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[thirdparty/kernel/linux.git] / arch / ia64 / include / asm / pal.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_PAL_H
3 #define _ASM_IA64_PAL_H
4
5 /*
6 * Processor Abstraction Layer definitions.
7 *
8 * This is based on Intel IA-64 Architecture Software Developer's Manual rev 1.0
9 * chapter 11 IA-64 Processor Abstraction Layer
10 *
11 * Copyright (C) 1998-2001 Hewlett-Packard Co
12 * David Mosberger-Tang <davidm@hpl.hp.com>
13 * Stephane Eranian <eranian@hpl.hp.com>
14 * Copyright (C) 1999 VA Linux Systems
15 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
16 * Copyright (C) 1999 Srinivasa Prasad Thirumalachar <sprasad@sprasad.engr.sgi.com>
17 * Copyright (C) 2008 Silicon Graphics, Inc. (SGI)
18 *
19 * 99/10/01 davidm Make sure we pass zero for reserved parameters.
20 * 00/03/07 davidm Updated pal_cache_flush() to be in sync with PAL v2.6.
21 * 00/03/23 cfleck Modified processor min-state save area to match updated PAL & SAL info
22 * 00/05/24 eranian Updated to latest PAL spec, fix structures bugs, added
23 * 00/05/25 eranian Support for stack calls, and static physical calls
24 * 00/06/18 eranian Support for stacked physical calls
25 * 06/10/26 rja Support for Intel Itanium Architecture Software Developer's
26 * Manual Rev 2.2 (Jan 2006)
27 */
28
29 /*
30 * Note that some of these calls use a static-register only calling
31 * convention which has nothing to do with the regular calling
32 * convention.
33 */
34 #define PAL_CACHE_FLUSH 1 /* flush i/d cache */
35 #define PAL_CACHE_INFO 2 /* get detailed i/d cache info */
36 #define PAL_CACHE_INIT 3 /* initialize i/d cache */
37 #define PAL_CACHE_SUMMARY 4 /* get summary of cache hierarchy */
38 #define PAL_MEM_ATTRIB 5 /* list supported memory attributes */
39 #define PAL_PTCE_INFO 6 /* purge TLB info */
40 #define PAL_VM_INFO 7 /* return supported virtual memory features */
41 #define PAL_VM_SUMMARY 8 /* return summary on supported vm features */
42 #define PAL_BUS_GET_FEATURES 9 /* return processor bus interface features settings */
43 #define PAL_BUS_SET_FEATURES 10 /* set processor bus features */
44 #define PAL_DEBUG_INFO 11 /* get number of debug registers */
45 #define PAL_FIXED_ADDR 12 /* get fixed component of processors's directed address */
46 #define PAL_FREQ_BASE 13 /* base frequency of the platform */
47 #define PAL_FREQ_RATIOS 14 /* ratio of processor, bus and ITC frequency */
48 #define PAL_PERF_MON_INFO 15 /* return performance monitor info */
49 #define PAL_PLATFORM_ADDR 16 /* set processor interrupt block and IO port space addr */
50 #define PAL_PROC_GET_FEATURES 17 /* get configurable processor features & settings */
51 #define PAL_PROC_SET_FEATURES 18 /* enable/disable configurable processor features */
52 #define PAL_RSE_INFO 19 /* return rse information */
53 #define PAL_VERSION 20 /* return version of PAL code */
54 #define PAL_MC_CLEAR_LOG 21 /* clear all processor log info */
55 #define PAL_MC_DRAIN 22 /* drain operations which could result in an MCA */
56 #define PAL_MC_EXPECTED 23 /* set/reset expected MCA indicator */
57 #define PAL_MC_DYNAMIC_STATE 24 /* get processor dynamic state */
58 #define PAL_MC_ERROR_INFO 25 /* get processor MCA info and static state */
59 #define PAL_MC_RESUME 26 /* Return to interrupted process */
60 #define PAL_MC_REGISTER_MEM 27 /* Register memory for PAL to use during MCAs and inits */
61 #define PAL_HALT 28 /* enter the low power HALT state */
62 #define PAL_HALT_LIGHT 29 /* enter the low power light halt state*/
63 #define PAL_COPY_INFO 30 /* returns info needed to relocate PAL */
64 #define PAL_CACHE_LINE_INIT 31 /* init tags & data of cache line */
65 #define PAL_PMI_ENTRYPOINT 32 /* register PMI memory entry points with the processor */
66 #define PAL_ENTER_IA_32_ENV 33 /* enter IA-32 system environment */
67 #define PAL_VM_PAGE_SIZE 34 /* return vm TC and page walker page sizes */
68
69 #define PAL_MEM_FOR_TEST 37 /* get amount of memory needed for late processor test */
70 #define PAL_CACHE_PROT_INFO 38 /* get i/d cache protection info */
71 #define PAL_REGISTER_INFO 39 /* return AR and CR register information*/
72 #define PAL_SHUTDOWN 40 /* enter processor shutdown state */
73 #define PAL_PREFETCH_VISIBILITY 41 /* Make Processor Prefetches Visible */
74 #define PAL_LOGICAL_TO_PHYSICAL 42 /* returns information on logical to physical processor mapping */
75 #define PAL_CACHE_SHARED_INFO 43 /* returns information on caches shared by logical processor */
76 #define PAL_GET_HW_POLICY 48 /* Get current hardware resource sharing policy */
77 #define PAL_SET_HW_POLICY 49 /* Set current hardware resource sharing policy */
78 #define PAL_VP_INFO 50 /* Information about virtual processor features */
79 #define PAL_MC_HW_TRACKING 51 /* Hardware tracking status */
80
81 #define PAL_COPY_PAL 256 /* relocate PAL procedures and PAL PMI */
82 #define PAL_HALT_INFO 257 /* return the low power capabilities of processor */
83 #define PAL_TEST_PROC 258 /* perform late processor self-test */
84 #define PAL_CACHE_READ 259 /* read tag & data of cacheline for diagnostic testing */
85 #define PAL_CACHE_WRITE 260 /* write tag & data of cacheline for diagnostic testing */
86 #define PAL_VM_TR_READ 261 /* read contents of translation register */
87 #define PAL_GET_PSTATE 262 /* get the current P-state */
88 #define PAL_SET_PSTATE 263 /* set the P-state */
89 #define PAL_BRAND_INFO 274 /* Processor branding information */
90
91 #define PAL_GET_PSTATE_TYPE_LASTSET 0
92 #define PAL_GET_PSTATE_TYPE_AVGANDRESET 1
93 #define PAL_GET_PSTATE_TYPE_AVGNORESET 2
94 #define PAL_GET_PSTATE_TYPE_INSTANT 3
95
96 #define PAL_MC_ERROR_INJECT 276 /* Injects processor error or returns injection capabilities */
97
98 #ifndef __ASSEMBLY__
99
100 #include <linux/types.h>
101 #include <asm/fpu.h>
102
103 /*
104 * Data types needed to pass information into PAL procedures and
105 * interpret information returned by them.
106 */
107
108 /* Return status from the PAL procedure */
109 typedef s64 pal_status_t;
110
111 #define PAL_STATUS_SUCCESS 0 /* No error */
112 #define PAL_STATUS_UNIMPLEMENTED (-1) /* Unimplemented procedure */
113 #define PAL_STATUS_EINVAL (-2) /* Invalid argument */
114 #define PAL_STATUS_ERROR (-3) /* Error */
115 #define PAL_STATUS_CACHE_INIT_FAIL (-4) /* Could not initialize the
116 * specified level and type of
117 * cache without sideeffects
118 * and "restrict" was 1
119 */
120 #define PAL_STATUS_REQUIRES_MEMORY (-9) /* Call requires PAL memory buffer */
121
122 /* Processor cache level in the hierarchy */
123 typedef u64 pal_cache_level_t;
124 #define PAL_CACHE_LEVEL_L0 0 /* L0 */
125 #define PAL_CACHE_LEVEL_L1 1 /* L1 */
126 #define PAL_CACHE_LEVEL_L2 2 /* L2 */
127
128
129 /* Processor cache type at a particular level in the hierarchy */
130
131 typedef u64 pal_cache_type_t;
132 #define PAL_CACHE_TYPE_INSTRUCTION 1 /* Instruction cache */
133 #define PAL_CACHE_TYPE_DATA 2 /* Data or unified cache */
134 #define PAL_CACHE_TYPE_INSTRUCTION_DATA 3 /* Both Data & Instruction */
135
136
137 #define PAL_CACHE_FLUSH_INVALIDATE 1 /* Invalidate clean lines */
138 #define PAL_CACHE_FLUSH_CHK_INTRS 2 /* check for interrupts/mc while flushing */
139
140 /* Processor cache line size in bytes */
141 typedef int pal_cache_line_size_t;
142
143 /* Processor cache line state */
144 typedef u64 pal_cache_line_state_t;
145 #define PAL_CACHE_LINE_STATE_INVALID 0 /* Invalid */
146 #define PAL_CACHE_LINE_STATE_SHARED 1 /* Shared */
147 #define PAL_CACHE_LINE_STATE_EXCLUSIVE 2 /* Exclusive */
148 #define PAL_CACHE_LINE_STATE_MODIFIED 3 /* Modified */
149
150 typedef struct pal_freq_ratio {
151 u32 den, num; /* numerator & denominator */
152 } itc_ratio, proc_ratio;
153
154 typedef union pal_cache_config_info_1_s {
155 struct {
156 u64 u : 1, /* 0 Unified cache ? */
157 at : 2, /* 2-1 Cache mem attr*/
158 reserved : 5, /* 7-3 Reserved */
159 associativity : 8, /* 16-8 Associativity*/
160 line_size : 8, /* 23-17 Line size */
161 stride : 8, /* 31-24 Stride */
162 store_latency : 8, /*39-32 Store latency*/
163 load_latency : 8, /* 47-40 Load latency*/
164 store_hints : 8, /* 55-48 Store hints*/
165 load_hints : 8; /* 63-56 Load hints */
166 } pcci1_bits;
167 u64 pcci1_data;
168 } pal_cache_config_info_1_t;
169
170 typedef union pal_cache_config_info_2_s {
171 struct {
172 u32 cache_size; /*cache size in bytes*/
173
174
175 u32 alias_boundary : 8, /* 39-32 aliased addr
176 * separation for max
177 * performance.
178 */
179 tag_ls_bit : 8, /* 47-40 LSb of addr*/
180 tag_ms_bit : 8, /* 55-48 MSb of addr*/
181 reserved : 8; /* 63-56 Reserved */
182 } pcci2_bits;
183 u64 pcci2_data;
184 } pal_cache_config_info_2_t;
185
186
187 typedef struct pal_cache_config_info_s {
188 pal_status_t pcci_status;
189 pal_cache_config_info_1_t pcci_info_1;
190 pal_cache_config_info_2_t pcci_info_2;
191 u64 pcci_reserved;
192 } pal_cache_config_info_t;
193
194 #define pcci_ld_hints pcci_info_1.pcci1_bits.load_hints
195 #define pcci_st_hints pcci_info_1.pcci1_bits.store_hints
196 #define pcci_ld_latency pcci_info_1.pcci1_bits.load_latency
197 #define pcci_st_latency pcci_info_1.pcci1_bits.store_latency
198 #define pcci_stride pcci_info_1.pcci1_bits.stride
199 #define pcci_line_size pcci_info_1.pcci1_bits.line_size
200 #define pcci_assoc pcci_info_1.pcci1_bits.associativity
201 #define pcci_cache_attr pcci_info_1.pcci1_bits.at
202 #define pcci_unified pcci_info_1.pcci1_bits.u
203 #define pcci_tag_msb pcci_info_2.pcci2_bits.tag_ms_bit
204 #define pcci_tag_lsb pcci_info_2.pcci2_bits.tag_ls_bit
205 #define pcci_alias_boundary pcci_info_2.pcci2_bits.alias_boundary
206 #define pcci_cache_size pcci_info_2.pcci2_bits.cache_size
207
208
209
210 /* Possible values for cache attributes */
211
212 #define PAL_CACHE_ATTR_WT 0 /* Write through cache */
213 #define PAL_CACHE_ATTR_WB 1 /* Write back cache */
214 #define PAL_CACHE_ATTR_WT_OR_WB 2 /* Either write thru or write
215 * back depending on TLB
216 * memory attributes
217 */
218
219
220 /* Possible values for cache hints */
221
222 #define PAL_CACHE_HINT_TEMP_1 0 /* Temporal level 1 */
223 #define PAL_CACHE_HINT_NTEMP_1 1 /* Non-temporal level 1 */
224 #define PAL_CACHE_HINT_NTEMP_ALL 3 /* Non-temporal all levels */
225
226 /* Processor cache protection information */
227 typedef union pal_cache_protection_element_u {
228 u32 pcpi_data;
229 struct {
230 u32 data_bits : 8, /* # data bits covered by
231 * each unit of protection
232 */
233
234 tagprot_lsb : 6, /* Least -do- */
235 tagprot_msb : 6, /* Most Sig. tag address
236 * bit that this
237 * protection covers.
238 */
239 prot_bits : 6, /* # of protection bits */
240 method : 4, /* Protection method */
241 t_d : 2; /* Indicates which part
242 * of the cache this
243 * protection encoding
244 * applies.
245 */
246 } pcp_info;
247 } pal_cache_protection_element_t;
248
249 #define pcpi_cache_prot_part pcp_info.t_d
250 #define pcpi_prot_method pcp_info.method
251 #define pcpi_prot_bits pcp_info.prot_bits
252 #define pcpi_tagprot_msb pcp_info.tagprot_msb
253 #define pcpi_tagprot_lsb pcp_info.tagprot_lsb
254 #define pcpi_data_bits pcp_info.data_bits
255
256 /* Processor cache part encodings */
257 #define PAL_CACHE_PROT_PART_DATA 0 /* Data protection */
258 #define PAL_CACHE_PROT_PART_TAG 1 /* Tag protection */
259 #define PAL_CACHE_PROT_PART_TAG_DATA 2 /* Tag+data protection (tag is
260 * more significant )
261 */
262 #define PAL_CACHE_PROT_PART_DATA_TAG 3 /* Data+tag protection (data is
263 * more significant )
264 */
265 #define PAL_CACHE_PROT_PART_MAX 6
266
267
268 typedef struct pal_cache_protection_info_s {
269 pal_status_t pcpi_status;
270 pal_cache_protection_element_t pcp_info[PAL_CACHE_PROT_PART_MAX];
271 } pal_cache_protection_info_t;
272
273
274 /* Processor cache protection method encodings */
275 #define PAL_CACHE_PROT_METHOD_NONE 0 /* No protection */
276 #define PAL_CACHE_PROT_METHOD_ODD_PARITY 1 /* Odd parity */
277 #define PAL_CACHE_PROT_METHOD_EVEN_PARITY 2 /* Even parity */
278 #define PAL_CACHE_PROT_METHOD_ECC 3 /* ECC protection */
279
280
281 /* Processor cache line identification in the hierarchy */
282 typedef union pal_cache_line_id_u {
283 u64 pclid_data;
284 struct {
285 u64 cache_type : 8, /* 7-0 cache type */
286 level : 8, /* 15-8 level of the
287 * cache in the
288 * hierarchy.
289 */
290 way : 8, /* 23-16 way in the set
291 */
292 part : 8, /* 31-24 part of the
293 * cache
294 */
295 reserved : 32; /* 63-32 is reserved*/
296 } pclid_info_read;
297 struct {
298 u64 cache_type : 8, /* 7-0 cache type */
299 level : 8, /* 15-8 level of the
300 * cache in the
301 * hierarchy.
302 */
303 way : 8, /* 23-16 way in the set
304 */
305 part : 8, /* 31-24 part of the
306 * cache
307 */
308 mesi : 8, /* 39-32 cache line
309 * state
310 */
311 start : 8, /* 47-40 lsb of data to
312 * invert
313 */
314 length : 8, /* 55-48 #bits to
315 * invert
316 */
317 trigger : 8; /* 63-56 Trigger error
318 * by doing a load
319 * after the write
320 */
321
322 } pclid_info_write;
323 } pal_cache_line_id_u_t;
324
325 #define pclid_read_part pclid_info_read.part
326 #define pclid_read_way pclid_info_read.way
327 #define pclid_read_level pclid_info_read.level
328 #define pclid_read_cache_type pclid_info_read.cache_type
329
330 #define pclid_write_trigger pclid_info_write.trigger
331 #define pclid_write_length pclid_info_write.length
332 #define pclid_write_start pclid_info_write.start
333 #define pclid_write_mesi pclid_info_write.mesi
334 #define pclid_write_part pclid_info_write.part
335 #define pclid_write_way pclid_info_write.way
336 #define pclid_write_level pclid_info_write.level
337 #define pclid_write_cache_type pclid_info_write.cache_type
338
339 /* Processor cache line part encodings */
340 #define PAL_CACHE_LINE_ID_PART_DATA 0 /* Data */
341 #define PAL_CACHE_LINE_ID_PART_TAG 1 /* Tag */
342 #define PAL_CACHE_LINE_ID_PART_DATA_PROT 2 /* Data protection */
343 #define PAL_CACHE_LINE_ID_PART_TAG_PROT 3 /* Tag protection */
344 #define PAL_CACHE_LINE_ID_PART_DATA_TAG_PROT 4 /* Data+tag
345 * protection
346 */
347 typedef struct pal_cache_line_info_s {
348 pal_status_t pcli_status; /* Return status of the read cache line
349 * info call.
350 */
351 u64 pcli_data; /* 64-bit data, tag, protection bits .. */
352 u64 pcli_data_len; /* data length in bits */
353 pal_cache_line_state_t pcli_cache_line_state; /* mesi state */
354
355 } pal_cache_line_info_t;
356
357
358 /* Machine Check related crap */
359
360 /* Pending event status bits */
361 typedef u64 pal_mc_pending_events_t;
362
363 #define PAL_MC_PENDING_MCA (1 << 0)
364 #define PAL_MC_PENDING_INIT (1 << 1)
365
366 /* Error information type */
367 typedef u64 pal_mc_info_index_t;
368
369 #define PAL_MC_INFO_PROCESSOR 0 /* Processor */
370 #define PAL_MC_INFO_CACHE_CHECK 1 /* Cache check */
371 #define PAL_MC_INFO_TLB_CHECK 2 /* Tlb check */
372 #define PAL_MC_INFO_BUS_CHECK 3 /* Bus check */
373 #define PAL_MC_INFO_REQ_ADDR 4 /* Requestor address */
374 #define PAL_MC_INFO_RESP_ADDR 5 /* Responder address */
375 #define PAL_MC_INFO_TARGET_ADDR 6 /* Target address */
376 #define PAL_MC_INFO_IMPL_DEP 7 /* Implementation
377 * dependent
378 */
379
380 #define PAL_TLB_CHECK_OP_PURGE 8
381
382 typedef struct pal_process_state_info_s {
383 u64 reserved1 : 2,
384 rz : 1, /* PAL_CHECK processor
385 * rendezvous
386 * successful.
387 */
388
389 ra : 1, /* PAL_CHECK attempted
390 * a rendezvous.
391 */
392 me : 1, /* Distinct multiple
393 * errors occurred
394 */
395
396 mn : 1, /* Min. state save
397 * area has been
398 * registered with PAL
399 */
400
401 sy : 1, /* Storage integrity
402 * synched
403 */
404
405
406 co : 1, /* Continuable */
407 ci : 1, /* MC isolated */
408 us : 1, /* Uncontained storage
409 * damage.
410 */
411
412
413 hd : 1, /* Non-essential hw
414 * lost (no loss of
415 * functionality)
416 * causing the
417 * processor to run in
418 * degraded mode.
419 */
420
421 tl : 1, /* 1 => MC occurred
422 * after an instr was
423 * executed but before
424 * the trap that
425 * resulted from instr
426 * execution was
427 * generated.
428 * (Trap Lost )
429 */
430 mi : 1, /* More information available
431 * call PAL_MC_ERROR_INFO
432 */
433 pi : 1, /* Precise instruction pointer */
434 pm : 1, /* Precise min-state save area */
435
436 dy : 1, /* Processor dynamic
437 * state valid
438 */
439
440
441 in : 1, /* 0 = MC, 1 = INIT */
442 rs : 1, /* RSE valid */
443 cm : 1, /* MC corrected */
444 ex : 1, /* MC is expected */
445 cr : 1, /* Control regs valid*/
446 pc : 1, /* Perf cntrs valid */
447 dr : 1, /* Debug regs valid */
448 tr : 1, /* Translation regs
449 * valid
450 */
451 rr : 1, /* Region regs valid */
452 ar : 1, /* App regs valid */
453 br : 1, /* Branch regs valid */
454 pr : 1, /* Predicate registers
455 * valid
456 */
457
458 fp : 1, /* fp registers valid*/
459 b1 : 1, /* Preserved bank one
460 * general registers
461 * are valid
462 */
463 b0 : 1, /* Preserved bank zero
464 * general registers
465 * are valid
466 */
467 gr : 1, /* General registers
468 * are valid
469 * (excl. banked regs)
470 */
471 dsize : 16, /* size of dynamic
472 * state returned
473 * by the processor
474 */
475
476 se : 1, /* Shared error. MCA in a
477 shared structure */
478 reserved2 : 10,
479 cc : 1, /* Cache check */
480 tc : 1, /* TLB check */
481 bc : 1, /* Bus check */
482 rc : 1, /* Register file check */
483 uc : 1; /* Uarch check */
484
485 } pal_processor_state_info_t;
486
487 typedef struct pal_cache_check_info_s {
488 u64 op : 4, /* Type of cache
489 * operation that
490 * caused the machine
491 * check.
492 */
493 level : 2, /* Cache level */
494 reserved1 : 2,
495 dl : 1, /* Failure in data part
496 * of cache line
497 */
498 tl : 1, /* Failure in tag part
499 * of cache line
500 */
501 dc : 1, /* Failure in dcache */
502 ic : 1, /* Failure in icache */
503 mesi : 3, /* Cache line state */
504 mv : 1, /* mesi valid */
505 way : 5, /* Way in which the
506 * error occurred
507 */
508 wiv : 1, /* Way field valid */
509 reserved2 : 1,
510 dp : 1, /* Data poisoned on MBE */
511 reserved3 : 6,
512 hlth : 2, /* Health indicator */
513
514 index : 20, /* Cache line index */
515 reserved4 : 2,
516
517 is : 1, /* instruction set (1 == ia32) */
518 iv : 1, /* instruction set field valid */
519 pl : 2, /* privilege level */
520 pv : 1, /* privilege level field valid */
521 mcc : 1, /* Machine check corrected */
522 tv : 1, /* Target address
523 * structure is valid
524 */
525 rq : 1, /* Requester identifier
526 * structure is valid
527 */
528 rp : 1, /* Responder identifier
529 * structure is valid
530 */
531 pi : 1; /* Precise instruction pointer
532 * structure is valid
533 */
534 } pal_cache_check_info_t;
535
536 typedef struct pal_tlb_check_info_s {
537
538 u64 tr_slot : 8, /* Slot# of TR where
539 * error occurred
540 */
541 trv : 1, /* tr_slot field is valid */
542 reserved1 : 1,
543 level : 2, /* TLB level where failure occurred */
544 reserved2 : 4,
545 dtr : 1, /* Fail in data TR */
546 itr : 1, /* Fail in inst TR */
547 dtc : 1, /* Fail in data TC */
548 itc : 1, /* Fail in inst. TC */
549 op : 4, /* Cache operation */
550 reserved3 : 6,
551 hlth : 2, /* Health indicator */
552 reserved4 : 22,
553
554 is : 1, /* instruction set (1 == ia32) */
555 iv : 1, /* instruction set field valid */
556 pl : 2, /* privilege level */
557 pv : 1, /* privilege level field valid */
558 mcc : 1, /* Machine check corrected */
559 tv : 1, /* Target address
560 * structure is valid
561 */
562 rq : 1, /* Requester identifier
563 * structure is valid
564 */
565 rp : 1, /* Responder identifier
566 * structure is valid
567 */
568 pi : 1; /* Precise instruction pointer
569 * structure is valid
570 */
571 } pal_tlb_check_info_t;
572
573 typedef struct pal_bus_check_info_s {
574 u64 size : 5, /* Xaction size */
575 ib : 1, /* Internal bus error */
576 eb : 1, /* External bus error */
577 cc : 1, /* Error occurred
578 * during cache-cache
579 * transfer.
580 */
581 type : 8, /* Bus xaction type*/
582 sev : 5, /* Bus error severity*/
583 hier : 2, /* Bus hierarchy level */
584 dp : 1, /* Data poisoned on MBE */
585 bsi : 8, /* Bus error status
586 * info
587 */
588 reserved2 : 22,
589
590 is : 1, /* instruction set (1 == ia32) */
591 iv : 1, /* instruction set field valid */
592 pl : 2, /* privilege level */
593 pv : 1, /* privilege level field valid */
594 mcc : 1, /* Machine check corrected */
595 tv : 1, /* Target address
596 * structure is valid
597 */
598 rq : 1, /* Requester identifier
599 * structure is valid
600 */
601 rp : 1, /* Responder identifier
602 * structure is valid
603 */
604 pi : 1; /* Precise instruction pointer
605 * structure is valid
606 */
607 } pal_bus_check_info_t;
608
609 typedef struct pal_reg_file_check_info_s {
610 u64 id : 4, /* Register file identifier */
611 op : 4, /* Type of register
612 * operation that
613 * caused the machine
614 * check.
615 */
616 reg_num : 7, /* Register number */
617 rnv : 1, /* reg_num valid */
618 reserved2 : 38,
619
620 is : 1, /* instruction set (1 == ia32) */
621 iv : 1, /* instruction set field valid */
622 pl : 2, /* privilege level */
623 pv : 1, /* privilege level field valid */
624 mcc : 1, /* Machine check corrected */
625 reserved3 : 3,
626 pi : 1; /* Precise instruction pointer
627 * structure is valid
628 */
629 } pal_reg_file_check_info_t;
630
631 typedef struct pal_uarch_check_info_s {
632 u64 sid : 5, /* Structure identification */
633 level : 3, /* Level of failure */
634 array_id : 4, /* Array identification */
635 op : 4, /* Type of
636 * operation that
637 * caused the machine
638 * check.
639 */
640 way : 6, /* Way of structure */
641 wv : 1, /* way valid */
642 xv : 1, /* index valid */
643 reserved1 : 6,
644 hlth : 2, /* Health indicator */
645 index : 8, /* Index or set of the uarch
646 * structure that failed.
647 */
648 reserved2 : 24,
649
650 is : 1, /* instruction set (1 == ia32) */
651 iv : 1, /* instruction set field valid */
652 pl : 2, /* privilege level */
653 pv : 1, /* privilege level field valid */
654 mcc : 1, /* Machine check corrected */
655 tv : 1, /* Target address
656 * structure is valid
657 */
658 rq : 1, /* Requester identifier
659 * structure is valid
660 */
661 rp : 1, /* Responder identifier
662 * structure is valid
663 */
664 pi : 1; /* Precise instruction pointer
665 * structure is valid
666 */
667 } pal_uarch_check_info_t;
668
669 typedef union pal_mc_error_info_u {
670 u64 pmei_data;
671 pal_processor_state_info_t pme_processor;
672 pal_cache_check_info_t pme_cache;
673 pal_tlb_check_info_t pme_tlb;
674 pal_bus_check_info_t pme_bus;
675 pal_reg_file_check_info_t pme_reg_file;
676 pal_uarch_check_info_t pme_uarch;
677 } pal_mc_error_info_t;
678
679 #define pmci_proc_unknown_check pme_processor.uc
680 #define pmci_proc_bus_check pme_processor.bc
681 #define pmci_proc_tlb_check pme_processor.tc
682 #define pmci_proc_cache_check pme_processor.cc
683 #define pmci_proc_dynamic_state_size pme_processor.dsize
684 #define pmci_proc_gpr_valid pme_processor.gr
685 #define pmci_proc_preserved_bank0_gpr_valid pme_processor.b0
686 #define pmci_proc_preserved_bank1_gpr_valid pme_processor.b1
687 #define pmci_proc_fp_valid pme_processor.fp
688 #define pmci_proc_predicate_regs_valid pme_processor.pr
689 #define pmci_proc_branch_regs_valid pme_processor.br
690 #define pmci_proc_app_regs_valid pme_processor.ar
691 #define pmci_proc_region_regs_valid pme_processor.rr
692 #define pmci_proc_translation_regs_valid pme_processor.tr
693 #define pmci_proc_debug_regs_valid pme_processor.dr
694 #define pmci_proc_perf_counters_valid pme_processor.pc
695 #define pmci_proc_control_regs_valid pme_processor.cr
696 #define pmci_proc_machine_check_expected pme_processor.ex
697 #define pmci_proc_machine_check_corrected pme_processor.cm
698 #define pmci_proc_rse_valid pme_processor.rs
699 #define pmci_proc_machine_check_or_init pme_processor.in
700 #define pmci_proc_dynamic_state_valid pme_processor.dy
701 #define pmci_proc_operation pme_processor.op
702 #define pmci_proc_trap_lost pme_processor.tl
703 #define pmci_proc_hardware_damage pme_processor.hd
704 #define pmci_proc_uncontained_storage_damage pme_processor.us
705 #define pmci_proc_machine_check_isolated pme_processor.ci
706 #define pmci_proc_continuable pme_processor.co
707 #define pmci_proc_storage_intergrity_synced pme_processor.sy
708 #define pmci_proc_min_state_save_area_regd pme_processor.mn
709 #define pmci_proc_distinct_multiple_errors pme_processor.me
710 #define pmci_proc_pal_attempted_rendezvous pme_processor.ra
711 #define pmci_proc_pal_rendezvous_complete pme_processor.rz
712
713
714 #define pmci_cache_level pme_cache.level
715 #define pmci_cache_line_state pme_cache.mesi
716 #define pmci_cache_line_state_valid pme_cache.mv
717 #define pmci_cache_line_index pme_cache.index
718 #define pmci_cache_instr_cache_fail pme_cache.ic
719 #define pmci_cache_data_cache_fail pme_cache.dc
720 #define pmci_cache_line_tag_fail pme_cache.tl
721 #define pmci_cache_line_data_fail pme_cache.dl
722 #define pmci_cache_operation pme_cache.op
723 #define pmci_cache_way_valid pme_cache.wv
724 #define pmci_cache_target_address_valid pme_cache.tv
725 #define pmci_cache_way pme_cache.way
726 #define pmci_cache_mc pme_cache.mc
727
728 #define pmci_tlb_instr_translation_cache_fail pme_tlb.itc
729 #define pmci_tlb_data_translation_cache_fail pme_tlb.dtc
730 #define pmci_tlb_instr_translation_reg_fail pme_tlb.itr
731 #define pmci_tlb_data_translation_reg_fail pme_tlb.dtr
732 #define pmci_tlb_translation_reg_slot pme_tlb.tr_slot
733 #define pmci_tlb_mc pme_tlb.mc
734
735 #define pmci_bus_status_info pme_bus.bsi
736 #define pmci_bus_req_address_valid pme_bus.rq
737 #define pmci_bus_resp_address_valid pme_bus.rp
738 #define pmci_bus_target_address_valid pme_bus.tv
739 #define pmci_bus_error_severity pme_bus.sev
740 #define pmci_bus_transaction_type pme_bus.type
741 #define pmci_bus_cache_cache_transfer pme_bus.cc
742 #define pmci_bus_transaction_size pme_bus.size
743 #define pmci_bus_internal_error pme_bus.ib
744 #define pmci_bus_external_error pme_bus.eb
745 #define pmci_bus_mc pme_bus.mc
746
747 /*
748 * NOTE: this min_state_save area struct only includes the 1KB
749 * architectural state save area. The other 3 KB is scratch space
750 * for PAL.
751 */
752
753 typedef struct pal_min_state_area_s {
754 u64 pmsa_nat_bits; /* nat bits for saved GRs */
755 u64 pmsa_gr[15]; /* GR1 - GR15 */
756 u64 pmsa_bank0_gr[16]; /* GR16 - GR31 */
757 u64 pmsa_bank1_gr[16]; /* GR16 - GR31 */
758 u64 pmsa_pr; /* predicate registers */
759 u64 pmsa_br0; /* branch register 0 */
760 u64 pmsa_rsc; /* ar.rsc */
761 u64 pmsa_iip; /* cr.iip */
762 u64 pmsa_ipsr; /* cr.ipsr */
763 u64 pmsa_ifs; /* cr.ifs */
764 u64 pmsa_xip; /* previous iip */
765 u64 pmsa_xpsr; /* previous psr */
766 u64 pmsa_xfs; /* previous ifs */
767 u64 pmsa_br1; /* branch register 1 */
768 u64 pmsa_reserved[70]; /* pal_min_state_area should total to 1KB */
769 } pal_min_state_area_t;
770
771
772 struct ia64_pal_retval {
773 /*
774 * A zero status value indicates call completed without error.
775 * A negative status value indicates reason of call failure.
776 * A positive status value indicates success but an
777 * informational value should be printed (e.g., "reboot for
778 * change to take effect").
779 */
780 s64 status;
781 u64 v0;
782 u64 v1;
783 u64 v2;
784 };
785
786 /*
787 * Note: Currently unused PAL arguments are generally labeled
788 * "reserved" so the value specified in the PAL documentation
789 * (generally 0) MUST be passed. Reserved parameters are not optional
790 * parameters.
791 */
792 extern struct ia64_pal_retval ia64_pal_call_static (u64, u64, u64, u64);
793 extern struct ia64_pal_retval ia64_pal_call_stacked (u64, u64, u64, u64);
794 extern struct ia64_pal_retval ia64_pal_call_phys_static (u64, u64, u64, u64);
795 extern struct ia64_pal_retval ia64_pal_call_phys_stacked (u64, u64, u64, u64);
796 extern void ia64_save_scratch_fpregs (struct ia64_fpreg *);
797 extern void ia64_load_scratch_fpregs (struct ia64_fpreg *);
798
799 #define PAL_CALL(iprv,a0,a1,a2,a3) do { \
800 struct ia64_fpreg fr[6]; \
801 ia64_save_scratch_fpregs(fr); \
802 iprv = ia64_pal_call_static(a0, a1, a2, a3); \
803 ia64_load_scratch_fpregs(fr); \
804 } while (0)
805
806 #define PAL_CALL_STK(iprv,a0,a1,a2,a3) do { \
807 struct ia64_fpreg fr[6]; \
808 ia64_save_scratch_fpregs(fr); \
809 iprv = ia64_pal_call_stacked(a0, a1, a2, a3); \
810 ia64_load_scratch_fpregs(fr); \
811 } while (0)
812
813 #define PAL_CALL_PHYS(iprv,a0,a1,a2,a3) do { \
814 struct ia64_fpreg fr[6]; \
815 ia64_save_scratch_fpregs(fr); \
816 iprv = ia64_pal_call_phys_static(a0, a1, a2, a3); \
817 ia64_load_scratch_fpregs(fr); \
818 } while (0)
819
820 #define PAL_CALL_PHYS_STK(iprv,a0,a1,a2,a3) do { \
821 struct ia64_fpreg fr[6]; \
822 ia64_save_scratch_fpregs(fr); \
823 iprv = ia64_pal_call_phys_stacked(a0, a1, a2, a3); \
824 ia64_load_scratch_fpregs(fr); \
825 } while (0)
826
827 typedef int (*ia64_pal_handler) (u64, ...);
828 extern ia64_pal_handler ia64_pal;
829 extern void ia64_pal_handler_init (void *);
830
831 extern ia64_pal_handler ia64_pal;
832
833 extern pal_cache_config_info_t l0d_cache_config_info;
834 extern pal_cache_config_info_t l0i_cache_config_info;
835 extern pal_cache_config_info_t l1_cache_config_info;
836 extern pal_cache_config_info_t l2_cache_config_info;
837
838 extern pal_cache_protection_info_t l0d_cache_protection_info;
839 extern pal_cache_protection_info_t l0i_cache_protection_info;
840 extern pal_cache_protection_info_t l1_cache_protection_info;
841 extern pal_cache_protection_info_t l2_cache_protection_info;
842
843 extern pal_cache_config_info_t pal_cache_config_info_get(pal_cache_level_t,
844 pal_cache_type_t);
845
846 extern pal_cache_protection_info_t pal_cache_protection_info_get(pal_cache_level_t,
847 pal_cache_type_t);
848
849
850 extern void pal_error(int);
851
852
853 /* Useful wrappers for the current list of pal procedures */
854
855 typedef union pal_bus_features_u {
856 u64 pal_bus_features_val;
857 struct {
858 u64 pbf_reserved1 : 29;
859 u64 pbf_req_bus_parking : 1;
860 u64 pbf_bus_lock_mask : 1;
861 u64 pbf_enable_half_xfer_rate : 1;
862 u64 pbf_reserved2 : 20;
863 u64 pbf_enable_shared_line_replace : 1;
864 u64 pbf_enable_exclusive_line_replace : 1;
865 u64 pbf_disable_xaction_queueing : 1;
866 u64 pbf_disable_resp_err_check : 1;
867 u64 pbf_disable_berr_check : 1;
868 u64 pbf_disable_bus_req_internal_err_signal : 1;
869 u64 pbf_disable_bus_req_berr_signal : 1;
870 u64 pbf_disable_bus_init_event_check : 1;
871 u64 pbf_disable_bus_init_event_signal : 1;
872 u64 pbf_disable_bus_addr_err_check : 1;
873 u64 pbf_disable_bus_addr_err_signal : 1;
874 u64 pbf_disable_bus_data_err_check : 1;
875 } pal_bus_features_s;
876 } pal_bus_features_u_t;
877
878 extern void pal_bus_features_print (u64);
879
880 /* Provide information about configurable processor bus features */
881 static inline s64
882 ia64_pal_bus_get_features (pal_bus_features_u_t *features_avail,
883 pal_bus_features_u_t *features_status,
884 pal_bus_features_u_t *features_control)
885 {
886 struct ia64_pal_retval iprv;
887 PAL_CALL_PHYS(iprv, PAL_BUS_GET_FEATURES, 0, 0, 0);
888 if (features_avail)
889 features_avail->pal_bus_features_val = iprv.v0;
890 if (features_status)
891 features_status->pal_bus_features_val = iprv.v1;
892 if (features_control)
893 features_control->pal_bus_features_val = iprv.v2;
894 return iprv.status;
895 }
896
897 /* Enables/disables specific processor bus features */
898 static inline s64
899 ia64_pal_bus_set_features (pal_bus_features_u_t feature_select)
900 {
901 struct ia64_pal_retval iprv;
902 PAL_CALL_PHYS(iprv, PAL_BUS_SET_FEATURES, feature_select.pal_bus_features_val, 0, 0);
903 return iprv.status;
904 }
905
906 /* Get detailed cache information */
907 static inline s64
908 ia64_pal_cache_config_info (u64 cache_level, u64 cache_type, pal_cache_config_info_t *conf)
909 {
910 struct ia64_pal_retval iprv;
911
912 PAL_CALL(iprv, PAL_CACHE_INFO, cache_level, cache_type, 0);
913
914 if (iprv.status == 0) {
915 conf->pcci_status = iprv.status;
916 conf->pcci_info_1.pcci1_data = iprv.v0;
917 conf->pcci_info_2.pcci2_data = iprv.v1;
918 conf->pcci_reserved = iprv.v2;
919 }
920 return iprv.status;
921
922 }
923
924 /* Get detailed cche protection information */
925 static inline s64
926 ia64_pal_cache_prot_info (u64 cache_level, u64 cache_type, pal_cache_protection_info_t *prot)
927 {
928 struct ia64_pal_retval iprv;
929
930 PAL_CALL(iprv, PAL_CACHE_PROT_INFO, cache_level, cache_type, 0);
931
932 if (iprv.status == 0) {
933 prot->pcpi_status = iprv.status;
934 prot->pcp_info[0].pcpi_data = iprv.v0 & 0xffffffff;
935 prot->pcp_info[1].pcpi_data = iprv.v0 >> 32;
936 prot->pcp_info[2].pcpi_data = iprv.v1 & 0xffffffff;
937 prot->pcp_info[3].pcpi_data = iprv.v1 >> 32;
938 prot->pcp_info[4].pcpi_data = iprv.v2 & 0xffffffff;
939 prot->pcp_info[5].pcpi_data = iprv.v2 >> 32;
940 }
941 return iprv.status;
942 }
943
944 /*
945 * Flush the processor instruction or data caches. *PROGRESS must be
946 * initialized to zero before calling this for the first time..
947 */
948 static inline s64
949 ia64_pal_cache_flush (u64 cache_type, u64 invalidate, u64 *progress, u64 *vector)
950 {
951 struct ia64_pal_retval iprv;
952 PAL_CALL(iprv, PAL_CACHE_FLUSH, cache_type, invalidate, *progress);
953 if (vector)
954 *vector = iprv.v0;
955 *progress = iprv.v1;
956 return iprv.status;
957 }
958
959
960 /* Initialize the processor controlled caches */
961 static inline s64
962 ia64_pal_cache_init (u64 level, u64 cache_type, u64 rest)
963 {
964 struct ia64_pal_retval iprv;
965 PAL_CALL(iprv, PAL_CACHE_INIT, level, cache_type, rest);
966 return iprv.status;
967 }
968
969 /* Initialize the tags and data of a data or unified cache line of
970 * processor controlled cache to known values without the availability
971 * of backing memory.
972 */
973 static inline s64
974 ia64_pal_cache_line_init (u64 physical_addr, u64 data_value)
975 {
976 struct ia64_pal_retval iprv;
977 PAL_CALL(iprv, PAL_CACHE_LINE_INIT, physical_addr, data_value, 0);
978 return iprv.status;
979 }
980
981
982 /* Read the data and tag of a processor controlled cache line for diags */
983 static inline s64
984 ia64_pal_cache_read (pal_cache_line_id_u_t line_id, u64 physical_addr)
985 {
986 struct ia64_pal_retval iprv;
987 PAL_CALL_PHYS_STK(iprv, PAL_CACHE_READ, line_id.pclid_data,
988 physical_addr, 0);
989 return iprv.status;
990 }
991
992 /* Return summary information about the hierarchy of caches controlled by the processor */
993 static inline long ia64_pal_cache_summary(unsigned long *cache_levels,
994 unsigned long *unique_caches)
995 {
996 struct ia64_pal_retval iprv;
997 PAL_CALL(iprv, PAL_CACHE_SUMMARY, 0, 0, 0);
998 if (cache_levels)
999 *cache_levels = iprv.v0;
1000 if (unique_caches)
1001 *unique_caches = iprv.v1;
1002 return iprv.status;
1003 }
1004
1005 /* Write the data and tag of a processor-controlled cache line for diags */
1006 static inline s64
1007 ia64_pal_cache_write (pal_cache_line_id_u_t line_id, u64 physical_addr, u64 data)
1008 {
1009 struct ia64_pal_retval iprv;
1010 PAL_CALL_PHYS_STK(iprv, PAL_CACHE_WRITE, line_id.pclid_data,
1011 physical_addr, data);
1012 return iprv.status;
1013 }
1014
1015
1016 /* Return the parameters needed to copy relocatable PAL procedures from ROM to memory */
1017 static inline s64
1018 ia64_pal_copy_info (u64 copy_type, u64 num_procs, u64 num_iopics,
1019 u64 *buffer_size, u64 *buffer_align)
1020 {
1021 struct ia64_pal_retval iprv;
1022 PAL_CALL(iprv, PAL_COPY_INFO, copy_type, num_procs, num_iopics);
1023 if (buffer_size)
1024 *buffer_size = iprv.v0;
1025 if (buffer_align)
1026 *buffer_align = iprv.v1;
1027 return iprv.status;
1028 }
1029
1030 /* Copy relocatable PAL procedures from ROM to memory */
1031 static inline s64
1032 ia64_pal_copy_pal (u64 target_addr, u64 alloc_size, u64 processor, u64 *pal_proc_offset)
1033 {
1034 struct ia64_pal_retval iprv;
1035 PAL_CALL(iprv, PAL_COPY_PAL, target_addr, alloc_size, processor);
1036 if (pal_proc_offset)
1037 *pal_proc_offset = iprv.v0;
1038 return iprv.status;
1039 }
1040
1041 /* Return the number of instruction and data debug register pairs */
1042 static inline long ia64_pal_debug_info(unsigned long *inst_regs,
1043 unsigned long *data_regs)
1044 {
1045 struct ia64_pal_retval iprv;
1046 PAL_CALL(iprv, PAL_DEBUG_INFO, 0, 0, 0);
1047 if (inst_regs)
1048 *inst_regs = iprv.v0;
1049 if (data_regs)
1050 *data_regs = iprv.v1;
1051
1052 return iprv.status;
1053 }
1054
1055 #ifdef TBD
1056 /* Switch from IA64-system environment to IA-32 system environment */
1057 static inline s64
1058 ia64_pal_enter_ia32_env (ia32_env1, ia32_env2, ia32_env3)
1059 {
1060 struct ia64_pal_retval iprv;
1061 PAL_CALL(iprv, PAL_ENTER_IA_32_ENV, ia32_env1, ia32_env2, ia32_env3);
1062 return iprv.status;
1063 }
1064 #endif
1065
1066 /* Get unique geographical address of this processor on its bus */
1067 static inline s64
1068 ia64_pal_fixed_addr (u64 *global_unique_addr)
1069 {
1070 struct ia64_pal_retval iprv;
1071 PAL_CALL(iprv, PAL_FIXED_ADDR, 0, 0, 0);
1072 if (global_unique_addr)
1073 *global_unique_addr = iprv.v0;
1074 return iprv.status;
1075 }
1076
1077 /* Get base frequency of the platform if generated by the processor */
1078 static inline long ia64_pal_freq_base(unsigned long *platform_base_freq)
1079 {
1080 struct ia64_pal_retval iprv;
1081 PAL_CALL(iprv, PAL_FREQ_BASE, 0, 0, 0);
1082 if (platform_base_freq)
1083 *platform_base_freq = iprv.v0;
1084 return iprv.status;
1085 }
1086
1087 /*
1088 * Get the ratios for processor frequency, bus frequency and interval timer to
1089 * to base frequency of the platform
1090 */
1091 static inline s64
1092 ia64_pal_freq_ratios (struct pal_freq_ratio *proc_ratio, struct pal_freq_ratio *bus_ratio,
1093 struct pal_freq_ratio *itc_ratio)
1094 {
1095 struct ia64_pal_retval iprv;
1096 PAL_CALL(iprv, PAL_FREQ_RATIOS, 0, 0, 0);
1097 if (proc_ratio)
1098 *(u64 *)proc_ratio = iprv.v0;
1099 if (bus_ratio)
1100 *(u64 *)bus_ratio = iprv.v1;
1101 if (itc_ratio)
1102 *(u64 *)itc_ratio = iprv.v2;
1103 return iprv.status;
1104 }
1105
1106 /*
1107 * Get the current hardware resource sharing policy of the processor
1108 */
1109 static inline s64
1110 ia64_pal_get_hw_policy (u64 proc_num, u64 *cur_policy, u64 *num_impacted,
1111 u64 *la)
1112 {
1113 struct ia64_pal_retval iprv;
1114 PAL_CALL(iprv, PAL_GET_HW_POLICY, proc_num, 0, 0);
1115 if (cur_policy)
1116 *cur_policy = iprv.v0;
1117 if (num_impacted)
1118 *num_impacted = iprv.v1;
1119 if (la)
1120 *la = iprv.v2;
1121 return iprv.status;
1122 }
1123
1124 /* Make the processor enter HALT or one of the implementation dependent low
1125 * power states where prefetching and execution are suspended and cache and
1126 * TLB coherency is not maintained.
1127 */
1128 static inline s64
1129 ia64_pal_halt (u64 halt_state)
1130 {
1131 struct ia64_pal_retval iprv;
1132 PAL_CALL(iprv, PAL_HALT, halt_state, 0, 0);
1133 return iprv.status;
1134 }
1135
1136 typedef union pal_power_mgmt_info_u {
1137 u64 ppmi_data;
1138 struct {
1139 u64 exit_latency : 16,
1140 entry_latency : 16,
1141 power_consumption : 28,
1142 im : 1,
1143 co : 1,
1144 reserved : 2;
1145 } pal_power_mgmt_info_s;
1146 } pal_power_mgmt_info_u_t;
1147
1148 /* Return information about processor's optional power management capabilities. */
1149 static inline s64
1150 ia64_pal_halt_info (pal_power_mgmt_info_u_t *power_buf)
1151 {
1152 struct ia64_pal_retval iprv;
1153 PAL_CALL_STK(iprv, PAL_HALT_INFO, (unsigned long) power_buf, 0, 0);
1154 return iprv.status;
1155 }
1156
1157 /* Get the current P-state information */
1158 static inline s64
1159 ia64_pal_get_pstate (u64 *pstate_index, unsigned long type)
1160 {
1161 struct ia64_pal_retval iprv;
1162 PAL_CALL_STK(iprv, PAL_GET_PSTATE, type, 0, 0);
1163 *pstate_index = iprv.v0;
1164 return iprv.status;
1165 }
1166
1167 /* Set the P-state */
1168 static inline s64
1169 ia64_pal_set_pstate (u64 pstate_index)
1170 {
1171 struct ia64_pal_retval iprv;
1172 PAL_CALL_STK(iprv, PAL_SET_PSTATE, pstate_index, 0, 0);
1173 return iprv.status;
1174 }
1175
1176 /* Processor branding information*/
1177 static inline s64
1178 ia64_pal_get_brand_info (char *brand_info)
1179 {
1180 struct ia64_pal_retval iprv;
1181 PAL_CALL_STK(iprv, PAL_BRAND_INFO, 0, (u64)brand_info, 0);
1182 return iprv.status;
1183 }
1184
1185 /* Cause the processor to enter LIGHT HALT state, where prefetching and execution are
1186 * suspended, but cache and TLB coherency is maintained.
1187 */
1188 static inline s64
1189 ia64_pal_halt_light (void)
1190 {
1191 struct ia64_pal_retval iprv;
1192 PAL_CALL(iprv, PAL_HALT_LIGHT, 0, 0, 0);
1193 return iprv.status;
1194 }
1195
1196 /* Clear all the processor error logging registers and reset the indicator that allows
1197 * the error logging registers to be written. This procedure also checks the pending
1198 * machine check bit and pending INIT bit and reports their states.
1199 */
1200 static inline s64
1201 ia64_pal_mc_clear_log (u64 *pending_vector)
1202 {
1203 struct ia64_pal_retval iprv;
1204 PAL_CALL(iprv, PAL_MC_CLEAR_LOG, 0, 0, 0);
1205 if (pending_vector)
1206 *pending_vector = iprv.v0;
1207 return iprv.status;
1208 }
1209
1210 /* Ensure that all outstanding transactions in a processor are completed or that any
1211 * MCA due to thes outstanding transaction is taken.
1212 */
1213 static inline s64
1214 ia64_pal_mc_drain (void)
1215 {
1216 struct ia64_pal_retval iprv;
1217 PAL_CALL(iprv, PAL_MC_DRAIN, 0, 0, 0);
1218 return iprv.status;
1219 }
1220
1221 /* Return the machine check dynamic processor state */
1222 static inline s64
1223 ia64_pal_mc_dynamic_state (u64 info_type, u64 dy_buffer, u64 *size)
1224 {
1225 struct ia64_pal_retval iprv;
1226 PAL_CALL(iprv, PAL_MC_DYNAMIC_STATE, info_type, dy_buffer, 0);
1227 if (size)
1228 *size = iprv.v0;
1229 return iprv.status;
1230 }
1231
1232 /* Return processor machine check information */
1233 static inline s64
1234 ia64_pal_mc_error_info (u64 info_index, u64 type_index, u64 *size, u64 *error_info)
1235 {
1236 struct ia64_pal_retval iprv;
1237 PAL_CALL(iprv, PAL_MC_ERROR_INFO, info_index, type_index, 0);
1238 if (size)
1239 *size = iprv.v0;
1240 if (error_info)
1241 *error_info = iprv.v1;
1242 return iprv.status;
1243 }
1244
1245 /* Injects the requested processor error or returns info on
1246 * supported injection capabilities for current processor implementation
1247 */
1248 static inline s64
1249 ia64_pal_mc_error_inject_phys (u64 err_type_info, u64 err_struct_info,
1250 u64 err_data_buffer, u64 *capabilities, u64 *resources)
1251 {
1252 struct ia64_pal_retval iprv;
1253 PAL_CALL_PHYS_STK(iprv, PAL_MC_ERROR_INJECT, err_type_info,
1254 err_struct_info, err_data_buffer);
1255 if (capabilities)
1256 *capabilities= iprv.v0;
1257 if (resources)
1258 *resources= iprv.v1;
1259 return iprv.status;
1260 }
1261
1262 static inline s64
1263 ia64_pal_mc_error_inject_virt (u64 err_type_info, u64 err_struct_info,
1264 u64 err_data_buffer, u64 *capabilities, u64 *resources)
1265 {
1266 struct ia64_pal_retval iprv;
1267 PAL_CALL_STK(iprv, PAL_MC_ERROR_INJECT, err_type_info,
1268 err_struct_info, err_data_buffer);
1269 if (capabilities)
1270 *capabilities= iprv.v0;
1271 if (resources)
1272 *resources= iprv.v1;
1273 return iprv.status;
1274 }
1275
1276 /* Inform PALE_CHECK whether a machine check is expected so that PALE_CHECK willnot
1277 * attempt to correct any expected machine checks.
1278 */
1279 static inline s64
1280 ia64_pal_mc_expected (u64 expected, u64 *previous)
1281 {
1282 struct ia64_pal_retval iprv;
1283 PAL_CALL(iprv, PAL_MC_EXPECTED, expected, 0, 0);
1284 if (previous)
1285 *previous = iprv.v0;
1286 return iprv.status;
1287 }
1288
1289 typedef union pal_hw_tracking_u {
1290 u64 pht_data;
1291 struct {
1292 u64 itc :4, /* Instruction cache tracking */
1293 dct :4, /* Date cache tracking */
1294 itt :4, /* Instruction TLB tracking */
1295 ddt :4, /* Data TLB tracking */
1296 reserved:48;
1297 } pal_hw_tracking_s;
1298 } pal_hw_tracking_u_t;
1299
1300 /*
1301 * Hardware tracking status.
1302 */
1303 static inline s64
1304 ia64_pal_mc_hw_tracking (u64 *status)
1305 {
1306 struct ia64_pal_retval iprv;
1307 PAL_CALL(iprv, PAL_MC_HW_TRACKING, 0, 0, 0);
1308 if (status)
1309 *status = iprv.v0;
1310 return iprv.status;
1311 }
1312
1313 /* Register a platform dependent location with PAL to which it can save
1314 * minimal processor state in the event of a machine check or initialization
1315 * event.
1316 */
1317 static inline s64
1318 ia64_pal_mc_register_mem (u64 physical_addr, u64 size, u64 *req_size)
1319 {
1320 struct ia64_pal_retval iprv;
1321 PAL_CALL(iprv, PAL_MC_REGISTER_MEM, physical_addr, size, 0);
1322 if (req_size)
1323 *req_size = iprv.v0;
1324 return iprv.status;
1325 }
1326
1327 /* Restore minimal architectural processor state, set CMC interrupt if necessary
1328 * and resume execution
1329 */
1330 static inline s64
1331 ia64_pal_mc_resume (u64 set_cmci, u64 save_ptr)
1332 {
1333 struct ia64_pal_retval iprv;
1334 PAL_CALL(iprv, PAL_MC_RESUME, set_cmci, save_ptr, 0);
1335 return iprv.status;
1336 }
1337
1338 /* Return the memory attributes implemented by the processor */
1339 static inline s64
1340 ia64_pal_mem_attrib (u64 *mem_attrib)
1341 {
1342 struct ia64_pal_retval iprv;
1343 PAL_CALL(iprv, PAL_MEM_ATTRIB, 0, 0, 0);
1344 if (mem_attrib)
1345 *mem_attrib = iprv.v0 & 0xff;
1346 return iprv.status;
1347 }
1348
1349 /* Return the amount of memory needed for second phase of processor
1350 * self-test and the required alignment of memory.
1351 */
1352 static inline s64
1353 ia64_pal_mem_for_test (u64 *bytes_needed, u64 *alignment)
1354 {
1355 struct ia64_pal_retval iprv;
1356 PAL_CALL(iprv, PAL_MEM_FOR_TEST, 0, 0, 0);
1357 if (bytes_needed)
1358 *bytes_needed = iprv.v0;
1359 if (alignment)
1360 *alignment = iprv.v1;
1361 return iprv.status;
1362 }
1363
1364 typedef union pal_perf_mon_info_u {
1365 u64 ppmi_data;
1366 struct {
1367 u64 generic : 8,
1368 width : 8,
1369 cycles : 8,
1370 retired : 8,
1371 reserved : 32;
1372 } pal_perf_mon_info_s;
1373 } pal_perf_mon_info_u_t;
1374
1375 /* Return the performance monitor information about what can be counted
1376 * and how to configure the monitors to count the desired events.
1377 */
1378 static inline s64
1379 ia64_pal_perf_mon_info (u64 *pm_buffer, pal_perf_mon_info_u_t *pm_info)
1380 {
1381 struct ia64_pal_retval iprv;
1382 PAL_CALL(iprv, PAL_PERF_MON_INFO, (unsigned long) pm_buffer, 0, 0);
1383 if (pm_info)
1384 pm_info->ppmi_data = iprv.v0;
1385 return iprv.status;
1386 }
1387
1388 /* Specifies the physical address of the processor interrupt block
1389 * and I/O port space.
1390 */
1391 static inline s64
1392 ia64_pal_platform_addr (u64 type, u64 physical_addr)
1393 {
1394 struct ia64_pal_retval iprv;
1395 PAL_CALL(iprv, PAL_PLATFORM_ADDR, type, physical_addr, 0);
1396 return iprv.status;
1397 }
1398
1399 /* Set the SAL PMI entrypoint in memory */
1400 static inline s64
1401 ia64_pal_pmi_entrypoint (u64 sal_pmi_entry_addr)
1402 {
1403 struct ia64_pal_retval iprv;
1404 PAL_CALL(iprv, PAL_PMI_ENTRYPOINT, sal_pmi_entry_addr, 0, 0);
1405 return iprv.status;
1406 }
1407
1408 struct pal_features_s;
1409 /* Provide information about configurable processor features */
1410 static inline s64
1411 ia64_pal_proc_get_features (u64 *features_avail,
1412 u64 *features_status,
1413 u64 *features_control,
1414 u64 features_set)
1415 {
1416 struct ia64_pal_retval iprv;
1417 PAL_CALL_PHYS(iprv, PAL_PROC_GET_FEATURES, 0, features_set, 0);
1418 if (iprv.status == 0) {
1419 *features_avail = iprv.v0;
1420 *features_status = iprv.v1;
1421 *features_control = iprv.v2;
1422 }
1423 return iprv.status;
1424 }
1425
1426 /* Enable/disable processor dependent features */
1427 static inline s64
1428 ia64_pal_proc_set_features (u64 feature_select)
1429 {
1430 struct ia64_pal_retval iprv;
1431 PAL_CALL_PHYS(iprv, PAL_PROC_SET_FEATURES, feature_select, 0, 0);
1432 return iprv.status;
1433 }
1434
1435 /*
1436 * Put everything in a struct so we avoid the global offset table whenever
1437 * possible.
1438 */
1439 typedef struct ia64_ptce_info_s {
1440 unsigned long base;
1441 u32 count[2];
1442 u32 stride[2];
1443 } ia64_ptce_info_t;
1444
1445 /* Return the information required for the architected loop used to purge
1446 * (initialize) the entire TC
1447 */
1448 static inline s64
1449 ia64_get_ptce (ia64_ptce_info_t *ptce)
1450 {
1451 struct ia64_pal_retval iprv;
1452
1453 if (!ptce)
1454 return -1;
1455
1456 PAL_CALL(iprv, PAL_PTCE_INFO, 0, 0, 0);
1457 if (iprv.status == 0) {
1458 ptce->base = iprv.v0;
1459 ptce->count[0] = iprv.v1 >> 32;
1460 ptce->count[1] = iprv.v1 & 0xffffffff;
1461 ptce->stride[0] = iprv.v2 >> 32;
1462 ptce->stride[1] = iprv.v2 & 0xffffffff;
1463 }
1464 return iprv.status;
1465 }
1466
1467 /* Return info about implemented application and control registers. */
1468 static inline s64
1469 ia64_pal_register_info (u64 info_request, u64 *reg_info_1, u64 *reg_info_2)
1470 {
1471 struct ia64_pal_retval iprv;
1472 PAL_CALL(iprv, PAL_REGISTER_INFO, info_request, 0, 0);
1473 if (reg_info_1)
1474 *reg_info_1 = iprv.v0;
1475 if (reg_info_2)
1476 *reg_info_2 = iprv.v1;
1477 return iprv.status;
1478 }
1479
1480 typedef union pal_hints_u {
1481 unsigned long ph_data;
1482 struct {
1483 unsigned long si : 1,
1484 li : 1,
1485 reserved : 62;
1486 } pal_hints_s;
1487 } pal_hints_u_t;
1488
1489 /* Return information about the register stack and RSE for this processor
1490 * implementation.
1491 */
1492 static inline long ia64_pal_rse_info(unsigned long *num_phys_stacked,
1493 pal_hints_u_t *hints)
1494 {
1495 struct ia64_pal_retval iprv;
1496 PAL_CALL(iprv, PAL_RSE_INFO, 0, 0, 0);
1497 if (num_phys_stacked)
1498 *num_phys_stacked = iprv.v0;
1499 if (hints)
1500 hints->ph_data = iprv.v1;
1501 return iprv.status;
1502 }
1503
1504 /*
1505 * Set the current hardware resource sharing policy of the processor
1506 */
1507 static inline s64
1508 ia64_pal_set_hw_policy (u64 policy)
1509 {
1510 struct ia64_pal_retval iprv;
1511 PAL_CALL(iprv, PAL_SET_HW_POLICY, policy, 0, 0);
1512 return iprv.status;
1513 }
1514
1515 /* Cause the processor to enter SHUTDOWN state, where prefetching and execution are
1516 * suspended, but cause cache and TLB coherency to be maintained.
1517 * This is usually called in IA-32 mode.
1518 */
1519 static inline s64
1520 ia64_pal_shutdown (void)
1521 {
1522 struct ia64_pal_retval iprv;
1523 PAL_CALL(iprv, PAL_SHUTDOWN, 0, 0, 0);
1524 return iprv.status;
1525 }
1526
1527 /* Perform the second phase of processor self-test. */
1528 static inline s64
1529 ia64_pal_test_proc (u64 test_addr, u64 test_size, u64 attributes, u64 *self_test_state)
1530 {
1531 struct ia64_pal_retval iprv;
1532 PAL_CALL(iprv, PAL_TEST_PROC, test_addr, test_size, attributes);
1533 if (self_test_state)
1534 *self_test_state = iprv.v0;
1535 return iprv.status;
1536 }
1537
1538 typedef union pal_version_u {
1539 u64 pal_version_val;
1540 struct {
1541 u64 pv_pal_b_rev : 8;
1542 u64 pv_pal_b_model : 8;
1543 u64 pv_reserved1 : 8;
1544 u64 pv_pal_vendor : 8;
1545 u64 pv_pal_a_rev : 8;
1546 u64 pv_pal_a_model : 8;
1547 u64 pv_reserved2 : 16;
1548 } pal_version_s;
1549 } pal_version_u_t;
1550
1551
1552 /*
1553 * Return PAL version information. While the documentation states that
1554 * PAL_VERSION can be called in either physical or virtual mode, some
1555 * implementations only allow physical calls. We don't call it very often,
1556 * so the overhead isn't worth eliminating.
1557 */
1558 static inline s64
1559 ia64_pal_version (pal_version_u_t *pal_min_version, pal_version_u_t *pal_cur_version)
1560 {
1561 struct ia64_pal_retval iprv;
1562 PAL_CALL_PHYS(iprv, PAL_VERSION, 0, 0, 0);
1563 if (pal_min_version)
1564 pal_min_version->pal_version_val = iprv.v0;
1565
1566 if (pal_cur_version)
1567 pal_cur_version->pal_version_val = iprv.v1;
1568
1569 return iprv.status;
1570 }
1571
1572 typedef union pal_tc_info_u {
1573 u64 pti_val;
1574 struct {
1575 u64 num_sets : 8,
1576 associativity : 8,
1577 num_entries : 16,
1578 pf : 1,
1579 unified : 1,
1580 reduce_tr : 1,
1581 reserved : 29;
1582 } pal_tc_info_s;
1583 } pal_tc_info_u_t;
1584
1585 #define tc_reduce_tr pal_tc_info_s.reduce_tr
1586 #define tc_unified pal_tc_info_s.unified
1587 #define tc_pf pal_tc_info_s.pf
1588 #define tc_num_entries pal_tc_info_s.num_entries
1589 #define tc_associativity pal_tc_info_s.associativity
1590 #define tc_num_sets pal_tc_info_s.num_sets
1591
1592
1593 /* Return information about the virtual memory characteristics of the processor
1594 * implementation.
1595 */
1596 static inline s64
1597 ia64_pal_vm_info (u64 tc_level, u64 tc_type, pal_tc_info_u_t *tc_info, u64 *tc_pages)
1598 {
1599 struct ia64_pal_retval iprv;
1600 PAL_CALL(iprv, PAL_VM_INFO, tc_level, tc_type, 0);
1601 if (tc_info)
1602 tc_info->pti_val = iprv.v0;
1603 if (tc_pages)
1604 *tc_pages = iprv.v1;
1605 return iprv.status;
1606 }
1607
1608 /* Get page size information about the virtual memory characteristics of the processor
1609 * implementation.
1610 */
1611 static inline s64 ia64_pal_vm_page_size(u64 *tr_pages, u64 *vw_pages)
1612 {
1613 struct ia64_pal_retval iprv;
1614 PAL_CALL(iprv, PAL_VM_PAGE_SIZE, 0, 0, 0);
1615 if (tr_pages)
1616 *tr_pages = iprv.v0;
1617 if (vw_pages)
1618 *vw_pages = iprv.v1;
1619 return iprv.status;
1620 }
1621
1622 typedef union pal_vm_info_1_u {
1623 u64 pvi1_val;
1624 struct {
1625 u64 vw : 1,
1626 phys_add_size : 7,
1627 key_size : 8,
1628 max_pkr : 8,
1629 hash_tag_id : 8,
1630 max_dtr_entry : 8,
1631 max_itr_entry : 8,
1632 max_unique_tcs : 8,
1633 num_tc_levels : 8;
1634 } pal_vm_info_1_s;
1635 } pal_vm_info_1_u_t;
1636
1637 #define PAL_MAX_PURGES 0xFFFF /* all ones is means unlimited */
1638
1639 typedef union pal_vm_info_2_u {
1640 u64 pvi2_val;
1641 struct {
1642 u64 impl_va_msb : 8,
1643 rid_size : 8,
1644 max_purges : 16,
1645 reserved : 32;
1646 } pal_vm_info_2_s;
1647 } pal_vm_info_2_u_t;
1648
1649 /* Get summary information about the virtual memory characteristics of the processor
1650 * implementation.
1651 */
1652 static inline s64
1653 ia64_pal_vm_summary (pal_vm_info_1_u_t *vm_info_1, pal_vm_info_2_u_t *vm_info_2)
1654 {
1655 struct ia64_pal_retval iprv;
1656 PAL_CALL(iprv, PAL_VM_SUMMARY, 0, 0, 0);
1657 if (vm_info_1)
1658 vm_info_1->pvi1_val = iprv.v0;
1659 if (vm_info_2)
1660 vm_info_2->pvi2_val = iprv.v1;
1661 return iprv.status;
1662 }
1663
1664 typedef union pal_vp_info_u {
1665 u64 pvi_val;
1666 struct {
1667 u64 index: 48, /* virtual feature set info */
1668 vmm_id: 16; /* feature set id */
1669 } pal_vp_info_s;
1670 } pal_vp_info_u_t;
1671
1672 /*
1673 * Returns information about virtual processor features
1674 */
1675 static inline s64
1676 ia64_pal_vp_info (u64 feature_set, u64 vp_buffer, u64 *vp_info, u64 *vmm_id)
1677 {
1678 struct ia64_pal_retval iprv;
1679 PAL_CALL(iprv, PAL_VP_INFO, feature_set, vp_buffer, 0);
1680 if (vp_info)
1681 *vp_info = iprv.v0;
1682 if (vmm_id)
1683 *vmm_id = iprv.v1;
1684 return iprv.status;
1685 }
1686
1687 typedef union pal_itr_valid_u {
1688 u64 piv_val;
1689 struct {
1690 u64 access_rights_valid : 1,
1691 priv_level_valid : 1,
1692 dirty_bit_valid : 1,
1693 mem_attr_valid : 1,
1694 reserved : 60;
1695 } pal_tr_valid_s;
1696 } pal_tr_valid_u_t;
1697
1698 /* Read a translation register */
1699 static inline s64
1700 ia64_pal_tr_read (u64 reg_num, u64 tr_type, u64 *tr_buffer, pal_tr_valid_u_t *tr_valid)
1701 {
1702 struct ia64_pal_retval iprv;
1703 PAL_CALL_PHYS_STK(iprv, PAL_VM_TR_READ, reg_num, tr_type,(u64)ia64_tpa(tr_buffer));
1704 if (tr_valid)
1705 tr_valid->piv_val = iprv.v0;
1706 return iprv.status;
1707 }
1708
1709 /*
1710 * PAL_PREFETCH_VISIBILITY transaction types
1711 */
1712 #define PAL_VISIBILITY_VIRTUAL 0
1713 #define PAL_VISIBILITY_PHYSICAL 1
1714
1715 /*
1716 * PAL_PREFETCH_VISIBILITY return codes
1717 */
1718 #define PAL_VISIBILITY_OK 1
1719 #define PAL_VISIBILITY_OK_REMOTE_NEEDED 0
1720 #define PAL_VISIBILITY_INVAL_ARG -2
1721 #define PAL_VISIBILITY_ERROR -3
1722
1723 static inline s64
1724 ia64_pal_prefetch_visibility (s64 trans_type)
1725 {
1726 struct ia64_pal_retval iprv;
1727 PAL_CALL(iprv, PAL_PREFETCH_VISIBILITY, trans_type, 0, 0);
1728 return iprv.status;
1729 }
1730
1731 /* data structure for getting information on logical to physical mappings */
1732 typedef union pal_log_overview_u {
1733 struct {
1734 u64 num_log :16, /* Total number of logical
1735 * processors on this die
1736 */
1737 tpc :8, /* Threads per core */
1738 reserved3 :8, /* Reserved */
1739 cpp :8, /* Cores per processor */
1740 reserved2 :8, /* Reserved */
1741 ppid :8, /* Physical processor ID */
1742 reserved1 :8; /* Reserved */
1743 } overview_bits;
1744 u64 overview_data;
1745 } pal_log_overview_t;
1746
1747 typedef union pal_proc_n_log_info1_u{
1748 struct {
1749 u64 tid :16, /* Thread id */
1750 reserved2 :16, /* Reserved */
1751 cid :16, /* Core id */
1752 reserved1 :16; /* Reserved */
1753 } ppli1_bits;
1754 u64 ppli1_data;
1755 } pal_proc_n_log_info1_t;
1756
1757 typedef union pal_proc_n_log_info2_u {
1758 struct {
1759 u64 la :16, /* Logical address */
1760 reserved :48; /* Reserved */
1761 } ppli2_bits;
1762 u64 ppli2_data;
1763 } pal_proc_n_log_info2_t;
1764
1765 typedef struct pal_logical_to_physical_s
1766 {
1767 pal_log_overview_t overview;
1768 pal_proc_n_log_info1_t ppli1;
1769 pal_proc_n_log_info2_t ppli2;
1770 } pal_logical_to_physical_t;
1771
1772 #define overview_num_log overview.overview_bits.num_log
1773 #define overview_tpc overview.overview_bits.tpc
1774 #define overview_cpp overview.overview_bits.cpp
1775 #define overview_ppid overview.overview_bits.ppid
1776 #define log1_tid ppli1.ppli1_bits.tid
1777 #define log1_cid ppli1.ppli1_bits.cid
1778 #define log2_la ppli2.ppli2_bits.la
1779
1780 /* Get information on logical to physical processor mappings. */
1781 static inline s64
1782 ia64_pal_logical_to_phys(u64 proc_number, pal_logical_to_physical_t *mapping)
1783 {
1784 struct ia64_pal_retval iprv;
1785
1786 PAL_CALL(iprv, PAL_LOGICAL_TO_PHYSICAL, proc_number, 0, 0);
1787
1788 if (iprv.status == PAL_STATUS_SUCCESS)
1789 {
1790 mapping->overview.overview_data = iprv.v0;
1791 mapping->ppli1.ppli1_data = iprv.v1;
1792 mapping->ppli2.ppli2_data = iprv.v2;
1793 }
1794
1795 return iprv.status;
1796 }
1797
1798 typedef struct pal_cache_shared_info_s
1799 {
1800 u64 num_shared;
1801 pal_proc_n_log_info1_t ppli1;
1802 pal_proc_n_log_info2_t ppli2;
1803 } pal_cache_shared_info_t;
1804
1805 /* Get information on logical to physical processor mappings. */
1806 static inline s64
1807 ia64_pal_cache_shared_info(u64 level,
1808 u64 type,
1809 u64 proc_number,
1810 pal_cache_shared_info_t *info)
1811 {
1812 struct ia64_pal_retval iprv;
1813
1814 PAL_CALL(iprv, PAL_CACHE_SHARED_INFO, level, type, proc_number);
1815
1816 if (iprv.status == PAL_STATUS_SUCCESS) {
1817 info->num_shared = iprv.v0;
1818 info->ppli1.ppli1_data = iprv.v1;
1819 info->ppli2.ppli2_data = iprv.v2;
1820 }
1821
1822 return iprv.status;
1823 }
1824 #endif /* __ASSEMBLY__ */
1825
1826 #endif /* _ASM_IA64_PAL_H */
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