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-rw-r--r--arch/ppc64/kernel/eeh.c55
-rw-r--r--arch/ppc64/kernel/iommu.c3
-rw-r--r--arch/ppc64/kernel/maple_pci.c4
-rw-r--r--arch/ppc64/kernel/pSeries_iommu.c72
-rw-r--r--arch/ppc64/kernel/pci.c6
-rw-r--r--arch/ppc64/kernel/pci.h1
-rw-r--r--arch/ppc64/kernel/pci_dn.c47
-rw-r--r--arch/ppc64/kernel/pci_iommu.c2
-rw-r--r--arch/ppc64/kernel/pmac_feature.c8
-rw-r--r--arch/ppc64/kernel/pmac_pci.c6
-rw-r--r--arch/ppc64/kernel/prom.c1
-rw-r--r--arch/ppc64/kernel/rtas_pci.c39
-rw-r--r--arch/ppc64/kernel/sys_ppc32.c4
-rw-r--r--arch/ppc64/kernel/u3_iommu.c4
14 files changed, 151 insertions, 101 deletions
diff --git a/arch/ppc64/kernel/eeh.c b/arch/ppc64/kernel/eeh.c
index 4c857a6516fc..ba93fd731222 100644
--- a/arch/ppc64/kernel/eeh.c
+++ b/arch/ppc64/kernel/eeh.c
@@ -254,6 +254,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
254static void __pci_addr_cache_insert_device(struct pci_dev *dev) 254static void __pci_addr_cache_insert_device(struct pci_dev *dev)
255{ 255{
256 struct device_node *dn; 256 struct device_node *dn;
257 struct pci_dn *pdn;
257 int i; 258 int i;
258 int inserted = 0; 259 int inserted = 0;
259 260
@@ -265,8 +266,9 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
265 } 266 }
266 267
267 /* Skip any devices for which EEH is not enabled. */ 268 /* Skip any devices for which EEH is not enabled. */
268 if (!(dn->eeh_mode & EEH_MODE_SUPPORTED) || 269 pdn = dn->data;
269 dn->eeh_mode & EEH_MODE_NOCHECK) { 270 if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
271 pdn->eeh_mode & EEH_MODE_NOCHECK) {
270#ifdef DEBUG 272#ifdef DEBUG
271 printk(KERN_INFO "PCI: skip building address cache for=%s\n", 273 printk(KERN_INFO "PCI: skip building address cache for=%s\n",
272 pci_name(dev)); 274 pci_name(dev));
@@ -415,6 +417,7 @@ int eeh_unregister_notifier(struct notifier_block *nb)
415static int read_slot_reset_state(struct device_node *dn, int rets[]) 417static int read_slot_reset_state(struct device_node *dn, int rets[])
416{ 418{
417 int token, outputs; 419 int token, outputs;
420 struct pci_dn *pdn = dn->data;
418 421
419 if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) { 422 if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) {
420 token = ibm_read_slot_reset_state2; 423 token = ibm_read_slot_reset_state2;
@@ -424,8 +427,8 @@ static int read_slot_reset_state(struct device_node *dn, int rets[])
424 outputs = 3; 427 outputs = 3;
425 } 428 }
426 429
427 return rtas_call(token, 3, outputs, rets, dn->eeh_config_addr, 430 return rtas_call(token, 3, outputs, rets, pdn->eeh_config_addr,
428 BUID_HI(dn->phb->buid), BUID_LO(dn->phb->buid)); 431 BUID_HI(pdn->phb->buid), BUID_LO(pdn->phb->buid));
429} 432}
430 433
431/** 434/**
@@ -534,6 +537,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
534 unsigned long flags; 537 unsigned long flags;
535 int rc, reset_state; 538 int rc, reset_state;
536 struct eeh_event *event; 539 struct eeh_event *event;
540 struct pci_dn *pdn;
537 541
538 __get_cpu_var(total_mmio_ffs)++; 542 __get_cpu_var(total_mmio_ffs)++;
539 543
@@ -542,14 +546,15 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
542 546
543 if (!dn) 547 if (!dn)
544 return 0; 548 return 0;
549 pdn = dn->data;
545 550
546 /* Access to IO BARs might get this far and still not want checking. */ 551 /* Access to IO BARs might get this far and still not want checking. */
547 if (!(dn->eeh_mode & EEH_MODE_SUPPORTED) || 552 if (!pdn->eeh_capable || !(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
548 dn->eeh_mode & EEH_MODE_NOCHECK) { 553 pdn->eeh_mode & EEH_MODE_NOCHECK) {
549 return 0; 554 return 0;
550 } 555 }
551 556
552 if (!dn->eeh_config_addr) { 557 if (!pdn->eeh_config_addr) {
553 return 0; 558 return 0;
554 } 559 }
555 560
@@ -557,7 +562,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
557 * If we already have a pending isolation event for this 562 * If we already have a pending isolation event for this
558 * slot, we know it's bad already, we don't need to check... 563 * slot, we know it's bad already, we don't need to check...
559 */ 564 */
560 if (dn->eeh_mode & EEH_MODE_ISOLATED) { 565 if (pdn->eeh_mode & EEH_MODE_ISOLATED) {
561 atomic_inc(&eeh_fail_count); 566 atomic_inc(&eeh_fail_count);
562 if (atomic_read(&eeh_fail_count) >= EEH_MAX_FAILS) { 567 if (atomic_read(&eeh_fail_count) >= EEH_MAX_FAILS) {
563 /* re-read the slot reset state */ 568 /* re-read the slot reset state */
@@ -582,7 +587,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
582 } 587 }
583 588
584 /* prevent repeated reports of this failure */ 589 /* prevent repeated reports of this failure */
585 dn->eeh_mode |= EEH_MODE_ISOLATED; 590 pdn->eeh_mode |= EEH_MODE_ISOLATED;
586 591
587 reset_state = rets[0]; 592 reset_state = rets[0];
588 593
@@ -590,9 +595,9 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
590 memset(slot_errbuf, 0, eeh_error_buf_size); 595 memset(slot_errbuf, 0, eeh_error_buf_size);
591 596
592 rc = rtas_call(ibm_slot_error_detail, 597 rc = rtas_call(ibm_slot_error_detail,
593 8, 1, NULL, dn->eeh_config_addr, 598 8, 1, NULL, pdn->eeh_config_addr,
594 BUID_HI(dn->phb->buid), 599 BUID_HI(pdn->phb->buid),
595 BUID_LO(dn->phb->buid), NULL, 0, 600 BUID_LO(pdn->phb->buid), NULL, 0,
596 virt_to_phys(slot_errbuf), 601 virt_to_phys(slot_errbuf),
597 eeh_error_buf_size, 602 eeh_error_buf_size,
598 1 /* Temporary Error */); 603 1 /* Temporary Error */);
@@ -679,8 +684,9 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
679 u32 *device_id = (u32 *)get_property(dn, "device-id", NULL); 684 u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
680 u32 *regs; 685 u32 *regs;
681 int enable; 686 int enable;
687 struct pci_dn *pdn = dn->data;
682 688
683 dn->eeh_mode = 0; 689 pdn->eeh_mode = 0;
684 690
685 if (status && strcmp(status, "ok") != 0) 691 if (status && strcmp(status, "ok") != 0)
686 return NULL; /* ignore devices with bad status */ 692 return NULL; /* ignore devices with bad status */
@@ -691,7 +697,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
691 697
692 /* There is nothing to check on PCI to ISA bridges */ 698 /* There is nothing to check on PCI to ISA bridges */
693 if (dn->type && !strcmp(dn->type, "isa")) { 699 if (dn->type && !strcmp(dn->type, "isa")) {
694 dn->eeh_mode |= EEH_MODE_NOCHECK; 700 pdn->eeh_mode |= EEH_MODE_NOCHECK;
695 return NULL; 701 return NULL;
696 } 702 }
697 703
@@ -708,7 +714,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
708 enable = 0; 714 enable = 0;
709 715
710 if (!enable) 716 if (!enable)
711 dn->eeh_mode |= EEH_MODE_NOCHECK; 717 pdn->eeh_mode |= EEH_MODE_NOCHECK;
712 718
713 /* Ok... see if this device supports EEH. Some do, some don't, 719 /* Ok... see if this device supports EEH. Some do, some don't,
714 * and the only way to find out is to check each and every one. */ 720 * and the only way to find out is to check each and every one. */
@@ -721,8 +727,8 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
721 EEH_ENABLE); 727 EEH_ENABLE);
722 if (ret == 0) { 728 if (ret == 0) {
723 eeh_subsystem_enabled = 1; 729 eeh_subsystem_enabled = 1;
724 dn->eeh_mode |= EEH_MODE_SUPPORTED; 730 pdn->eeh_mode |= EEH_MODE_SUPPORTED;
725 dn->eeh_config_addr = regs[0]; 731 pdn->eeh_config_addr = regs[0];
726#ifdef DEBUG 732#ifdef DEBUG
727 printk(KERN_DEBUG "EEH: %s: eeh enabled\n", dn->full_name); 733 printk(KERN_DEBUG "EEH: %s: eeh enabled\n", dn->full_name);
728#endif 734#endif
@@ -730,10 +736,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
730 736
731 /* This device doesn't support EEH, but it may have an 737 /* This device doesn't support EEH, but it may have an
732 * EEH parent, in which case we mark it as supported. */ 738 * EEH parent, in which case we mark it as supported. */
733 if (dn->parent && (dn->parent->eeh_mode & EEH_MODE_SUPPORTED)) { 739 if (dn->parent && dn->parent->data
740 && (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) {
734 /* Parent supports EEH. */ 741 /* Parent supports EEH. */
735 dn->eeh_mode |= EEH_MODE_SUPPORTED; 742 pdn->eeh_mode |= EEH_MODE_SUPPORTED;
736 dn->eeh_config_addr = dn->parent->eeh_config_addr; 743 pdn->eeh_config_addr = PCI_DN(dn->parent)->eeh_config_addr;
737 return NULL; 744 return NULL;
738 } 745 }
739 } 746 }
@@ -790,11 +797,13 @@ void __init eeh_init(void)
790 for (phb = of_find_node_by_name(NULL, "pci"); phb; 797 for (phb = of_find_node_by_name(NULL, "pci"); phb;
791 phb = of_find_node_by_name(phb, "pci")) { 798 phb = of_find_node_by_name(phb, "pci")) {
792 unsigned long buid; 799 unsigned long buid;
800 struct pci_dn *pci;
793 801
794 buid = get_phb_buid(phb); 802 buid = get_phb_buid(phb);
795 if (buid == 0) 803 if (buid == 0 || phb->data == NULL)
796 continue; 804 continue;
797 805
806 pci = phb->data;
798 info.buid_lo = BUID_LO(buid); 807 info.buid_lo = BUID_LO(buid);
799 info.buid_hi = BUID_HI(buid); 808 info.buid_hi = BUID_HI(buid);
800 traverse_pci_devices(phb, early_enable_eeh, &info); 809 traverse_pci_devices(phb, early_enable_eeh, &info);
@@ -823,9 +832,9 @@ void eeh_add_device_early(struct device_node *dn)
823 struct pci_controller *phb; 832 struct pci_controller *phb;
824 struct eeh_early_enable_info info; 833 struct eeh_early_enable_info info;
825 834
826 if (!dn) 835 if (!dn || !dn->data)
827 return; 836 return;
828 phb = dn->phb; 837 phb = PCI_DN(dn)->phb;
829 if (NULL == phb || 0 == phb->buid) { 838 if (NULL == phb || 0 == phb->buid) {
830 printk(KERN_WARNING "EEH: Expected buid but found none\n"); 839 printk(KERN_WARNING "EEH: Expected buid but found none\n");
831 return; 840 return;
diff --git a/arch/ppc64/kernel/iommu.c b/arch/ppc64/kernel/iommu.c
index 845eebd1e28d..9032b6bfe036 100644
--- a/arch/ppc64/kernel/iommu.c
+++ b/arch/ppc64/kernel/iommu.c
@@ -438,7 +438,8 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl)
438 438
439void iommu_free_table(struct device_node *dn) 439void iommu_free_table(struct device_node *dn)
440{ 440{
441 struct iommu_table *tbl = dn->iommu_table; 441 struct pci_dn *pdn = dn->data;
442 struct iommu_table *tbl = pdn->iommu_table;
442 unsigned long bitmap_sz, i; 443 unsigned long bitmap_sz, i;
443 unsigned int order; 444 unsigned int order;
444 445
diff --git a/arch/ppc64/kernel/maple_pci.c b/arch/ppc64/kernel/maple_pci.c
index 53993999b265..5a8b4d8c2dd6 100644
--- a/arch/ppc64/kernel/maple_pci.c
+++ b/arch/ppc64/kernel/maple_pci.c
@@ -447,9 +447,9 @@ void __init maple_pci_init(void)
447 */ 447 */
448 if (u3_agp) { 448 if (u3_agp) {
449 struct device_node *np = u3_agp->arch_data; 449 struct device_node *np = u3_agp->arch_data;
450 np->busno = 0xf0; 450 PCI_DN(np)->busno = 0xf0;
451 for (np = np->child; np; np = np->sibling) 451 for (np = np->child; np; np = np->sibling)
452 np->busno = 0xf0; 452 PCI_DN(np)->busno = 0xf0;
453 } 453 }
454 454
455 /* Tell pci.c to use the common resource allocation mecanism */ 455 /* Tell pci.c to use the common resource allocation mecanism */
diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c
index 9d5e1e7fc389..f0fd7fbd6531 100644
--- a/arch/ppc64/kernel/pSeries_iommu.c
+++ b/arch/ppc64/kernel/pSeries_iommu.c
@@ -295,7 +295,7 @@ static void iommu_table_setparms_lpar(struct pci_controller *phb,
295 struct iommu_table *tbl, 295 struct iommu_table *tbl,
296 unsigned int *dma_window) 296 unsigned int *dma_window)
297{ 297{
298 tbl->it_busno = dn->bussubno; 298 tbl->it_busno = PCI_DN(dn)->bussubno;
299 299
300 /* TODO: Parse field size properties properly. */ 300 /* TODO: Parse field size properties properly. */
301 tbl->it_size = (((unsigned long)dma_window[4] << 32) | 301 tbl->it_size = (((unsigned long)dma_window[4] << 32) |
@@ -311,6 +311,7 @@ static void iommu_table_setparms_lpar(struct pci_controller *phb,
311static void iommu_bus_setup_pSeries(struct pci_bus *bus) 311static void iommu_bus_setup_pSeries(struct pci_bus *bus)
312{ 312{
313 struct device_node *dn, *pdn; 313 struct device_node *dn, *pdn;
314 struct pci_dn *pci;
314 struct iommu_table *tbl; 315 struct iommu_table *tbl;
315 316
316 DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self); 317 DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self);
@@ -325,6 +326,7 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
325 */ 326 */
326 327
327 dn = pci_bus_to_OF_node(bus); 328 dn = pci_bus_to_OF_node(bus);
329 pci = dn->data;
328 330
329 if (!bus->self) { 331 if (!bus->self) {
330 /* Root bus */ 332 /* Root bus */
@@ -341,18 +343,18 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
341 * alltogether. This leaves 768MB for the window. 343 * alltogether. This leaves 768MB for the window.
342 */ 344 */
343 DBG("PHB has io-hole, reserving 256MB\n"); 345 DBG("PHB has io-hole, reserving 256MB\n");
344 dn->phb->dma_window_size = 3 << 28; 346 pci->phb->dma_window_size = 3 << 28;
345 dn->phb->dma_window_base_cur = 1 << 28; 347 pci->phb->dma_window_base_cur = 1 << 28;
346 } else { 348 } else {
347 /* 1GB window by default */ 349 /* 1GB window by default */
348 dn->phb->dma_window_size = 1 << 30; 350 pci->phb->dma_window_size = 1 << 30;
349 dn->phb->dma_window_base_cur = 0; 351 pci->phb->dma_window_base_cur = 0;
350 } 352 }
351 353
352 tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL); 354 tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
353 355
354 iommu_table_setparms(dn->phb, dn, tbl); 356 iommu_table_setparms(pci->phb, dn, tbl);
355 dn->iommu_table = iommu_init_table(tbl); 357 pci->iommu_table = iommu_init_table(tbl);
356 } else { 358 } else {
357 /* Do a 128MB table at root. This is used for the IDE 359 /* Do a 128MB table at root. This is used for the IDE
358 * controller on some SMP-mode POWER4 machines. It 360 * controller on some SMP-mode POWER4 machines. It
@@ -363,16 +365,16 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
363 * Allocate at offset 128MB to avoid having to deal 365 * Allocate at offset 128MB to avoid having to deal
364 * with ISA holes; 128MB table for IDE is plenty. 366 * with ISA holes; 128MB table for IDE is plenty.
365 */ 367 */
366 dn->phb->dma_window_size = 1 << 27; 368 pci->phb->dma_window_size = 1 << 27;
367 dn->phb->dma_window_base_cur = 1 << 27; 369 pci->phb->dma_window_base_cur = 1 << 27;
368 370
369 tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL); 371 tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
370 372
371 iommu_table_setparms(dn->phb, dn, tbl); 373 iommu_table_setparms(pci->phb, dn, tbl);
372 dn->iommu_table = iommu_init_table(tbl); 374 pci->iommu_table = iommu_init_table(tbl);
373 375
374 /* All child buses have 256MB tables */ 376 /* All child buses have 256MB tables */
375 dn->phb->dma_window_size = 1 << 28; 377 pci->phb->dma_window_size = 1 << 28;
376 } 378 }
377 } else { 379 } else {
378 pdn = pci_bus_to_OF_node(bus->parent); 380 pdn = pci_bus_to_OF_node(bus->parent);
@@ -386,12 +388,12 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
386 388
387 tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL); 389 tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
388 390
389 iommu_table_setparms(dn->phb, dn, tbl); 391 iommu_table_setparms(pci->phb, dn, tbl);
390 392
391 dn->iommu_table = iommu_init_table(tbl); 393 pci->iommu_table = iommu_init_table(tbl);
392 } else { 394 } else {
393 /* Lower than first child or under python, use parent table */ 395 /* Lower than first child or under python, use parent table */
394 dn->iommu_table = pdn->iommu_table; 396 pci->iommu_table = PCI_DN(pdn)->iommu_table;
395 } 397 }
396 } 398 }
397} 399}
@@ -401,6 +403,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
401{ 403{
402 struct iommu_table *tbl; 404 struct iommu_table *tbl;
403 struct device_node *dn, *pdn; 405 struct device_node *dn, *pdn;
406 struct pci_dn *ppci;
404 unsigned int *dma_window = NULL; 407 unsigned int *dma_window = NULL;
405 408
406 DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self); 409 DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
@@ -419,22 +422,24 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
419 return; 422 return;
420 } 423 }
421 424
422 if (!pdn->iommu_table) { 425 ppci = pdn->data;
426 if (!ppci->iommu_table) {
423 /* Bussubno hasn't been copied yet. 427 /* Bussubno hasn't been copied yet.
424 * Do it now because iommu_table_setparms_lpar needs it. 428 * Do it now because iommu_table_setparms_lpar needs it.
425 */ 429 */
426 pdn->bussubno = bus->number; 430
431 ppci->bussubno = bus->number;
427 432
428 tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table), 433 tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
429 GFP_KERNEL); 434 GFP_KERNEL);
430 435
431 iommu_table_setparms_lpar(pdn->phb, pdn, tbl, dma_window); 436 iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
432 437
433 pdn->iommu_table = iommu_init_table(tbl); 438 ppci->iommu_table = iommu_init_table(tbl);
434 } 439 }
435 440
436 if (pdn != dn) 441 if (pdn != dn)
437 dn->iommu_table = pdn->iommu_table; 442 PCI_DN(dn)->iommu_table = ppci->iommu_table;
438} 443}
439 444
440 445
@@ -449,11 +454,11 @@ static void iommu_dev_setup_pSeries(struct pci_dev *dev)
449 */ 454 */
450 mydn = dn = pci_device_to_OF_node(dev); 455 mydn = dn = pci_device_to_OF_node(dev);
451 456
452 while (dn && dn->iommu_table == NULL) 457 while (dn && dn->data && PCI_DN(dn)->iommu_table == NULL)
453 dn = dn->parent; 458 dn = dn->parent;
454 459
455 if (dn) { 460 if (dn && dn->data) {
456 mydn->iommu_table = dn->iommu_table; 461 PCI_DN(mydn)->iommu_table = PCI_DN(dn)->iommu_table;
457 } else { 462 } else {
458 DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, dev->pretty_name); 463 DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, dev->pretty_name);
459 } 464 }
@@ -463,10 +468,11 @@ static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long acti
463{ 468{
464 int err = NOTIFY_OK; 469 int err = NOTIFY_OK;
465 struct device_node *np = node; 470 struct device_node *np = node;
471 struct pci_dn *pci = np->data;
466 472
467 switch (action) { 473 switch (action) {
468 case PSERIES_RECONFIG_REMOVE: 474 case PSERIES_RECONFIG_REMOVE:
469 if (np->iommu_table && 475 if (pci->iommu_table &&
470 get_property(np, "ibm,dma-window", NULL)) 476 get_property(np, "ibm,dma-window", NULL))
471 iommu_free_table(np); 477 iommu_free_table(np);
472 break; 478 break;
@@ -486,6 +492,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
486 struct device_node *pdn, *dn; 492 struct device_node *pdn, *dn;
487 struct iommu_table *tbl; 493 struct iommu_table *tbl;
488 int *dma_window = NULL; 494 int *dma_window = NULL;
495 struct pci_dn *pci;
489 496
490 DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, dev->pretty_name); 497 DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, dev->pretty_name);
491 498
@@ -497,8 +504,10 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
497 */ 504 */
498 dn = pci_device_to_OF_node(dev); 505 dn = pci_device_to_OF_node(dev);
499 506
500 for (pdn = dn; pdn && !pdn->iommu_table; pdn = pdn->parent) { 507 for (pdn = dn; pdn && pdn->data && !PCI_DN(pdn)->iommu_table;
501 dma_window = (unsigned int *)get_property(pdn, "ibm,dma-window", NULL); 508 pdn = pdn->parent) {
509 dma_window = (unsigned int *)
510 get_property(pdn, "ibm,dma-window", NULL);
502 if (dma_window) 511 if (dma_window)
503 break; 512 break;
504 } 513 }
@@ -515,20 +524,21 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
515 DBG("Found DMA window, allocating table\n"); 524 DBG("Found DMA window, allocating table\n");
516 } 525 }
517 526
518 if (!pdn->iommu_table) { 527 pci = pdn->data;
528 if (!pci->iommu_table) {
519 /* iommu_table_setparms_lpar needs bussubno. */ 529 /* iommu_table_setparms_lpar needs bussubno. */
520 pdn->bussubno = pdn->phb->bus->number; 530 pci->bussubno = pci->phb->bus->number;
521 531
522 tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table), 532 tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
523 GFP_KERNEL); 533 GFP_KERNEL);
524 534
525 iommu_table_setparms_lpar(pdn->phb, pdn, tbl, dma_window); 535 iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
526 536
527 pdn->iommu_table = iommu_init_table(tbl); 537 pci->iommu_table = iommu_init_table(tbl);
528 } 538 }
529 539
530 if (pdn != dn) 540 if (pdn != dn)
531 dn->iommu_table = pdn->iommu_table; 541 PCI_DN(dn)->iommu_table = pci->iommu_table;
532} 542}
533 543
534static void iommu_bus_setup_null(struct pci_bus *b) { } 544static void iommu_bus_setup_null(struct pci_bus *b) { }
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index b5ca7d8347e2..446b4654883f 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -837,9 +837,11 @@ int pcibios_scan_all_fns(struct pci_bus *bus, int devfn)
837 * device tree. If they are then we need to scan all the 837 * device tree. If they are then we need to scan all the
838 * functions of this slot. 838 * functions of this slot.
839 */ 839 */
840 for (dn = busdn->child; dn; dn = dn->sibling) 840 for (dn = busdn->child; dn; dn = dn->sibling) {
841 if ((dn->devfn >> 3) == (devfn >> 3)) 841 struct pci_dn *pdn = dn->data;
842 if (pdn && (pdn->devfn >> 3) == (devfn >> 3))
842 return 1; 843 return 1;
844 }
843 845
844 return 0; 846 return 0;
845} 847}
diff --git a/arch/ppc64/kernel/pci.h b/arch/ppc64/kernel/pci.h
index 26be78b13af1..5eb2cc320566 100644
--- a/arch/ppc64/kernel/pci.h
+++ b/arch/ppc64/kernel/pci.h
@@ -34,7 +34,6 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
34 34
35void pci_devs_phb_init(void); 35void pci_devs_phb_init(void);
36void pci_devs_phb_init_dynamic(struct pci_controller *phb); 36void pci_devs_phb_init_dynamic(struct pci_controller *phb);
37struct device_node *fetch_dev_dn(struct pci_dev *dev);
38 37
39/* PCI address cache management routines */ 38/* PCI address cache management routines */
40void pci_addr_cache_insert_device(struct pci_dev *dev); 39void pci_addr_cache_insert_device(struct pci_dev *dev);
diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/ppc64/kernel/pci_dn.c
index ec345462afc3..a86389d07d57 100644
--- a/arch/ppc64/kernel/pci_dn.c
+++ b/arch/ppc64/kernel/pci_dn.c
@@ -23,6 +23,8 @@
23#include <linux/pci.h> 23#include <linux/pci.h>
24#include <linux/string.h> 24#include <linux/string.h>
25#include <linux/init.h> 25#include <linux/init.h>
26#include <linux/slab.h>
27#include <linux/bootmem.h>
26 28
27#include <asm/io.h> 29#include <asm/io.h>
28#include <asm/prom.h> 30#include <asm/prom.h>
@@ -40,16 +42,26 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
40 struct pci_controller *phb = data; 42 struct pci_controller *phb = data;
41 int *type = (int *)get_property(dn, "ibm,pci-config-space-type", NULL); 43 int *type = (int *)get_property(dn, "ibm,pci-config-space-type", NULL);
42 u32 *regs; 44 u32 *regs;
43 45 struct pci_dn *pdn;
44 dn->phb = phb; 46
47 if (phb->is_dynamic)
48 pdn = kmalloc(sizeof(*pdn), GFP_KERNEL);
49 else
50 pdn = alloc_bootmem(sizeof(*pdn));
51 if (pdn == NULL)
52 return NULL;
53 memset(pdn, 0, sizeof(*pdn));
54 dn->data = pdn;
55 pdn->node = dn;
56 pdn->phb = phb;
45 regs = (u32 *)get_property(dn, "reg", NULL); 57 regs = (u32 *)get_property(dn, "reg", NULL);
46 if (regs) { 58 if (regs) {
47 /* First register entry is addr (00BBSS00) */ 59 /* First register entry is addr (00BBSS00) */
48 dn->busno = (regs[0] >> 16) & 0xff; 60 pdn->busno = (regs[0] >> 16) & 0xff;
49 dn->devfn = (regs[0] >> 8) & 0xff; 61 pdn->devfn = (regs[0] >> 8) & 0xff;
50 } 62 }
51 63
52 dn->pci_ext_config_space = (type && *type == 1); 64 pdn->pci_ext_config_space = (type && *type == 1);
53 return NULL; 65 return NULL;
54} 66}
55 67
@@ -112,10 +124,15 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
112void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb) 124void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
113{ 125{
114 struct device_node * dn = (struct device_node *) phb->arch_data; 126 struct device_node * dn = (struct device_node *) phb->arch_data;
127 struct pci_dn *pdn;
115 128
116 /* PHB nodes themselves must not match */ 129 /* PHB nodes themselves must not match */
117 dn->devfn = dn->busno = -1; 130 update_dn_pci_info(dn, phb);
118 dn->phb = phb; 131 pdn = dn->data;
132 if (pdn) {
133 pdn->devfn = pdn->busno = -1;
134 pdn->phb = phb;
135 }
119 136
120 /* Update dn->phb ptrs for new phb and children devices */ 137 /* Update dn->phb ptrs for new phb and children devices */
121 traverse_pci_devices(dn, update_dn_pci_info, phb); 138 traverse_pci_devices(dn, update_dn_pci_info, phb);
@@ -123,14 +140,17 @@ void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
123 140
124/* 141/*
125 * Traversal func that looks for a <busno,devfcn> value. 142 * Traversal func that looks for a <busno,devfcn> value.
126 * If found, the device_node is returned (thus terminating the traversal). 143 * If found, the pci_dn is returned (thus terminating the traversal).
127 */ 144 */
128static void *is_devfn_node(struct device_node *dn, void *data) 145static void *is_devfn_node(struct device_node *dn, void *data)
129{ 146{
130 int busno = ((unsigned long)data >> 8) & 0xff; 147 int busno = ((unsigned long)data >> 8) & 0xff;
131 int devfn = ((unsigned long)data) & 0xff; 148 int devfn = ((unsigned long)data) & 0xff;
149 struct pci_dn *pci = dn->data;
132 150
133 return ((devfn == dn->devfn) && (busno == dn->busno)) ? dn : NULL; 151 if (pci && (devfn == pci->devfn) && (busno == pci->busno))
152 return dn;
153 return NULL;
134} 154}
135 155
136/* 156/*
@@ -149,13 +169,10 @@ static void *is_devfn_node(struct device_node *dn, void *data)
149struct device_node *fetch_dev_dn(struct pci_dev *dev) 169struct device_node *fetch_dev_dn(struct pci_dev *dev)
150{ 170{
151 struct device_node *orig_dn = dev->sysdata; 171 struct device_node *orig_dn = dev->sysdata;
152 struct pci_controller *phb = orig_dn->phb; /* assume same phb as orig_dn */
153 struct device_node *phb_dn;
154 struct device_node *dn; 172 struct device_node *dn;
155 unsigned long searchval = (dev->bus->number << 8) | dev->devfn; 173 unsigned long searchval = (dev->bus->number << 8) | dev->devfn;
156 174
157 phb_dn = phb->arch_data; 175 dn = traverse_pci_devices(orig_dn, is_devfn_node, (void *)searchval);
158 dn = traverse_pci_devices(phb_dn, is_devfn_node, (void *)searchval);
159 if (dn) 176 if (dn)
160 dev->sysdata = dn; 177 dev->sysdata = dn;
161 return dn; 178 return dn;
@@ -165,11 +182,13 @@ EXPORT_SYMBOL(fetch_dev_dn);
165static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node) 182static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
166{ 183{
167 struct device_node *np = node; 184 struct device_node *np = node;
185 struct pci_dn *pci;
168 int err = NOTIFY_OK; 186 int err = NOTIFY_OK;
169 187
170 switch (action) { 188 switch (action) {
171 case PSERIES_RECONFIG_ADD: 189 case PSERIES_RECONFIG_ADD:
172 update_dn_pci_info(np, np->parent->phb); 190 pci = np->parent->data;
191 update_dn_pci_info(np, pci->phb);
173 break; 192 break;
174 default: 193 default:
175 err = NOTIFY_DONE; 194 err = NOTIFY_DONE;
diff --git a/arch/ppc64/kernel/pci_iommu.c b/arch/ppc64/kernel/pci_iommu.c
index ef0a62b916be..14647e09c9cd 100644
--- a/arch/ppc64/kernel/pci_iommu.c
+++ b/arch/ppc64/kernel/pci_iommu.c
@@ -66,7 +66,7 @@ static inline struct iommu_table *devnode_table(struct device *dev)
66#endif /* CONFIG_PPC_ISERIES */ 66#endif /* CONFIG_PPC_ISERIES */
67 67
68#ifdef CONFIG_PPC_MULTIPLATFORM 68#ifdef CONFIG_PPC_MULTIPLATFORM
69 return PCI_GET_DN(pdev)->iommu_table; 69 return PCI_DN(PCI_GET_DN(pdev))->iommu_table;
70#endif /* CONFIG_PPC_MULTIPLATFORM */ 70#endif /* CONFIG_PPC_MULTIPLATFORM */
71} 71}
72 72
diff --git a/arch/ppc64/kernel/pmac_feature.c b/arch/ppc64/kernel/pmac_feature.c
index 98ed2bccab1a..eb4e6c3f694d 100644
--- a/arch/ppc64/kernel/pmac_feature.c
+++ b/arch/ppc64/kernel/pmac_feature.c
@@ -674,6 +674,7 @@ void __init pmac_check_ht_link(void)
674#if 0 /* Disabled for now */ 674#if 0 /* Disabled for now */
675 u32 ufreq, freq, ucfg, cfg; 675 u32 ufreq, freq, ucfg, cfg;
676 struct device_node *pcix_node; 676 struct device_node *pcix_node;
677 struct pci_dn *pdn;
677 u8 px_bus, px_devfn; 678 u8 px_bus, px_devfn;
678 struct pci_controller *px_hose; 679 struct pci_controller *px_hose;
679 680
@@ -687,9 +688,10 @@ void __init pmac_check_ht_link(void)
687 printk("No PCI-X bridge found\n"); 688 printk("No PCI-X bridge found\n");
688 return; 689 return;
689 } 690 }
690 px_hose = pcix_node->phb; 691 pdn = pcix_node->data;
691 px_bus = pcix_node->busno; 692 px_hose = pdn->phb;
692 px_devfn = pcix_node->devfn; 693 px_bus = pdn->busno;
694 px_devfn = pdn->devfn;
693 695
694 early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg); 696 early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
695 early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq); 697 early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
diff --git a/arch/ppc64/kernel/pmac_pci.c b/arch/ppc64/kernel/pmac_pci.c
index 71fe911ad183..d37bff2d7d40 100644
--- a/arch/ppc64/kernel/pmac_pci.c
+++ b/arch/ppc64/kernel/pmac_pci.c
@@ -242,7 +242,7 @@ static int u3_ht_skip_device(struct pci_controller *hose,
242 else 242 else
243 busdn = hose->arch_data; 243 busdn = hose->arch_data;
244 for (dn = busdn->child; dn; dn = dn->sibling) 244 for (dn = busdn->child; dn; dn = dn->sibling)
245 if (dn->devfn == devfn) 245 if (dn->data && PCI_DN(dn)->devfn == devfn)
246 break; 246 break;
247 if (dn == NULL) 247 if (dn == NULL)
248 return -1; 248 return -1;
@@ -746,9 +746,9 @@ void __init pmac_pci_init(void)
746 */ 746 */
747 if (u3_agp) { 747 if (u3_agp) {
748 struct device_node *np = u3_agp->arch_data; 748 struct device_node *np = u3_agp->arch_data;
749 np->busno = 0xf0; 749 PCI_DN(np)->busno = 0xf0;
750 for (np = np->child; np; np = np->sibling) 750 for (np = np->child; np; np = np->sibling)
751 np->busno = 0xf0; 751 PCI_DN(np)->busno = 0xf0;
752 } 752 }
753 753
754 pmac_check_ht_link(); 754 pmac_check_ht_link();
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index 6ad5a8467f87..7035deb6de92 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -1733,6 +1733,7 @@ static void of_node_release(struct kref *kref)
1733 kfree(node->intrs); 1733 kfree(node->intrs);
1734 kfree(node->addrs); 1734 kfree(node->addrs);
1735 kfree(node->full_name); 1735 kfree(node->full_name);
1736 kfree(node->data);
1736 kfree(node); 1737 kfree(node);
1737} 1738}
1738 1739
diff --git a/arch/ppc64/kernel/rtas_pci.c b/arch/ppc64/kernel/rtas_pci.c
index 1dccadaddd1d..4a9719b48abe 100644
--- a/arch/ppc64/kernel/rtas_pci.c
+++ b/arch/ppc64/kernel/rtas_pci.c
@@ -48,7 +48,7 @@ static int write_pci_config;
48static int ibm_read_pci_config; 48static int ibm_read_pci_config;
49static int ibm_write_pci_config; 49static int ibm_write_pci_config;
50 50
51static int config_access_valid(struct device_node *dn, int where) 51static int config_access_valid(struct pci_dn *dn, int where)
52{ 52{
53 if (where < 256) 53 if (where < 256)
54 return 1; 54 return 1;
@@ -78,15 +78,17 @@ static int rtas_read_config(struct device_node *dn, int where, int size, u32 *va
78 int returnval = -1; 78 int returnval = -1;
79 unsigned long buid, addr; 79 unsigned long buid, addr;
80 int ret; 80 int ret;
81 struct pci_dn *pdn;
81 82
82 if (!dn) 83 if (!dn || !dn->data)
83 return PCIBIOS_DEVICE_NOT_FOUND; 84 return PCIBIOS_DEVICE_NOT_FOUND;
84 if (!config_access_valid(dn, where)) 85 pdn = dn->data;
86 if (!config_access_valid(pdn, where))
85 return PCIBIOS_BAD_REGISTER_NUMBER; 87 return PCIBIOS_BAD_REGISTER_NUMBER;
86 88
87 addr = ((where & 0xf00) << 20) | (dn->busno << 16) | 89 addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
88 (dn->devfn << 8) | (where & 0xff); 90 (pdn->devfn << 8) | (where & 0xff);
89 buid = dn->phb->buid; 91 buid = pdn->phb->buid;
90 if (buid) { 92 if (buid) {
91 ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval, 93 ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
92 addr, buid >> 32, buid & 0xffffffff, size); 94 addr, buid >> 32, buid & 0xffffffff, size);
@@ -98,8 +100,8 @@ static int rtas_read_config(struct device_node *dn, int where, int size, u32 *va
98 if (ret) 100 if (ret)
99 return PCIBIOS_DEVICE_NOT_FOUND; 101 return PCIBIOS_DEVICE_NOT_FOUND;
100 102
101 if (returnval == EEH_IO_ERROR_VALUE(size) 103 if (returnval == EEH_IO_ERROR_VALUE(size) &&
102 && eeh_dn_check_failure (dn, NULL)) 104 eeh_dn_check_failure (dn, NULL))
103 return PCIBIOS_DEVICE_NOT_FOUND; 105 return PCIBIOS_DEVICE_NOT_FOUND;
104 106
105 return PCIBIOS_SUCCESSFUL; 107 return PCIBIOS_SUCCESSFUL;
@@ -118,24 +120,28 @@ static int rtas_pci_read_config(struct pci_bus *bus,
118 120
119 /* Search only direct children of the bus */ 121 /* Search only direct children of the bus */
120 for (dn = busdn->child; dn; dn = dn->sibling) 122 for (dn = busdn->child; dn; dn = dn->sibling)
121 if (dn->devfn == devfn && of_device_available(dn)) 123 if (dn->data && PCI_DN(dn)->devfn == devfn
124 && of_device_available(dn))
122 return rtas_read_config(dn, where, size, val); 125 return rtas_read_config(dn, where, size, val);
126
123 return PCIBIOS_DEVICE_NOT_FOUND; 127 return PCIBIOS_DEVICE_NOT_FOUND;
124} 128}
125 129
126static int rtas_write_config(struct device_node *dn, int where, int size, u32 val) 130int rtas_write_config(struct device_node *dn, int where, int size, u32 val)
127{ 131{
128 unsigned long buid, addr; 132 unsigned long buid, addr;
129 int ret; 133 int ret;
134 struct pci_dn *pdn;
130 135
131 if (!dn) 136 if (!dn || !dn->data)
132 return PCIBIOS_DEVICE_NOT_FOUND; 137 return PCIBIOS_DEVICE_NOT_FOUND;
133 if (!config_access_valid(dn, where)) 138 pdn = dn->data;
139 if (!config_access_valid(pdn, where))
134 return PCIBIOS_BAD_REGISTER_NUMBER; 140 return PCIBIOS_BAD_REGISTER_NUMBER;
135 141
136 addr = ((where & 0xf00) << 20) | (dn->busno << 16) | 142 addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
137 (dn->devfn << 8) | (where & 0xff); 143 (pdn->devfn << 8) | (where & 0xff);
138 buid = dn->phb->buid; 144 buid = pdn->phb->buid;
139 if (buid) { 145 if (buid) {
140 ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr, buid >> 32, buid & 0xffffffff, size, (ulong) val); 146 ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr, buid >> 32, buid & 0xffffffff, size, (ulong) val);
141 } else { 147 } else {
@@ -161,7 +167,8 @@ static int rtas_pci_write_config(struct pci_bus *bus,
161 167
162 /* Search only direct children of the bus */ 168 /* Search only direct children of the bus */
163 for (dn = busdn->child; dn; dn = dn->sibling) 169 for (dn = busdn->child; dn; dn = dn->sibling)
164 if (dn->devfn == devfn && of_device_available(dn)) 170 if (dn->data && PCI_DN(dn)->devfn == devfn
171 && of_device_available(dn))
165 return rtas_write_config(dn, where, size, val); 172 return rtas_write_config(dn, where, size, val);
166 return PCIBIOS_DEVICE_NOT_FOUND; 173 return PCIBIOS_DEVICE_NOT_FOUND;
167} 174}
diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c
index 214914a95a50..57a6db7d7c9c 100644
--- a/arch/ppc64/kernel/sys_ppc32.c
+++ b/arch/ppc64/kernel/sys_ppc32.c
@@ -747,8 +747,8 @@ asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
747 if (bus == NULL || bus->sysdata == NULL) 747 if (bus == NULL || bus->sysdata == NULL)
748 return -ENODEV; 748 return -ENODEV;
749 749
750 hose_node = (struct device_node *)bus->sysdata; 750 hose_node = bus->sysdata;
751 hose = hose_node->phb; 751 hose = PCI_DN(hose_node)->phb;
752 752
753 switch (which) { 753 switch (which) {
754 case IOBASE_BRIDGE_NUMBER: 754 case IOBASE_BRIDGE_NUMBER:
diff --git a/arch/ppc64/kernel/u3_iommu.c b/arch/ppc64/kernel/u3_iommu.c
index b6e3bca4102d..41ea09cb9ac7 100644
--- a/arch/ppc64/kernel/u3_iommu.c
+++ b/arch/ppc64/kernel/u3_iommu.c
@@ -276,7 +276,7 @@ static void iommu_dev_setup_u3(struct pci_dev *dev)
276 dn = pci_device_to_OF_node(dev); 276 dn = pci_device_to_OF_node(dev);
277 277
278 if (dn) 278 if (dn)
279 dn->iommu_table = &iommu_table_u3; 279 PCI_DN(dn)->iommu_table = &iommu_table_u3;
280} 280}
281 281
282static void iommu_bus_setup_u3(struct pci_bus *bus) 282static void iommu_bus_setup_u3(struct pci_bus *bus)
@@ -291,7 +291,7 @@ static void iommu_bus_setup_u3(struct pci_bus *bus)
291 dn = pci_bus_to_OF_node(bus); 291 dn = pci_bus_to_OF_node(bus);
292 292
293 if (dn) 293 if (dn)
294 dn->iommu_table = &iommu_table_u3; 294 PCI_DN(dn)->iommu_table = &iommu_table_u3;
295} 295}
296 296
297static void iommu_dev_setup_null(struct pci_dev *dev) { } 297static void iommu_dev_setup_null(struct pci_dev *dev) { }