aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc64/kernel/ebus.c150
-rw-r--r--arch/sparc64/kernel/isa.c101
-rw-r--r--arch/sparc64/kernel/of_device.c194
-rw-r--r--arch/sparc64/kernel/pci.c6
-rw-r--r--arch/sparc64/kernel/pci_common.c291
-rw-r--r--arch/sparc64/kernel/pci_psycho.c161
-rw-r--r--arch/sparc64/kernel/pci_sabre.c158
-rw-r--r--arch/sparc64/kernel/pci_schizo.c311
-rw-r--r--arch/sparc64/kernel/pci_sun4v.c10
-rw-r--r--arch/sparc64/kernel/prom.c757
10 files changed, 1091 insertions, 1048 deletions
diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c
index 98e0a8cbeec..aac014d15ad 100644
--- a/arch/sparc64/kernel/ebus.c
+++ b/arch/sparc64/kernel/ebus.c
@@ -20,6 +20,8 @@
20#include <asm/pbm.h> 20#include <asm/pbm.h>
21#include <asm/ebus.h> 21#include <asm/ebus.h>
22#include <asm/oplib.h> 22#include <asm/oplib.h>
23#include <asm/prom.h>
24#include <asm/of_device.h>
23#include <asm/bpp.h> 25#include <asm/bpp.h>
24#include <asm/irq.h> 26#include <asm/irq.h>
25 27
@@ -279,45 +281,12 @@ static inline void *ebus_alloc(size_t size)
279 return mem; 281 return mem;
280} 282}
281 283
282int __init ebus_intmap_match(struct linux_ebus *ebus, 284static void __init fill_ebus_child(struct device_node *dp,
283 struct linux_prom_registers *reg, 285 struct linux_ebus_child *dev,
284 int *interrupt) 286 int non_standard_regs)
285{
286 struct linux_prom_ebus_intmap *imap;
287 struct linux_prom_ebus_intmask *imask;
288 unsigned int hi, lo, irq;
289 int i, len, n_imap;
290
291 imap = of_get_property(ebus->prom_node, "interrupt-map", &len);
292 if (!imap)
293 return 0;
294 n_imap = len / sizeof(imap[0]);
295
296 imask = of_get_property(ebus->prom_node, "interrupt-map-mask", NULL);
297 if (!imask)
298 return 0;
299
300 hi = reg->which_io & imask->phys_hi;
301 lo = reg->phys_addr & imask->phys_lo;
302 irq = *interrupt & imask->interrupt;
303 for (i = 0; i < n_imap; i++) {
304 if ((imap[i].phys_hi == hi) &&
305 (imap[i].phys_lo == lo) &&
306 (imap[i].interrupt == irq)) {
307 *interrupt = imap[i].cinterrupt;
308 return 0;
309 }
310 }
311 return -1;
312}
313
314void __init fill_ebus_child(struct device_node *dp,
315 struct linux_prom_registers *preg,
316 struct linux_ebus_child *dev,
317 int non_standard_regs)
318{ 287{
288 struct of_device *op;
319 int *regs; 289 int *regs;
320 int *irqs;
321 int i, len; 290 int i, len;
322 291
323 dev->prom_node = dp; 292 dev->prom_node = dp;
@@ -354,12 +323,16 @@ void __init fill_ebus_child(struct device_node *dp,
354 } 323 }
355 } 324 }
356 325
357 for (i = 0; i < PROMINTR_MAX; i++) 326 op = of_find_device_by_node(dp);
358 dev->irqs[i] = PCI_IRQ_NONE; 327 if (!op) {
359
360 irqs = of_get_property(dp, "interrupts", &len);
361 if (!irqs) {
362 dev->num_irqs = 0; 328 dev->num_irqs = 0;
329 } else {
330 dev->num_irqs = op->num_irqs;
331 for (i = 0; i < dev->num_irqs; i++)
332 dev->irqs[i] = op->irqs[i];
333 }
334
335 if (!dev->num_irqs) {
363 /* 336 /*
364 * Oh, well, some PROMs don't export interrupts 337 * Oh, well, some PROMs don't export interrupts
365 * property to children of EBus devices... 338 * property to children of EBus devices...
@@ -375,23 +348,6 @@ void __init fill_ebus_child(struct device_node *dp,
375 dev->irqs[0] = dev->parent->irqs[1]; 348 dev->irqs[0] = dev->parent->irqs[1];
376 } 349 }
377 } 350 }
378 } else {
379 dev->num_irqs = len / sizeof(irqs[0]);
380 for (i = 0; i < dev->num_irqs; i++) {
381 struct pci_pbm_info *pbm = dev->bus->parent;
382 struct pci_controller_info *p = pbm->parent;
383
384 if (ebus_intmap_match(dev->bus, preg, &irqs[i]) != -1) {
385 dev->irqs[i] = p->irq_build(pbm,
386 dev->bus->self,
387 irqs[i]);
388 } else {
389 /* If we get a bogus interrupt property, just
390 * record the raw value instead of punting.
391 */
392 dev->irqs[i] = irqs[i];
393 }
394 }
395 } 351 }
396} 352}
397 353
@@ -403,72 +359,32 @@ static int __init child_regs_nonstandard(struct linux_ebus_device *dev)
403 return 0; 359 return 0;
404} 360}
405 361
406void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev) 362static void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev)
407{ 363{
408 struct linux_prom_registers *regs;
409 struct linux_ebus_child *child; 364 struct linux_ebus_child *child;
410 int *irqs; 365 struct of_device *op;
411 int i, n, len; 366 int i, len;
412 367
413 dev->prom_node = dp; 368 dev->prom_node = dp;
414 369
415 printk(" [%s", dp->name); 370 printk(" [%s", dp->name);
416 371
417 regs = of_get_property(dp, "reg", &len); 372 op = of_find_device_by_node(dp);
418 if (!regs) { 373 if (!op) {
419 dev->num_addrs = 0; 374 dev->num_addrs = 0;
420 goto probe_interrupts;
421 }
422
423 if (len % sizeof(struct linux_prom_registers)) {
424 prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
425 dev->prom_node->name, len,
426 (int)sizeof(struct linux_prom_registers));
427 prom_halt();
428 }
429 dev->num_addrs = len / sizeof(struct linux_prom_registers);
430
431 for (i = 0; i < dev->num_addrs; i++) {
432 /* XXX Learn how to interpret ebus ranges... -DaveM */
433 if (regs[i].which_io >= 0x10)
434 n = (regs[i].which_io - 0x10) >> 2;
435 else
436 n = regs[i].which_io;
437
438 dev->resource[i].start = dev->bus->self->resource[n].start;
439 dev->resource[i].start += (unsigned long)regs[i].phys_addr;
440 dev->resource[i].end =
441 (dev->resource[i].start + (unsigned long)regs[i].reg_size - 1UL);
442 dev->resource[i].flags = IORESOURCE_MEM;
443 dev->resource[i].name = dev->prom_node->name;
444 request_resource(&dev->bus->self->resource[n],
445 &dev->resource[i]);
446 }
447
448probe_interrupts:
449 for (i = 0; i < PROMINTR_MAX; i++)
450 dev->irqs[i] = PCI_IRQ_NONE;
451
452 irqs = of_get_property(dp, "interrupts", &len);
453 if (!irqs) {
454 dev->num_irqs = 0; 375 dev->num_irqs = 0;
455 } else { 376 } else {
456 dev->num_irqs = len / sizeof(irqs[0]); 377 (void) of_get_property(dp, "reg", &len);
457 for (i = 0; i < dev->num_irqs; i++) { 378 dev->num_addrs = len / sizeof(struct linux_prom_registers);
458 struct pci_pbm_info *pbm = dev->bus->parent; 379
459 struct pci_controller_info *p = pbm->parent; 380 for (i = 0; i < dev->num_addrs; i++)
460 381 memcpy(&dev->resource[i],
461 if (ebus_intmap_match(dev->bus, &regs[0], &irqs[i]) != -1) { 382 &op->resource[i],
462 dev->irqs[i] = p->irq_build(pbm, 383 sizeof(struct resource));
463 dev->bus->self, 384
464 irqs[i]); 385 dev->num_irqs = op->num_irqs;
465 } else { 386 for (i = 0; i < dev->num_irqs; i++)
466 /* If we get a bogus interrupt property, just 387 dev->irqs[i] = op->irqs[i];
467 * record the raw value instead of punting.
468 */
469 dev->irqs[i] = irqs[i];
470 }
471 }
472 } 388 }
473 389
474 dev->ofdev.node = dp; 390 dev->ofdev.node = dp;
@@ -490,7 +406,7 @@ probe_interrupts:
490 child->next = NULL; 406 child->next = NULL;
491 child->parent = dev; 407 child->parent = dev;
492 child->bus = dev->bus; 408 child->bus = dev->bus;
493 fill_ebus_child(dp, regs, child, 409 fill_ebus_child(dp, child,
494 child_regs_nonstandard(dev)); 410 child_regs_nonstandard(dev));
495 411
496 while ((dp = dp->sibling) != NULL) { 412 while ((dp = dp->sibling) != NULL) {
@@ -500,7 +416,7 @@ probe_interrupts:
500 child->next = NULL; 416 child->next = NULL;
501 child->parent = dev; 417 child->parent = dev;
502 child->bus = dev->bus; 418 child->bus = dev->bus;
503 fill_ebus_child(dp, regs, child, 419 fill_ebus_child(dp, child,
504 child_regs_nonstandard(dev)); 420 child_regs_nonstandard(dev));
505 } 421 }
506 } 422 }
diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c
index 24c0dc34be3..0f3aec72ef5 100644
--- a/arch/sparc64/kernel/isa.c
+++ b/arch/sparc64/kernel/isa.c
@@ -3,6 +3,8 @@
3#include <linux/pci.h> 3#include <linux/pci.h>
4#include <linux/slab.h> 4#include <linux/slab.h>
5#include <asm/oplib.h> 5#include <asm/oplib.h>
6#include <asm/prom.h>
7#include <asm/of_device.h>
6#include <asm/isa.h> 8#include <asm/isa.h>
7 9
8struct sparc_isa_bridge *isa_chain; 10struct sparc_isa_bridge *isa_chain;
@@ -46,107 +48,16 @@ isa_dev_get_resource(struct sparc_isa_device *isa_dev)
46 return pregs; 48 return pregs;
47} 49}
48 50
49/* I can't believe they didn't put a real INO in the isa device
50 * interrupts property. The whole point of the OBP properties
51 * is to shield the kernel from IRQ routing details.
52 *
53 * The P1275 standard for ISA devices seems to also have been
54 * totally ignored.
55 *
56 * On later systems, an interrupt-map and interrupt-map-mask scheme
57 * akin to EBUS is used.
58 */
59static struct {
60 int obp_irq;
61 int pci_ino;
62} grover_irq_table[] = {
63 { 1, 0x00 }, /* dma, unknown ino at this point */
64 { 2, 0x27 }, /* floppy */
65 { 3, 0x22 }, /* parallel */
66 { 4, 0x2b }, /* serial */
67 { 5, 0x25 }, /* acpi power management */
68
69 { 0, 0x00 } /* end of table */
70};
71
72static int __init isa_dev_get_irq_using_imap(struct sparc_isa_device *isa_dev,
73 struct sparc_isa_bridge *isa_br,
74 int *interrupt,
75 struct linux_prom_registers *reg)
76{
77 struct linux_prom_ebus_intmap *imap;
78 struct linux_prom_ebus_intmask *imask;
79 unsigned int hi, lo, irq;
80 int i, len, n_imap;
81
82 imap = of_get_property(isa_br->prom_node, "interrupt-map", &len);
83 if (!imap)
84 return 0;
85 n_imap = len / sizeof(imap[0]);
86
87 imask = of_get_property(isa_br->prom_node, "interrupt-map-mask", NULL);
88 if (!imask)
89 return 0;
90
91 hi = reg->which_io & imask->phys_hi;
92 lo = reg->phys_addr & imask->phys_lo;
93 irq = *interrupt & imask->interrupt;
94 for (i = 0; i < n_imap; i++) {
95 if ((imap[i].phys_hi == hi) &&
96 (imap[i].phys_lo == lo) &&
97 (imap[i].interrupt == irq)) {
98 *interrupt = imap[i].cinterrupt;
99 return 0;
100 }
101 }
102 return -1;
103}
104
105static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev, 51static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev,
106 struct linux_prom_registers *pregs) 52 struct linux_prom_registers *pregs)
107{ 53{
108 int irq_prop; 54 struct of_device *op = of_find_device_by_node(isa_dev->prom_node);
109 55
110 irq_prop = of_getintprop_default(isa_dev->prom_node, 56 if (!op || !op->num_irqs) {
111 "interrupts", -1); 57 isa_dev->irq = PCI_IRQ_NONE;
112 if (irq_prop <= 0) {
113 goto no_irq;
114 } else { 58 } else {
115 struct pci_controller_info *pcic; 59 isa_dev->irq = op->irqs[0];
116 struct pci_pbm_info *pbm;
117 int i;
118
119 if (of_find_property(isa_dev->bus->prom_node,
120 "interrupt-map", NULL)) {
121 if (!isa_dev_get_irq_using_imap(isa_dev,
122 isa_dev->bus,
123 &irq_prop,
124 pregs))
125 goto route_irq;
126 }
127
128 for (i = 0; grover_irq_table[i].obp_irq != 0; i++) {
129 if (grover_irq_table[i].obp_irq == irq_prop) {
130 int ino = grover_irq_table[i].pci_ino;
131
132 if (ino == 0)
133 goto no_irq;
134
135 irq_prop = ino;
136 goto route_irq;
137 }
138 }
139 goto no_irq;
140
141route_irq:
142 pbm = isa_dev->bus->parent;
143 pcic = pbm->parent;
144 isa_dev->irq = pcic->irq_build(pbm, NULL, irq_prop);
145 return;
146 } 60 }
147
148no_irq:
149 isa_dev->irq = PCI_IRQ_NONE;
150} 61}
151 62
152static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) 63static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 9812cfa6dd3..3670dc8a7d5 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -146,6 +146,26 @@ void of_iounmap(void __iomem *base, unsigned long size)
146} 146}
147EXPORT_SYMBOL(of_iounmap); 147EXPORT_SYMBOL(of_iounmap);
148 148
149static int node_match(struct device *dev, void *data)
150{
151 struct of_device *op = to_of_device(dev);
152 struct device_node *dp = data;
153
154 return (op->node == dp);
155}
156
157struct of_device *of_find_device_by_node(struct device_node *dp)
158{
159 struct device *dev = bus_find_device(&of_bus_type, NULL,
160 dp, node_match);
161
162 if (dev)
163 return to_of_device(dev);
164
165 return NULL;
166}
167EXPORT_SYMBOL(of_find_device_by_node);
168
149#ifdef CONFIG_PCI 169#ifdef CONFIG_PCI
150struct bus_type isa_bus_type = { 170struct bus_type isa_bus_type = {
151 .name = "isa", 171 .name = "isa",
@@ -261,7 +281,6 @@ static unsigned int of_bus_default_get_flags(u32 *addr)
261 return IORESOURCE_MEM; 281 return IORESOURCE_MEM;
262} 282}
263 283
264
265/* 284/*
266 * PCI bus specific translator 285 * PCI bus specific translator
267 */ 286 */
@@ -594,12 +613,171 @@ static void __init build_device_resources(struct of_device *op,
594 } 613 }
595} 614}
596 615
616static struct device_node * __init
617apply_interrupt_map(struct device_node *dp, struct device_node *pp,
618 u32 *imap, int imlen, u32 *imask,
619 unsigned int *irq_p)
620{
621 struct device_node *cp;
622 unsigned int irq = *irq_p;
623 struct of_bus *bus;
624 phandle handle;
625 u32 *reg;
626 int na, num_reg, i;
627
628 bus = of_match_bus(pp);
629 bus->count_cells(dp, &na, NULL);
630
631 reg = of_get_property(dp, "reg", &num_reg);
632 if (!reg || !num_reg)
633 return NULL;
634
635 imlen /= ((na + 3) * 4);
636 handle = 0;
637 for (i = 0; i < imlen; i++) {
638 int j;
639
640 for (j = 0; j < na; j++) {
641 if ((reg[j] & imask[j]) != imap[j])
642 goto next;
643 }
644 if (imap[na] == irq) {
645 handle = imap[na + 1];
646 irq = imap[na + 2];
647 break;
648 }
649
650 next:
651 imap += (na + 3);
652 }
653 if (i == imlen)
654 return NULL;
655
656 *irq_p = irq;
657 cp = of_find_node_by_phandle(handle);
658
659 return cp;
660}
661
662static unsigned int __init pci_irq_swizzle(struct device_node *dp,
663 struct device_node *pp,
664 unsigned int irq)
665{
666 struct linux_prom_pci_registers *regs;
667 unsigned int devfn, slot, ret;
668
669 if (irq < 1 || irq > 4)
670 return irq;
671
672 regs = of_get_property(dp, "reg", NULL);
673 if (!regs)
674 return irq;
675
676 devfn = (regs->phys_hi >> 8) & 0xff;
677 slot = (devfn >> 3) & 0x1f;
678
679 ret = ((irq - 1 + (slot & 3)) & 3) + 1;
680
681 return ret;
682}
683
684static unsigned int __init build_one_device_irq(struct of_device *op,
685 struct device *parent,
686 unsigned int irq)
687{
688 struct device_node *dp = op->node;
689 struct device_node *pp, *ip;
690 unsigned int orig_irq = irq;
691
692 if (irq == 0xffffffff)
693 return irq;
694
695 if (dp->irq_trans) {
696 irq = dp->irq_trans->irq_build(dp, irq,
697 dp->irq_trans->data);
698#if 1
699 printk("%s: direct translate %x --> %x\n",
700 dp->full_name, orig_irq, irq);
701#endif
702 return irq;
703 }
704
705 /* Something more complicated. Walk up to the root, applying
706 * interrupt-map or bus specific translations, until we hit
707 * an IRQ translator.
708 *
709 * If we hit a bus type or situation we cannot handle, we
710 * stop and assume that the original IRQ number was in a
711 * format which has special meaning to it's immediate parent.
712 */
713 pp = dp->parent;
714 ip = NULL;
715 while (pp) {
716 void *imap, *imsk;
717 int imlen;
718
719 imap = of_get_property(pp, "interrupt-map", &imlen);
720 imsk = of_get_property(pp, "interrupt-map-mask", NULL);
721 if (imap && imsk) {
722 struct device_node *iret;
723 int this_orig_irq = irq;
724
725 iret = apply_interrupt_map(dp, pp,
726 imap, imlen, imsk,
727 &irq);
728#if 1
729 printk("%s: Apply [%s:%x] imap --> [%s:%x]\n",
730 op->node->full_name,
731 pp->full_name, this_orig_irq,
732 (iret ? iret->full_name : "NULL"), irq);
733#endif
734 if (!iret)
735 break;
736
737 if (iret->irq_trans) {
738 ip = iret;
739 break;
740 }
741 } else {
742 if (!strcmp(pp->type, "pci") ||
743 !strcmp(pp->type, "pciex")) {
744 unsigned int this_orig_irq = irq;
745
746 irq = pci_irq_swizzle(dp, pp, irq);
747#if 1
748 printk("%s: PCI swizzle [%s] %x --> %x\n",
749 op->node->full_name,
750 pp->full_name, this_orig_irq, irq);
751#endif
752 }
753
754 if (pp->irq_trans) {
755 ip = pp;
756 break;
757 }
758 }
759 dp = pp;
760 pp = pp->parent;
761 }
762 if (!ip)
763 return orig_irq;
764
765 irq = ip->irq_trans->irq_build(op->node, irq,
766 ip->irq_trans->data);
767#if 1
768 printk("%s: Apply IRQ trans [%s] %x --> %x\n",
769 op->node->full_name, ip->full_name, orig_irq, irq);
770#endif
771
772 return irq;
773}
774
597static struct of_device * __init scan_one_device(struct device_node *dp, 775static struct of_device * __init scan_one_device(struct device_node *dp,
598 struct device *parent) 776 struct device *parent)
599{ 777{
600 struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL); 778 struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
601 unsigned int *irq; 779 unsigned int *irq;
602 int len; 780 int len, i;
603 781
604 if (!op) 782 if (!op)
605 return NULL; 783 return NULL;
@@ -613,12 +791,16 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
613 op->portid = of_getintprop_default(dp, "portid", -1); 791 op->portid = of_getintprop_default(dp, "portid", -1);
614 792
615 irq = of_get_property(dp, "interrupts", &len); 793 irq = of_get_property(dp, "interrupts", &len);
616 if (irq) 794 if (irq) {
617 op->irq = *irq; 795 memcpy(op->irqs, irq, len);
618 else 796 op->num_irqs = len / 4;
619 op->irq = 0xffffffff; 797 } else {
798 op->num_irqs = 0;
799 }
620 800
621 build_device_resources(op, parent); 801 build_device_resources(op, parent);
802 for (i = 0; i < op->num_irqs; i++)
803 op->irqs[i] = build_one_device_irq(op, parent, op->irqs[i]);
622 804
623 op->dev.parent = parent; 805 op->dev.parent = parent;
624 op->dev.bus = &of_bus_type; 806 op->dev.bus = &of_bus_type;
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 7b962582860..04ea6c2eb7a 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -404,14 +404,8 @@ void pcibios_bus_to_resource(struct pci_dev *pdev, struct resource *res,
404} 404}
405EXPORT_SYMBOL(pcibios_bus_to_resource); 405EXPORT_SYMBOL(pcibios_bus_to_resource);
406 406
407extern int pci_irq_verbose;
408
409char * __init pcibios_setup(char *str) 407char * __init pcibios_setup(char *str)
410{ 408{
411 if (!strcmp(str, "irq_verbose")) {
412 pci_irq_verbose = 1;
413 return NULL;
414 }
415 return str; 409 return str;
416} 410}
417 411
diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
index b06a2955bf5..7a59cc72c84 100644
--- a/arch/sparc64/kernel/pci_common.c
+++ b/arch/sparc64/kernel/pci_common.c
@@ -10,12 +10,10 @@
10 10
11#include <asm/pbm.h> 11#include <asm/pbm.h>
12#include <asm/prom.h> 12#include <asm/prom.h>
13#include <asm/of_device.h>
13 14
14#include "pci_impl.h" 15#include "pci_impl.h"
15 16
16/* Pass "pci=irq_verbose" on the kernel command line to enable this. */
17int pci_irq_verbose;
18
19/* Fix self device of BUS and hook it into BUS->self. 17/* Fix self device of BUS and hook it into BUS->self.
20 * The pci_scan_bus does not do this for the host bridge. 18 * The pci_scan_bus does not do this for the host bridge.
21 */ 19 */
@@ -169,6 +167,7 @@ static void __init pdev_cookie_fillin(struct pci_pbm_info *pbm,
169 } 167 }
170 pcp->pbm = pbm; 168 pcp->pbm = pbm;
171 pcp->prom_node = dp; 169 pcp->prom_node = dp;
170 pcp->op = of_find_device_by_node(dp);
172 memcpy(pcp->prom_regs, pregs, 171 memcpy(pcp->prom_regs, pregs,
173 nregs * sizeof(struct linux_prom_pci_registers)); 172 nregs * sizeof(struct linux_prom_pci_registers));
174 pcp->num_prom_regs = nregs; 173 pcp->num_prom_regs = nregs;
@@ -549,296 +548,18 @@ void __init pci_assign_unassigned(struct pci_pbm_info *pbm,
549 pci_assign_unassigned(pbm, bus); 548 pci_assign_unassigned(pbm, bus);
550} 549}
551 550
552static inline unsigned int pci_slot_swivel(struct pci_pbm_info *pbm,
553 struct pci_dev *toplevel_pdev,
554 struct pci_dev *pdev,
555 unsigned int interrupt)
556{
557 unsigned int ret;
558
559 if (unlikely(interrupt < 1 || interrupt > 4)) {
560 printk("%s: Device %s interrupt value of %u is strange.\n",
561 pbm->name, pci_name(pdev), interrupt);
562 return interrupt;
563 }
564
565 ret = ((interrupt - 1 + (PCI_SLOT(pdev->devfn) & 3)) & 3) + 1;
566
567 if (pci_irq_verbose)
568 printk("%s: %s IRQ Swivel %s [%x:%x] -> [%x]\n",
569 pbm->name, pci_name(toplevel_pdev), pci_name(pdev),
570 interrupt, PCI_SLOT(pdev->devfn), ret);
571
572 return ret;
573}
574
575static inline unsigned int pci_apply_intmap(struct pci_pbm_info *pbm,
576 struct pci_dev *toplevel_pdev,
577 struct pci_dev *pbus,
578 struct pci_dev *pdev,
579 unsigned int interrupt,
580 struct device_node **cnode)
581{
582 struct linux_prom_pci_intmap *imap;
583 struct linux_prom_pci_intmask *imask;
584 struct pcidev_cookie *pbus_pcp = pbus->sysdata;
585 struct pcidev_cookie *pdev_pcp = pdev->sysdata;
586 struct linux_prom_pci_registers *pregs = pdev_pcp->prom_regs;
587 struct property *prop;
588 int plen, num_imap, i;
589 unsigned int hi, mid, lo, irq, orig_interrupt;
590
591 *cnode = pbus_pcp->prom_node;
592
593 prop = of_find_property(pbus_pcp->prom_node, "interrupt-map", &plen);
594 if (!prop ||
595 (plen % sizeof(struct linux_prom_pci_intmap)) != 0) {
596 printk("%s: Device %s interrupt-map has bad len %d\n",
597 pbm->name, pci_name(pbus), plen);
598 goto no_intmap;
599 }
600 imap = prop->value;
601 num_imap = plen / sizeof(struct linux_prom_pci_intmap);
602
603 prop = of_find_property(pbus_pcp->prom_node, "interrupt-map-mask", &plen);
604 if (!prop ||
605 (plen % sizeof(struct linux_prom_pci_intmask)) != 0) {
606 printk("%s: Device %s interrupt-map-mask has bad len %d\n",
607 pbm->name, pci_name(pbus), plen);
608 goto no_intmap;
609 }
610 imask = prop->value;
611
612 orig_interrupt = interrupt;
613
614 hi = pregs->phys_hi & imask->phys_hi;
615 mid = pregs->phys_mid & imask->phys_mid;
616 lo = pregs->phys_lo & imask->phys_lo;
617 irq = interrupt & imask->interrupt;
618
619 for (i = 0; i < num_imap; i++) {
620 if (imap[i].phys_hi == hi &&
621 imap[i].phys_mid == mid &&
622 imap[i].phys_lo == lo &&
623 imap[i].interrupt == irq) {
624 *cnode = of_find_node_by_phandle(imap[i].cnode);
625 interrupt = imap[i].cinterrupt;
626 }
627 }
628
629 if (pci_irq_verbose)
630 printk("%s: %s MAP BUS %s DEV %s [%x] -> [%x]\n",
631 pbm->name, pci_name(toplevel_pdev),
632 pci_name(pbus), pci_name(pdev),
633 orig_interrupt, interrupt);
634
635no_intmap:
636 return interrupt;
637}
638
639/* For each PCI bus on the way to the root:
640 * 1) If it has an interrupt-map property, apply it.
641 * 2) Else, swivel the interrupt number based upon the PCI device number.
642 *
643 * Return the "IRQ controller" node. If this is the PBM's device node,
644 * all interrupt translations are complete, else we should use that node's
645 * "reg" property to apply the PBM's "interrupt-{map,mask}" to the interrupt.
646 */
647static struct device_node * __init
648pci_intmap_match_to_root(struct pci_pbm_info *pbm,
649 struct pci_dev *pdev,
650 unsigned int *interrupt)
651{
652 struct pci_dev *toplevel_pdev = pdev;
653 struct pcidev_cookie *toplevel_pcp = toplevel_pdev->sysdata;
654 struct device_node *cnode = toplevel_pcp->prom_node;
655
656 while (pdev->bus->number != pbm->pci_first_busno) {
657 struct pci_dev *pbus = pdev->bus->self;
658 struct pcidev_cookie *pcp = pbus->sysdata;
659 struct property *prop;
660
661 prop = of_find_property(pcp->prom_node, "interrupt-map", NULL);
662 if (!prop) {
663 *interrupt = pci_slot_swivel(pbm, toplevel_pdev,
664 pdev, *interrupt);
665 cnode = pcp->prom_node;
666 } else {
667 *interrupt = pci_apply_intmap(pbm, toplevel_pdev,
668 pbus, pdev,
669 *interrupt, &cnode);
670
671 while (pcp->prom_node != cnode &&
672 pbus->bus->number != pbm->pci_first_busno) {
673 pbus = pbus->bus->self;
674 pcp = pbus->sysdata;
675 }
676 }
677 pdev = pbus;
678
679 if (cnode == pbm->prom_node)
680 break;
681 }
682
683 return cnode;
684}
685
686static int __init pci_intmap_match(struct pci_dev *pdev, unsigned int *interrupt)
687{
688 struct pcidev_cookie *dev_pcp = pdev->sysdata;
689 struct pci_pbm_info *pbm = dev_pcp->pbm;
690 struct linux_prom_pci_registers *reg;
691 struct device_node *cnode;
692 struct property *prop;
693 unsigned int hi, mid, lo, irq;
694 int i, plen;
695
696 cnode = pci_intmap_match_to_root(pbm, pdev, interrupt);
697 if (cnode == pbm->prom_node)
698 goto success;
699
700 prop = of_find_property(cnode, "reg", &plen);
701 if (!prop ||
702 (plen % sizeof(struct linux_prom_pci_registers)) != 0) {
703 printk("%s: OBP node %s reg property has bad len %d\n",
704 pbm->name, cnode->full_name, plen);
705 goto fail;
706 }
707 reg = prop->value;
708
709 hi = reg[0].phys_hi & pbm->pbm_intmask->phys_hi;
710 mid = reg[0].phys_mid & pbm->pbm_intmask->phys_mid;
711 lo = reg[0].phys_lo & pbm->pbm_intmask->phys_lo;
712 irq = *interrupt & pbm->pbm_intmask->interrupt;
713
714 for (i = 0; i < pbm->num_pbm_intmap; i++) {
715 struct linux_prom_pci_intmap *intmap;
716
717 intmap = &pbm->pbm_intmap[i];
718
719 if (intmap->phys_hi == hi &&
720 intmap->phys_mid == mid &&
721 intmap->phys_lo == lo &&
722 intmap->interrupt == irq) {
723 *interrupt = intmap->cinterrupt;
724 goto success;
725 }
726 }
727
728fail:
729 return 0;
730
731success:
732 if (pci_irq_verbose)
733 printk("%s: Routing bus[%2x] slot[%2x] to INO[%02x]\n",
734 pbm->name,
735 pdev->bus->number, PCI_SLOT(pdev->devfn),
736 *interrupt);
737 return 1;
738}
739
740static void __init pdev_fixup_irq(struct pci_dev *pdev) 551static void __init pdev_fixup_irq(struct pci_dev *pdev)
741{ 552{
742 struct pcidev_cookie *pcp = pdev->sysdata; 553 struct pcidev_cookie *pcp = pdev->sysdata;
743 struct pci_pbm_info *pbm = pcp->pbm; 554 struct of_device *op = pcp->op;
744 struct pci_controller_info *p = pbm->parent;
745 unsigned int portid = pbm->portid;
746 unsigned int prom_irq;
747 struct device_node *dp = pcp->prom_node;
748 struct property *prop;
749
750 /* If this is an empty EBUS device, sometimes OBP fails to
751 * give it a valid fully specified interrupts property.
752 * The EBUS hooked up to SunHME on PCI I/O boards of
753 * Ex000 systems is one such case.
754 *
755 * The interrupt is not important so just ignore it.
756 */
757 if (pdev->vendor == PCI_VENDOR_ID_SUN &&
758 pdev->device == PCI_DEVICE_ID_SUN_EBUS &&
759 !dp->child) {
760 pdev->irq = 0;
761 return;
762 }
763 555
764 prop = of_find_property(dp, "interrupts", NULL); 556 if (op->irqs[0] == 0xffffffff) {
765 if (!prop) { 557 pdev->irq = PCI_IRQ_NONE;
766 pdev->irq = 0;
767 return; 558 return;
768 } 559 }
769 prom_irq = *(unsigned int *) prop->value;
770
771 if (tlb_type != hypervisor) {
772 /* Fully specified already? */
773 if (((prom_irq & PCI_IRQ_IGN) >> 6) == portid) {
774 pdev->irq = p->irq_build(pbm, pdev, prom_irq);
775 goto have_irq;
776 }
777
778 /* An onboard device? (bit 5 set) */
779 if ((prom_irq & PCI_IRQ_INO) & 0x20) {
780 pdev->irq = p->irq_build(pbm, pdev, (portid << 6 | prom_irq));
781 goto have_irq;
782 }
783 }
784
785 /* Can we find a matching entry in the interrupt-map? */
786 if (pci_intmap_match(pdev, &prom_irq)) {
787 pdev->irq = p->irq_build(pbm, pdev, (portid << 6) | prom_irq);
788 goto have_irq;
789 }
790
791 /* Ok, we have to do it the hard way. */
792 {
793 unsigned int bus, slot, line;
794
795 bus = (pbm == &pbm->parent->pbm_B) ? (1 << 4) : 0;
796
797 /* If we have a legal interrupt property, use it as
798 * the IRQ line.
799 */
800 if (prom_irq > 0 && prom_irq < 5) {
801 line = ((prom_irq - 1) & 3);
802 } else {
803 u8 pci_irq_line;
804 560
805 /* Else just directly consult PCI config space. */ 561 pdev->irq = op->irqs[0];
806 pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pci_irq_line);
807 line = ((pci_irq_line - 1) & 3);
808 }
809
810 /* Now figure out the slot.
811 *
812 * Basically, device number zero on the top-level bus is
813 * always the PCI host controller. Slot 0 is then device 1.
814 * PBM A supports two external slots (0 and 1), and PBM B
815 * supports 4 external slots (0, 1, 2, and 3). On-board PCI
816 * devices are wired to device numbers outside of these
817 * ranges. -DaveM
818 */
819 if (pdev->bus->number == pbm->pci_first_busno) {
820 slot = PCI_SLOT(pdev->devfn) - pbm->pci_first_slot;
821 } else {
822 struct pci_dev *bus_dev;
823
824 /* Underneath a bridge, use slot number of parent
825 * bridge which is closest to the PBM.
826 */
827 bus_dev = pdev->bus->self;
828 while (bus_dev->bus &&
829 bus_dev->bus->number != pbm->pci_first_busno)
830 bus_dev = bus_dev->bus->self;
831
832 slot = PCI_SLOT(bus_dev->devfn) - pbm->pci_first_slot;
833 }
834 slot = slot << 2;
835
836 pdev->irq = p->irq_build(pbm, pdev,
837 ((portid << 6) & PCI_IRQ_IGN) |
838 (bus | slot | line));
839 }
840 562
841have_irq:
842 pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 563 pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
843 pdev->irq & PCI_IRQ_INO); 564 pdev->irq & PCI_IRQ_INO);
844} 565}
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 1cb63346f09..bf7b32b3670 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -18,6 +18,7 @@
18#include <asm/irq.h> 18#include <asm/irq.h>
19#include <asm/starfire.h> 19#include <asm/starfire.h>
20#include <asm/prom.h> 20#include <asm/prom.h>
21#include <asm/of_device.h>
21 22
22#include "pci_impl.h" 23#include "pci_impl.h"
23#include "iommu_common.h" 24#include "iommu_common.h"
@@ -208,110 +209,6 @@ static struct pci_ops psycho_ops = {
208 .write = psycho_write_pci_cfg, 209 .write = psycho_write_pci_cfg,
209}; 210};
210 211
211/* PSYCHO interrupt mapping support. */
212#define PSYCHO_IMAP_A_SLOT0 0x0c00UL
213#define PSYCHO_IMAP_B_SLOT0 0x0c20UL
214static unsigned long psycho_pcislot_imap_offset(unsigned long ino)
215{
216 unsigned int bus = (ino & 0x10) >> 4;
217 unsigned int slot = (ino & 0x0c) >> 2;
218
219 if (bus == 0)
220 return PSYCHO_IMAP_A_SLOT0 + (slot * 8);
221 else
222 return PSYCHO_IMAP_B_SLOT0 + (slot * 8);
223}
224
225#define PSYCHO_IMAP_SCSI 0x1000UL
226#define PSYCHO_IMAP_ETH 0x1008UL
227#define PSYCHO_IMAP_BPP 0x1010UL
228#define PSYCHO_IMAP_AU_REC 0x1018UL
229#define PSYCHO_IMAP_AU_PLAY 0x1020UL
230#define PSYCHO_IMAP_PFAIL 0x1028UL
231#define PSYCHO_IMAP_KMS 0x1030UL
232#define PSYCHO_IMAP_FLPY 0x1038UL
233#define PSYCHO_IMAP_SHW 0x1040UL
234#define PSYCHO_IMAP_KBD 0x1048UL
235#define PSYCHO_IMAP_MS 0x1050UL
236#define PSYCHO_IMAP_SER 0x1058UL
237#define PSYCHO_IMAP_TIM0 0x1060UL
238#define PSYCHO_IMAP_TIM1 0x1068UL
239#define PSYCHO_IMAP_UE 0x1070UL
240#define PSYCHO_IMAP_CE 0x1078UL
241#define PSYCHO_IMAP_A_ERR 0x1080UL
242#define PSYCHO_IMAP_B_ERR 0x1088UL
243#define PSYCHO_IMAP_PMGMT 0x1090UL
244#define PSYCHO_IMAP_GFX 0x1098UL
245#define PSYCHO_IMAP_EUPA 0x10a0UL
246
247static unsigned long __onboard_imap_off[] = {
248/*0x20*/ PSYCHO_IMAP_SCSI,
249/*0x21*/ PSYCHO_IMAP_ETH,
250/*0x22*/ PSYCHO_IMAP_BPP,
251/*0x23*/ PSYCHO_IMAP_AU_REC,
252/*0x24*/ PSYCHO_IMAP_AU_PLAY,
253/*0x25*/ PSYCHO_IMAP_PFAIL,
254/*0x26*/ PSYCHO_IMAP_KMS,
255/*0x27*/ PSYCHO_IMAP_FLPY,
256/*0x28*/ PSYCHO_IMAP_SHW,
257/*0x29*/ PSYCHO_IMAP_KBD,
258/*0x2a*/ PSYCHO_IMAP_MS,
259/*0x2b*/ PSYCHO_IMAP_SER,
260/*0x2c*/ PSYCHO_IMAP_TIM0,
261/*0x2d*/ PSYCHO_IMAP_TIM1,
262/*0x2e*/ PSYCHO_IMAP_UE,
263/*0x2f*/ PSYCHO_IMAP_CE,
264/*0x30*/ PSYCHO_IMAP_A_ERR,
265/*0x31*/ PSYCHO_IMAP_B_ERR,
266/*0x32*/ PSYCHO_IMAP_PMGMT
267};
268#define PSYCHO_ONBOARD_IRQ_BASE 0x20
269#define PSYCHO_ONBOARD_IRQ_LAST 0x32
270#define psycho_onboard_imap_offset(__ino) \
271 __onboard_imap_off[(__ino) - PSYCHO_ONBOARD_IRQ_BASE]
272
273#define PSYCHO_ICLR_A_SLOT0 0x1400UL
274#define PSYCHO_ICLR_SCSI 0x1800UL
275
276#define psycho_iclr_offset(ino) \
277 ((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
278 (PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
279
280static unsigned int psycho_irq_build(struct pci_pbm_info *pbm,
281 struct pci_dev *pdev,
282 unsigned int ino)
283{
284 unsigned long imap, iclr;
285 unsigned long imap_off, iclr_off;
286 int inofixup = 0;
287
288 ino &= PCI_IRQ_INO;
289 if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
290 /* PCI slot */
291 imap_off = psycho_pcislot_imap_offset(ino);
292 } else {
293 /* Onboard device */
294 if (ino > PSYCHO_ONBOARD_IRQ_LAST) {
295 prom_printf("psycho_irq_build: Wacky INO [%x]\n", ino);
296 prom_halt();
297 }
298 imap_off = psycho_onboard_imap_offset(ino);
299 }
300
301 /* Now build the IRQ bucket. */
302 imap = pbm->controller_regs + imap_off;
303 imap += 4;
304
305 iclr_off = psycho_iclr_offset(ino);
306 iclr = pbm->controller_regs + iclr_off;
307 iclr += 4;
308
309 if ((ino & 0x20) == 0)
310 inofixup = ino & 0x03;
311
312 return build_irq(inofixup, iclr, imap);
313}
314
315/* PSYCHO error handling support. */ 212/* PSYCHO error handling support. */
316enum psycho_error_type { 213enum psycho_error_type {
317 UE_ERR, CE_ERR, PCI_ERR 214 UE_ERR, CE_ERR, PCI_ERR
@@ -944,51 +841,34 @@ static irqreturn_t psycho_pcierr_intr(int irq, void *dev_id, struct pt_regs *reg
944#define PSYCHO_ECCCTRL_EE 0x8000000000000000UL /* Enable ECC Checking */ 841#define PSYCHO_ECCCTRL_EE 0x8000000000000000UL /* Enable ECC Checking */
945#define PSYCHO_ECCCTRL_UE 0x4000000000000000UL /* Enable UE Interrupts */ 842#define PSYCHO_ECCCTRL_UE 0x4000000000000000UL /* Enable UE Interrupts */
946#define PSYCHO_ECCCTRL_CE 0x2000000000000000UL /* Enable CE INterrupts */ 843#define PSYCHO_ECCCTRL_CE 0x2000000000000000UL /* Enable CE INterrupts */
947#define PSYCHO_UE_INO 0x2e
948#define PSYCHO_CE_INO 0x2f
949#define PSYCHO_PCIERR_A_INO 0x30
950#define PSYCHO_PCIERR_B_INO 0x31
951static void psycho_register_error_handlers(struct pci_controller_info *p) 844static void psycho_register_error_handlers(struct pci_controller_info *p)
952{ 845{
953 struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */ 846 struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */
847 struct of_device *op = of_find_device_by_node(pbm->prom_node);
954 unsigned long base = p->pbm_A.controller_regs; 848 unsigned long base = p->pbm_A.controller_regs;
955 unsigned int irq, portid = pbm->portid;
956 u64 tmp; 849 u64 tmp;
957 850
958 /* Build IRQs and register handlers. */ 851 if (!op)
959 irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_UE_INO); 852 return;
960 if (request_irq(irq, psycho_ue_intr,
961 SA_SHIRQ, "PSYCHO UE", p) < 0) {
962 prom_printf("PSYCHO%d: Cannot register UE interrupt.\n",
963 p->index);
964 prom_halt();
965 }
966 853
967 irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_CE_INO); 854 /* Psycho interrupt property order is:
968 if (request_irq(irq, psycho_ce_intr, 855 * 0: PCIERR PBM B INO
969 SA_SHIRQ, "PSYCHO CE", p) < 0) { 856 * 1: UE ERR
970 prom_printf("PSYCHO%d: Cannot register CE interrupt.\n", 857 * 2: CE ERR
971 p->index); 858 * 3: POWER FAIL
972 prom_halt(); 859 * 4: SPARE HARDWARE
973 } 860 * 5: PCIERR PBM A INO
861 */
974 862
975 pbm = &p->pbm_A; 863 if (op->num_irqs < 6)
976 irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_PCIERR_A_INO); 864 return;
977 if (request_irq(irq, psycho_pcierr_intr,
978 SA_SHIRQ, "PSYCHO PCIERR", &p->pbm_A) < 0) {
979 prom_printf("PSYCHO%d(PBMA): Cannot register PciERR interrupt.\n",
980 p->index);
981 prom_halt();
982 }
983 865
984 pbm = &p->pbm_B; 866 request_irq(op->irqs[1], psycho_ue_intr, SA_SHIRQ, "PSYCHO UE", p);
985 irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_PCIERR_B_INO); 867 request_irq(op->irqs[2], psycho_ce_intr, SA_SHIRQ, "PSYCHO CE", p);
986 if (request_irq(irq, psycho_pcierr_intr, 868 request_irq(op->irqs[5], psycho_pcierr_intr, SA_SHIRQ,
987 SA_SHIRQ, "PSYCHO PCIERR", &p->pbm_B) < 0) { 869 "PSYCHO PCIERR-A", &p->pbm_A);
988 prom_printf("PSYCHO%d(PBMB): Cannot register PciERR interrupt.\n", 870 request_irq(op->irqs[0], psycho_pcierr_intr, SA_SHIRQ,
989 p->index); 871 "PSYCHO PCIERR-B", &p->pbm_B);
990 prom_halt();
991 }
992 872
993 /* Enable UE and CE interrupts for controller. */ 873 /* Enable UE and CE interrupts for controller. */
994 psycho_write(base + PSYCHO_ECC_CTRL, 874 psycho_write(base + PSYCHO_ECC_CTRL,
@@ -1406,7 +1286,6 @@ void psycho_init(struct device_node *dp, char *model_name)
1406 p->index = pci_num_controllers++; 1286 p->index = pci_num_controllers++;
1407 p->pbms_same_domain = 0; 1287 p->pbms_same_domain = 0;
1408 p->scan_bus = psycho_scan_bus; 1288 p->scan_bus = psycho_scan_bus;
1409 p->irq_build = psycho_irq_build;
1410 p->base_address_update = psycho_base_address_update; 1289 p->base_address_update = psycho_base_address_update;
1411 p->resource_adjust = psycho_resource_adjust; 1290 p->resource_adjust = psycho_resource_adjust;
1412 p->pci_ops = &psycho_ops; 1291 p->pci_ops = &psycho_ops;
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index 26f194ce440..5e087b0fb4c 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -485,114 +485,6 @@ static struct pci_ops sabre_ops = {
485 .write = sabre_write_pci_cfg, 485 .write = sabre_write_pci_cfg,
486}; 486};
487 487
488static unsigned long sabre_pcislot_imap_offset(unsigned long ino)
489{
490 unsigned int bus = (ino & 0x10) >> 4;
491 unsigned int slot = (ino & 0x0c) >> 2;
492
493 if (bus == 0)
494 return SABRE_IMAP_A_SLOT0 + (slot * 8);
495 else
496 return SABRE_IMAP_B_SLOT0 + (slot * 8);
497}
498
499static unsigned long __onboard_imap_off[] = {
500/*0x20*/ SABRE_IMAP_SCSI,
501/*0x21*/ SABRE_IMAP_ETH,
502/*0x22*/ SABRE_IMAP_BPP,
503/*0x23*/ SABRE_IMAP_AU_REC,
504/*0x24*/ SABRE_IMAP_AU_PLAY,
505/*0x25*/ SABRE_IMAP_PFAIL,
506/*0x26*/ SABRE_IMAP_KMS,
507/*0x27*/ SABRE_IMAP_FLPY,
508/*0x28*/ SABRE_IMAP_SHW,
509/*0x29*/ SABRE_IMAP_KBD,
510/*0x2a*/ SABRE_IMAP_MS,
511/*0x2b*/ SABRE_IMAP_SER,
512/*0x2c*/ 0 /* reserved */,
513/*0x2d*/ 0 /* reserved */,
514/*0x2e*/ SABRE_IMAP_UE,
515/*0x2f*/ SABRE_IMAP_CE,
516/*0x30*/ SABRE_IMAP_PCIERR,
517};
518#define SABRE_ONBOARD_IRQ_BASE 0x20
519#define SABRE_ONBOARD_IRQ_LAST 0x30
520#define sabre_onboard_imap_offset(__ino) \
521 __onboard_imap_off[(__ino) - SABRE_ONBOARD_IRQ_BASE]
522
523#define sabre_iclr_offset(ino) \
524 ((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
525 (SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
526
527/* When a device lives behind a bridge deeper in the PCI bus topology
528 * than APB, a special sequence must run to make sure all pending DMA
529 * transfers at the time of IRQ delivery are visible in the coherency
530 * domain by the cpu. This sequence is to perform a read on the far
531 * side of the non-APB bridge, then perform a read of Sabre's DMA
532 * write-sync register.
533 */
534static void sabre_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
535{
536 struct pci_dev *pdev = _arg1;
537 unsigned long sync_reg = (unsigned long) _arg2;
538 u16 _unused;
539
540 pci_read_config_word(pdev, PCI_VENDOR_ID, &_unused);
541 sabre_read(sync_reg);
542}
543
544static unsigned int sabre_irq_build(struct pci_pbm_info *pbm,
545 struct pci_dev *pdev,
546 unsigned int ino)
547{
548 unsigned long imap, iclr;
549 unsigned long imap_off, iclr_off;
550 int inofixup = 0;
551 int virt_irq;
552
553 ino &= PCI_IRQ_INO;
554 if (ino < SABRE_ONBOARD_IRQ_BASE) {
555 /* PCI slot */
556 imap_off = sabre_pcislot_imap_offset(ino);
557 } else {
558 /* onboard device */
559 if (ino > SABRE_ONBOARD_IRQ_LAST) {
560 prom_printf("sabre_irq_build: Wacky INO [%x]\n", ino);
561 prom_halt();
562 }
563 imap_off = sabre_onboard_imap_offset(ino);
564 }
565
566 /* Now build the IRQ bucket. */
567 imap = pbm->controller_regs + imap_off;
568 imap += 4;
569
570 iclr_off = sabre_iclr_offset(ino);
571 iclr = pbm->controller_regs + iclr_off;
572 iclr += 4;
573
574 if ((ino & 0x20) == 0)
575 inofixup = ino & 0x03;
576
577 virt_irq = build_irq(inofixup, iclr, imap);
578
579 if (pdev) {
580 struct pcidev_cookie *pcp = pdev->sysdata;
581
582 if (pdev->bus->number != pcp->pbm->pci_first_busno) {
583 struct pci_controller_info *p = pcp->pbm->parent;
584
585 irq_install_pre_handler(virt_irq,
586 sabre_wsync_handler,
587 pdev,
588 (void *)
589 p->pbm_A.controller_regs +
590 SABRE_WRSYNC);
591 }
592 }
593 return virt_irq;
594}
595
596/* SABRE error handling support. */ 488/* SABRE error handling support. */
597static void sabre_check_iommu_error(struct pci_controller_info *p, 489static void sabre_check_iommu_error(struct pci_controller_info *p,
598 unsigned long afsr, 490 unsigned long afsr,
@@ -929,17 +821,30 @@ static irqreturn_t sabre_pcierr_intr(int irq, void *dev_id, struct pt_regs *regs
929 return IRQ_HANDLED; 821 return IRQ_HANDLED;
930} 822}
931 823
932/* XXX What about PowerFail/PowerManagement??? -DaveM */
933#define SABRE_UE_INO 0x2e
934#define SABRE_CE_INO 0x2f
935#define SABRE_PCIERR_INO 0x30
936static void sabre_register_error_handlers(struct pci_controller_info *p) 824static void sabre_register_error_handlers(struct pci_controller_info *p)
937{ 825{
938 struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */ 826 struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */
827 struct device_node *dp = pbm->prom_node;
828 struct of_device *op;
939 unsigned long base = pbm->controller_regs; 829 unsigned long base = pbm->controller_regs;
940 unsigned long irq, portid = pbm->portid;
941 u64 tmp; 830 u64 tmp;
942 831
832 if (pbm->chip_type == PBM_CHIP_TYPE_SABRE)
833 dp = dp->parent;
834
835 op = of_find_device_by_node(dp);
836 if (!op)
837 return;
838
839 /* Sabre/Hummingbird IRQ property layout is:
840 * 0: PCI ERR
841 * 1: UE ERR
842 * 2: CE ERR
843 * 3: POWER FAIL
844 */
845 if (op->num_irqs < 4)
846 return;
847
943 /* We clear the error bits in the appropriate AFSR before 848 /* We clear the error bits in the appropriate AFSR before
944 * registering the handler so that we don't get spurious 849 * registering the handler so that we don't get spurious
945 * interrupts. 850 * interrupts.
@@ -948,32 +853,16 @@ static void sabre_register_error_handlers(struct pci_controller_info *p)
948 (SABRE_UEAFSR_PDRD | SABRE_UEAFSR_PDWR | 853 (SABRE_UEAFSR_PDRD | SABRE_UEAFSR_PDWR |
949 SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR | 854 SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR |
950 SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE)); 855 SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE));
951 irq = sabre_irq_build(pbm, NULL, (portid << 6) | SABRE_UE_INO); 856
952 if (request_irq(irq, sabre_ue_intr, 857 request_irq(op->irqs[1], sabre_ue_intr, SA_SHIRQ, "SABRE UE", p);
953 SA_SHIRQ, "SABRE UE", p) < 0) {
954 prom_printf("SABRE%d: Cannot register UE interrupt.\n",
955 p->index);
956 prom_halt();
957 }
958 858
959 sabre_write(base + SABRE_CE_AFSR, 859 sabre_write(base + SABRE_CE_AFSR,
960 (SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR | 860 (SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR |
961 SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR)); 861 SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR));
962 irq = sabre_irq_build(pbm, NULL, (portid << 6) | SABRE_CE_INO);
963 if (request_irq(irq, sabre_ce_intr,
964 SA_SHIRQ, "SABRE CE", p) < 0) {
965 prom_printf("SABRE%d: Cannot register CE interrupt.\n",
966 p->index);
967 prom_halt();
968 }
969 862
970 irq = sabre_irq_build(pbm, NULL, (portid << 6) | SABRE_PCIERR_INO); 863 request_irq(op->irqs[2], sabre_ce_intr, SA_SHIRQ, "SABRE CE", p);
971 if (request_irq(irq, sabre_pcierr_intr, 864 request_irq(op->irqs[0], sabre_pcierr_intr, SA_SHIRQ,
972 SA_SHIRQ, "SABRE PCIERR", p) < 0) { 865 "SABRE PCIERR", p);
973 prom_printf("SABRE%d: Cannot register PciERR interrupt.\n",
974 p->index);
975 prom_halt();
976 }
977 866
978 tmp = sabre_read(base + SABRE_PCICTRL); 867 tmp = sabre_read(base + SABRE_PCICTRL);
979 tmp |= SABRE_PCICTRL_ERREN; 868 tmp |= SABRE_PCICTRL_ERREN;
@@ -1492,7 +1381,6 @@ void sabre_init(struct device_node *dp, char *model_name)
1492 p->index = pci_num_controllers++; 1381 p->index = pci_num_controllers++;
1493 p->pbms_same_domain = 1; 1382 p->pbms_same_domain = 1;
1494 p->scan_bus = sabre_scan_bus; 1383 p->scan_bus = sabre_scan_bus;
1495 p->irq_build = sabre_irq_build;
1496 p->base_address_update = sabre_base_address_update; 1384 p->base_address_update = sabre_base_address_update;
1497 p->resource_adjust = sabre_resource_adjust; 1385 p->resource_adjust = sabre_resource_adjust;
1498 p->pci_ops = &sabre_ops; 1386 p->pci_ops = &sabre_ops;
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index f16449ccd7b..5c6e2a9b91f 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -217,116 +217,6 @@ static struct pci_ops schizo_ops = {
217 .write = schizo_write_pci_cfg, 217 .write = schizo_write_pci_cfg,
218}; 218};
219 219
220/* SCHIZO interrupt mapping support. Unlike Psycho, for this controller the
221 * imap/iclr registers are per-PBM.
222 */
223#define SCHIZO_IMAP_BASE 0x1000UL
224#define SCHIZO_ICLR_BASE 0x1400UL
225
226static unsigned long schizo_imap_offset(unsigned long ino)
227{
228 return SCHIZO_IMAP_BASE + (ino * 8UL);
229}
230
231static unsigned long schizo_iclr_offset(unsigned long ino)
232{
233 return SCHIZO_ICLR_BASE + (ino * 8UL);
234}
235
236static void tomatillo_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
237{
238 unsigned long sync_reg = (unsigned long) _arg2;
239 u64 mask = 1UL << (ino & IMAP_INO);
240 u64 val;
241 int limit;
242
243 schizo_write(sync_reg, mask);
244
245 limit = 100000;
246 val = 0;
247 while (--limit) {
248 val = schizo_read(sync_reg);
249 if (!(val & mask))
250 break;
251 }
252 if (limit <= 0) {
253 printk("tomatillo_wsync_handler: DMA won't sync [%lx:%lx]\n",
254 val, mask);
255 }
256
257 if (_arg1) {
258 static unsigned char cacheline[64]
259 __attribute__ ((aligned (64)));
260
261 __asm__ __volatile__("rd %%fprs, %0\n\t"
262 "or %0, %4, %1\n\t"
263 "wr %1, 0x0, %%fprs\n\t"
264 "stda %%f0, [%5] %6\n\t"
265 "wr %0, 0x0, %%fprs\n\t"
266 "membar #Sync"
267 : "=&r" (mask), "=&r" (val)
268 : "0" (mask), "1" (val),
269 "i" (FPRS_FEF), "r" (&cacheline[0]),
270 "i" (ASI_BLK_COMMIT_P));
271 }
272}
273
274static unsigned long schizo_ino_to_iclr(struct pci_pbm_info *pbm,
275 unsigned int ino)
276{
277 ino &= PCI_IRQ_INO;
278 return pbm->pbm_regs + schizo_iclr_offset(ino) + 4;
279}
280
281static unsigned long schizo_ino_to_imap(struct pci_pbm_info *pbm,
282 unsigned int ino)
283{
284 ino &= PCI_IRQ_INO;
285 return pbm->pbm_regs + schizo_imap_offset(ino) + 4;
286}
287
288static unsigned int schizo_irq_build(struct pci_pbm_info *pbm,
289 struct pci_dev *pdev,
290 unsigned int ino)
291{
292 unsigned long imap, iclr;
293 int ign_fixup;
294 int virt_irq;
295
296 ino &= PCI_IRQ_INO;
297
298 /* Now build the IRQ bucket. */
299 imap = schizo_ino_to_imap(pbm, ino);
300 iclr = schizo_ino_to_iclr(pbm, ino);
301
302 /* On Schizo, no inofixup occurs. This is because each
303 * INO has it's own IMAP register. On Psycho and Sabre
304 * there is only one IMAP register for each PCI slot even
305 * though four different INOs can be generated by each
306 * PCI slot.
307 *
308 * But, for JBUS variants (essentially, Tomatillo), we have
309 * to fixup the lowest bit of the interrupt group number.
310 */
311 ign_fixup = 0;
312 if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) {
313 if (pbm->portid & 1)
314 ign_fixup = (1 << 6);
315 }
316
317 virt_irq = build_irq(ign_fixup, iclr, imap);
318
319 if (pdev && pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) {
320 irq_install_pre_handler(virt_irq,
321 tomatillo_wsync_handler,
322 ((pbm->chip_version <= 4) ?
323 (void *) 1 : (void *) 0),
324 (void *) pbm->sync_reg);
325 }
326
327 return virt_irq;
328}
329
330/* SCHIZO error handling support. */ 220/* SCHIZO error handling support. */
331enum schizo_error_type { 221enum schizo_error_type {
332 UE_ERR, CE_ERR, PCI_ERR, SAFARI_ERR 222 UE_ERR, CE_ERR, PCI_ERR, SAFARI_ERR
@@ -362,34 +252,6 @@ struct pci_pbm_info *pbm_for_ino(struct pci_controller_info *p, u32 ino)
362 return &p->pbm_A; 252 return &p->pbm_A;
363} 253}
364 254
365static void schizo_clear_other_err_intr(struct pci_controller_info *p, int irq)
366{
367 struct pci_pbm_info *pbm;
368 unsigned long iclr;
369
370 /* Do not clear the interrupt for the other PCI bus.
371 *
372 * This "ACK both PBM IRQs" only needs to be performed
373 * for chip-wide error interrupts.
374 */
375 if ((irq & IMAP_INO) == SCHIZO_PCIERR_A_INO ||
376 (irq & IMAP_INO) == SCHIZO_PCIERR_B_INO)
377 return;
378
379 pbm = pbm_for_ino(p, irq);
380 if (pbm == &p->pbm_A)
381 pbm = &p->pbm_B;
382 else
383 pbm = &p->pbm_A;
384
385 schizo_irq_build(pbm, NULL,
386 (pbm->portid << 6) | (irq & IMAP_INO));
387
388 iclr = schizo_ino_to_iclr(pbm,
389 (pbm->portid << 6) | (irq & IMAP_INO));
390 upa_writel(ICLR_IDLE, iclr);
391}
392
393#define SCHIZO_STC_ERR 0xb800UL /* --> 0xba00 */ 255#define SCHIZO_STC_ERR 0xb800UL /* --> 0xba00 */
394#define SCHIZO_STC_TAG 0xba00UL /* --> 0xba80 */ 256#define SCHIZO_STC_TAG 0xba00UL /* --> 0xba80 */
395#define SCHIZO_STC_LINE 0xbb00UL /* --> 0xbb80 */ 257#define SCHIZO_STC_LINE 0xbb00UL /* --> 0xbb80 */
@@ -720,8 +582,6 @@ static irqreturn_t schizo_ue_intr(int irq, void *dev_id, struct pt_regs *regs)
720 /* Interrogate IOMMU for error status. */ 582 /* Interrogate IOMMU for error status. */
721 schizo_check_iommu_error(p, UE_ERR); 583 schizo_check_iommu_error(p, UE_ERR);
722 584
723 schizo_clear_other_err_intr(p, irq);
724
725 return IRQ_HANDLED; 585 return IRQ_HANDLED;
726} 586}
727 587
@@ -811,8 +671,6 @@ static irqreturn_t schizo_ce_intr(int irq, void *dev_id, struct pt_regs *regs)
811 printk("(none)"); 671 printk("(none)");
812 printk("]\n"); 672 printk("]\n");
813 673
814 schizo_clear_other_err_intr(p, irq);
815
816 return IRQ_HANDLED; 674 return IRQ_HANDLED;
817} 675}
818 676
@@ -1033,8 +891,6 @@ static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id, struct pt_regs *reg
1033 if (error_bits & (SCHIZO_PCIAFSR_PPERR | SCHIZO_PCIAFSR_SPERR)) 891 if (error_bits & (SCHIZO_PCIAFSR_PPERR | SCHIZO_PCIAFSR_SPERR))
1034 pci_scan_for_parity_error(p, pbm, pbm->pci_bus); 892 pci_scan_for_parity_error(p, pbm, pbm->pci_bus);
1035 893
1036 schizo_clear_other_err_intr(p, irq);
1037
1038 return IRQ_HANDLED; 894 return IRQ_HANDLED;
1039} 895}
1040 896
@@ -1090,7 +946,6 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id, struct pt_regs *
1090 printk("PCI%d: Unexpected Safari/JBUS error interrupt, errlog[%016lx]\n", 946 printk("PCI%d: Unexpected Safari/JBUS error interrupt, errlog[%016lx]\n",
1091 p->index, errlog); 947 p->index, errlog);
1092 948
1093 schizo_clear_other_err_intr(p, irq);
1094 return IRQ_HANDLED; 949 return IRQ_HANDLED;
1095 } 950 }
1096 951
@@ -1098,7 +953,6 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id, struct pt_regs *
1098 p->index); 953 p->index);
1099 schizo_check_iommu_error(p, SAFARI_ERR); 954 schizo_check_iommu_error(p, SAFARI_ERR);
1100 955
1101 schizo_clear_other_err_intr(p, irq);
1102 return IRQ_HANDLED; 956 return IRQ_HANDLED;
1103} 957}
1104 958
@@ -1130,74 +984,47 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id, struct pt_regs *
1130static void tomatillo_register_error_handlers(struct pci_controller_info *p) 984static void tomatillo_register_error_handlers(struct pci_controller_info *p)
1131{ 985{
1132 struct pci_pbm_info *pbm; 986 struct pci_pbm_info *pbm;
1133 unsigned int irq; 987 struct of_device *op;
1134 u64 tmp, err_mask, err_no_mask; 988 u64 tmp, err_mask, err_no_mask;
1135 989
1136 /* Build IRQs and register handlers. */ 990 /* Tomatillo IRQ property layout is:
991 * 0: PCIERR
992 * 1: UE ERR
993 * 2: CE ERR
994 * 3: SERR
995 * 4: POWER FAIL?
996 */
997
1137 pbm = pbm_for_ino(p, SCHIZO_UE_INO); 998 pbm = pbm_for_ino(p, SCHIZO_UE_INO);
1138 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_UE_INO); 999 op = of_find_device_by_node(pbm->prom_node);
1139 if (request_irq(irq, schizo_ue_intr, 1000 if (op)
1140 SA_SHIRQ, "TOMATILLO UE", p) < 0) { 1001 request_irq(op->irqs[1], schizo_ue_intr, SA_SHIRQ,
1141 prom_printf("%s: Cannot register UE interrupt.\n", 1002 "TOMATILLO_UE", p);
1142 pbm->name);
1143 prom_halt();
1144 }
1145 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_UE_INO));
1146 upa_writel(tmp, (pbm->pbm_regs +
1147 schizo_imap_offset(SCHIZO_UE_INO) + 4));
1148 1003
1149 pbm = pbm_for_ino(p, SCHIZO_CE_INO); 1004 pbm = pbm_for_ino(p, SCHIZO_CE_INO);
1150 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_CE_INO); 1005 op = of_find_device_by_node(pbm->prom_node);
1151 if (request_irq(irq, schizo_ce_intr, 1006 if (op)
1152 SA_SHIRQ, "TOMATILLO CE", p) < 0) { 1007 request_irq(op->irqs[2], schizo_ce_intr, SA_SHIRQ,
1153 prom_printf("%s: Cannot register CE interrupt.\n", 1008 "TOMATILLO CE", p);
1154 pbm->name);
1155 prom_halt();
1156 }
1157 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_CE_INO));
1158 upa_writel(tmp, (pbm->pbm_regs +
1159 schizo_imap_offset(SCHIZO_CE_INO) + 4));
1160 1009
1161 pbm = pbm_for_ino(p, SCHIZO_PCIERR_A_INO); 1010 pbm = pbm_for_ino(p, SCHIZO_PCIERR_A_INO);
1162 irq = schizo_irq_build(pbm, NULL, ((pbm->portid << 6) | 1011 op = of_find_device_by_node(pbm->prom_node);
1163 SCHIZO_PCIERR_A_INO)); 1012 if (op)
1164 if (request_irq(irq, schizo_pcierr_intr, 1013 request_irq(op->irqs[0], schizo_pcierr_intr, SA_SHIRQ,
1165 SA_SHIRQ, "TOMATILLO PCIERR", pbm) < 0) { 1014 "TOMATILLO PCIERR-A", pbm);
1166 prom_printf("%s: Cannot register PBM A PciERR interrupt.\n", 1015
1167 pbm->name);
1168 prom_halt();
1169 }
1170 tmp = upa_readl(schizo_ino_to_imap(pbm, ((pbm->portid << 6) |
1171 SCHIZO_PCIERR_A_INO)));
1172 upa_writel(tmp, (pbm->pbm_regs +
1173 schizo_imap_offset(SCHIZO_PCIERR_A_INO) + 4));
1174 1016
1175 pbm = pbm_for_ino(p, SCHIZO_PCIERR_B_INO); 1017 pbm = pbm_for_ino(p, SCHIZO_PCIERR_B_INO);
1176 irq = schizo_irq_build(pbm, NULL, ((pbm->portid << 6) | 1018 op = of_find_device_by_node(pbm->prom_node);
1177 SCHIZO_PCIERR_B_INO)); 1019 if (op)
1178 if (request_irq(irq, schizo_pcierr_intr, 1020 request_irq(op->irqs[0], schizo_pcierr_intr, SA_SHIRQ,
1179 SA_SHIRQ, "TOMATILLO PCIERR", pbm) < 0) { 1021 "TOMATILLO PCIERR-B", pbm);
1180 prom_printf("%s: Cannot register PBM B PciERR interrupt.\n",
1181 pbm->name);
1182 prom_halt();
1183 }
1184 tmp = upa_readl(schizo_ino_to_imap(pbm, ((pbm->portid << 6) |
1185 SCHIZO_PCIERR_B_INO)));
1186 upa_writel(tmp, (pbm->pbm_regs +
1187 schizo_imap_offset(SCHIZO_PCIERR_B_INO) + 4));
1188 1022
1189 pbm = pbm_for_ino(p, SCHIZO_SERR_INO); 1023 pbm = pbm_for_ino(p, SCHIZO_SERR_INO);
1190 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_SERR_INO); 1024 op = of_find_device_by_node(pbm->prom_node);
1191 if (request_irq(irq, schizo_safarierr_intr, 1025 if (op)
1192 SA_SHIRQ, "TOMATILLO SERR", p) < 0) { 1026 request_irq(op->irqs[3], schizo_safarierr_intr, SA_SHIRQ,
1193 prom_printf("%s: Cannot register SafariERR interrupt.\n", 1027 "TOMATILLO SERR", p);
1194 pbm->name);
1195 prom_halt();
1196 }
1197 tmp = upa_readl(schizo_ino_to_imap(pbm, ((pbm->portid << 6) |
1198 SCHIZO_SERR_INO)));
1199 upa_writel(tmp, (pbm->pbm_regs +
1200 schizo_imap_offset(SCHIZO_SERR_INO) + 4));
1201 1028
1202 /* Enable UE and CE interrupts for controller. */ 1029 /* Enable UE and CE interrupts for controller. */
1203 schizo_write(p->pbm_A.controller_regs + SCHIZO_ECC_CTRL, 1030 schizo_write(p->pbm_A.controller_regs + SCHIZO_ECC_CTRL,
@@ -1265,64 +1092,47 @@ static void tomatillo_register_error_handlers(struct pci_controller_info *p)
1265static void schizo_register_error_handlers(struct pci_controller_info *p) 1092static void schizo_register_error_handlers(struct pci_controller_info *p)
1266{ 1093{
1267 struct pci_pbm_info *pbm; 1094 struct pci_pbm_info *pbm;
1268 unsigned int irq; 1095 struct of_device *op;
1269 u64 tmp, err_mask, err_no_mask; 1096 u64 tmp, err_mask, err_no_mask;
1270 1097
1271 /* Build IRQs and register handlers. */ 1098 /* Schizo IRQ property layout is:
1099 * 0: PCIERR
1100 * 1: UE ERR
1101 * 2: CE ERR
1102 * 3: SERR
1103 * 4: POWER FAIL?
1104 */
1105
1272 pbm = pbm_for_ino(p, SCHIZO_UE_INO); 1106 pbm = pbm_for_ino(p, SCHIZO_UE_INO);
1273 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_UE_INO); 1107 op = of_find_device_by_node(pbm->prom_node);
1274 if (request_irq(irq, schizo_ue_intr, 1108 if (op)
1275 SA_SHIRQ, "SCHIZO UE", p) < 0) { 1109 request_irq(op->irqs[1], schizo_ue_intr, SA_SHIRQ,
1276 prom_printf("%s: Cannot register UE interrupt.\n", 1110 "SCHIZO_UE", p);
1277 pbm->name);
1278 prom_halt();
1279 }
1280 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_UE_INO));
1281 upa_writel(tmp, (pbm->pbm_regs + schizo_imap_offset(SCHIZO_UE_INO) + 4));
1282 1111
1283 pbm = pbm_for_ino(p, SCHIZO_CE_INO); 1112 pbm = pbm_for_ino(p, SCHIZO_CE_INO);
1284 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_CE_INO); 1113 op = of_find_device_by_node(pbm->prom_node);
1285 if (request_irq(irq, schizo_ce_intr, 1114 if (op)
1286 SA_SHIRQ, "SCHIZO CE", p) < 0) { 1115 request_irq(op->irqs[2], schizo_ce_intr, SA_SHIRQ,
1287 prom_printf("%s: Cannot register CE interrupt.\n", 1116 "SCHIZO CE", p);
1288 pbm->name);
1289 prom_halt();
1290 }
1291 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_CE_INO));
1292 upa_writel(tmp, (pbm->pbm_regs + schizo_imap_offset(SCHIZO_CE_INO) + 4));
1293 1117
1294 pbm = pbm_for_ino(p, SCHIZO_PCIERR_A_INO); 1118 pbm = pbm_for_ino(p, SCHIZO_PCIERR_A_INO);
1295 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_PCIERR_A_INO); 1119 op = of_find_device_by_node(pbm->prom_node);
1296 if (request_irq(irq, schizo_pcierr_intr, 1120 if (op)
1297 SA_SHIRQ, "SCHIZO PCIERR", pbm) < 0) { 1121 request_irq(op->irqs[0], schizo_pcierr_intr, SA_SHIRQ,
1298 prom_printf("%s: Cannot register PBM A PciERR interrupt.\n", 1122 "SCHIZO PCIERR-A", pbm);
1299 pbm->name); 1123
1300 prom_halt();
1301 }
1302 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_PCIERR_A_INO));
1303 upa_writel(tmp, (pbm->pbm_regs + schizo_imap_offset(SCHIZO_PCIERR_A_INO) + 4));
1304 1124
1305 pbm = pbm_for_ino(p, SCHIZO_PCIERR_B_INO); 1125 pbm = pbm_for_ino(p, SCHIZO_PCIERR_B_INO);
1306 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_PCIERR_B_INO); 1126 op = of_find_device_by_node(pbm->prom_node);
1307 if (request_irq(irq, schizo_pcierr_intr, 1127 if (op)
1308 SA_SHIRQ, "SCHIZO PCIERR", &p->pbm_B) < 0) { 1128 request_irq(op->irqs[0], schizo_pcierr_intr, SA_SHIRQ,
1309 prom_printf("%s: Cannot register PBM B PciERR interrupt.\n", 1129 "SCHIZO PCIERR-B", pbm);
1310 pbm->name);
1311 prom_halt();
1312 }
1313 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_PCIERR_B_INO));
1314 upa_writel(tmp, (pbm->pbm_regs + schizo_imap_offset(SCHIZO_PCIERR_B_INO) + 4));
1315 1130
1316 pbm = pbm_for_ino(p, SCHIZO_SERR_INO); 1131 pbm = pbm_for_ino(p, SCHIZO_SERR_INO);
1317 irq = schizo_irq_build(pbm, NULL, (pbm->portid << 6) | SCHIZO_SERR_INO); 1132 op = of_find_device_by_node(pbm->prom_node);
1318 if (request_irq(irq, schizo_safarierr_intr, 1133 if (op)
1319 SA_SHIRQ, "SCHIZO SERR", p) < 0) { 1134 request_irq(op->irqs[3], schizo_safarierr_intr, SA_SHIRQ,
1320 prom_printf("%s: Cannot register SafariERR interrupt.\n", 1135 "SCHIZO SERR", p);
1321 pbm->name);
1322 prom_halt();
1323 }
1324 tmp = upa_readl(schizo_ino_to_imap(pbm, (pbm->portid << 6) | SCHIZO_SERR_INO));
1325 upa_writel(tmp, (pbm->pbm_regs + schizo_imap_offset(SCHIZO_SERR_INO) + 4));
1326 1136
1327 /* Enable UE and CE interrupts for controller. */ 1137 /* Enable UE and CE interrupts for controller. */
1328 schizo_write(p->pbm_A.controller_regs + SCHIZO_ECC_CTRL, 1138 schizo_write(p->pbm_A.controller_regs + SCHIZO_ECC_CTRL,
@@ -2022,7 +1832,6 @@ static void __schizo_init(struct device_node *dp, char *model_name, int chip_typ
2022 p->scan_bus = (chip_type == PBM_CHIP_TYPE_TOMATILLO ? 1832 p->scan_bus = (chip_type == PBM_CHIP_TYPE_TOMATILLO ?
2023 tomatillo_scan_bus : 1833 tomatillo_scan_bus :
2024 schizo_scan_bus); 1834 schizo_scan_bus);
2025 p->irq_build = schizo_irq_build;
2026 p->base_address_update = schizo_base_address_update; 1835 p->base_address_update = schizo_base_address_update;
2027 p->resource_adjust = schizo_resource_adjust; 1836 p->resource_adjust = schizo_resource_adjust;
2028 p->pci_ops = &schizo_ops; 1837 p->pci_ops = &schizo_ops;
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index b69e2270a72..03ad4c06758 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -843,15 +843,6 @@ static void pci_sun4v_scan_bus(struct pci_controller_info *p)
843 /* XXX register error interrupt handlers XXX */ 843 /* XXX register error interrupt handlers XXX */
844} 844}
845 845
846static unsigned int pci_sun4v_irq_build(struct pci_pbm_info *pbm,
847 struct pci_dev *pdev,
848 unsigned int devino)
849{
850 u32 devhandle = pbm->devhandle;
851
852 return sun4v_build_irq(devhandle, devino);
853}
854
855static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource) 846static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource)
856{ 847{
857 struct pcidev_cookie *pcp = pdev->sysdata; 848 struct pcidev_cookie *pcp = pdev->sysdata;
@@ -1200,7 +1191,6 @@ void sun4v_pci_init(struct device_node *dp, char *model_name)
1200 p->pbms_same_domain = 0; 1191 p->pbms_same_domain = 0;
1201 1192
1202 p->scan_bus = pci_sun4v_scan_bus; 1193 p->scan_bus = pci_sun4v_scan_bus;
1203 p->irq_build = pci_sun4v_irq_build;
1204 p->base_address_update = pci_sun4v_base_address_update; 1194 p->base_address_update = pci_sun4v_base_address_update;
1205 p->resource_adjust = pci_sun4v_resource_adjust; 1195 p->resource_adjust = pci_sun4v_resource_adjust;
1206 p->pci_ops = &pci_sun4v_ops; 1196 p->pci_ops = &pci_sun4v_ops;
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index 6aa856a1815..8a70c52c044 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -15,6 +15,7 @@
15 * 2 of the License, or (at your option) any later version. 15 * 2 of the License, or (at your option) any later version.
16 */ 16 */
17 17
18#include <linux/config.h>
18#include <linux/kernel.h> 19#include <linux/kernel.h>
19#include <linux/types.h> 20#include <linux/types.h>
20#include <linux/string.h> 21#include <linux/string.h>
@@ -23,7 +24,11 @@
23#include <linux/module.h> 24#include <linux/module.h>
24 25
25#include <asm/prom.h> 26#include <asm/prom.h>
27#include <asm/of_device.h>
26#include <asm/oplib.h> 28#include <asm/oplib.h>
29#include <asm/irq.h>
30#include <asm/asi.h>
31#include <asm/upa.h>
27 32
28static struct device_node *allnodes; 33static struct device_node *allnodes;
29 34
@@ -283,6 +288,754 @@ static void * __init prom_early_alloc(unsigned long size)
283 return ret; 288 return ret;
284} 289}
285 290
291#ifdef CONFIG_PCI
292/* PSYCHO interrupt mapping support. */
293#define PSYCHO_IMAP_A_SLOT0 0x0c00UL
294#define PSYCHO_IMAP_B_SLOT0 0x0c20UL
295static unsigned long psycho_pcislot_imap_offset(unsigned long ino)
296{
297 unsigned int bus = (ino & 0x10) >> 4;
298 unsigned int slot = (ino & 0x0c) >> 2;
299
300 if (bus == 0)
301 return PSYCHO_IMAP_A_SLOT0 + (slot * 8);
302 else
303 return PSYCHO_IMAP_B_SLOT0 + (slot * 8);
304}
305
306#define PSYCHO_IMAP_SCSI 0x1000UL
307#define PSYCHO_IMAP_ETH 0x1008UL
308#define PSYCHO_IMAP_BPP 0x1010UL
309#define PSYCHO_IMAP_AU_REC 0x1018UL
310#define PSYCHO_IMAP_AU_PLAY 0x1020UL
311#define PSYCHO_IMAP_PFAIL 0x1028UL
312#define PSYCHO_IMAP_KMS 0x1030UL
313#define PSYCHO_IMAP_FLPY 0x1038UL
314#define PSYCHO_IMAP_SHW 0x1040UL
315#define PSYCHO_IMAP_KBD 0x1048UL
316#define PSYCHO_IMAP_MS 0x1050UL
317#define PSYCHO_IMAP_SER 0x1058UL
318#define PSYCHO_IMAP_TIM0 0x1060UL
319#define PSYCHO_IMAP_TIM1 0x1068UL
320#define PSYCHO_IMAP_UE 0x1070UL
321#define PSYCHO_IMAP_CE 0x1078UL
322#define PSYCHO_IMAP_A_ERR 0x1080UL
323#define PSYCHO_IMAP_B_ERR 0x1088UL
324#define PSYCHO_IMAP_PMGMT 0x1090UL
325#define PSYCHO_IMAP_GFX 0x1098UL
326#define PSYCHO_IMAP_EUPA 0x10a0UL
327
328static unsigned long __psycho_onboard_imap_off[] = {
329/*0x20*/ PSYCHO_IMAP_SCSI,
330/*0x21*/ PSYCHO_IMAP_ETH,
331/*0x22*/ PSYCHO_IMAP_BPP,
332/*0x23*/ PSYCHO_IMAP_AU_REC,
333/*0x24*/ PSYCHO_IMAP_AU_PLAY,
334/*0x25*/ PSYCHO_IMAP_PFAIL,
335/*0x26*/ PSYCHO_IMAP_KMS,
336/*0x27*/ PSYCHO_IMAP_FLPY,
337/*0x28*/ PSYCHO_IMAP_SHW,
338/*0x29*/ PSYCHO_IMAP_KBD,
339/*0x2a*/ PSYCHO_IMAP_MS,
340/*0x2b*/ PSYCHO_IMAP_SER,
341/*0x2c*/ PSYCHO_IMAP_TIM0,
342/*0x2d*/ PSYCHO_IMAP_TIM1,
343/*0x2e*/ PSYCHO_IMAP_UE,
344/*0x2f*/ PSYCHO_IMAP_CE,
345/*0x30*/ PSYCHO_IMAP_A_ERR,
346/*0x31*/ PSYCHO_IMAP_B_ERR,
347/*0x32*/ PSYCHO_IMAP_PMGMT
348};
349#define PSYCHO_ONBOARD_IRQ_BASE 0x20
350#define PSYCHO_ONBOARD_IRQ_LAST 0x32
351#define psycho_onboard_imap_offset(__ino) \
352 __psycho_onboard_imap_off[(__ino) - PSYCHO_ONBOARD_IRQ_BASE]
353
354#define PSYCHO_ICLR_A_SLOT0 0x1400UL
355#define PSYCHO_ICLR_SCSI 0x1800UL
356
357#define psycho_iclr_offset(ino) \
358 ((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
359 (PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
360
361static unsigned int psycho_irq_build(struct device_node *dp,
362 unsigned int ino,
363 void *_data)
364{
365 unsigned long controller_regs = (unsigned long) _data;
366 unsigned long imap, iclr;
367 unsigned long imap_off, iclr_off;
368 int inofixup = 0;
369
370 ino &= 0x3f;
371 if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
372 /* PCI slot */
373 imap_off = psycho_pcislot_imap_offset(ino);
374 } else {
375 /* Onboard device */
376 if (ino > PSYCHO_ONBOARD_IRQ_LAST) {
377 prom_printf("psycho_irq_build: Wacky INO [%x]\n", ino);
378 prom_halt();
379 }
380 imap_off = psycho_onboard_imap_offset(ino);
381 }
382
383 /* Now build the IRQ bucket. */
384 imap = controller_regs + imap_off;
385 imap += 4;
386
387 iclr_off = psycho_iclr_offset(ino);
388 iclr = controller_regs + iclr_off;
389 iclr += 4;
390
391 if ((ino & 0x20) == 0)
392 inofixup = ino & 0x03;
393
394 return build_irq(inofixup, iclr, imap);
395}
396
397static void psycho_irq_trans_init(struct device_node *dp)
398{
399 struct linux_prom64_registers *regs;
400
401 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
402 dp->irq_trans->irq_build = psycho_irq_build;
403
404 regs = of_get_property(dp, "reg", NULL);
405 dp->irq_trans->data = (void *) regs[2].phys_addr;
406}
407
408#define sabre_read(__reg) \
409({ u64 __ret; \
410 __asm__ __volatile__("ldxa [%1] %2, %0" \
411 : "=r" (__ret) \
412 : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
413 : "memory"); \
414 __ret; \
415})
416
417struct sabre_irq_data {
418 unsigned long controller_regs;
419 unsigned int pci_first_busno;
420};
421#define SABRE_CONFIGSPACE 0x001000000UL
422#define SABRE_WRSYNC 0x1c20UL
423
424#define SABRE_CONFIG_BASE(CONFIG_SPACE) \
425 (CONFIG_SPACE | (1UL << 24))
426#define SABRE_CONFIG_ENCODE(BUS, DEVFN, REG) \
427 (((unsigned long)(BUS) << 16) | \
428 ((unsigned long)(DEVFN) << 8) | \
429 ((unsigned long)(REG)))
430
431/* When a device lives behind a bridge deeper in the PCI bus topology
432 * than APB, a special sequence must run to make sure all pending DMA
433 * transfers at the time of IRQ delivery are visible in the coherency
434 * domain by the cpu. This sequence is to perform a read on the far
435 * side of the non-APB bridge, then perform a read of Sabre's DMA
436 * write-sync register.
437 */
438static void sabre_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
439{
440 unsigned int phys_hi = (unsigned int) (unsigned long) _arg1;
441 struct sabre_irq_data *irq_data = _arg2;
442 unsigned long controller_regs = irq_data->controller_regs;
443 unsigned long sync_reg = controller_regs + SABRE_WRSYNC;
444 unsigned long config_space = controller_regs + SABRE_CONFIGSPACE;
445 unsigned int bus, devfn;
446 u16 _unused;
447
448 config_space = SABRE_CONFIG_BASE(config_space);
449
450 bus = (phys_hi >> 16) & 0xff;
451 devfn = (phys_hi >> 8) & 0xff;
452
453 config_space |= SABRE_CONFIG_ENCODE(bus, devfn, 0x00);
454
455 __asm__ __volatile__("membar #Sync\n\t"
456 "lduha [%1] %2, %0\n\t"
457 "membar #Sync"
458 : "=r" (_unused)
459 : "r" ((u16 *) config_space),
460 "i" (ASI_PHYS_BYPASS_EC_E_L)
461 : "memory");
462
463 sabre_read(sync_reg);
464}
465
466#define SABRE_IMAP_A_SLOT0 0x0c00UL
467#define SABRE_IMAP_B_SLOT0 0x0c20UL
468#define SABRE_IMAP_SCSI 0x1000UL
469#define SABRE_IMAP_ETH 0x1008UL
470#define SABRE_IMAP_BPP 0x1010UL
471#define SABRE_IMAP_AU_REC 0x1018UL
472#define SABRE_IMAP_AU_PLAY 0x1020UL
473#define SABRE_IMAP_PFAIL 0x1028UL
474#define SABRE_IMAP_KMS 0x1030UL
475#define SABRE_IMAP_FLPY 0x1038UL
476#define SABRE_IMAP_SHW 0x1040UL
477#define SABRE_IMAP_KBD 0x1048UL
478#define SABRE_IMAP_MS 0x1050UL
479#define SABRE_IMAP_SER 0x1058UL
480#define SABRE_IMAP_UE 0x1070UL
481#define SABRE_IMAP_CE 0x1078UL
482#define SABRE_IMAP_PCIERR 0x1080UL
483#define SABRE_IMAP_GFX 0x1098UL
484#define SABRE_IMAP_EUPA 0x10a0UL
485#define SABRE_ICLR_A_SLOT0 0x1400UL
486#define SABRE_ICLR_B_SLOT0 0x1480UL
487#define SABRE_ICLR_SCSI 0x1800UL
488#define SABRE_ICLR_ETH 0x1808UL
489#define SABRE_ICLR_BPP 0x1810UL
490#define SABRE_ICLR_AU_REC 0x1818UL
491#define SABRE_ICLR_AU_PLAY 0x1820UL
492#define SABRE_ICLR_PFAIL 0x1828UL
493#define SABRE_ICLR_KMS 0x1830UL
494#define SABRE_ICLR_FLPY 0x1838UL
495#define SABRE_ICLR_SHW 0x1840UL
496#define SABRE_ICLR_KBD 0x1848UL
497#define SABRE_ICLR_MS 0x1850UL
498#define SABRE_ICLR_SER 0x1858UL
499#define SABRE_ICLR_UE 0x1870UL
500#define SABRE_ICLR_CE 0x1878UL
501#define SABRE_ICLR_PCIERR 0x1880UL
502
503static unsigned long sabre_pcislot_imap_offset(unsigned long ino)
504{
505 unsigned int bus = (ino & 0x10) >> 4;
506 unsigned int slot = (ino & 0x0c) >> 2;
507
508 if (bus == 0)
509 return SABRE_IMAP_A_SLOT0 + (slot * 8);
510 else
511 return SABRE_IMAP_B_SLOT0 + (slot * 8);
512}
513
514static unsigned long __sabre_onboard_imap_off[] = {
515/*0x20*/ SABRE_IMAP_SCSI,
516/*0x21*/ SABRE_IMAP_ETH,
517/*0x22*/ SABRE_IMAP_BPP,
518/*0x23*/ SABRE_IMAP_AU_REC,
519/*0x24*/ SABRE_IMAP_AU_PLAY,
520/*0x25*/ SABRE_IMAP_PFAIL,
521/*0x26*/ SABRE_IMAP_KMS,
522/*0x27*/ SABRE_IMAP_FLPY,
523/*0x28*/ SABRE_IMAP_SHW,
524/*0x29*/ SABRE_IMAP_KBD,
525/*0x2a*/ SABRE_IMAP_MS,
526/*0x2b*/ SABRE_IMAP_SER,
527/*0x2c*/ 0 /* reserved */,
528/*0x2d*/ 0 /* reserved */,
529/*0x2e*/ SABRE_IMAP_UE,
530/*0x2f*/ SABRE_IMAP_CE,
531/*0x30*/ SABRE_IMAP_PCIERR,
532};
533#define SABRE_ONBOARD_IRQ_BASE 0x20
534#define SABRE_ONBOARD_IRQ_LAST 0x30
535#define sabre_onboard_imap_offset(__ino) \
536 __sabre_onboard_imap_off[(__ino) - SABRE_ONBOARD_IRQ_BASE]
537
538#define sabre_iclr_offset(ino) \
539 ((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
540 (SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
541
542static unsigned int sabre_irq_build(struct device_node *dp,
543 unsigned int ino,
544 void *_data)
545{
546 struct sabre_irq_data *irq_data = _data;
547 unsigned long controller_regs = irq_data->controller_regs;
548 struct linux_prom_pci_registers *regs;
549 unsigned long imap, iclr;
550 unsigned long imap_off, iclr_off;
551 int inofixup = 0;
552 int virt_irq;
553
554 ino &= 0x3f;
555 if (ino < SABRE_ONBOARD_IRQ_BASE) {
556 /* PCI slot */
557 imap_off = sabre_pcislot_imap_offset(ino);
558 } else {
559 /* onboard device */
560 if (ino > SABRE_ONBOARD_IRQ_LAST) {
561 prom_printf("sabre_irq_build: Wacky INO [%x]\n", ino);
562 prom_halt();
563 }
564 imap_off = sabre_onboard_imap_offset(ino);
565 }
566
567 /* Now build the IRQ bucket. */
568 imap = controller_regs + imap_off;
569 imap += 4;
570
571 iclr_off = sabre_iclr_offset(ino);
572 iclr = controller_regs + iclr_off;
573 iclr += 4;
574
575 if ((ino & 0x20) == 0)
576 inofixup = ino & 0x03;
577
578 virt_irq = build_irq(inofixup, iclr, imap);
579
580 regs = of_get_property(dp, "reg", NULL);
581 if (regs &&
582 ((regs->phys_hi >> 16) & 0xff) != irq_data->pci_first_busno) {
583 irq_install_pre_handler(virt_irq,
584 sabre_wsync_handler,
585 (void *) (long) regs->phys_hi,
586 (void *)
587 controller_regs +
588 SABRE_WRSYNC);
589 }
590
591 return virt_irq;
592}
593
594static void sabre_irq_trans_init(struct device_node *dp)
595{
596 struct linux_prom64_registers *regs;
597 struct sabre_irq_data *irq_data;
598 u32 *busrange;
599
600 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
601 dp->irq_trans->irq_build = sabre_irq_build;
602
603 irq_data = prom_early_alloc(sizeof(struct sabre_irq_data));
604
605 regs = of_get_property(dp, "reg", NULL);
606 irq_data->controller_regs = regs[0].phys_addr;
607
608 busrange = of_get_property(dp, "bus-range", NULL);
609 irq_data->pci_first_busno = busrange[0];
610
611 dp->irq_trans->data = irq_data;
612}
613
614/* SCHIZO interrupt mapping support. Unlike Psycho, for this controller the
615 * imap/iclr registers are per-PBM.
616 */
617#define SCHIZO_IMAP_BASE 0x1000UL
618#define SCHIZO_ICLR_BASE 0x1400UL
619
620static unsigned long schizo_imap_offset(unsigned long ino)
621{
622 return SCHIZO_IMAP_BASE + (ino * 8UL);
623}
624
625static unsigned long schizo_iclr_offset(unsigned long ino)
626{
627 return SCHIZO_ICLR_BASE + (ino * 8UL);
628}
629
630static unsigned long schizo_ino_to_iclr(unsigned long pbm_regs,
631 unsigned int ino)
632{
633 return pbm_regs + schizo_iclr_offset(ino) + 4;
634}
635
636static unsigned long schizo_ino_to_imap(unsigned long pbm_regs,
637 unsigned int ino)
638{
639 return pbm_regs + schizo_imap_offset(ino) + 4;
640}
641
642#define schizo_read(__reg) \
643({ u64 __ret; \
644 __asm__ __volatile__("ldxa [%1] %2, %0" \
645 : "=r" (__ret) \
646 : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
647 : "memory"); \
648 __ret; \
649})
650#define schizo_write(__reg, __val) \
651 __asm__ __volatile__("stxa %0, [%1] %2" \
652 : /* no outputs */ \
653 : "r" (__val), "r" (__reg), \
654 "i" (ASI_PHYS_BYPASS_EC_E) \
655 : "memory")
656
657static void tomatillo_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
658{
659 unsigned long sync_reg = (unsigned long) _arg2;
660 u64 mask = 1UL << (ino & IMAP_INO);
661 u64 val;
662 int limit;
663
664 schizo_write(sync_reg, mask);
665
666 limit = 100000;
667 val = 0;
668 while (--limit) {
669 val = schizo_read(sync_reg);
670 if (!(val & mask))
671 break;
672 }
673 if (limit <= 0) {
674 printk("tomatillo_wsync_handler: DMA won't sync [%lx:%lx]\n",
675 val, mask);
676 }
677
678 if (_arg1) {
679 static unsigned char cacheline[64]
680 __attribute__ ((aligned (64)));
681
682 __asm__ __volatile__("rd %%fprs, %0\n\t"
683 "or %0, %4, %1\n\t"
684 "wr %1, 0x0, %%fprs\n\t"
685 "stda %%f0, [%5] %6\n\t"
686 "wr %0, 0x0, %%fprs\n\t"
687 "membar #Sync"
688 : "=&r" (mask), "=&r" (val)
689 : "0" (mask), "1" (val),
690 "i" (FPRS_FEF), "r" (&cacheline[0]),
691 "i" (ASI_BLK_COMMIT_P));
692 }
693}
694
695struct schizo_irq_data {
696 unsigned long pbm_regs;
697 unsigned long sync_reg;
698 u32 portid;
699 int chip_version;
700};
701
702static unsigned int schizo_irq_build(struct device_node *dp,
703 unsigned int ino,
704 void *_data)
705{
706 struct schizo_irq_data *irq_data = _data;
707 unsigned long pbm_regs = irq_data->pbm_regs;
708 unsigned long imap, iclr;
709 int ign_fixup;
710 int virt_irq;
711 int is_tomatillo;
712
713 ino &= 0x3f;
714
715 /* Now build the IRQ bucket. */
716 imap = schizo_ino_to_imap(pbm_regs, ino);
717 iclr = schizo_ino_to_iclr(pbm_regs, ino);
718
719 /* On Schizo, no inofixup occurs. This is because each
720 * INO has it's own IMAP register. On Psycho and Sabre
721 * there is only one IMAP register for each PCI slot even
722 * though four different INOs can be generated by each
723 * PCI slot.
724 *
725 * But, for JBUS variants (essentially, Tomatillo), we have
726 * to fixup the lowest bit of the interrupt group number.
727 */
728 ign_fixup = 0;
729
730 is_tomatillo = (irq_data->sync_reg != 0UL);
731
732 if (is_tomatillo) {
733 if (irq_data->portid & 1)
734 ign_fixup = (1 << 6);
735 }
736
737 virt_irq = build_irq(ign_fixup, iclr, imap);
738
739 if (is_tomatillo) {
740 irq_install_pre_handler(virt_irq,
741 tomatillo_wsync_handler,
742 ((irq_data->chip_version <= 4) ?
743 (void *) 1 : (void *) 0),
744 (void *) irq_data->sync_reg);
745 }
746
747 return virt_irq;
748}
749
750static void schizo_irq_trans_init(struct device_node *dp)
751{
752 struct linux_prom64_registers *regs;
753 struct schizo_irq_data *irq_data;
754
755 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
756 dp->irq_trans->irq_build = schizo_irq_build;
757
758 irq_data = prom_early_alloc(sizeof(struct schizo_irq_data));
759
760 regs = of_get_property(dp, "reg", NULL);
761 dp->irq_trans->data = irq_data;
762
763 irq_data->pbm_regs = regs[0].phys_addr;
764 irq_data->sync_reg = regs[3].phys_addr + 0x1a18UL;
765 irq_data->portid = of_getintprop_default(dp, "portid", 0);
766 irq_data->chip_version = of_getintprop_default(dp, "version#", 0);
767}
768
769static unsigned int pci_sun4v_irq_build(struct device_node *dp,
770 unsigned int devino,
771 void *_data)
772{
773 u32 devhandle = (u32) (unsigned long) _data;
774
775 return sun4v_build_irq(devhandle, devino);
776}
777
778static void pci_sun4v_irq_trans_init(struct device_node *dp)
779{
780 struct linux_prom64_registers *regs;
781
782 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
783 dp->irq_trans->irq_build = pci_sun4v_irq_build;
784
785 regs = of_get_property(dp, "reg", NULL);
786 dp->irq_trans->data = (void *) (unsigned long)
787 ((regs->phys_addr >> 32UL) & 0x0fffffff);
788}
789#endif /* CONFIG_PCI */
790
791#ifdef CONFIG_SBUS
792/* INO number to IMAP register offset for SYSIO external IRQ's.
793 * This should conform to both Sunfire/Wildfire server and Fusion
794 * desktop designs.
795 */
796#define SYSIO_IMAP_SLOT0 0x2c04UL
797#define SYSIO_IMAP_SLOT1 0x2c0cUL
798#define SYSIO_IMAP_SLOT2 0x2c14UL
799#define SYSIO_IMAP_SLOT3 0x2c1cUL
800#define SYSIO_IMAP_SCSI 0x3004UL
801#define SYSIO_IMAP_ETH 0x300cUL
802#define SYSIO_IMAP_BPP 0x3014UL
803#define SYSIO_IMAP_AUDIO 0x301cUL
804#define SYSIO_IMAP_PFAIL 0x3024UL
805#define SYSIO_IMAP_KMS 0x302cUL
806#define SYSIO_IMAP_FLPY 0x3034UL
807#define SYSIO_IMAP_SHW 0x303cUL
808#define SYSIO_IMAP_KBD 0x3044UL
809#define SYSIO_IMAP_MS 0x304cUL
810#define SYSIO_IMAP_SER 0x3054UL
811#define SYSIO_IMAP_TIM0 0x3064UL
812#define SYSIO_IMAP_TIM1 0x306cUL
813#define SYSIO_IMAP_UE 0x3074UL
814#define SYSIO_IMAP_CE 0x307cUL
815#define SYSIO_IMAP_SBERR 0x3084UL
816#define SYSIO_IMAP_PMGMT 0x308cUL
817#define SYSIO_IMAP_GFX 0x3094UL
818#define SYSIO_IMAP_EUPA 0x309cUL
819
820#define bogon ((unsigned long) -1)
821static unsigned long sysio_irq_offsets[] = {
822 /* SBUS Slot 0 --> 3, level 1 --> 7 */
823 SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
824 SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
825 SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
826 SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
827 SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
828 SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
829 SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
830 SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
831
832 /* Onboard devices (not relevant/used on SunFire). */
833 SYSIO_IMAP_SCSI,
834 SYSIO_IMAP_ETH,
835 SYSIO_IMAP_BPP,
836 bogon,
837 SYSIO_IMAP_AUDIO,
838 SYSIO_IMAP_PFAIL,
839 bogon,
840 bogon,
841 SYSIO_IMAP_KMS,
842 SYSIO_IMAP_FLPY,
843 SYSIO_IMAP_SHW,
844 SYSIO_IMAP_KBD,
845 SYSIO_IMAP_MS,
846 SYSIO_IMAP_SER,
847 bogon,
848 bogon,
849 SYSIO_IMAP_TIM0,
850 SYSIO_IMAP_TIM1,
851 bogon,
852 bogon,
853 SYSIO_IMAP_UE,
854 SYSIO_IMAP_CE,
855 SYSIO_IMAP_SBERR,
856 SYSIO_IMAP_PMGMT,
857};
858
859#undef bogon
860
861#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets)
862
863/* Convert Interrupt Mapping register pointer to associated
864 * Interrupt Clear register pointer, SYSIO specific version.
865 */
866#define SYSIO_ICLR_UNUSED0 0x3400UL
867#define SYSIO_ICLR_SLOT0 0x340cUL
868#define SYSIO_ICLR_SLOT1 0x344cUL
869#define SYSIO_ICLR_SLOT2 0x348cUL
870#define SYSIO_ICLR_SLOT3 0x34ccUL
871static unsigned long sysio_imap_to_iclr(unsigned long imap)
872{
873 unsigned long diff = SYSIO_ICLR_UNUSED0 - SYSIO_IMAP_SLOT0;
874 return imap + diff;
875}
876
877static unsigned int sbus_of_build_irq(struct device_node *dp,
878 unsigned int ino,
879 void *_data)
880{
881 unsigned long reg_base = (unsigned long) _data;
882 struct linux_prom_registers *regs;
883 unsigned long imap, iclr;
884 int sbus_slot = 0;
885 int sbus_level = 0;
886
887 ino &= 0x3f;
888
889 regs = of_get_property(dp, "reg", NULL);
890 if (regs)
891 sbus_slot = regs->which_io;
892
893 if (ino < 0x20)
894 ino += (sbus_slot * 8);
895
896 imap = sysio_irq_offsets[ino];
897 if (imap == ((unsigned long)-1)) {
898 prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n",
899 ino);
900 prom_halt();
901 }
902 imap += reg_base;
903
904 /* SYSIO inconsistency. For external SLOTS, we have to select
905 * the right ICLR register based upon the lower SBUS irq level
906 * bits.
907 */
908 if (ino >= 0x20) {
909 iclr = sysio_imap_to_iclr(imap);
910 } else {
911 sbus_level = ino & 0x7;
912
913 switch(sbus_slot) {
914 case 0:
915 iclr = reg_base + SYSIO_ICLR_SLOT0;
916 break;
917 case 1:
918 iclr = reg_base + SYSIO_ICLR_SLOT1;
919 break;
920 case 2:
921 iclr = reg_base + SYSIO_ICLR_SLOT2;
922 break;
923 default:
924 case 3:
925 iclr = reg_base + SYSIO_ICLR_SLOT3;
926 break;
927 };
928
929 iclr += ((unsigned long)sbus_level - 1UL) * 8UL;
930 }
931 return build_irq(sbus_level, iclr, imap);
932}
933
934static void sbus_irq_trans_init(struct device_node *dp)
935{
936 struct linux_prom64_registers *regs;
937
938 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
939 dp->irq_trans->irq_build = sbus_of_build_irq;
940
941 regs = of_get_property(dp, "reg", NULL);
942 dp->irq_trans->data = (void *) (unsigned long) regs->phys_addr;
943}
944#endif /* CONFIG_SBUS */
945
946
947static unsigned int central_build_irq(struct device_node *dp,
948 unsigned int ino,
949 void *_data)
950{
951 struct device_node *central_dp = _data;
952 struct of_device *central_op = of_find_device_by_node(central_dp);
953 struct resource *res;
954 unsigned long imap, iclr;
955 u32 tmp;
956
957 if (!strcmp(dp->name, "eeprom")) {
958 res = &central_op->resource[5];
959 } else if (!strcmp(dp->name, "zs")) {
960 res = &central_op->resource[4];
961 } else if (!strcmp(dp->name, "clock-board")) {
962 res = &central_op->resource[3];
963 } else {
964 return ino;
965 }
966
967 imap = res->start + 0x00UL;
968 iclr = res->start + 0x10UL;
969
970 /* Set the INO state to idle, and disable. */
971 upa_writel(0, iclr);
972 upa_readl(iclr);
973
974 tmp = upa_readl(imap);
975 tmp &= ~0x80000000;
976 upa_writel(tmp, imap);
977
978 return build_irq(0, iclr, imap);
979}
980
981static void central_irq_trans_init(struct device_node *dp)
982{
983 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
984 dp->irq_trans->irq_build = central_build_irq;
985
986 dp->irq_trans->data = dp;
987}
988
989struct irq_trans {
990 const char *name;
991 void (*init)(struct device_node *);
992};
993
994#ifdef CONFIG_PCI
995static struct irq_trans pci_irq_trans_table[] = {
996 { "SUNW,sabre", sabre_irq_trans_init },
997 { "pci108e,a000", sabre_irq_trans_init },
998 { "pci108e,a001", sabre_irq_trans_init },
999 { "SUNW,psycho", psycho_irq_trans_init },
1000 { "pci108e,8000", psycho_irq_trans_init },
1001 { "SUNW,schizo", schizo_irq_trans_init },
1002 { "pci108e,8001", schizo_irq_trans_init },
1003 { "SUNW,schizo+", schizo_irq_trans_init },
1004 { "pci108e,8002", schizo_irq_trans_init },
1005 { "SUNW,tomatillo", schizo_irq_trans_init },
1006 { "pci108e,a801", schizo_irq_trans_init },
1007 { "SUNW,sun4v-pci", pci_sun4v_irq_trans_init },
1008};
1009#endif
1010
1011static void irq_trans_init(struct device_node *dp)
1012{
1013 const char *model;
1014 int i;
1015
1016 model = of_get_property(dp, "model", NULL);
1017 if (!model)
1018 model = of_get_property(dp, "compatible", NULL);
1019 if (!model)
1020 return;
1021
1022#ifdef CONFIG_PCI
1023 for (i = 0; i < ARRAY_SIZE(pci_irq_trans_table); i++) {
1024 struct irq_trans *t = &pci_irq_trans_table[i];
1025
1026 if (!strcmp(model, t->name))
1027 return t->init(dp);
1028 }
1029#endif
1030#ifdef CONFIG_SBUS
1031 if (!strcmp(dp->name, "sbus") ||
1032 !strcmp(dp->name, "sbi"))
1033 return sbus_irq_trans_init(dp);
1034#endif
1035 if (!strcmp(dp->name, "central"))
1036 return central_irq_trans_init(dp->child);
1037}
1038
286static int is_root_node(const struct device_node *dp) 1039static int is_root_node(const struct device_node *dp)
287{ 1040{
288 if (!dp) 1041 if (!dp)
@@ -706,10 +1459,10 @@ static struct device_node * __init create_node(phandle node)
706 dp->type = get_one_property(node, "device_type"); 1459 dp->type = get_one_property(node, "device_type");
707 dp->node = node; 1460 dp->node = node;
708 1461
709 /* Build interrupts later... */
710
711 dp->properties = build_prop_list(node); 1462 dp->properties = build_prop_list(node);
712 1463
1464 irq_trans_init(dp);
1465
713 return dp; 1466 return dp;
714} 1467}
715 1468
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-23 12:25:40 -0400