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authorHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>2005-09-16 00:44:56 -0400
committerTony Luck <tony.luck@intel.com>2005-09-16 13:39:40 -0400
commit20305e59724381365096b6ab0a48054723367c80 (patch)
tree726e1d1fae47fef713cfeecb508bea24b8b6e57d /arch/ia64/kernel
parent8ee9e23d41d2c51fafd158861fa4639fb199baf0 (diff)
[IA64] mca_drv cleanup
There were some trailing white spaces, long lines, brackets in weird style etc. This patch cleans them up. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/mca_drv.c114
-rw-r--r--arch/ia64/kernel/mca_drv.h2
-rw-r--r--arch/ia64/kernel/mca_drv_asm.S48
3 files changed, 94 insertions, 70 deletions
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index 6e683745af49..80f83d6cdbfc 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -84,23 +84,23 @@ mca_page_isolate(unsigned long paddr)
84 struct page *p; 84 struct page *p;
85 85
86 /* whether physical address is valid or not */ 86 /* whether physical address is valid or not */
87 if ( !ia64_phys_addr_valid(paddr) ) 87 if (!ia64_phys_addr_valid(paddr))
88 return ISOLATE_NG; 88 return ISOLATE_NG;
89 89
90 /* convert physical address to physical page number */ 90 /* convert physical address to physical page number */
91 p = pfn_to_page(paddr>>PAGE_SHIFT); 91 p = pfn_to_page(paddr>>PAGE_SHIFT);
92 92
93 /* check whether a page number have been already registered or not */ 93 /* check whether a page number have been already registered or not */
94 for( i = 0; i < num_page_isolate; i++ ) 94 for (i = 0; i < num_page_isolate; i++)
95 if( page_isolate[i] == p ) 95 if (page_isolate[i] == p)
96 return ISOLATE_OK; /* already listed */ 96 return ISOLATE_OK; /* already listed */
97 97
98 /* limitation check */ 98 /* limitation check */
99 if( num_page_isolate == MAX_PAGE_ISOLATE ) 99 if (num_page_isolate == MAX_PAGE_ISOLATE)
100 return ISOLATE_NG; 100 return ISOLATE_NG;
101 101
102 /* kick pages having attribute 'SLAB' or 'Reserved' */ 102 /* kick pages having attribute 'SLAB' or 'Reserved' */
103 if( PageSlab(p) || PageReserved(p) ) 103 if (PageSlab(p) || PageReserved(p))
104 return ISOLATE_NG; 104 return ISOLATE_NG;
105 105
106 /* add attribute 'Reserved' and register the page */ 106 /* add attribute 'Reserved' and register the page */
@@ -139,10 +139,10 @@ mca_handler_bh(unsigned long paddr)
139 * @peidx: pointer to index of processor error section 139 * @peidx: pointer to index of processor error section
140 */ 140 */
141 141
142static void 142static void
143mca_make_peidx(sal_log_processor_info_t *slpi, peidx_table_t *peidx) 143mca_make_peidx(sal_log_processor_info_t *slpi, peidx_table_t *peidx)
144{ 144{
145 /* 145 /*
146 * calculate the start address of 146 * calculate the start address of
147 * "struct cpuid_info" and "sal_processor_static_info_t". 147 * "struct cpuid_info" and "sal_processor_static_info_t".
148 */ 148 */
@@ -164,7 +164,7 @@ mca_make_peidx(sal_log_processor_info_t *slpi, peidx_table_t *peidx)
164} 164}
165 165
166/** 166/**
167 * mca_make_slidx - Make index of SAL error record 167 * mca_make_slidx - Make index of SAL error record
168 * @buffer: pointer to SAL error record 168 * @buffer: pointer to SAL error record
169 * @slidx: pointer to index of SAL error record 169 * @slidx: pointer to index of SAL error record
170 * 170 *
@@ -172,12 +172,12 @@ mca_make_peidx(sal_log_processor_info_t *slpi, peidx_table_t *peidx)
172 * 1 if record has platform error / 0 if not 172 * 1 if record has platform error / 0 if not
173 */ 173 */
174#define LOG_INDEX_ADD_SECT_PTR(sect, ptr) \ 174#define LOG_INDEX_ADD_SECT_PTR(sect, ptr) \
175 { slidx_list_t *hl = &slidx_pool.buffer[slidx_pool.cur_idx]; \ 175 {slidx_list_t *hl = &slidx_pool.buffer[slidx_pool.cur_idx]; \
176 hl->hdr = ptr; \ 176 hl->hdr = ptr; \
177 list_add(&hl->list, &(sect)); \ 177 list_add(&hl->list, &(sect)); \
178 slidx_pool.cur_idx = (slidx_pool.cur_idx + 1)%slidx_pool.max_idx; } 178 slidx_pool.cur_idx = (slidx_pool.cur_idx + 1)%slidx_pool.max_idx; }
179 179
180static int 180static int
181mca_make_slidx(void *buffer, slidx_table_t *slidx) 181mca_make_slidx(void *buffer, slidx_table_t *slidx)
182{ 182{
183 int platform_err = 0; 183 int platform_err = 0;
@@ -214,28 +214,36 @@ mca_make_slidx(void *buffer, slidx_table_t *slidx)
214 sp = (sal_log_section_hdr_t *)((char*)buffer + ercd_pos); 214 sp = (sal_log_section_hdr_t *)((char*)buffer + ercd_pos);
215 if (!efi_guidcmp(sp->guid, SAL_PROC_DEV_ERR_SECT_GUID)) { 215 if (!efi_guidcmp(sp->guid, SAL_PROC_DEV_ERR_SECT_GUID)) {
216 LOG_INDEX_ADD_SECT_PTR(slidx->proc_err, sp); 216 LOG_INDEX_ADD_SECT_PTR(slidx->proc_err, sp);
217 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_MEM_DEV_ERR_SECT_GUID)) { 217 } else if (!efi_guidcmp(sp->guid,
218 SAL_PLAT_MEM_DEV_ERR_SECT_GUID)) {
218 platform_err = 1; 219 platform_err = 1;
219 LOG_INDEX_ADD_SECT_PTR(slidx->mem_dev_err, sp); 220 LOG_INDEX_ADD_SECT_PTR(slidx->mem_dev_err, sp);
220 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_SEL_DEV_ERR_SECT_GUID)) { 221 } else if (!efi_guidcmp(sp->guid,
222 SAL_PLAT_SEL_DEV_ERR_SECT_GUID)) {
221 platform_err = 1; 223 platform_err = 1;
222 LOG_INDEX_ADD_SECT_PTR(slidx->sel_dev_err, sp); 224 LOG_INDEX_ADD_SECT_PTR(slidx->sel_dev_err, sp);
223 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_PCI_BUS_ERR_SECT_GUID)) { 225 } else if (!efi_guidcmp(sp->guid,
226 SAL_PLAT_PCI_BUS_ERR_SECT_GUID)) {
224 platform_err = 1; 227 platform_err = 1;
225 LOG_INDEX_ADD_SECT_PTR(slidx->pci_bus_err, sp); 228 LOG_INDEX_ADD_SECT_PTR(slidx->pci_bus_err, sp);
226 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_SMBIOS_DEV_ERR_SECT_GUID)) { 229 } else if (!efi_guidcmp(sp->guid,
230 SAL_PLAT_SMBIOS_DEV_ERR_SECT_GUID)) {
227 platform_err = 1; 231 platform_err = 1;
228 LOG_INDEX_ADD_SECT_PTR(slidx->smbios_dev_err, sp); 232 LOG_INDEX_ADD_SECT_PTR(slidx->smbios_dev_err, sp);
229 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_PCI_COMP_ERR_SECT_GUID)) { 233 } else if (!efi_guidcmp(sp->guid,
234 SAL_PLAT_PCI_COMP_ERR_SECT_GUID)) {
230 platform_err = 1; 235 platform_err = 1;
231 LOG_INDEX_ADD_SECT_PTR(slidx->pci_comp_err, sp); 236 LOG_INDEX_ADD_SECT_PTR(slidx->pci_comp_err, sp);
232 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_SPECIFIC_ERR_SECT_GUID)) { 237 } else if (!efi_guidcmp(sp->guid,
238 SAL_PLAT_SPECIFIC_ERR_SECT_GUID)) {
233 platform_err = 1; 239 platform_err = 1;
234 LOG_INDEX_ADD_SECT_PTR(slidx->plat_specific_err, sp); 240 LOG_INDEX_ADD_SECT_PTR(slidx->plat_specific_err, sp);
235 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_HOST_CTLR_ERR_SECT_GUID)) { 241 } else if (!efi_guidcmp(sp->guid,
242 SAL_PLAT_HOST_CTLR_ERR_SECT_GUID)) {
236 platform_err = 1; 243 platform_err = 1;
237 LOG_INDEX_ADD_SECT_PTR(slidx->host_ctlr_err, sp); 244 LOG_INDEX_ADD_SECT_PTR(slidx->host_ctlr_err, sp);
238 } else if (!efi_guidcmp(sp->guid, SAL_PLAT_BUS_ERR_SECT_GUID)) { 245 } else if (!efi_guidcmp(sp->guid,
246 SAL_PLAT_BUS_ERR_SECT_GUID)) {
239 platform_err = 1; 247 platform_err = 1;
240 LOG_INDEX_ADD_SECT_PTR(slidx->plat_bus_err, sp); 248 LOG_INDEX_ADD_SECT_PTR(slidx->plat_bus_err, sp);
241 } else { 249 } else {
@@ -253,15 +261,16 @@ mca_make_slidx(void *buffer, slidx_table_t *slidx)
253 * Return value: 261 * Return value:
254 * 0 on Success / -ENOMEM on Failure 262 * 0 on Success / -ENOMEM on Failure
255 */ 263 */
256static int 264static int
257init_record_index_pools(void) 265init_record_index_pools(void)
258{ 266{
259 int i; 267 int i;
260 int rec_max_size; /* Maximum size of SAL error records */ 268 int rec_max_size; /* Maximum size of SAL error records */
261 int sect_min_size; /* Minimum size of SAL error sections */ 269 int sect_min_size; /* Minimum size of SAL error sections */
262 /* minimum size table of each section */ 270 /* minimum size table of each section */
263 static int sal_log_sect_min_sizes[] = { 271 static int sal_log_sect_min_sizes[] = {
264 sizeof(sal_log_processor_info_t) + sizeof(sal_processor_static_info_t), 272 sizeof(sal_log_processor_info_t)
273 + sizeof(sal_processor_static_info_t),
265 sizeof(sal_log_mem_dev_err_info_t), 274 sizeof(sal_log_mem_dev_err_info_t),
266 sizeof(sal_log_sel_dev_err_info_t), 275 sizeof(sal_log_sel_dev_err_info_t),
267 sizeof(sal_log_pci_bus_err_info_t), 276 sizeof(sal_log_pci_bus_err_info_t),
@@ -294,7 +303,8 @@ init_record_index_pools(void)
294 303
295 /* - 3 - */ 304 /* - 3 - */
296 slidx_pool.max_idx = (rec_max_size/sect_min_size) * 2 + 1; 305 slidx_pool.max_idx = (rec_max_size/sect_min_size) * 2 + 1;
297 slidx_pool.buffer = (slidx_list_t *) kmalloc(slidx_pool.max_idx * sizeof(slidx_list_t), GFP_KERNEL); 306 slidx_pool.buffer = (slidx_list_t *)
307 kmalloc(slidx_pool.max_idx * sizeof(slidx_list_t), GFP_KERNEL);
298 308
299 return slidx_pool.buffer ? 0 : -ENOMEM; 309 return slidx_pool.buffer ? 0 : -ENOMEM;
300} 310}
@@ -308,6 +318,7 @@ init_record_index_pools(void)
308 * is_mca_global - Check whether this MCA is global or not 318 * is_mca_global - Check whether this MCA is global or not
309 * @peidx: pointer of index of processor error section 319 * @peidx: pointer of index of processor error section
310 * @pbci: pointer to pal_bus_check_info_t 320 * @pbci: pointer to pal_bus_check_info_t
321 * @sos: pointer to hand off struct between SAL and OS
311 * 322 *
312 * Return value: 323 * Return value:
313 * MCA_IS_LOCAL / MCA_IS_GLOBAL 324 * MCA_IS_LOCAL / MCA_IS_GLOBAL
@@ -317,11 +328,12 @@ static mca_type_t
317is_mca_global(peidx_table_t *peidx, pal_bus_check_info_t *pbci, 328is_mca_global(peidx_table_t *peidx, pal_bus_check_info_t *pbci,
318 struct ia64_sal_os_state *sos) 329 struct ia64_sal_os_state *sos)
319{ 330{
320 pal_processor_state_info_t *psp = (pal_processor_state_info_t*)peidx_psp(peidx); 331 pal_processor_state_info_t *psp =
332 (pal_processor_state_info_t*)peidx_psp(peidx);
321 333
322 /* 334 /*
323 * PAL can request a rendezvous, if the MCA has a global scope. 335 * PAL can request a rendezvous, if the MCA has a global scope.
324 * If "rz_always" flag is set, SAL requests MCA rendezvous 336 * If "rz_always" flag is set, SAL requests MCA rendezvous
325 * in spite of global MCA. 337 * in spite of global MCA.
326 * Therefore it is local MCA when rendezvous has not been requested. 338 * Therefore it is local MCA when rendezvous has not been requested.
327 * Failed to rendezvous, the system must be down. 339 * Failed to rendezvous, the system must be down.
@@ -381,13 +393,15 @@ is_mca_global(peidx_table_t *peidx, pal_bus_check_info_t *pbci,
381 * @slidx: pointer of index of SAL error record 393 * @slidx: pointer of index of SAL error record
382 * @peidx: pointer of index of processor error section 394 * @peidx: pointer of index of processor error section
383 * @pbci: pointer of pal_bus_check_info 395 * @pbci: pointer of pal_bus_check_info
396 * @sos: pointer to hand off struct between SAL and OS
384 * 397 *
385 * Return value: 398 * Return value:
386 * 1 on Success / 0 on Failure 399 * 1 on Success / 0 on Failure
387 */ 400 */
388 401
389static int 402static int
390recover_from_read_error(slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_check_info_t *pbci, 403recover_from_read_error(slidx_table_t *slidx,
404 peidx_table_t *peidx, pal_bus_check_info_t *pbci,
391 struct ia64_sal_os_state *sos) 405 struct ia64_sal_os_state *sos)
392{ 406{
393 sal_log_mod_error_info_t *smei; 407 sal_log_mod_error_info_t *smei;
@@ -453,24 +467,28 @@ recover_from_read_error(slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_chec
453 * @slidx: pointer of index of SAL error record 467 * @slidx: pointer of index of SAL error record
454 * @peidx: pointer of index of processor error section 468 * @peidx: pointer of index of processor error section
455 * @pbci: pointer of pal_bus_check_info 469 * @pbci: pointer of pal_bus_check_info
470 * @sos: pointer to hand off struct between SAL and OS
456 * 471 *
457 * Return value: 472 * Return value:
458 * 1 on Success / 0 on Failure 473 * 1 on Success / 0 on Failure
459 */ 474 */
460 475
461static int 476static int
462recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_check_info_t *pbci, 477recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx,
478 pal_bus_check_info_t *pbci,
463 struct ia64_sal_os_state *sos) 479 struct ia64_sal_os_state *sos)
464{ 480{
465 int status = 0; 481 int status = 0;
466 pal_processor_state_info_t *psp = (pal_processor_state_info_t*)peidx_psp(peidx); 482 pal_processor_state_info_t *psp =
483 (pal_processor_state_info_t*)peidx_psp(peidx);
467 484
468 if (psp->bc && pbci->eb && pbci->bsi == 0) { 485 if (psp->bc && pbci->eb && pbci->bsi == 0) {
469 switch(pbci->type) { 486 switch(pbci->type) {
470 case 1: /* partial read */ 487 case 1: /* partial read */
471 case 3: /* full line(cpu) read */ 488 case 3: /* full line(cpu) read */
472 case 9: /* I/O space read */ 489 case 9: /* I/O space read */
473 status = recover_from_read_error(slidx, peidx, pbci, sos); 490 status = recover_from_read_error(slidx, peidx, pbci,
491 sos);
474 break; 492 break;
475 case 0: /* unknown */ 493 case 0: /* unknown */
476 case 2: /* partial write */ 494 case 2: /* partial write */
@@ -481,7 +499,8 @@ recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_
481 case 8: /* write coalescing transactions */ 499 case 8: /* write coalescing transactions */
482 case 10: /* I/O space write */ 500 case 10: /* I/O space write */
483 case 11: /* inter-processor interrupt message(IPI) */ 501 case 11: /* inter-processor interrupt message(IPI) */
484 case 12: /* interrupt acknowledge or external task priority cycle */ 502 case 12: /* interrupt acknowledge or
503 external task priority cycle */
485 default: 504 default:
486 break; 505 break;
487 } 506 }
@@ -496,6 +515,7 @@ recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_
496 * @slidx: pointer of index of SAL error record 515 * @slidx: pointer of index of SAL error record
497 * @peidx: pointer of index of processor error section 516 * @peidx: pointer of index of processor error section
498 * @pbci: pointer of pal_bus_check_info 517 * @pbci: pointer of pal_bus_check_info
518 * @sos: pointer to hand off struct between SAL and OS
499 * 519 *
500 * Return value: 520 * Return value:
501 * 1 on Success / 0 on Failure 521 * 1 on Success / 0 on Failure
@@ -509,15 +529,17 @@ recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_
509 */ 529 */
510 530
511static int 531static int
512recover_from_processor_error(int platform, slidx_table_t *slidx, peidx_table_t *peidx, pal_bus_check_info_t *pbci, 532recover_from_processor_error(int platform, slidx_table_t *slidx,
533 peidx_table_t *peidx, pal_bus_check_info_t *pbci,
513 struct ia64_sal_os_state *sos) 534 struct ia64_sal_os_state *sos)
514{ 535{
515 pal_processor_state_info_t *psp = (pal_processor_state_info_t*)peidx_psp(peidx); 536 pal_processor_state_info_t *psp =
537 (pal_processor_state_info_t*)peidx_psp(peidx);
516 538
517 /* 539 /*
518 * We cannot recover errors with other than bus_check. 540 * We cannot recover errors with other than bus_check.
519 */ 541 */
520 if (psp->cc || psp->rc || psp->uc) 542 if (psp->cc || psp->rc || psp->uc)
521 return 0; 543 return 0;
522 544
523 /* 545 /*
@@ -546,10 +568,10 @@ recover_from_processor_error(int platform, slidx_table_t *slidx, peidx_table_t *
546 * (e.g. a load from poisoned memory) 568 * (e.g. a load from poisoned memory)
547 * This means "there are some platform errors". 569 * This means "there are some platform errors".
548 */ 570 */
549 if (platform) 571 if (platform)
550 return recover_from_platform_error(slidx, peidx, pbci, sos); 572 return recover_from_platform_error(slidx, peidx, pbci, sos);
551 /* 573 /*
552 * On account of strange SAL error record, we cannot recover. 574 * On account of strange SAL error record, we cannot recover.
553 */ 575 */
554 return 0; 576 return 0;
555} 577}
@@ -557,14 +579,14 @@ recover_from_processor_error(int platform, slidx_table_t *slidx, peidx_table_t *
557/** 579/**
558 * mca_try_to_recover - Try to recover from MCA 580 * mca_try_to_recover - Try to recover from MCA
559 * @rec: pointer to a SAL error record 581 * @rec: pointer to a SAL error record
582 * @sos: pointer to hand off struct between SAL and OS
560 * 583 *
561 * Return value: 584 * Return value:
562 * 1 on Success / 0 on Failure 585 * 1 on Success / 0 on Failure
563 */ 586 */
564 587
565static int 588static int
566mca_try_to_recover(void *rec, 589mca_try_to_recover(void *rec, struct ia64_sal_os_state *sos)
567 struct ia64_sal_os_state *sos)
568{ 590{
569 int platform_err; 591 int platform_err;
570 int n_proc_err; 592 int n_proc_err;
@@ -588,7 +610,8 @@ mca_try_to_recover(void *rec,
588 } 610 }
589 611
590 /* Make index of processor error section */ 612 /* Make index of processor error section */
591 mca_make_peidx((sal_log_processor_info_t*)slidx_first_entry(&slidx.proc_err)->hdr, &peidx); 613 mca_make_peidx((sal_log_processor_info_t*)
614 slidx_first_entry(&slidx.proc_err)->hdr, &peidx);
592 615
593 /* Extract Processor BUS_CHECK[0] */ 616 /* Extract Processor BUS_CHECK[0] */
594 *((u64*)&pbci) = peidx_check_info(&peidx, bus_check, 0); 617 *((u64*)&pbci) = peidx_check_info(&peidx, bus_check, 0);
@@ -598,7 +621,8 @@ mca_try_to_recover(void *rec,
598 return 0; 621 return 0;
599 622
600 /* Try to recover a processor error */ 623 /* Try to recover a processor error */
601 return recover_from_processor_error(platform_err, &slidx, &peidx, &pbci, sos); 624 return recover_from_processor_error(platform_err, &slidx, &peidx,
625 &pbci, sos);
602} 626}
603 627
604/* 628/*
@@ -611,7 +635,7 @@ int __init mca_external_handler_init(void)
611 return -ENOMEM; 635 return -ENOMEM;
612 636
613 /* register external mca handlers */ 637 /* register external mca handlers */
614 if (ia64_reg_MCA_extension(mca_try_to_recover)){ 638 if (ia64_reg_MCA_extension(mca_try_to_recover)) {
615 printk(KERN_ERR "ia64_reg_MCA_extension failed.\n"); 639 printk(KERN_ERR "ia64_reg_MCA_extension failed.\n");
616 kfree(slidx_pool.buffer); 640 kfree(slidx_pool.buffer);
617 return -EFAULT; 641 return -EFAULT;
diff --git a/arch/ia64/kernel/mca_drv.h b/arch/ia64/kernel/mca_drv.h
index 0227b761f2c4..e2f6fa1e0ef6 100644
--- a/arch/ia64/kernel/mca_drv.h
+++ b/arch/ia64/kernel/mca_drv.h
@@ -6,7 +6,7 @@
6 * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) 6 * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com)
7 */ 7 */
8/* 8/*
9 * Processor error section: 9 * Processor error section:
10 * 10 *
11 * +-sal_log_processor_info_t *info-------------+ 11 * +-sal_log_processor_info_t *info-------------+
12 * | sal_log_section_hdr_t header; | 12 * | sal_log_section_hdr_t header; |
diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S
index 2d7e0217638d..3f298ee4d00c 100644
--- a/arch/ia64/kernel/mca_drv_asm.S
+++ b/arch/ia64/kernel/mca_drv_asm.S
@@ -13,45 +13,45 @@
13#include <asm/ptrace.h> 13#include <asm/ptrace.h>
14 14
15GLOBAL_ENTRY(mca_handler_bhhook) 15GLOBAL_ENTRY(mca_handler_bhhook)
16 invala // clear RSE ? 16 invala // clear RSE ?
17 ;; // 17 ;;
18 cover // 18 cover
19 ;; // 19 ;;
20 clrrrb // 20 clrrrb
21 ;; 21 ;;
22 alloc r16=ar.pfs,0,2,1,0 // make a new frame 22 alloc r16=ar.pfs,0,2,1,0 // make a new frame
23 ;; 23 ;;
24 mov ar.rsc=0 24 mov ar.rsc=0
25 ;; 25 ;;
26 mov r13=IA64_KR(CURRENT) // current task pointer 26 mov r13=IA64_KR(CURRENT) // current task pointer
27 ;; 27 ;;
28 mov r2=r13 28 mov r2=r13
29 ;; 29 ;;
30 addl r22=IA64_RBS_OFFSET,r2 30 addl r22=IA64_RBS_OFFSET,r2
31 ;; 31 ;;
32 mov ar.bspstore=r22 32 mov ar.bspstore=r22
33 ;; 33 ;;
34 addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2 34 addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2
35 ;; 35 ;;
36 adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13 36 adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13
37 ;; 37 ;;
38 st1 [r2]=r0 // clear current->thread.on_ustack flag 38 st1 [r2]=r0 // clear current->thread.on_ustack flag
39 mov loc0=r16 39 mov loc0=r16
40 movl loc1=mca_handler_bh // recovery C function 40 movl loc1=mca_handler_bh // recovery C function
41 ;; 41 ;;
42 mov out0=r8 // poisoned address 42 mov out0=r8 // poisoned address
43 mov b6=loc1 43 mov b6=loc1
44 ;; 44 ;;
45 mov loc1=rp 45 mov loc1=rp
46 ;; 46 ;;
47 ssm psr.i 47 ssm psr.i
48 ;; 48 ;;
49 br.call.sptk.many rp=b6 // does not return ... 49 br.call.sptk.many rp=b6 // does not return ...
50 ;; 50 ;;
51 mov ar.pfs=loc0 51 mov ar.pfs=loc0
52 mov rp=loc1 52 mov rp=loc1
53 ;; 53 ;;
54 mov r8=r0 54 mov r8=r0
55 br.ret.sptk.many rp 55 br.ret.sptk.many rp
56 ;; 56 ;;
57END(mca_handler_bhhook) 57END(mca_handler_bhhook)