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Linux/arch/ia64/include/asm/sn/sn_sal.h

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  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  *
 11  * Copyright (c) 2000-2006 Silicon Graphics, Inc.  All rights reserved.
 12  */
 13 
 14 
 15 #include <asm/sal.h>
 16 #include <asm/sn/sn_cpuid.h>
 17 #include <asm/sn/arch.h>
 18 #include <asm/sn/geo.h>
 19 #include <asm/sn/nodepda.h>
 20 #include <asm/sn/shub_mmr.h>
 21 
 22 // SGI Specific Calls
 23 #define  SN_SAL_POD_MODE                           0x02000001
 24 #define  SN_SAL_SYSTEM_RESET                       0x02000002
 25 #define  SN_SAL_PROBE                              0x02000003
 26 #define  SN_SAL_GET_MASTER_NASID                   0x02000004
 27 #define  SN_SAL_GET_KLCONFIG_ADDR                  0x02000005
 28 #define  SN_SAL_LOG_CE                             0x02000006
 29 #define  SN_SAL_REGISTER_CE                        0x02000007
 30 #define  SN_SAL_GET_PARTITION_ADDR                 0x02000009
 31 #define  SN_SAL_XP_ADDR_REGION                     0x0200000f
 32 #define  SN_SAL_NO_FAULT_ZONE_VIRTUAL              0x02000010
 33 #define  SN_SAL_NO_FAULT_ZONE_PHYSICAL             0x02000011
 34 #define  SN_SAL_PRINT_ERROR                        0x02000012
 35 #define  SN_SAL_REGISTER_PMI_HANDLER               0x02000014
 36 #define  SN_SAL_SET_ERROR_HANDLING_FEATURES        0x0200001a   // reentrant
 37 #define  SN_SAL_GET_FIT_COMPT                      0x0200001b   // reentrant
 38 #define  SN_SAL_GET_SAPIC_INFO                     0x0200001d
 39 #define  SN_SAL_GET_SN_INFO                        0x0200001e
 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_OP                          0x02000030
 51 #define  SN_SAL_SYSCTL_MODID_GET                   0x02000031
 52 #define  SN_SAL_SYSCTL_GET                         0x02000032
 53 #define  SN_SAL_SYSCTL_IOBRICK_MODULE_GET          0x02000033
 54 #define  SN_SAL_SYSCTL_IO_PORTSPEED_GET            0x02000035
 55 #define  SN_SAL_SYSCTL_SLAB_GET                    0x02000036
 56 #define  SN_SAL_BUS_CONFIG                         0x02000037
 57 #define  SN_SAL_SYS_SERIAL_GET                     0x02000038
 58 #define  SN_SAL_PARTITION_SERIAL_GET               0x02000039
 59 #define  SN_SAL_SYSCTL_PARTITION_GET               0x0200003a
 60 #define  SN_SAL_SYSTEM_POWER_DOWN                  0x0200003b
 61 #define  SN_SAL_GET_MASTER_BASEIO_NASID            0x0200003c
 62 #define  SN_SAL_COHERENCE                          0x0200003d
 63 #define  SN_SAL_MEMPROTECT                         0x0200003e
 64 #define  SN_SAL_SYSCTL_FRU_CAPTURE                 0x0200003f
 65 
 66 #define  SN_SAL_SYSCTL_IOBRICK_PCI_OP              0x02000042   // reentrant
 67 #define  SN_SAL_IROUTER_OP                         0x02000043
 68 #define  SN_SAL_SYSCTL_EVENT                       0x02000044
 69 #define  SN_SAL_IOIF_INTERRUPT                     0x0200004a
 70 #define  SN_SAL_HWPERF_OP                          0x02000050   // lock
 71 #define  SN_SAL_IOIF_ERROR_INTERRUPT               0x02000051
 72 #define  SN_SAL_IOIF_PCI_SAFE                      0x02000052
 73 #define  SN_SAL_IOIF_SLOT_ENABLE                   0x02000053
 74 #define  SN_SAL_IOIF_SLOT_DISABLE                  0x02000054
 75 #define  SN_SAL_IOIF_GET_HUBDEV_INFO               0x02000055
 76 #define  SN_SAL_IOIF_GET_PCIBUS_INFO               0x02000056
 77 #define  SN_SAL_IOIF_GET_PCIDEV_INFO               0x02000057
 78 #define  SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST      0x02000058   // deprecated
 79 #define  SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST      0x0200005a
 80 
 81 #define SN_SAL_IOIF_INIT                           0x0200005f
 82 #define SN_SAL_HUB_ERROR_INTERRUPT                 0x02000060
 83 #define SN_SAL_BTE_RECOVER                         0x02000061
 84 #define SN_SAL_RESERVED_DO_NOT_USE                 0x02000062
 85 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY               0x02000064
 86 
 87 #define  SN_SAL_GET_PROM_FEATURE_SET               0x02000065
 88 #define  SN_SAL_SET_OS_FEATURE_SET                 0x02000066
 89 #define  SN_SAL_INJECT_ERROR                       0x02000067
 90 #define  SN_SAL_SET_CPU_NUMBER                     0x02000068
 91 
 92 #define  SN_SAL_KERNEL_LAUNCH_EVENT                0x02000069
 93 #define  SN_SAL_WATCHLIST_ALLOC                    0x02000070
 94 #define  SN_SAL_WATCHLIST_FREE                     0x02000071
 95 
 96 /*
 97  * Service-specific constants
 98  */
 99 
100 /* Console interrupt manipulation */
101         /* action codes */
102 #define SAL_CONSOLE_INTR_OFF    0       /* turn the interrupt off */
103 #define SAL_CONSOLE_INTR_ON     1       /* turn the interrupt on */
104 #define SAL_CONSOLE_INTR_STATUS 2       /* retrieve the interrupt status */
105         /* interrupt specification & status return codes */
106 #define SAL_CONSOLE_INTR_XMIT   1       /* output interrupt */
107 #define SAL_CONSOLE_INTR_RECV   2       /* input interrupt */
108 
109 /* interrupt handling */
110 #define SAL_INTR_ALLOC          1
111 #define SAL_INTR_FREE           2
112 #define SAL_INTR_REDIRECT       3
113 
114 /*
115  * operations available on the generic SN_SAL_SYSCTL_OP
116  * runtime service
117  */
118 #define SAL_SYSCTL_OP_IOBOARD           0x0001  /*  retrieve board type */
119 #define SAL_SYSCTL_OP_TIO_JLCK_RST      0x0002  /* issue TIO clock reset */
120 
121 /*
122  * IRouter (i.e. generalized system controller) operations
123  */
124 #define SAL_IROUTER_OPEN        0       /* open a subchannel */
125 #define SAL_IROUTER_CLOSE       1       /* close a subchannel */
126 #define SAL_IROUTER_SEND        2       /* send part of an IRouter packet */
127 #define SAL_IROUTER_RECV        3       /* receive part of an IRouter packet */
128 #define SAL_IROUTER_INTR_STATUS 4       /* check the interrupt status for
129                                          * an open subchannel
130                                          */
131 #define SAL_IROUTER_INTR_ON     5       /* enable an interrupt */
132 #define SAL_IROUTER_INTR_OFF    6       /* disable an interrupt */
133 #define SAL_IROUTER_INIT        7       /* initialize IRouter driver */
134 
135 /* IRouter interrupt mask bits */
136 #define SAL_IROUTER_INTR_XMIT   SAL_CONSOLE_INTR_XMIT
137 #define SAL_IROUTER_INTR_RECV   SAL_CONSOLE_INTR_RECV
138 
139 /*
140  * Error Handling Features
141  */
142 #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV     0x1     // obsolete
143 #define SAL_ERR_FEAT_LOG_SBES                   0x2     // obsolete
144 #define SAL_ERR_FEAT_MFR_OVERRIDE               0x4
145 #define SAL_ERR_FEAT_SBE_THRESHOLD              0xffff0000
146 
147 /*
148  * SAL Error Codes
149  */
150 #define SALRET_MORE_PASSES      1
151 #define SALRET_OK               0
152 #define SALRET_NOT_IMPLEMENTED  (-1)
153 #define SALRET_INVALID_ARG      (-2)
154 #define SALRET_ERROR            (-3)
155 
156 #define SN_SAL_FAKE_PROM                           0x02009999
157 
158 /**
159   * sn_sal_revision - get the SGI SAL revision number
160   *
161   * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
162   * This routine simply extracts the major and minor values and
163   * presents them in a u32 format.
164   *
165   * For example, version 4.05 would be represented at 0x0405.
166   */
167 static inline u32
168 sn_sal_rev(void)
169 {
170         struct ia64_sal_systab *systab = __va(efi.sal_systab);
171 
172         return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
173 }
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 void *
220 ia64_sn_get_klconfig_addr(nasid_t nasid)
221 {
222         struct ia64_sal_retval ret_stuff;
223 
224         ret_stuff.status = 0;
225         ret_stuff.v0 = 0;
226         ret_stuff.v1 = 0;
227         ret_stuff.v2 = 0;
228         SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
229         return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
230 }
231 
232 /*
233  * Returns the next console character.
234  */
235 static inline u64
236 ia64_sn_console_getc(int *ch)
237 {
238         struct ia64_sal_retval ret_stuff;
239 
240         ret_stuff.status = 0;
241         ret_stuff.v0 = 0;
242         ret_stuff.v1 = 0;
243         ret_stuff.v2 = 0;
244         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
245 
246         /* character is in 'v0' */
247         *ch = (int)ret_stuff.v0;
248 
249         return ret_stuff.status;
250 }
251 
252 /*
253  * Read a character from the SAL console device, after a previous interrupt
254  * or poll operation has given us to know that a character is available
255  * to be read.
256  */
257 static inline u64
258 ia64_sn_console_readc(void)
259 {
260         struct ia64_sal_retval ret_stuff;
261 
262         ret_stuff.status = 0;
263         ret_stuff.v0 = 0;
264         ret_stuff.v1 = 0;
265         ret_stuff.v2 = 0;
266         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
267 
268         /* character is in 'v0' */
269         return ret_stuff.v0;
270 }
271 
272 /*
273  * Sends the given character to the console.
274  */
275 static inline u64
276 ia64_sn_console_putc(char ch)
277 {
278         struct ia64_sal_retval ret_stuff;
279 
280         ret_stuff.status = 0;
281         ret_stuff.v0 = 0;
282         ret_stuff.v1 = 0;
283         ret_stuff.v2 = 0;
284         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (u64)ch, 0, 0, 0, 0, 0, 0);
285 
286         return ret_stuff.status;
287 }
288 
289 /*
290  * Sends the given buffer to the console.
291  */
292 static inline u64
293 ia64_sn_console_putb(const char *buf, int len)
294 {
295         struct ia64_sal_retval ret_stuff;
296 
297         ret_stuff.status = 0;
298         ret_stuff.v0 = 0; 
299         ret_stuff.v1 = 0;
300         ret_stuff.v2 = 0;
301         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (u64)buf, (u64)len, 0, 0, 0, 0, 0);
302 
303         if ( ret_stuff.status == 0 ) {
304                 return ret_stuff.v0;
305         }
306         return (u64)0;
307 }
308 
309 /*
310  * Print a platform error record
311  */
312 static inline u64
313 ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
314 {
315         struct ia64_sal_retval ret_stuff;
316 
317         ret_stuff.status = 0;
318         ret_stuff.v0 = 0;
319         ret_stuff.v1 = 0;
320         ret_stuff.v2 = 0;
321         SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (u64)hook, (u64)rec, 0, 0, 0, 0, 0);
322 
323         return ret_stuff.status;
324 }
325 
326 /*
327  * Check for Platform errors
328  */
329 static inline u64
330 ia64_sn_plat_cpei_handler(void)
331 {
332         struct ia64_sal_retval ret_stuff;
333 
334         ret_stuff.status = 0;
335         ret_stuff.v0 = 0;
336         ret_stuff.v1 = 0;
337         ret_stuff.v2 = 0;
338         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
339 
340         return ret_stuff.status;
341 }
342 
343 /*
344  * Set Error Handling Features  (Obsolete)
345  */
346 static inline u64
347 ia64_sn_plat_set_error_handling_features(void)
348 {
349         struct ia64_sal_retval ret_stuff;
350 
351         ret_stuff.status = 0;
352         ret_stuff.v0 = 0;
353         ret_stuff.v1 = 0;
354         ret_stuff.v2 = 0;
355         SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
356                 SAL_ERR_FEAT_LOG_SBES,
357                 0, 0, 0, 0, 0, 0);
358 
359         return ret_stuff.status;
360 }
361 
362 /*
363  * Checks for console input.
364  */
365 static inline u64
366 ia64_sn_console_check(int *result)
367 {
368         struct ia64_sal_retval ret_stuff;
369 
370         ret_stuff.status = 0;
371         ret_stuff.v0 = 0;
372         ret_stuff.v1 = 0;
373         ret_stuff.v2 = 0;
374         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
375 
376         /* result is in 'v0' */
377         *result = (int)ret_stuff.v0;
378 
379         return ret_stuff.status;
380 }
381 
382 /*
383  * Checks console interrupt status
384  */
385 static inline u64
386 ia64_sn_console_intr_status(void)
387 {
388         struct ia64_sal_retval ret_stuff;
389 
390         ret_stuff.status = 0;
391         ret_stuff.v0 = 0;
392         ret_stuff.v1 = 0;
393         ret_stuff.v2 = 0;
394         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR, 
395                  0, SAL_CONSOLE_INTR_STATUS,
396                  0, 0, 0, 0, 0);
397 
398         if (ret_stuff.status == 0) {
399             return ret_stuff.v0;
400         }
401         
402         return 0;
403 }
404 
405 /*
406  * Enable an interrupt on the SAL console device.
407  */
408 static inline void
409 ia64_sn_console_intr_enable(u64 intr)
410 {
411         struct ia64_sal_retval ret_stuff;
412 
413         ret_stuff.status = 0;
414         ret_stuff.v0 = 0;
415         ret_stuff.v1 = 0;
416         ret_stuff.v2 = 0;
417         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR, 
418                  intr, SAL_CONSOLE_INTR_ON,
419                  0, 0, 0, 0, 0);
420 }
421 
422 /*
423  * Disable an interrupt on the SAL console device.
424  */
425 static inline void
426 ia64_sn_console_intr_disable(u64 intr)
427 {
428         struct ia64_sal_retval ret_stuff;
429 
430         ret_stuff.status = 0;
431         ret_stuff.v0 = 0;
432         ret_stuff.v1 = 0;
433         ret_stuff.v2 = 0;
434         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR, 
435                  intr, SAL_CONSOLE_INTR_OFF,
436                  0, 0, 0, 0, 0);
437 }
438 
439 /*
440  * Sends a character buffer to the console asynchronously.
441  */
442 static inline u64
443 ia64_sn_console_xmit_chars(char *buf, int len)
444 {
445         struct ia64_sal_retval ret_stuff;
446 
447         ret_stuff.status = 0;
448         ret_stuff.v0 = 0;
449         ret_stuff.v1 = 0;
450         ret_stuff.v2 = 0;
451         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
452                  (u64)buf, (u64)len,
453                  0, 0, 0, 0, 0);
454 
455         if (ret_stuff.status == 0) {
456             return ret_stuff.v0;
457         }
458 
459         return 0;
460 }
461 
462 /*
463  * Returns the iobrick module Id
464  */
465 static inline u64
466 ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
467 {
468         struct ia64_sal_retval ret_stuff;
469 
470         ret_stuff.status = 0;
471         ret_stuff.v0 = 0;
472         ret_stuff.v1 = 0;
473         ret_stuff.v2 = 0;
474         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
475 
476         /* result is in 'v0' */
477         *result = (int)ret_stuff.v0;
478 
479         return ret_stuff.status;
480 }
481 
482 /**
483  * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
484  *
485  * SN_SAL_POD_MODE actually takes an argument, but it's always
486  * 0 when we call it from the kernel, so we don't have to expose
487  * it to the caller.
488  */
489 static inline u64
490 ia64_sn_pod_mode(void)
491 {
492         struct ia64_sal_retval isrv;
493         SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
494         if (isrv.status)
495                 return 0;
496         return isrv.v0;
497 }
498 
499 /**
500  * ia64_sn_probe_mem - read from memory safely
501  * @addr: address to probe
502  * @size: number bytes to read (1,2,4,8)
503  * @data_ptr: address to store value read by probe (-1 returned if probe fails)
504  *
505  * Call into the SAL to do a memory read.  If the read generates a machine
506  * check, this routine will recover gracefully and return -1 to the caller.
507  * @addr is usually a kernel virtual address in uncached space (i.e. the
508  * address starts with 0xc), but if called in physical mode, @addr should
509  * be a physical address.
510  *
511  * Return values:
512  *  0 - probe successful
513  *  1 - probe failed (generated MCA)
514  *  2 - Bad arg
515  * <0 - PAL error
516  */
517 static inline u64
518 ia64_sn_probe_mem(long addr, long size, void *data_ptr)
519 {
520         struct ia64_sal_retval isrv;
521 
522         SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
523 
524         if (data_ptr) {
525                 switch (size) {
526                 case 1:
527                         *((u8*)data_ptr) = (u8)isrv.v0;
528                         break;
529                 case 2:
530                         *((u16*)data_ptr) = (u16)isrv.v0;
531                         break;
532                 case 4:
533                         *((u32*)data_ptr) = (u32)isrv.v0;
534                         break;
535                 case 8:
536                         *((u64*)data_ptr) = (u64)isrv.v0;
537                         break;
538                 default:
539                         isrv.status = 2;
540                 }
541         }
542         return isrv.status;
543 }
544 
545 /*
546  * Retrieve the system serial number as an ASCII string.
547  */
548 static inline u64
549 ia64_sn_sys_serial_get(char *buf)
550 {
551         struct ia64_sal_retval ret_stuff;
552         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
553         return ret_stuff.status;
554 }
555 
556 extern char sn_system_serial_number_string[];
557 extern u64 sn_partition_serial_number;
558 
559 static inline char *
560 sn_system_serial_number(void) {
561         if (sn_system_serial_number_string[0]) {
562                 return(sn_system_serial_number_string);
563         } else {
564                 ia64_sn_sys_serial_get(sn_system_serial_number_string);
565                 return(sn_system_serial_number_string);
566         }
567 }
568         
569 
570 /*
571  * Returns a unique id number for this system and partition (suitable for
572  * use with license managers), based in part on the system serial number.
573  */
574 static inline u64
575 ia64_sn_partition_serial_get(void)
576 {
577         struct ia64_sal_retval ret_stuff;
578         ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0,
579                                    0, 0, 0, 0, 0, 0);
580         if (ret_stuff.status != 0)
581             return 0;
582         return ret_stuff.v0;
583 }
584 
585 static inline u64
586 sn_partition_serial_number_val(void) {
587         if (unlikely(sn_partition_serial_number == 0)) {
588                 sn_partition_serial_number = ia64_sn_partition_serial_get();
589         }
590         return sn_partition_serial_number;
591 }
592 
593 /*
594  * Returns the partition id of the nasid passed in as an argument,
595  * or INVALID_PARTID if the partition id cannot be retrieved.
596  */
597 static inline partid_t
598 ia64_sn_sysctl_partition_get(nasid_t nasid)
599 {
600         struct ia64_sal_retval ret_stuff;
601         SAL_CALL(ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
602                 0, 0, 0, 0, 0, 0);
603         if (ret_stuff.status != 0)
604             return -1;
605         return ((partid_t)ret_stuff.v0);
606 }
607 
608 /*
609  * Returns the physical address of the partition's reserved page through
610  * an iterative number of calls.
611  *
612  * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
613  * set to the nasid of the partition whose reserved page's address is
614  * being sought.
615  * On subsequent calls, pass the values, that were passed back on the
616  * previous call.
617  *
618  * While the return status equals SALRET_MORE_PASSES, keep calling
619  * this function after first copying 'len' bytes starting at 'addr'
620  * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
621  * be the physical address of the partition's reserved page. If the
622  * return status equals neither of these, an error as occurred.
623  */
624 static inline s64
625 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
626 {
627         struct ia64_sal_retval rv;
628         ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
629                                    *addr, buf, *len, 0, 0, 0);
630         *cookie = rv.v0;
631         *addr = rv.v1;
632         *len = rv.v2;
633         return rv.status;
634 }
635 
636 /*
637  * Register or unregister a physical address range being referenced across
638  * a partition boundary for which certain SAL errors should be scanned for,
639  * cleaned up and ignored.  This is of value for kernel partitioning code only.
640  * Values for the operation argument:
641  *      1 = register this address range with SAL
642  *      0 = unregister this address range with SAL
643  * 
644  * SAL maintains a reference count on an address range in case it is registered
645  * multiple times.
646  * 
647  * On success, returns the reference count of the address range after the SAL
648  * call has performed the current registration/unregistration.  Returns a
649  * negative value if an error occurred.
650  */
651 static inline int
652 sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
653 {
654         struct ia64_sal_retval ret_stuff;
655         ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
656                          (u64)operation, 0, 0, 0, 0);
657         return ret_stuff.status;
658 }
659 
660 /*
661  * Register or unregister an instruction range for which SAL errors should
662  * be ignored.  If an error occurs while in the registered range, SAL jumps
663  * to return_addr after ignoring the error.  Values for the operation argument:
664  *      1 = register this instruction range with SAL
665  *      0 = unregister this instruction range with SAL
666  *
667  * Returns 0 on success, or a negative value if an error occurred.
668  */
669 static inline int
670 sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
671                          int virtual, int operation)
672 {
673         struct ia64_sal_retval ret_stuff;
674         u64 call;
675         if (virtual) {
676                 call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
677         } else {
678                 call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
679         }
680         ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
681                          (u64)1, 0, 0, 0);
682         return ret_stuff.status;
683 }
684 
685 /*
686  * Register or unregister a function to handle a PMI received by a CPU.
687  * Before calling the registered handler, SAL sets r1 to the value that
688  * was passed in as the global_pointer.
689  *
690  * If the handler pointer is NULL, then the currently registered handler
691  * will be unregistered.
692  *
693  * Returns 0 on success, or a negative value if an error occurred.
694  */
695 static inline int
696 sn_register_pmi_handler(u64 handler, u64 global_pointer)
697 {
698         struct ia64_sal_retval ret_stuff;
699         ia64_sal_oemcall(&ret_stuff, SN_SAL_REGISTER_PMI_HANDLER, handler,
700                          global_pointer, 0, 0, 0, 0, 0);
701         return ret_stuff.status;
702 }
703 
704 /*
705  * Change or query the coherence domain for this partition. Each cpu-based
706  * nasid is represented by a bit in an array of 64-bit words:
707  *      0 = not in this partition's coherency domain
708  *      1 = in this partition's coherency domain
709  *
710  * It is not possible for the local system's nasids to be removed from
711  * the coherency domain.  Purpose of the domain arguments:
712  *      new_domain = set the coherence domain to the given nasids
713  *      old_domain = return the current coherence domain
714  *
715  * Returns 0 on success, or a negative value if an error occurred.
716  */
717 static inline int
718 sn_change_coherence(u64 *new_domain, u64 *old_domain)
719 {
720         struct ia64_sal_retval ret_stuff;
721         ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
722                                 (u64)old_domain, 0, 0, 0, 0, 0);
723         return ret_stuff.status;
724 }
725 
726 /*
727  * Change memory access protections for a physical address range.
728  * nasid_array is not used on Altix, but may be in future architectures.
729  * Available memory protection access classes are defined after the function.
730  */
731 static inline int
732 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
733 {
734         struct ia64_sal_retval ret_stuff;
735 
736         ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
737                                 (u64)nasid_array, perms, 0, 0, 0);
738         return ret_stuff.status;
739 }
740 #define SN_MEMPROT_ACCESS_CLASS_0               0x14a080
741 #define SN_MEMPROT_ACCESS_CLASS_1               0x2520c2
742 #define SN_MEMPROT_ACCESS_CLASS_2               0x14a1ca
743 #define SN_MEMPROT_ACCESS_CLASS_3               0x14a290
744 #define SN_MEMPROT_ACCESS_CLASS_6               0x084080
745 #define SN_MEMPROT_ACCESS_CLASS_7               0x021080
746 
747 /*
748  * Turns off system power.
749  */
750 static inline void
751 ia64_sn_power_down(void)
752 {
753         struct ia64_sal_retval ret_stuff;
754         SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
755         while(1)
756                 cpu_relax();
757         /* never returns */
758 }
759 
760 /**
761  * ia64_sn_fru_capture - tell the system controller to capture hw state
762  *
763  * This routine will call the SAL which will tell the system controller(s)
764  * to capture hw mmr information from each SHub in the system.
765  */
766 static inline u64
767 ia64_sn_fru_capture(void)
768 {
769         struct ia64_sal_retval isrv;
770         SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
771         if (isrv.status)
772                 return 0;
773         return isrv.v0;
774 }
775 
776 /*
777  * Performs an operation on a PCI bus or slot -- power up, power down
778  * or reset.
779  */
780 static inline u64
781 ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type, 
782                               u64 bus, char slot, 
783                               u64 action)
784 {
785         struct ia64_sal_retval rv = {0, 0, 0, 0};
786 
787         SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
788                  bus, (u64) slot, 0, 0);
789         if (rv.status)
790                 return rv.v0;
791         return 0;
792 }
793 
794 
795 /*
796  * Open a subchannel for sending arbitrary data to the system
797  * controller network via the system controller device associated with
798  * 'nasid'.  Return the subchannel number or a negative error code.
799  */
800 static inline int
801 ia64_sn_irtr_open(nasid_t nasid)
802 {
803         struct ia64_sal_retval rv;
804         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
805                            0, 0, 0, 0, 0);
806         return (int) rv.v0;
807 }
808 
809 /*
810  * Close system controller subchannel 'subch' previously opened on 'nasid'.
811  */
812 static inline int
813 ia64_sn_irtr_close(nasid_t nasid, int subch)
814 {
815         struct ia64_sal_retval rv;
816         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
817                            (u64) nasid, (u64) subch, 0, 0, 0, 0);
818         return (int) rv.status;
819 }
820 
821 /*
822  * Read data from system controller associated with 'nasid' on
823  * subchannel 'subch'.  The buffer to be filled is pointed to by
824  * 'buf', and its capacity is in the integer pointed to by 'len'.  The
825  * referent of 'len' is set to the number of bytes read by the SAL
826  * call.  The return value is either SALRET_OK (for bytes read) or
827  * SALRET_ERROR (for error or "no data available").
828  */
829 static inline int
830 ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
831 {
832         struct ia64_sal_retval rv;
833         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
834                            (u64) nasid, (u64) subch, (u64) buf, (u64) len,
835                            0, 0);
836         return (int) rv.status;
837 }
838 
839 /*
840  * Write data to the system controller network via the system
841  * controller associated with 'nasid' on suchannel 'subch'.  The
842  * buffer to be written out is pointed to by 'buf', and 'len' is the
843  * number of bytes to be written.  The return value is either the
844  * number of bytes written (which could be zero) or a negative error
845  * code.
846  */
847 static inline int
848 ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
849 {
850         struct ia64_sal_retval rv;
851         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
852                            (u64) nasid, (u64) subch, (u64) buf, (u64) len,
853                            0, 0);
854         return (int) rv.v0;
855 }
856 
857 /*
858  * Check whether any interrupts are pending for the system controller
859  * associated with 'nasid' and its subchannel 'subch'.  The return
860  * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
861  * SAL_IROUTER_INTR_RECV).
862  */
863 static inline int
864 ia64_sn_irtr_intr(nasid_t nasid, int subch)
865 {
866         struct ia64_sal_retval rv;
867         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
868                            (u64) nasid, (u64) subch, 0, 0, 0, 0);
869         return (int) rv.v0;
870 }
871 
872 /*
873  * Enable the interrupt indicated by the intr parameter (either
874  * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
875  */
876 static inline int
877 ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
878 {
879         struct ia64_sal_retval rv;
880         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
881                            (u64) nasid, (u64) subch, intr, 0, 0, 0);
882         return (int) rv.v0;
883 }
884 
885 /*
886  * Disable the interrupt indicated by the intr parameter (either
887  * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
888  */
889 static inline int
890 ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
891 {
892         struct ia64_sal_retval rv;
893         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
894                            (u64) nasid, (u64) subch, intr, 0, 0, 0);
895         return (int) rv.v0;
896 }
897 
898 /*
899  * Set up a node as the point of contact for system controller
900  * environmental event delivery.
901  */
902 static inline int
903 ia64_sn_sysctl_event_init(nasid_t nasid)
904 {
905         struct ia64_sal_retval rv;
906         SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
907                            0, 0, 0, 0, 0, 0);
908         return (int) rv.v0;
909 }
910 
911 /*
912  * Ask the system controller on the specified nasid to reset
913  * the CX corelet clock.  Only valid on TIO nodes.
914  */
915 static inline int
916 ia64_sn_sysctl_tio_clock_reset(nasid_t nasid)
917 {
918         struct ia64_sal_retval rv;
919         SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_TIO_JLCK_RST,
920                         nasid, 0, 0, 0, 0, 0);
921         if (rv.status != 0)
922                 return (int)rv.status;
923         if (rv.v0 != 0)
924                 return (int)rv.v0;
925 
926         return 0;
927 }
928 
929 /*
930  * Get the associated ioboard type for a given nasid.
931  */
932 static inline long
933 ia64_sn_sysctl_ioboard_get(nasid_t nasid, u16 *ioboard)
934 {
935         struct ia64_sal_retval isrv;
936         SAL_CALL_REENTRANT(isrv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_IOBOARD,
937                            nasid, 0, 0, 0, 0, 0);
938         if (isrv.v0 != 0) {
939                 *ioboard = isrv.v0;
940                 return isrv.status;
941         }
942         if (isrv.v1 != 0) {
943                 *ioboard = isrv.v1;
944                 return isrv.status;
945         }
946 
947         return isrv.status;
948 }
949 
950 /**
951  * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
952  * @nasid: NASID of node to read
953  * @index: FIT entry index to be retrieved (0..n)
954  * @fitentry: 16 byte buffer where FIT entry will be stored.
955  * @banbuf: optional buffer for retrieving banner
956  * @banlen: length of banner buffer
957  *
958  * Access to the physical PROM chips needs to be serialized since reads and
959  * writes can't occur at the same time, so we need to call into the SAL when
960  * we want to look at the FIT entries on the chips.
961  *
962  * Returns:
963  *      %SALRET_OK if ok
964  *      %SALRET_INVALID_ARG if index too big
965  *      %SALRET_NOT_IMPLEMENTED if running on older PROM
966  *      ??? if nasid invalid OR banner buffer not large enough
967  */
968 static inline int
969 ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
970                       u64 banlen)
971 {
972         struct ia64_sal_retval rv;
973         SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
974                         banbuf, banlen, 0, 0);
975         return (int) rv.status;
976 }
977 
978 /*
979  * Initialize the SAL components of the system controller
980  * communication driver; specifically pass in a sizable buffer that
981  * can be used for allocation of subchannel queues as new subchannels
982  * are opened.  "buf" points to the buffer, and "len" specifies its
983  * length.
984  */
985 static inline int
986 ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
987 {
988         struct ia64_sal_retval rv;
989         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
990                            (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
991         return (int) rv.status;
992 }
993 
994 /*
995  * Returns the nasid, subnode & slice corresponding to a SAPIC ID
996  *
997  *  In:
998  *      arg0 - SN_SAL_GET_SAPIC_INFO
999  *      arg1 - sapicid (lid >> 16) 
1000  *  Out:
1001  *      v0 - nasid
1002  *      v1 - subnode
1003  *      v2 - slice
1004  */
1005 static inline u64
1006 ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
1007 {
1008         struct ia64_sal_retval ret_stuff;
1009 
1010         ret_stuff.status = 0;
1011         ret_stuff.v0 = 0;
1012         ret_stuff.v1 = 0;
1013         ret_stuff.v2 = 0;
1014         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
1015 
1016 /***** BEGIN HACK - temp til old proms no longer supported ********/
1017         if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
1018                 if (nasid) *nasid = sapicid & 0xfff;
1019                 if (subnode) *subnode = (sapicid >> 13) & 1;
1020                 if (slice) *slice = (sapicid >> 12) & 3;
1021                 return 0;
1022         }
1023 /***** END HACK *******/
1024 
1025         if (ret_stuff.status < 0)
1026                 return ret_stuff.status;
1027 
1028         if (nasid) *nasid = (int) ret_stuff.v0;
1029         if (subnode) *subnode = (int) ret_stuff.v1;
1030         if (slice) *slice = (int) ret_stuff.v2;
1031         return 0;
1032 }
1033  
1034 /*
1035  * Returns information about the HUB/SHUB.
1036  *  In:
1037  *      arg0 - SN_SAL_GET_SN_INFO
1038  *      arg1 - 0 (other values reserved for future use)
1039  *  Out:
1040  *      v0 
1041  *              [7:0]   - shub type (0=shub1, 1=shub2)
1042  *              [15:8]  - Log2 max number of nodes in entire system (includes
1043  *                        C-bricks, I-bricks, etc)
1044  *              [23:16] - Log2 of nodes per sharing domain                       
1045  *              [31:24] - partition ID
1046  *              [39:32] - coherency_id
1047  *              [47:40] - regionsize
1048  *      v1 
1049  *              [15:0]  - nasid mask (ex., 0x7ff for 11 bit nasid)
1050  *              [23:15] - bit position of low nasid bit
1051  */
1052 static inline u64
1053 ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift, 
1054                 u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
1055 {
1056         struct ia64_sal_retval ret_stuff;
1057 
1058         ret_stuff.status = 0;
1059         ret_stuff.v0 = 0;
1060         ret_stuff.v1 = 0;
1061         ret_stuff.v2 = 0;
1062         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
1063 
1064 /***** BEGIN HACK - temp til old proms no longer supported ********/
1065         if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
1066                 int nasid = get_sapicid() & 0xfff;
1067 #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
1068 #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
1069                 if (shubtype) *shubtype = 0;
1070                 if (nasid_bitmask) *nasid_bitmask = 0x7ff;
1071                 if (nasid_shift) *nasid_shift = 38;
1072                 if (systemsize) *systemsize = 10;
1073                 if (sharing_domain_size) *sharing_domain_size = 8;
1074                 if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
1075                 if (coher) *coher = nasid >> 9;
1076                 if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
1077                         SH_SHUB_ID_NODES_PER_BIT_SHFT;
1078                 return 0;
1079         }
1080 /***** END HACK *******/
1081 
1082         if (ret_stuff.status < 0)
1083                 return ret_stuff.status;
1084 
1085         if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
1086         if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
1087         if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
1088         if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
1089         if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
1090         if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
1091         if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
1092         if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
1093         return 0;
1094 }
1095  
1096 /*
1097  * This is the access point to the Altix PROM hardware performance
1098  * and status monitoring interface. For info on using this, see
1099  * arch/ia64/include/asm/sn/sn2/sn_hwperf.h
1100  */
1101 static inline int
1102 ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
1103                   u64 a3, u64 a4, int *v0)
1104 {
1105         struct ia64_sal_retval rv;
1106         SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
1107                 opcode, a0, a1, a2, a3, a4);
1108         if (v0)
1109                 *v0 = (int) rv.v0;
1110         return (int) rv.status;
1111 }
1112 
1113 static inline int
1114 ia64_sn_ioif_get_pci_topology(u64 buf, u64 len)
1115 {
1116         struct ia64_sal_retval rv;
1117         SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY, buf, len, 0, 0, 0, 0, 0);
1118         return (int) rv.status;
1119 }
1120 
1121 /*
1122  * BTE error recovery is implemented in SAL
1123  */
1124 static inline int
1125 ia64_sn_bte_recovery(nasid_t nasid)
1126 {
1127         struct ia64_sal_retval rv;
1128 
1129         rv.status = 0;
1130         SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, (u64)nasid, 0, 0, 0, 0, 0, 0);
1131         if (rv.status == SALRET_NOT_IMPLEMENTED)
1132                 return 0;
1133         return (int) rv.status;
1134 }
1135 
1136 static inline int
1137 ia64_sn_is_fake_prom(void)
1138 {
1139         struct ia64_sal_retval rv;
1140         SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
1141         return (rv.status == 0);
1142 }
1143 
1144 static inline int
1145 ia64_sn_get_prom_feature_set(int set, unsigned long *feature_set)
1146 {
1147         struct ia64_sal_retval rv;
1148 
1149         SAL_CALL_NOLOCK(rv, SN_SAL_GET_PROM_FEATURE_SET, set, 0, 0, 0, 0, 0, 0);
1150         if (rv.status != 0)
1151                 return rv.status;
1152         *feature_set = rv.v0;
1153         return 0;
1154 }
1155 
1156 static inline int
1157 ia64_sn_set_os_feature(int feature)
1158 {
1159         struct ia64_sal_retval rv;
1160 
1161         SAL_CALL_NOLOCK(rv, SN_SAL_SET_OS_FEATURE_SET, feature, 0, 0, 0, 0, 0, 0);
1162         return rv.status;
1163 }
1164 
1165 static inline int
1166 sn_inject_error(u64 paddr, u64 *data, u64 *ecc)
1167 {
1168         struct ia64_sal_retval ret_stuff;
1169 
1170         ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_INJECT_ERROR, paddr, (u64)data,
1171                                 (u64)ecc, 0, 0, 0, 0);
1172         return ret_stuff.status;
1173 }
1174 
1175 static inline int
1176 ia64_sn_set_cpu_number(int cpu)
1177 {
1178         struct ia64_sal_retval rv;
1179 
1180         SAL_CALL_NOLOCK(rv, SN_SAL_SET_CPU_NUMBER, cpu, 0, 0, 0, 0, 0, 0);
1181         return rv.status;
1182 }
1183 static inline int
1184 ia64_sn_kernel_launch_event(void)
1185 {
1186         struct ia64_sal_retval rv;
1187         SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
1188         return rv.status;
1189 }
1190 
1191 union sn_watchlist_u {
1192         u64     val;
1193         struct {
1194                 u64     blade   : 16,
1195                         size    : 32,
1196                         filler  : 16;
1197         };
1198 };
1199 
1200 static inline int
1201 sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
1202                                 unsigned long *intr_mmr_offset)
1203 {
1204         struct ia64_sal_retval rv;
1205         unsigned long addr;
1206         union sn_watchlist_u size_blade;
1207         int watchlist;
1208 
1209         addr = (unsigned long)mq;
1210         size_blade.size = mq_size;
1211         size_blade.blade = blade;
1212 
1213         /*
1214          * bios returns watchlist number or negative error number.
1215          */
1216         ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
1217                         size_blade.val, (u64)intr_mmr_offset,
1218                         (u64)&watchlist, 0, 0, 0);
1219         if (rv.status < 0)
1220                 return rv.status;
1221 
1222         return watchlist;
1223 }
1224 
1225 static inline int
1226 sn_mq_watchlist_free(int blade, int watchlist_num)
1227 {
1228         struct ia64_sal_retval rv;
1229         ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
1230                         watchlist_num, 0, 0, 0, 0, 0);
1231         return rv.status;
1232 }
1233 #endif /* _ASM_IA64_SN_SN_SAL_H */
1234 

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