0x02000051 | |
71 | ||
72 | #define SN_SAL_IOIF_SLOT_ENABLE 0x02000053 | |
73 | #define SN_SAL_IOIF_SLOT_DISABLE 0x02000054 | |
74 | #define SN_SAL_IOIF_GET_HUBDEV_INFO 0x02000055 | |
75 | #define SN_SAL_IOIF_GET_PCIBUS_INFO 0x02000056 | |
76 | #define SN_SAL_IOIF_GET_PCIDEV_INFO 0x02000057 | |
77 | #define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058 | |
78 | ||
79 | #define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060 | |
93a07d0a | 80 | #define SN_SAL_BTE_RECOVER 0x02000061 |
0985ea8f | 81 | #define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000062 |
1da177e4 LT |
82 | |
83 | /* | |
84 | * Service-specific constants | |
85 | */ | |
86 | ||
87 | /* Console interrupt manipulation */ | |
88 | /* action codes */ | |
89 | #define SAL_CONSOLE_INTR_OFF 0 /* turn the interrupt off */ | |
90 | #define SAL_CONSOLE_INTR_ON 1 /* turn the interrupt on */ | |
91 | #define SAL_CONSOLE_INTR_STATUS 2 /* retrieve the interrupt status */ | |
92 | /* interrupt specification & status return codes */ | |
93 | #define SAL_CONSOLE_INTR_XMIT 1 /* output interrupt */ | |
94 | #define SAL_CONSOLE_INTR_RECV 2 /* input interrupt */ | |
95 | ||
96 | /* interrupt handling */ | |
97 | #define SAL_INTR_ALLOC 1 | |
98 | #define SAL_INTR_FREE 2 | |
99 | ||
100 | /* | |
101 | * IRouter (i.e. generalized system controller) operations | |
102 | */ | |
103 | #define SAL_IROUTER_OPEN 0 /* open a subchannel */ | |
104 | #define SAL_IROUTER_CLOSE 1 /* close a subchannel */ | |
105 | #define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */ | |
106 | #define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */ | |
107 | #define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for | |
108 | * an open subchannel | |
109 | */ | |
110 | #define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */ | |
111 | #define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */ | |
112 | #define SAL_IROUTER_INIT 7 /* initialize IRouter driver */ | |
113 | ||
114 | /* IRouter interrupt mask bits */ | |
115 | #define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT | |
116 | #define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV | |
117 | ||
6872ec54 RA |
118 | /* |
119 | * Error Handling Features | |
120 | */ | |
121 | #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 | |
122 | #define SAL_ERR_FEAT_LOG_SBES 0x2 | |
123 | #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4 | |
124 | #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000 | |
1da177e4 LT |
125 | |
126 | /* | |
127 | * SAL Error Codes | |
128 | */ | |
129 | #define SALRET_MORE_PASSES 1 | |
130 | #define SALRET_OK 0 | |
131 | #define SALRET_NOT_IMPLEMENTED (-1) | |
132 | #define SALRET_INVALID_ARG (-2) | |
133 | #define SALRET_ERROR (-3) | |
134 | ||
71a5d027 JS |
135 | #define SN_SAL_FAKE_PROM 0x02009999 |
136 | ||
1da177e4 LT |
137 | |
138 | /** | |
139 | * sn_sal_rev_major - get the major SGI SAL revision number | |
140 | * | |
141 | * The SGI PROM stores its version in sal_[ab]_rev_(major|minor). | |
142 | * This routine simply extracts the major value from the | |
143 | * @ia64_sal_systab structure constructed by ia64_sal_init(). | |
144 | */ | |
145 | static inline int | |
146 | sn_sal_rev_major(void) | |
147 | { | |
148 | struct ia64_sal_systab *systab = efi.sal_systab; | |
149 | ||
150 | return (int)systab->sal_b_rev_major; | |
151 | } | |
152 | ||
153 | /** | |
154 | * sn_sal_rev_minor - get the minor SGI SAL revision number | |
155 | * | |
156 | * The SGI PROM stores its version in sal_[ab]_rev_(major|minor). | |
157 | * This routine simply extracts the minor value from the | |
158 | * @ia64_sal_systab structure constructed by ia64_sal_init(). | |
159 | */ | |
160 | static inline int | |
161 | sn_sal_rev_minor(void) | |
162 | { | |
163 | struct ia64_sal_systab *systab = efi.sal_systab; | |
164 | ||
165 | return (int)systab->sal_b_rev_minor; | |
166 | } | |
167 | ||
168 | /* | |
169 | * Specify the minimum PROM revsion required for this kernel. | |
170 | * Note that they're stored in hex format... | |
171 | */ | |
172 | #define SN_SAL_MIN_MAJOR 0x4 /* SN2 kernels need at least PROM 4.0 */ | |
173 | #define SN_SAL_MIN_MINOR 0x0 | |
174 | ||
175 | /* | |
176 | * Returns the master console nasid, if the call fails, return an illegal | |
177 | * value. | |
178 | */ | |
179 | static inline u64 | |
180 | ia64_sn_get_console_nasid(void) | |
181 | { | |
182 | struct ia64_sal_retval ret_stuff; | |
183 | ||
184 | ret_stuff.status = 0; | |
185 | ret_stuff.v0 = 0; | |
186 | ret_stuff.v1 = 0; | |
187 | ret_stuff.v2 = 0; | |
188 | SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0); | |
189 | ||
190 | if (ret_stuff.status < 0) | |
191 | return ret_stuff.status; | |
192 | ||
193 | /* Master console nasid is in 'v0' */ | |
194 | return ret_stuff.v0; | |
195 | } | |
196 | ||
197 | /* | |
198 | * Returns the master baseio nasid, if the call fails, return an illegal | |
199 | * value. | |
200 | */ | |
201 | static inline u64 | |
202 | ia64_sn_get_master_baseio_nasid(void) | |
203 | { | |
204 | struct ia64_sal_retval ret_stuff; | |
205 | ||
206 | ret_stuff.status = 0; | |
207 | ret_stuff.v0 = 0; | |
208 | ret_stuff.v1 = 0; | |
209 | ret_stuff.v2 = 0; | |
210 | SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0); | |
211 | ||
212 | if (ret_stuff.status < 0) | |
213 | return ret_stuff.status; | |
214 | ||
215 | /* Master baseio nasid is in 'v0' */ | |
216 | return ret_stuff.v0; | |
217 | } | |
218 | ||
219 | static inline char * | |
220 | ia64_sn_get_klconfig_addr(nasid_t nasid) | |
221 | { | |
222 | struct ia64_sal_retval ret_stuff; | |
223 | int cnodeid; | |
224 | ||
225 | cnodeid = nasid_to_cnodeid(nasid); | |
226 | ret_stuff.status = 0; | |
227 | ret_stuff.v0 = 0; | |
228 | ret_stuff.v1 = 0; | |
229 | ret_stuff.v2 = 0; | |
230 | SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0); | |
231 | ||
232 | /* | |
233 | * We should panic if a valid cnode nasid does not produce | |
234 | * a klconfig address. | |
235 | */ | |
236 | if (ret_stuff.status != 0) { | |
237 | panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status); | |
238 | } | |
239 | return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL; | |
240 | } | |
241 | ||
242 | /* | |
243 | * Returns the next console character. | |
244 | */ | |
245 | static inline u64 | |
246 | ia64_sn_console_getc(int *ch) | |
247 | { | |
248 | struct ia64_sal_retval ret_stuff; | |
249 | ||
250 | ret_stuff.status = 0; | |
251 | ret_stuff.v0 = 0; | |
252 | ret_stuff.v1 = 0; | |
253 | ret_stuff.v2 = 0; | |
254 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0); | |
255 | ||
256 | /* character is in 'v0' */ | |
257 | *ch = (int)ret_stuff.v0; | |
258 | ||
259 | return ret_stuff.status; | |
260 | } | |
261 | ||
262 | /* | |
263 | * Read a character from the SAL console device, after a previous interrupt | |
264 | * or poll operation has given us to know that a character is available | |
265 | * to be read. | |
266 | */ | |
267 | static inline u64 | |
268 | ia64_sn_console_readc(void) | |
269 | { | |
270 | struct ia64_sal_retval ret_stuff; | |
271 | ||
272 | ret_stuff.status = 0; | |
273 | ret_stuff.v0 = 0; | |
274 | ret_stuff.v1 = 0; | |
275 | ret_stuff.v2 = 0; | |
276 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0); | |
277 | ||
278 | /* character is in 'v0' */ | |
279 | return ret_stuff.v0; | |
280 | } | |
281 | ||
282 | /* | |
283 | * Sends the given character to the console. | |
284 | */ | |
285 | static inline u64 | |
286 | ia64_sn_console_putc(char ch) | |
287 | { | |
288 | struct ia64_sal_retval ret_stuff; | |
289 | ||
290 | ret_stuff.status = 0; | |
291 | ret_stuff.v0 = 0; | |
292 | ret_stuff.v1 = 0; | |
293 | ret_stuff.v2 = 0; | |
294 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (uint64_t)ch, 0, 0, 0, 0, 0, 0); | |
295 | ||
296 | return ret_stuff.status; | |
297 | } | |
298 | ||
299 | /* | |
300 | * Sends the given buffer to the console. | |
301 | */ | |
302 | static inline u64 | |
303 | ia64_sn_console_putb(const char *buf, int len) | |
304 | { | |
305 | struct ia64_sal_retval ret_stuff; | |
306 | ||
307 | ret_stuff.status = 0; | |
308 | ret_stuff.v0 = 0; | |
309 | ret_stuff.v1 = 0; | |
310 | ret_stuff.v2 = 0; | |
311 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (uint64_t)buf, (uint64_t)len, 0, 0, 0, 0, 0); | |
312 | ||
313 | if ( ret_stuff.status == 0 ) { | |
314 | return ret_stuff.v0; | |
315 | } | |
316 | return (u64)0; | |
317 | } | |
318 | ||
319 | /* | |
320 | * Print a platform error record | |
321 | */ | |
322 | static inline u64 | |
323 | ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec) | |
324 | { | |
325 | struct ia64_sal_retval ret_stuff; | |
326 | ||
327 | ret_stuff.status = 0; | |
328 | ret_stuff.v0 = 0; | |
329 | ret_stuff.v1 = 0; | |
330 | ret_stuff.v2 = 0; | |
331 | SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (uint64_t)hook, (uint64_t)rec, 0, 0, 0, 0, 0); | |
332 | ||
333 | return ret_stuff.status; | |
334 | } | |
335 | ||
336 | /* | |
337 | * Check for Platform errors | |
338 | */ | |
339 | static inline u64 | |
340 | ia64_sn_plat_cpei_handler(void) | |
341 | { | |
342 | struct ia64_sal_retval ret_stuff; | |
343 | ||
344 | ret_stuff.status = 0; | |
345 | ret_stuff.v0 = 0; | |
346 | ret_stuff.v1 = 0; | |
347 | ret_stuff.v2 = 0; | |
348 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0); | |
349 | ||
350 | return ret_stuff.status; | |
351 | } | |
352 | ||
6872ec54 RA |
353 | /* |
354 | * Set Error Handling Features | |
355 | */ | |
356 | static inline u64 | |
357 | ia64_sn_plat_set_error_handling_features(void) | |
358 | { | |
359 | struct ia64_sal_retval ret_stuff; | |
360 | ||
361 | ret_stuff.status = 0; | |
362 | ret_stuff.v0 = 0; | |
363 | ret_stuff.v1 = 0; | |
364 | ret_stuff.v2 = 0; | |
365 | SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES, | |
366 | (SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES), | |
367 | 0, 0, 0, 0, 0, 0); | |
368 | ||
369 | return ret_stuff.status; | |
370 | } | |
371 | ||
1da177e4 LT |
372 | /* |
373 | * Checks for console input. | |
374 | */ | |
375 | static inline u64 | |
376 | ia64_sn_console_check(int *result) | |
377 | { | |
378 | struct ia64_sal_retval ret_stuff; | |
379 | ||
380 | ret_stuff.status = 0; | |
381 | ret_stuff.v0 = 0; | |
382 | ret_stuff.v1 = 0; | |
383 | ret_stuff.v2 = 0; | |
384 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0); | |
385 | ||
386 | /* result is in 'v0' */ | |
387 | *result = (int)ret_stuff.v0; | |
388 | ||
389 | return ret_stuff.status; | |
390 | } | |
391 | ||
392 | /* | |
393 | * Checks console interrupt status | |
394 | */ | |
395 | static inline u64 | |
396 | ia64_sn_console_intr_status(void) | |
397 | { | |
398 | struct ia64_sal_retval ret_stuff; | |
399 | ||
400 | ret_stuff.status = 0; | |
401 | ret_stuff.v0 = 0; | |
402 | ret_stuff.v1 = 0; | |
403 | ret_stuff.v2 = 0; | |
404 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR, | |
405 | 0, SAL_CONSOLE_INTR_STATUS, | |
406 | 0, 0, 0, 0, 0); | |
407 | ||
408 | if (ret_stuff.status == 0) { | |
409 | return ret_stuff.v0; | |
410 | } | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | /* | |
416 | * Enable an interrupt on the SAL console device. | |
417 | */ | |
418 | static inline void | |
419 | ia64_sn_console_intr_enable(uint64_t intr) | |
420 | { | |
421 | struct ia64_sal_retval ret_stuff; | |
422 | ||
423 | ret_stuff.status = 0; | |
424 | ret_stuff.v0 = 0; | |
425 | ret_stuff.v1 = 0; | |
426 | ret_stuff.v2 = 0; | |
427 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR, | |
428 | intr, SAL_CONSOLE_INTR_ON, | |
429 | 0, 0, 0, 0, 0); | |
430 | } | |
431 | ||
432 | /* | |
433 | * Disable an interrupt on the SAL console device. | |
434 | */ | |
435 | static inline void | |
436 | ia64_sn_console_intr_disable(uint64_t intr) | |
437 | { | |
438 | struct ia64_sal_retval ret_stuff; | |
439 | ||
440 | ret_stuff.status = 0; | |
441 | ret_stuff.v0 = 0; | |
442 | ret_stuff.v1 = 0; | |
443 | ret_stuff.v2 = 0; | |
444 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR, | |
445 | intr, SAL_CONSOLE_INTR_OFF, | |
446 | 0, 0, 0, 0, 0); | |
447 | } | |
448 | ||
449 | /* | |
450 | * Sends a character buffer to the console asynchronously. | |
451 | */ | |
452 | static inline u64 | |
453 | ia64_sn_console_xmit_chars(char *buf, int len) | |
454 | { | |
455 | struct ia64_sal_retval ret_stuff; | |
456 | ||
457 | ret_stuff.status = 0; | |
458 | ret_stuff.v0 = 0; | |
459 | ret_stuff.v1 = 0; | |
460 | ret_stuff.v2 = 0; | |
461 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS, | |
462 | (uint64_t)buf, (uint64_t)len, | |
463 | 0, 0, 0, 0, 0); | |
464 | ||
465 | if (ret_stuff.status == 0) { | |
466 | return ret_stuff.v0; | |
467 | } | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | /* | |
473 | * Returns the iobrick module Id | |
474 | */ | |
475 | static inline u64 | |
476 | ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result) | |
477 | { | |
478 | struct ia64_sal_retval ret_stuff; | |
479 | ||
480 | ret_stuff.status = 0; | |
481 | ret_stuff.v0 = 0; | |
482 | ret_stuff.v1 = 0; | |
483 | ret_stuff.v2 = 0; | |
484 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0); | |
485 | ||
486 | /* result is in 'v0' */ | |
487 | *result = (int)ret_stuff.v0; | |
488 | ||
489 | return ret_stuff.status; | |
490 | } | |
491 | ||
492 | /** | |
493 | * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function | |
494 | * | |
495 | * SN_SAL_POD_MODE actually takes an argument, but it's always | |
496 | * 0 when we call it from the kernel, so we don't have to expose | |
497 | * it to the caller. | |
498 | */ | |
499 | static inline u64 | |
500 | ia64_sn_pod_mode(void) | |
501 | { | |
502 | struct ia64_sal_retval isrv; | |
8eac3757 | 503 | SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0); |
1da177e4 LT |
504 | if (isrv.status) |
505 | return 0; | |
506 | return isrv.v0; | |
507 | } | |
508 | ||
509 | /** | |
510 | * ia64_sn_probe_mem - read from memory safely | |
511 | * @addr: address to probe | |
512 | * @size: number bytes to read (1,2,4,8) | |
513 | * @data_ptr: address to store value read by probe (-1 returned if probe fails) | |
514 | * | |
515 | * Call into the SAL to do a memory read. If the read generates a machine | |
516 | * check, this routine will recover gracefully and return -1 to the caller. | |
517 | * @addr is usually a kernel virtual address in uncached space (i.e. the | |
518 | * address starts with 0xc), but if called in physical mode, @addr should | |
519 | * be a physical address. | |
520 | * | |
521 | * Return values: | |
522 | * 0 - probe successful | |
523 | * 1 - probe failed (generated MCA) | |
524 | * 2 - Bad arg | |
525 | * <0 - PAL error | |
526 | */ | |
527 | static inline u64 | |
528 | ia64_sn_probe_mem(long addr, long size, void *data_ptr) | |
529 | { | |
530 | struct ia64_sal_retval isrv; | |
531 | ||
532 | SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0); | |
533 | ||
534 | if (data_ptr) { | |
535 | switch (size) { | |
536 | case 1: | |
537 | *((u8*)data_ptr) = (u8)isrv.v0; | |
538 | break; | |
539 | case 2: | |
540 | *((u16*)data_ptr) = (u16)isrv.v0; | |
541 | break; | |
542 | case 4: | |
543 | *((u32*)data_ptr) = (u32)isrv.v0; | |
544 | break; | |
545 | case 8: | |
546 | *((u64*)data_ptr) = (u64)isrv.v0; | |
547 | break; | |
548 | default: | |
549 | isrv.status = 2; | |
550 | } | |
551 | } | |
552 | return isrv.status; | |
553 | } | |
554 | ||
555 | /* | |
556 | * Retrieve the system serial number as an ASCII string. | |
557 | */ | |
558 | static inline u64 | |
559 | ia64_sn_sys_serial_get(char *buf) | |
560 | { | |
561 | struct ia64_sal_retval ret_stuff; | |
562 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0); | |
563 | return ret_stuff.status; | |
564 | } | |
565 | ||
566 | extern char sn_system_serial_number_string[]; | |
567 | extern u64 sn_partition_serial_number; | |
568 | ||
569 | static inline char * | |
570 | sn_system_serial_number(void) { | |
571 | if (sn_system_serial_number_string[0]) { | |
572 | return(sn_system_serial_number_string); | |
573 | } else { | |
574 | ia64_sn_sys_serial_get(sn_system_serial_number_string); | |
575 | return(sn_system_serial_number_string); | |
576 | } | |
577 | } | |
578 | ||
579 | ||
580 | /* | |
581 | * Returns a unique id number for this system and partition (suitable for | |
582 | * use with license managers), based in part on the system serial number. | |
583 | */ | |
584 | static inline u64 | |
585 | ia64_sn_partition_serial_get(void) | |
586 | { | |
587 | struct ia64_sal_retval ret_stuff; | |
b48fc7bb DN |
588 | ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0, |
589 | 0, 0, 0, 0, 0, 0); | |
1da177e4 LT |
590 | if (ret_stuff.status != 0) |
591 | return 0; | |
592 | return ret_stuff.v0; | |
593 | } | |
594 | ||
595 | static inline u64 | |
596 | sn_partition_serial_number_val(void) { | |
b48fc7bb DN |
597 | if (unlikely(sn_partition_serial_number == 0)) { |
598 | sn_partition_serial_number = ia64_sn_partition_serial_get(); | |
1da177e4 | 599 | } |
b48fc7bb | 600 | return sn_partition_serial_number; |
1da177e4 LT |
601 | } |
602 | ||
603 | /* | |
604 | * Returns the partition id of the nasid passed in as an argument, | |
605 | * or INVALID_PARTID if the partition id cannot be retrieved. | |
606 | */ | |
607 | static inline partid_t | |
608 | ia64_sn_sysctl_partition_get(nasid_t nasid) | |
609 | { | |
610 | struct ia64_sal_retval ret_stuff; | |
b48fc7bb DN |
611 | ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid, |
612 | 0, 0, 0, 0, 0, 0); | |
1da177e4 LT |
613 | if (ret_stuff.status != 0) |
614 | return INVALID_PARTID; | |
615 | return ((partid_t)ret_stuff.v0); | |
616 | } | |
617 | ||
618 | /* | |
619 | * Returns the partition id of the current processor. | |
620 | */ | |
621 | ||
622 | extern partid_t sn_partid; | |
623 | ||
624 | static inline partid_t | |
625 | sn_local_partid(void) { | |
b48fc7bb DN |
626 | if (unlikely(sn_partid < 0)) { |
627 | sn_partid = ia64_sn_sysctl_partition_get(cpuid_to_nasid(smp_processor_id())); | |
1da177e4 | 628 | } |
b48fc7bb DN |
629 | return sn_partid; |
630 | } | |
631 | ||
632 | /* | |
633 | * Returns the physical address of the partition's reserved page through | |
634 | * an iterative number of calls. | |
635 | * | |
636 | * On first call, 'cookie' and 'len' should be set to 0, and 'addr' | |
637 | * set to the nasid of the partition whose reserved page's address is | |
638 | * being sought. | |
639 | * On subsequent calls, pass the values, that were passed back on the | |
640 | * previous call. | |
641 | * | |
642 | * While the return status equals SALRET_MORE_PASSES, keep calling | |
643 | * this function after first copying 'len' bytes starting at 'addr' | |
644 | * into 'buf'. Once the return status equals SALRET_OK, 'addr' will | |
645 | * be the physical address of the partition's reserved page. If the | |
646 | * return status equals neither of these, an error as occurred. | |
647 | */ | |
648 | static inline s64 | |
649 | sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len) | |
650 | { | |
651 | struct ia64_sal_retval rv; | |
652 | ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie, | |
653 | *addr, buf, *len, 0, 0, 0); | |
654 | *cookie = rv.v0; | |
655 | *addr = rv.v1; | |
656 | *len = rv.v2; | |
657 | return rv.status; | |
1da177e4 LT |
658 | } |
659 | ||
660 | /* | |
661 | * Register or unregister a physical address range being referenced across | |
662 | * a partition boundary for which certain SAL errors should be scanned for, | |
663 | * cleaned up and ignored. This is of value for kernel partitioning code only. | |
664 | * Values for the operation argument: | |
665 | * 1 = register this address range with SAL | |
666 | * 0 = unregister this address range with SAL | |
667 | * | |
668 | * SAL maintains a reference count on an address range in case it is registered | |
669 | * multiple times. | |
670 | * | |
671 | * On success, returns the reference count of the address range after the SAL | |
672 | * call has performed the current registration/unregistration. Returns a | |
673 | * negative value if an error occurred. | |
674 | */ | |
675 | static inline int | |
676 | sn_register_xp_addr_region(u64 paddr, u64 len, int operation) | |
677 | { | |
678 | struct ia64_sal_retval ret_stuff; | |
b48fc7bb DN |
679 | ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len, |
680 | (u64)operation, 0, 0, 0, 0); | |
1da177e4 LT |
681 | return ret_stuff.status; |
682 | } | |
683 | ||
684 | /* | |
685 | * Register or unregister an instruction range for which SAL errors should | |
686 | * be ignored. If an error occurs while in the registered range, SAL jumps | |
687 | * to return_addr after ignoring the error. Values for the operation argument: | |
688 | * 1 = register this instruction range with SAL | |
689 | * 0 = unregister this instruction range with SAL | |
690 | * | |
691 | * Returns 0 on success, or a negative value if an error occurred. | |
692 | */ | |
693 | static inline int | |
694 | sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr, | |
695 | int virtual, int operation) | |
696 | { | |
697 | struct ia64_sal_retval ret_stuff; | |
698 | u64 call; | |
699 | if (virtual) { | |
700 | call = SN_SAL_NO_FAULT_ZONE_VIRTUAL; | |
701 | } else { | |
702 | call = SN_SAL_NO_FAULT_ZONE_PHYSICAL; | |
703 | } | |
b48fc7bb DN |
704 | ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr, |
705 | (u64)1, 0, 0, 0); | |
1da177e4 LT |
706 | return ret_stuff.status; |
707 | } | |
708 | ||
709 | /* | |
710 | * Change or query the coherence domain for this partition. Each cpu-based | |
711 | * nasid is represented by a bit in an array of 64-bit words: | |
712 | * 0 = not in this partition's coherency domain | |
713 | * 1 = in this partition's coherency domain | |
714 | * | |
715 | * It is not possible for the local system's nasids to be removed from | |
716 | * the coherency domain. Purpose of the domain arguments: | |
717 | * new_domain = set the coherence domain to the given nasids | |
718 | * old_domain = return the current coherence domain | |
719 | * | |
720 | * Returns 0 on success, or a negative value if an error occurred. | |
721 | */ | |
722 | static inline int | |
723 | sn_change_coherence(u64 *new_domain, u64 *old_domain) | |
724 | { | |
725 | struct ia64_sal_retval ret_stuff; | |
b48fc7bb DN |
726 | ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain, |
727 | (u64)old_domain, 0, 0, 0, 0, 0); | |
1da177e4 LT |
728 | return ret_stuff.status; |
729 | } | |
730 | ||
731 | /* | |
732 | * Change memory access protections for a physical address range. | |
733 | * nasid_array is not used on Altix, but may be in future architectures. | |
734 | * Available memory protection access classes are defined after the function. | |
735 | */ | |
736 | static inline int | |
737 | sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array) | |
738 | { | |
739 | struct ia64_sal_retval ret_stuff; | |
740 | int cnodeid; | |
741 | unsigned long irq_flags; | |
742 | ||
743 | cnodeid = nasid_to_cnodeid(get_node_number(paddr)); | |
744 | // spin_lock(&NODEPDA(cnodeid)->bist_lock); | |
745 | local_irq_save(irq_flags); | |
b48fc7bb DN |
746 | ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len, |
747 | (u64)nasid_array, perms, 0, 0, 0); | |
1da177e4 LT |
748 | local_irq_restore(irq_flags); |
749 | // spin_unlock(&NODEPDA(cnodeid)->bist_lock); | |
750 | return ret_stuff.status; | |
751 | } | |
752 | #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080 | |
753 | #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2 | |
754 | #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca | |
755 | #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290 | |
756 | #define SN_MEMPROT_ACCESS_CLASS_6 0x084080 | |
757 | #define SN_MEMPROT_ACCESS_CLASS_7 0x021080 | |
758 | ||
759 | /* | |
760 | * Turns off system power. | |
761 | */ | |
762 | static inline void | |
763 | ia64_sn_power_down(void) | |
764 | { | |
765 | struct ia64_sal_retval ret_stuff; | |
766 | SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0); | |
767 | while(1); | |
768 | /* never returns */ | |
769 | } | |
770 | ||
771 | /** | |
772 | * ia64_sn_fru_capture - tell the system controller to capture hw state | |
773 | * | |
774 | * This routine will call the SAL which will tell the system controller(s) | |
775 | * to capture hw mmr information from each SHub in the system. | |
776 | */ | |
777 | static inline u64 | |
778 | ia64_sn_fru_capture(void) | |
779 | { | |
780 | struct ia64_sal_retval isrv; | |
781 | SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0); | |
782 | if (isrv.status) | |
783 | return 0; | |
784 | return isrv.v0; | |
785 | } | |
786 | ||
787 | /* | |
788 | * Performs an operation on a PCI bus or slot -- power up, power down | |
789 | * or reset. | |
790 | */ | |
791 | static inline u64 | |
792 | ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type, | |
793 | u64 bus, char slot, | |
794 | u64 action) | |
795 | { | |
796 | struct ia64_sal_retval rv = {0, 0, 0, 0}; | |
797 | ||
798 | SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action, | |
799 | bus, (u64) slot, 0, 0); | |
800 | if (rv.status) | |
801 | return rv.v0; | |
802 | return 0; | |
803 | } | |
804 | ||
805 | ||
806 | /* | |
807 | * Open a subchannel for sending arbitrary data to the system | |
808 | * controller network via the system controller device associated with | |
809 | * 'nasid'. Return the subchannel number or a negative error code. | |
810 | */ | |
811 | static inline int | |
812 | ia64_sn_irtr_open(nasid_t nasid) | |
813 | { | |
814 | struct ia64_sal_retval rv; | |
815 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid, | |
816 | 0, 0, 0, 0, 0); | |
817 | return (int) rv.v0; | |
818 | } | |
819 | ||
820 | /* | |
821 | * Close system controller subchannel 'subch' previously opened on 'nasid'. | |
822 | */ | |
823 | static inline int | |
824 | ia64_sn_irtr_close(nasid_t nasid, int subch) | |
825 | { | |
826 | struct ia64_sal_retval rv; | |
827 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE, | |
828 | (u64) nasid, (u64) subch, 0, 0, 0, 0); | |
829 | return (int) rv.status; | |
830 | } | |
831 | ||
832 | /* | |
833 | * Read data from system controller associated with 'nasid' on | |
834 | * subchannel 'subch'. The buffer to be filled is pointed to by | |
835 | * 'buf', and its capacity is in the integer pointed to by 'len'. The | |
836 | * referent of 'len' is set to the number of bytes read by the SAL | |
837 | * call. The return value is either SALRET_OK (for bytes read) or | |
838 | * SALRET_ERROR (for error or "no data available"). | |
839 | */ | |
840 | static inline int | |
841 | ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len) | |
842 | { | |
843 | struct ia64_sal_retval rv; | |
844 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV, | |
845 | (u64) nasid, (u64) subch, (u64) buf, (u64) len, | |
846 | 0, 0); | |
847 | return (int) rv.status; | |
848 | } | |
849 | ||
850 | /* | |
851 | * Write data to the system controller network via the system | |
852 | * controller associated with 'nasid' on suchannel 'subch'. The | |
853 | * buffer to be written out is pointed to by 'buf', and 'len' is the | |
854 | * number of bytes to be written. The return value is either the | |
855 | * number of bytes written (which could be zero) or a negative error | |
856 | * code. | |
857 | */ | |
858 | static inline int | |
859 | ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len) | |
860 | { | |
861 | struct ia64_sal_retval rv; | |
862 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND, | |
863 | (u64) nasid, (u64) subch, (u64) buf, (u64) len, | |
864 | 0, 0); | |
865 | return (int) rv.v0; | |
866 | } | |
867 | ||
868 | /* | |
869 | * Check whether any interrupts are pending for the system controller | |
870 | * associated with 'nasid' and its subchannel 'subch'. The return | |
871 | * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or | |
872 | * SAL_IROUTER_INTR_RECV). | |
873 | */ | |
874 | static inline int | |
875 | ia64_sn_irtr_intr(nasid_t nasid, int subch) | |
876 | { | |
877 | struct ia64_sal_retval rv; | |
878 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS, | |
879 | (u64) nasid, (u64) subch, 0, 0, 0, 0); | |
880 | return (int) rv.v0; | |
881 | } | |
882 | ||
883 | /* | |
884 | * Enable the interrupt indicated by the intr parameter (either | |
885 | * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV). | |
886 | */ | |
887 | static inline int | |
888 | ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr) | |
889 | { | |
890 | struct ia64_sal_retval rv; | |
891 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON, | |
892 | (u64) nasid, (u64) subch, intr, 0, 0, 0); | |
893 | return (int) rv.v0; | |
894 | } | |
895 | ||
896 | /* | |
897 | * Disable the interrupt indicated by the intr parameter (either | |
898 | * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV). | |
899 | */ | |
900 | static inline int | |
901 | ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr) | |
902 | { | |
903 | struct ia64_sal_retval rv; | |
904 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF, | |
905 | (u64) nasid, (u64) subch, intr, 0, 0, 0); | |
906 | return (int) rv.v0; | |
907 | } | |
908 | ||
67639deb GH |
909 | /* |
910 | * Set up a node as the point of contact for system controller | |
911 | * environmental event delivery. | |
912 | */ | |
913 | static inline int | |
914 | ia64_sn_sysctl_event_init(nasid_t nasid) | |
915 | { | |
916 | struct ia64_sal_retval rv; | |
917 | SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid, | |
918 | 0, 0, 0, 0, 0, 0); | |
919 | return (int) rv.v0; | |
920 | } | |
921 | ||
1da177e4 LT |
922 | /** |
923 | * ia64_sn_get_fit_compt - read a FIT entry from the PROM header | |
924 | * @nasid: NASID of node to read | |
925 | * @index: FIT entry index to be retrieved (0..n) | |
926 | * @fitentry: 16 byte buffer where FIT entry will be stored. | |
927 | * @banbuf: optional buffer for retrieving banner | |
928 | * @banlen: length of banner buffer | |
929 | * | |
930 | * Access to the physical PROM chips needs to be serialized since reads and | |
931 | * writes can't occur at the same time, so we need to call into the SAL when | |
932 | * we want to look at the FIT entries on the chips. | |
933 | * | |
934 | * Returns: | |
935 | * %SALRET_OK if ok | |
936 | * %SALRET_INVALID_ARG if index too big | |
937 | * %SALRET_NOT_IMPLEMENTED if running on older PROM | |
938 | * ??? if nasid invalid OR banner buffer not large enough | |
939 | */ | |
940 | static inline int | |
941 | ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf, | |
942 | u64 banlen) | |
943 | { | |
944 | struct ia64_sal_retval rv; | |
945 | SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry, | |
946 | banbuf, banlen, 0, 0); | |
947 | return (int) rv.status; | |
948 | } | |
949 | ||
950 | /* | |
951 | * Initialize the SAL components of the system controller | |
952 | * communication driver; specifically pass in a sizable buffer that | |
953 | * can be used for allocation of subchannel queues as new subchannels | |
954 | * are opened. "buf" points to the buffer, and "len" specifies its | |
955 | * length. | |
956 | */ | |
957 | static inline int | |
958 | ia64_sn_irtr_init(nasid_t nasid, void *buf, int len) | |
959 | { | |
960 | struct ia64_sal_retval rv; | |
961 | SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT, | |
962 | (u64) nasid, (u64) buf, (u64) len, 0, 0, 0); | |
963 | return (int) rv.status; | |
964 | } | |
965 | ||
966 | /* | |
967 | * Returns the nasid, subnode & slice corresponding to a SAPIC ID | |
968 | * | |
969 | * In: | |
970 | * arg0 - SN_SAL_GET_SAPIC_INFO | |
971 | * arg1 - sapicid (lid >> 16) | |
972 | * Out: | |
973 | * v0 - nasid | |
974 | * v1 - subnode | |
975 | * v2 - slice | |
976 | */ | |
977 | static inline u64 | |
978 | ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice) | |
979 | { | |
980 | struct ia64_sal_retval ret_stuff; | |
981 | ||
982 | ret_stuff.status = 0; | |
983 | ret_stuff.v0 = 0; | |
984 | ret_stuff.v1 = 0; | |
985 | ret_stuff.v2 = 0; | |
986 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0); | |
987 | ||
988 | /***** BEGIN HACK - temp til old proms no longer supported ********/ | |
989 | if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) { | |
990 | if (nasid) *nasid = sapicid & 0xfff; | |
991 | if (subnode) *subnode = (sapicid >> 13) & 1; | |
992 | if (slice) *slice = (sapicid >> 12) & 3; | |
993 | return 0; | |
994 | } | |
995 | /***** END HACK *******/ | |
996 | ||
997 | if (ret_stuff.status < 0) | |
998 | return ret_stuff.status; | |
999 | ||
1000 | if (nasid) *nasid = (int) ret_stuff.v0; | |
1001 | if (subnode) *subnode = (int) ret_stuff.v1; | |
1002 | if (slice) *slice = (int) ret_stuff.v2; | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * Returns information about the HUB/SHUB. | |
1008 | * In: | |
1009 | * arg0 - SN_SAL_GET_SN_INFO | |
1010 | * arg1 - 0 (other values reserved for future use) | |
1011 | * Out: | |
1012 | * v0 | |
1013 | * [7:0] - shub type (0=shub1, 1=shub2) | |
1014 | * [15:8] - Log2 max number of nodes in entire system (includes | |
1015 | * C-bricks, I-bricks, etc) | |
1016 | * [23:16] - Log2 of nodes per sharing domain | |
1017 | * [31:24] - partition ID | |
1018 | * [39:32] - coherency_id | |
1019 | * [47:40] - regionsize | |
1020 | * v1 | |
1021 | * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid) | |
1022 | * [23:15] - bit position of low nasid bit | |
1023 | */ | |
1024 | static inline u64 | |
1025 | ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift, | |
1026 | u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg) | |
1027 | { | |
1028 | struct ia64_sal_retval ret_stuff; | |
1029 | ||
1030 | ret_stuff.status = 0; | |
1031 | ret_stuff.v0 = 0; | |
1032 | ret_stuff.v1 = 0; | |
1033 | ret_stuff.v2 = 0; | |
1034 | SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0); | |
1035 | ||
1036 | /***** BEGIN HACK - temp til old proms no longer supported ********/ | |
1037 | if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) { | |
1038 | int nasid = get_sapicid() & 0xfff;; | |
1039 | #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL | |
1040 | #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48 | |
1041 | if (shubtype) *shubtype = 0; | |
1042 | if (nasid_bitmask) *nasid_bitmask = 0x7ff; | |
1043 | if (nasid_shift) *nasid_shift = 38; | |
1044 | if (systemsize) *systemsize = 11; | |
1045 | if (sharing_domain_size) *sharing_domain_size = 9; | |
1046 | if (partid) *partid = ia64_sn_sysctl_partition_get(nasid); | |
1047 | if (coher) *coher = nasid >> 9; | |
1048 | if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >> | |
1049 | SH_SHUB_ID_NODES_PER_BIT_SHFT; | |
1050 | return 0; | |
1051 | } | |
1052 | /***** END HACK *******/ | |
1053 | ||
1054 | if (ret_stuff.status < 0) | |
1055 | return ret_stuff.status; | |
1056 | ||
1057 | if (shubtype) *shubtype = ret_stuff.v0 & 0xff; | |
1058 | if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff; | |
1059 | if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff; | |
1060 | if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff; | |
1061 | if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff; | |
1062 | if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff; | |
1063 | if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff); | |
1064 | if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff; | |
1065 | return 0; | |
1066 | } | |
1067 | ||
1068 | /* | |
1069 | * This is the access point to the Altix PROM hardware performance | |
1070 | * and status monitoring interface. For info on using this, see | |
1071 | * include/asm-ia64/sn/sn2/sn_hwperf.h | |
1072 | */ | |
1073 | static inline int | |
1074 | ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2, | |
1075 | u64 a3, u64 a4, int *v0) | |
1076 | { | |
1077 | struct ia64_sal_retval rv; | |
1078 | SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid, | |
1079 | opcode, a0, a1, a2, a3, a4); | |
1080 | if (v0) | |
1081 | *v0 = (int) rv.v0; | |
1082 | return (int) rv.status; | |
1083 | } | |
1084 | ||
4a5c13c7 MG |
1085 | static inline int |
1086 | ia64_sn_ioif_get_pci_topology(u64 rack, u64 bay, u64 slot, u64 slab, | |
0985ea8f | 1087 | u64 buf, u64 len) |
4a5c13c7 MG |
1088 | { |
1089 | struct ia64_sal_retval rv; | |
1090 | SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY, | |
1091 | rack, bay, slot, slab, buf, len, 0); | |
1092 | return (int) rv.status; | |
1093 | } | |
1094 | ||
93a07d0a RA |
1095 | /* |
1096 | * BTE error recovery is implemented in SAL | |
1097 | */ | |
1098 | static inline int | |
1099 | ia64_sn_bte_recovery(nasid_t nasid) | |
1100 | { | |
1101 | struct ia64_sal_retval rv; | |
1102 | ||
1103 | rv.status = 0; | |
1104 | SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, 0, 0, 0, 0, 0, 0, 0); | |
1105 | if (rv.status == SALRET_NOT_IMPLEMENTED) | |
1106 | return 0; | |
1107 | return (int) rv.status; | |
1108 | } | |
1109 | ||
71a5d027 JS |
1110 | static inline int |
1111 | ia64_sn_is_fake_prom(void) | |
1112 | { | |
1113 | struct ia64_sal_retval rv; | |
1114 | SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0); | |
1115 | return (rv.status == 0); | |
1116 | } | |
1117 | ||
1da177e4 | 1118 | #endif /* _ASM_IA64_SN_SN_SAL_H */ |