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Diffstat (limited to 'arch/x86/pci/irq.c')
-rw-r--r--arch/x86/pci/irq.c511
1 files changed, 294 insertions, 217 deletions
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index ca8df9c260bc..c422e10337be 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -11,8 +11,8 @@
11#include <linux/slab.h> 11#include <linux/slab.h>
12#include <linux/interrupt.h> 12#include <linux/interrupt.h>
13#include <linux/dmi.h> 13#include <linux/dmi.h>
14#include <asm/io.h> 14#include <linux/io.h>
15#include <asm/smp.h> 15#include <linux/smp.h>
16#include <asm/io_apic.h> 16#include <asm/io_apic.h>
17#include <linux/irq.h> 17#include <linux/irq.h>
18#include <linux/acpi.h> 18#include <linux/acpi.h>
@@ -45,7 +45,8 @@ struct irq_router {
45 char *name; 45 char *name;
46 u16 vendor, device; 46 u16 vendor, device;
47 int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq); 47 int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq);
48 int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq, int new); 48 int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq,
49 int new);
49}; 50};
50 51
51struct irq_router_handler { 52struct irq_router_handler {
@@ -61,7 +62,7 @@ void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
61 * and perform checksum verification. 62 * and perform checksum verification.
62 */ 63 */
63 64
64static inline struct irq_routing_table * pirq_check_routing_table(u8 *addr) 65static inline struct irq_routing_table *pirq_check_routing_table(u8 *addr)
65{ 66{
66 struct irq_routing_table *rt; 67 struct irq_routing_table *rt;
67 int i; 68 int i;
@@ -74,10 +75,11 @@ static inline struct irq_routing_table * pirq_check_routing_table(u8 *addr)
74 rt->size < sizeof(struct irq_routing_table)) 75 rt->size < sizeof(struct irq_routing_table))
75 return NULL; 76 return NULL;
76 sum = 0; 77 sum = 0;
77 for (i=0; i < rt->size; i++) 78 for (i = 0; i < rt->size; i++)
78 sum += addr[i]; 79 sum += addr[i];
79 if (!sum) { 80 if (!sum) {
80 DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n", rt); 81 DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n",
82 rt);
81 return rt; 83 return rt;
82 } 84 }
83 return NULL; 85 return NULL;
@@ -100,7 +102,8 @@ static struct irq_routing_table * __init pirq_find_routing_table(void)
100 return rt; 102 return rt;
101 printk(KERN_WARNING "PCI: PIRQ table NOT found at pirqaddr\n"); 103 printk(KERN_WARNING "PCI: PIRQ table NOT found at pirqaddr\n");
102 } 104 }
103 for(addr = (u8 *) __va(0xf0000); addr < (u8 *) __va(0x100000); addr += 16) { 105 for (addr = (u8 *) __va(0xf0000); addr < (u8 *) __va(0x100000);
106 addr += 16) {
104 rt = pirq_check_routing_table(addr); 107 rt = pirq_check_routing_table(addr);
105 if (rt) 108 if (rt)
106 return rt; 109 return rt;
@@ -122,20 +125,23 @@ static void __init pirq_peer_trick(void)
122 struct irq_info *e; 125 struct irq_info *e;
123 126
124 memset(busmap, 0, sizeof(busmap)); 127 memset(busmap, 0, sizeof(busmap));
125 for(i=0; i < (rt->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); i++) { 128 for (i = 0; i < (rt->size - sizeof(struct irq_routing_table)) /
129 sizeof(struct irq_info); i++) {
126 e = &rt->slots[i]; 130 e = &rt->slots[i];
127#ifdef DEBUG 131#ifdef DEBUG
128 { 132 {
129 int j; 133 int j;
130 DBG(KERN_DEBUG "%02x:%02x slot=%02x", e->bus, e->devfn/8, e->slot); 134 DBG(KERN_DEBUG "%02x:%02x slot=%02x", e->bus,
131 for(j=0; j<4; j++) 135 e->devfn/8, e->slot);
132 DBG(" %d:%02x/%04x", j, e->irq[j].link, e->irq[j].bitmap); 136 for (j = 0; j < 4; j++)
137 DBG(" %d:%02x/%04x", j, e->irq[j].link,
138 e->irq[j].bitmap);
133 DBG("\n"); 139 DBG("\n");
134 } 140 }
135#endif 141#endif
136 busmap[e->bus] = 1; 142 busmap[e->bus] = 1;
137 } 143 }
138 for(i = 1; i < 256; i++) { 144 for (i = 1; i < 256; i++) {
139 int node; 145 int node;
140 if (!busmap[i] || pci_find_bus(0, i)) 146 if (!busmap[i] || pci_find_bus(0, i))
141 continue; 147 continue;
@@ -174,7 +180,8 @@ void eisa_set_level_irq(unsigned int irq)
174 * Common IRQ routing practice: nibbles in config space, 180 * Common IRQ routing practice: nibbles in config space,
175 * offset by some magic constant. 181 * offset by some magic constant.
176 */ 182 */
177static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr) 183static unsigned int
184read_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr)
178{ 185{
179 u8 x; 186 u8 x;
180 unsigned reg = offset + (nr >> 1); 187 unsigned reg = offset + (nr >> 1);
@@ -183,7 +190,8 @@ static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset,
183 return (nr & 1) ? (x >> 4) : (x & 0xf); 190 return (nr & 1) ? (x >> 4) : (x & 0xf);
184} 191}
185 192
186static void write_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr, unsigned int val) 193static void write_config_nybble(struct pci_dev *router, unsigned offset,
194 unsigned nr, unsigned int val)
187{ 195{
188 u8 x; 196 u8 x;
189 unsigned reg = offset + (nr >> 1); 197 unsigned reg = offset + (nr >> 1);
@@ -200,15 +208,18 @@ static void write_config_nybble(struct pci_dev *router, unsigned offset, unsigne
200 */ 208 */
201static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq) 209static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
202{ 210{
203 static const unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 }; 211 static const unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1,
212 11, 0, 12, 0, 14, 0, 15 };
204 213
205 WARN_ON_ONCE(pirq > 16); 214 WARN_ON_ONCE(pirq > 16);
206 return irqmap[read_config_nybble(router, 0x48, pirq-1)]; 215 return irqmap[read_config_nybble(router, 0x48, pirq-1)];
207} 216}
208 217
209static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 218static int
219pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
210{ 220{
211 static const unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 }; 221 static const unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1,
222 3, 9, 11, 0, 13, 15 };
212 unsigned int val = irqmap[irq]; 223 unsigned int val = irqmap[irq];
213 224
214 WARN_ON_ONCE(pirq > 16); 225 WARN_ON_ONCE(pirq > 16);
@@ -231,7 +242,8 @@ static int pirq_piix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
231 return (x < 16) ? x : 0; 242 return (x < 16) ? x : 0;
232} 243}
233 244
234static int pirq_piix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 245static int
246pirq_piix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
235{ 247{
236 pci_write_config_byte(router, pirq, irq); 248 pci_write_config_byte(router, pirq, irq);
237 return 1; 249 return 1;
@@ -247,7 +259,8 @@ static int pirq_via_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
247 return read_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq); 259 return read_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq);
248} 260}
249 261
250static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 262static int
263pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
251{ 264{
252 write_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq, irq); 265 write_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq, irq);
253 return 1; 266 return 1;
@@ -258,7 +271,8 @@ static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
258 * but without the ugly irq number munging. 271 * but without the ugly irq number munging.
259 * However, for 82C586, nibble map is different . 272 * However, for 82C586, nibble map is different .
260 */ 273 */
261static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq) 274static int
275pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
262{ 276{
263 static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 }; 277 static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
264 278
@@ -266,7 +280,8 @@ static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq
266 return read_config_nybble(router, 0x55, pirqmap[pirq-1]); 280 return read_config_nybble(router, 0x55, pirqmap[pirq-1]);
267} 281}
268 282
269static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 283static int
284pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
270{ 285{
271 static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 }; 286 static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
272 287
@@ -285,10 +300,11 @@ static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
285 static const unsigned char pirqmap[4] = { 1, 0, 2, 3 }; 300 static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
286 301
287 WARN_ON_ONCE(pirq > 4); 302 WARN_ON_ONCE(pirq > 4);
288 return read_config_nybble(router,0x43, pirqmap[pirq-1]); 303 return read_config_nybble(router, 0x43, pirqmap[pirq-1]);
289} 304}
290 305
291static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 306static int
307pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
292{ 308{
293 static const unsigned char pirqmap[4] = { 1, 0, 2, 3 }; 309 static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
294 310
@@ -306,7 +322,8 @@ static int pirq_opti_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
306 return read_config_nybble(router, 0xb8, pirq >> 4); 322 return read_config_nybble(router, 0xb8, pirq >> 4);
307} 323}
308 324
309static int pirq_opti_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 325static int
326pirq_opti_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
310{ 327{
311 write_config_nybble(router, 0xb8, pirq >> 4, irq); 328 write_config_nybble(router, 0xb8, pirq >> 4, irq);
312 return 1; 329 return 1;
@@ -314,7 +331,7 @@ static int pirq_opti_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
314 331
315/* 332/*
316 * Cyrix: nibble offset 0x5C 333 * Cyrix: nibble offset 0x5C
317 * 0x5C bits 7:4 is INTB bits 3:0 is INTA 334 * 0x5C bits 7:4 is INTB bits 3:0 is INTA
318 * 0x5D bits 7:4 is INTD bits 3:0 is INTC 335 * 0x5D bits 7:4 is INTD bits 3:0 is INTC
319 */ 336 */
320static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq) 337static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
@@ -322,7 +339,8 @@ static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
322 return read_config_nybble(router, 0x5C, (pirq-1)^1); 339 return read_config_nybble(router, 0x5C, (pirq-1)^1);
323} 340}
324 341
325static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 342static int
343pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
326{ 344{
327 write_config_nybble(router, 0x5C, (pirq-1)^1, irq); 345 write_config_nybble(router, 0x5C, (pirq-1)^1, irq);
328 return 1; 346 return 1;
@@ -350,7 +368,7 @@ static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
350 * Apparently there are systems implementing PCI routing table using 368 * Apparently there are systems implementing PCI routing table using
351 * link values 0x01-0x04 and others using 0x41-0x44 for PCI INTA..D. 369 * link values 0x01-0x04 and others using 0x41-0x44 for PCI INTA..D.
352 * We try our best to handle both link mappings. 370 * We try our best to handle both link mappings.
353 * 371 *
354 * Currently (2003-05-21) it appears most SiS chipsets follow the 372 * Currently (2003-05-21) it appears most SiS chipsets follow the
355 * definition of routing registers from the SiS-5595 southbridge. 373 * definition of routing registers from the SiS-5595 southbridge.
356 * According to the SiS 5595 datasheets the revision id's of the 374 * According to the SiS 5595 datasheets the revision id's of the
@@ -370,7 +388,7 @@ static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
370 * 388 *
371 * 0x62: USBIRQ: 389 * 0x62: USBIRQ:
372 * bit 6 OHCI function disabled (0), enabled (1) 390 * bit 6 OHCI function disabled (0), enabled (1)
373 * 391 *
374 * 0x6a: ACPI/SCI IRQ: bits 4-6 reserved 392 * 0x6a: ACPI/SCI IRQ: bits 4-6 reserved
375 * 393 *
376 * 0x7e: Data Acq. Module IRQ - bits 4-6 reserved 394 * 0x7e: Data Acq. Module IRQ - bits 4-6 reserved
@@ -405,7 +423,8 @@ static int pirq_sis_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
405 return (x & PIRQ_SIS_IRQ_DISABLE) ? 0 : (x & PIRQ_SIS_IRQ_MASK); 423 return (x & PIRQ_SIS_IRQ_DISABLE) ? 0 : (x & PIRQ_SIS_IRQ_MASK);
406} 424}
407 425
408static int pirq_sis_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 426static int
427pirq_sis_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
409{ 428{
410 u8 x; 429 u8 x;
411 int reg; 430 int reg;
@@ -439,7 +458,8 @@ static int pirq_vlsi_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
439 return read_config_nybble(router, 0x74, pirq-1); 458 return read_config_nybble(router, 0x74, pirq-1);
440} 459}
441 460
442static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 461static int
462pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
443{ 463{
444 WARN_ON_ONCE(pirq >= 9); 464 WARN_ON_ONCE(pirq >= 9);
445 if (pirq > 8) { 465 if (pirq > 8) {
@@ -461,13 +481,15 @@ static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
461 * 0x00 for ACPI (SCI), 0x01 for USB, 0x02 for IDE0, 0x04 for IDE1, 481 * 0x00 for ACPI (SCI), 0x01 for USB, 0x02 for IDE0, 0x04 for IDE1,
462 * and 0x03 for SMBus. 482 * and 0x03 for SMBus.
463 */ 483 */
464static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int pirq) 484static int
485pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
465{ 486{
466 outb(pirq, 0xc00); 487 outb(pirq, 0xc00);
467 return inb(0xc01) & 0xf; 488 return inb(0xc01) & 0xf;
468} 489}
469 490
470static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 491static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev,
492 int pirq, int irq)
471{ 493{
472 outb(pirq, 0xc00); 494 outb(pirq, 0xc00);
473 outb(irq, 0xc01); 495 outb(irq, 0xc01);
@@ -482,27 +504,27 @@ static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev, int
482 * offset 0x56 0-3 PIRQA 4-7 PIRQB 504 * offset 0x56 0-3 PIRQA 4-7 PIRQB
483 * offset 0x57 0-3 PIRQC 4-7 PIRQD 505 * offset 0x57 0-3 PIRQC 4-7 PIRQD
484 */ 506 */
485static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq) 507static int
508pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
486{ 509{
487 u8 irq; 510 u8 irq;
488 irq = 0; 511 irq = 0;
489 if (pirq <= 4) 512 if (pirq <= 4)
490 {
491 irq = read_config_nybble(router, 0x56, pirq - 1); 513 irq = read_config_nybble(router, 0x56, pirq - 1);
492 } 514 printk(KERN_INFO
493 printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d get irq : %2d\n", 515 "AMD756: dev %04x:%04x, router pirq : %d get irq : %2d\n",
494 dev->vendor, dev->device, pirq, irq); 516 dev->vendor, dev->device, pirq, irq);
495 return irq; 517 return irq;
496} 518}
497 519
498static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 520static int
521pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
499{ 522{
500 printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d SET irq : %2d\n", 523 printk(KERN_INFO
524 "AMD756: dev %04x:%04x, router pirq : %d SET irq : %2d\n",
501 dev->vendor, dev->device, pirq, irq); 525 dev->vendor, dev->device, pirq, irq);
502 if (pirq <= 4) 526 if (pirq <= 4)
503 {
504 write_config_nybble(router, 0x56, pirq - 1, irq); 527 write_config_nybble(router, 0x56, pirq - 1, irq);
505 }
506 return 1; 528 return 1;
507} 529}
508 530
@@ -528,7 +550,8 @@ static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
528 550
529#ifdef CONFIG_PCI_BIOS 551#ifdef CONFIG_PCI_BIOS
530 552
531static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 553static int
554pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
532{ 555{
533 struct pci_dev *bridge; 556 struct pci_dev *bridge;
534 int pin = pci_get_interrupt_pin(dev, &bridge); 557 int pin = pci_get_interrupt_pin(dev, &bridge);
@@ -537,11 +560,14 @@ static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
537 560
538#endif 561#endif
539 562
540static __init int intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 563static __init int
564intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
541{ 565{
542 static struct pci_device_id __initdata pirq_440gx[] = { 566 static struct pci_device_id __initdata pirq_440gx[] = {
543 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) }, 567 { PCI_DEVICE(PCI_VENDOR_ID_INTEL,
544 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) }, 568 PCI_DEVICE_ID_INTEL_82443GX_0) },
569 { PCI_DEVICE(PCI_VENDOR_ID_INTEL,
570 PCI_DEVICE_ID_INTEL_82443GX_2) },
545 { }, 571 { },
546 }; 572 };
547 573
@@ -549,50 +575,49 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
549 if (pci_dev_present(pirq_440gx)) 575 if (pci_dev_present(pirq_440gx))
550 return 0; 576 return 0;
551 577
552 switch(device) 578 switch (device) {
553 { 579 case PCI_DEVICE_ID_INTEL_82371FB_0:
554 case PCI_DEVICE_ID_INTEL_82371FB_0: 580 case PCI_DEVICE_ID_INTEL_82371SB_0:
555 case PCI_DEVICE_ID_INTEL_82371SB_0: 581 case PCI_DEVICE_ID_INTEL_82371AB_0:
556 case PCI_DEVICE_ID_INTEL_82371AB_0: 582 case PCI_DEVICE_ID_INTEL_82371MX:
557 case PCI_DEVICE_ID_INTEL_82371MX: 583 case PCI_DEVICE_ID_INTEL_82443MX_0:
558 case PCI_DEVICE_ID_INTEL_82443MX_0: 584 case PCI_DEVICE_ID_INTEL_82801AA_0:
559 case PCI_DEVICE_ID_INTEL_82801AA_0: 585 case PCI_DEVICE_ID_INTEL_82801AB_0:
560 case PCI_DEVICE_ID_INTEL_82801AB_0: 586 case PCI_DEVICE_ID_INTEL_82801BA_0:
561 case PCI_DEVICE_ID_INTEL_82801BA_0: 587 case PCI_DEVICE_ID_INTEL_82801BA_10:
562 case PCI_DEVICE_ID_INTEL_82801BA_10: 588 case PCI_DEVICE_ID_INTEL_82801CA_0:
563 case PCI_DEVICE_ID_INTEL_82801CA_0: 589 case PCI_DEVICE_ID_INTEL_82801CA_12:
564 case PCI_DEVICE_ID_INTEL_82801CA_12: 590 case PCI_DEVICE_ID_INTEL_82801DB_0:
565 case PCI_DEVICE_ID_INTEL_82801DB_0: 591 case PCI_DEVICE_ID_INTEL_82801E_0:
566 case PCI_DEVICE_ID_INTEL_82801E_0: 592 case PCI_DEVICE_ID_INTEL_82801EB_0:
567 case PCI_DEVICE_ID_INTEL_82801EB_0: 593 case PCI_DEVICE_ID_INTEL_ESB_1:
568 case PCI_DEVICE_ID_INTEL_ESB_1: 594 case PCI_DEVICE_ID_INTEL_ICH6_0:
569 case PCI_DEVICE_ID_INTEL_ICH6_0: 595 case PCI_DEVICE_ID_INTEL_ICH6_1:
570 case PCI_DEVICE_ID_INTEL_ICH6_1: 596 case PCI_DEVICE_ID_INTEL_ICH7_0:
571 case PCI_DEVICE_ID_INTEL_ICH7_0: 597 case PCI_DEVICE_ID_INTEL_ICH7_1:
572 case PCI_DEVICE_ID_INTEL_ICH7_1: 598 case PCI_DEVICE_ID_INTEL_ICH7_30:
573 case PCI_DEVICE_ID_INTEL_ICH7_30: 599 case PCI_DEVICE_ID_INTEL_ICH7_31:
574 case PCI_DEVICE_ID_INTEL_ICH7_31: 600 case PCI_DEVICE_ID_INTEL_ESB2_0:
575 case PCI_DEVICE_ID_INTEL_ESB2_0: 601 case PCI_DEVICE_ID_INTEL_ICH8_0:
576 case PCI_DEVICE_ID_INTEL_ICH8_0: 602 case PCI_DEVICE_ID_INTEL_ICH8_1:
577 case PCI_DEVICE_ID_INTEL_ICH8_1: 603 case PCI_DEVICE_ID_INTEL_ICH8_2:
578 case PCI_DEVICE_ID_INTEL_ICH8_2: 604 case PCI_DEVICE_ID_INTEL_ICH8_3:
579 case PCI_DEVICE_ID_INTEL_ICH8_3: 605 case PCI_DEVICE_ID_INTEL_ICH8_4:
580 case PCI_DEVICE_ID_INTEL_ICH8_4: 606 case PCI_DEVICE_ID_INTEL_ICH9_0:
581 case PCI_DEVICE_ID_INTEL_ICH9_0: 607 case PCI_DEVICE_ID_INTEL_ICH9_1:
582 case PCI_DEVICE_ID_INTEL_ICH9_1: 608 case PCI_DEVICE_ID_INTEL_ICH9_2:
583 case PCI_DEVICE_ID_INTEL_ICH9_2: 609 case PCI_DEVICE_ID_INTEL_ICH9_3:
584 case PCI_DEVICE_ID_INTEL_ICH9_3: 610 case PCI_DEVICE_ID_INTEL_ICH9_4:
585 case PCI_DEVICE_ID_INTEL_ICH9_4: 611 case PCI_DEVICE_ID_INTEL_ICH9_5:
586 case PCI_DEVICE_ID_INTEL_ICH9_5: 612 case PCI_DEVICE_ID_INTEL_TOLAPAI_0:
587 case PCI_DEVICE_ID_INTEL_TOLAPAI_0: 613 case PCI_DEVICE_ID_INTEL_ICH10_0:
588 case PCI_DEVICE_ID_INTEL_ICH10_0: 614 case PCI_DEVICE_ID_INTEL_ICH10_1:
589 case PCI_DEVICE_ID_INTEL_ICH10_1: 615 case PCI_DEVICE_ID_INTEL_ICH10_2:
590 case PCI_DEVICE_ID_INTEL_ICH10_2: 616 case PCI_DEVICE_ID_INTEL_ICH10_3:
591 case PCI_DEVICE_ID_INTEL_ICH10_3: 617 r->name = "PIIX/ICH";
592 r->name = "PIIX/ICH"; 618 r->get = pirq_piix_get;
593 r->get = pirq_piix_get; 619 r->set = pirq_piix_set;
594 r->set = pirq_piix_set; 620 return 1;
595 return 1;
596 } 621 }
597 return 0; 622 return 0;
598} 623}
@@ -606,7 +631,7 @@ static __init int via_router_probe(struct irq_router *r,
606 * workarounds for some buggy BIOSes 631 * workarounds for some buggy BIOSes
607 */ 632 */
608 if (device == PCI_DEVICE_ID_VIA_82C586_0) { 633 if (device == PCI_DEVICE_ID_VIA_82C586_0) {
609 switch(router->device) { 634 switch (router->device) {
610 case PCI_DEVICE_ID_VIA_82C686: 635 case PCI_DEVICE_ID_VIA_82C686:
611 /* 636 /*
612 * Asus k7m bios wrongly reports 82C686A 637 * Asus k7m bios wrongly reports 82C686A
@@ -631,7 +656,7 @@ static __init int via_router_probe(struct irq_router *r,
631 } 656 }
632 } 657 }
633 658
634 switch(device) { 659 switch (device) {
635 case PCI_DEVICE_ID_VIA_82C586_0: 660 case PCI_DEVICE_ID_VIA_82C586_0:
636 r->name = "VIA"; 661 r->name = "VIA";
637 r->get = pirq_via586_get; 662 r->get = pirq_via586_get;
@@ -652,88 +677,89 @@ static __init int via_router_probe(struct irq_router *r,
652 return 0; 677 return 0;
653} 678}
654 679
655static __init int vlsi_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 680static __init int
681vlsi_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
656{ 682{
657 switch(device) 683 switch (device) {
658 { 684 case PCI_DEVICE_ID_VLSI_82C534:
659 case PCI_DEVICE_ID_VLSI_82C534: 685 r->name = "VLSI 82C534";
660 r->name = "VLSI 82C534"; 686 r->get = pirq_vlsi_get;
661 r->get = pirq_vlsi_get; 687 r->set = pirq_vlsi_set;
662 r->set = pirq_vlsi_set; 688 return 1;
663 return 1;
664 } 689 }
665 return 0; 690 return 0;
666} 691}
667 692
668 693
669static __init int serverworks_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 694static __init int serverworks_router_probe(struct irq_router *r,
695 struct pci_dev *router, u16 device)
670{ 696{
671 switch(device) 697 switch (device) {
672 { 698 case PCI_DEVICE_ID_SERVERWORKS_OSB4:
673 case PCI_DEVICE_ID_SERVERWORKS_OSB4: 699 case PCI_DEVICE_ID_SERVERWORKS_CSB5:
674 case PCI_DEVICE_ID_SERVERWORKS_CSB5: 700 r->name = "ServerWorks";
675 r->name = "ServerWorks"; 701 r->get = pirq_serverworks_get;
676 r->get = pirq_serverworks_get; 702 r->set = pirq_serverworks_set;
677 r->set = pirq_serverworks_set; 703 return 1;
678 return 1;
679 } 704 }
680 return 0; 705 return 0;
681} 706}
682 707
683static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 708static __init int
709sis_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
684{ 710{
685 if (device != PCI_DEVICE_ID_SI_503) 711 if (device != PCI_DEVICE_ID_SI_503)
686 return 0; 712 return 0;
687 713
688 r->name = "SIS"; 714 r->name = "SIS";
689 r->get = pirq_sis_get; 715 r->get = pirq_sis_get;
690 r->set = pirq_sis_set; 716 r->set = pirq_sis_set;
691 return 1; 717 return 1;
692} 718}
693 719
694static __init int cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 720static __init int
721cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
695{ 722{
696 switch(device) 723 switch (device) {
697 { 724 case PCI_DEVICE_ID_CYRIX_5520:
698 case PCI_DEVICE_ID_CYRIX_5520: 725 r->name = "NatSemi";
699 r->name = "NatSemi"; 726 r->get = pirq_cyrix_get;
700 r->get = pirq_cyrix_get; 727 r->set = pirq_cyrix_set;
701 r->set = pirq_cyrix_set; 728 return 1;
702 return 1;
703 } 729 }
704 return 0; 730 return 0;
705} 731}
706 732
707static __init int opti_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 733static __init int
734opti_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
708{ 735{
709 switch(device) 736 switch (device) {
710 { 737 case PCI_DEVICE_ID_OPTI_82C700:
711 case PCI_DEVICE_ID_OPTI_82C700: 738 r->name = "OPTI";
712 r->name = "OPTI"; 739 r->get = pirq_opti_get;
713 r->get = pirq_opti_get; 740 r->set = pirq_opti_set;
714 r->set = pirq_opti_set; 741 return 1;
715 return 1;
716 } 742 }
717 return 0; 743 return 0;
718} 744}
719 745
720static __init int ite_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 746static __init int
747ite_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
721{ 748{
722 switch(device) 749 switch (device) {
723 { 750 case PCI_DEVICE_ID_ITE_IT8330G_0:
724 case PCI_DEVICE_ID_ITE_IT8330G_0: 751 r->name = "ITE";
725 r->name = "ITE"; 752 r->get = pirq_ite_get;
726 r->get = pirq_ite_get; 753 r->set = pirq_ite_set;
727 r->set = pirq_ite_set; 754 return 1;
728 return 1;
729 } 755 }
730 return 0; 756 return 0;
731} 757}
732 758
733static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 759static __init int
760ali_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
734{ 761{
735 switch(device) 762 switch (device) {
736 {
737 case PCI_DEVICE_ID_AL_M1533: 763 case PCI_DEVICE_ID_AL_M1533:
738 case PCI_DEVICE_ID_AL_M1563: 764 case PCI_DEVICE_ID_AL_M1563:
739 printk(KERN_DEBUG "PCI: Using ALI IRQ Router\n"); 765 printk(KERN_DEBUG "PCI: Using ALI IRQ Router\n");
@@ -745,28 +771,29 @@ static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router,
745 return 0; 771 return 0;
746} 772}
747 773
748static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 774static __init int
775amd_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
749{ 776{
750 switch(device) 777 switch (device) {
751 { 778 case PCI_DEVICE_ID_AMD_VIPER_740B:
752 case PCI_DEVICE_ID_AMD_VIPER_740B: 779 r->name = "AMD756";
753 r->name = "AMD756"; 780 break;
754 break; 781 case PCI_DEVICE_ID_AMD_VIPER_7413:
755 case PCI_DEVICE_ID_AMD_VIPER_7413: 782 r->name = "AMD766";
756 r->name = "AMD766"; 783 break;
757 break; 784 case PCI_DEVICE_ID_AMD_VIPER_7443:
758 case PCI_DEVICE_ID_AMD_VIPER_7443: 785 r->name = "AMD768";
759 r->name = "AMD768"; 786 break;
760 break; 787 default:
761 default: 788 return 0;
762 return 0;
763 } 789 }
764 r->get = pirq_amd756_get; 790 r->get = pirq_amd756_get;
765 r->set = pirq_amd756_set; 791 r->set = pirq_amd756_set;
766 return 1; 792 return 1;
767} 793}
768 794
769static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 795static __init int
796pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
770{ 797{
771 switch (device) { 798 switch (device) {
772 case PCI_DEVICE_ID_PICOPOWER_PT86C523: 799 case PCI_DEVICE_ID_PICOPOWER_PT86C523:
@@ -807,7 +834,7 @@ static struct pci_dev *pirq_router_dev;
807 * FIXME: should we have an option to say "generic for 834 * FIXME: should we have an option to say "generic for
808 * chipset" ? 835 * chipset" ?
809 */ 836 */
810 837
811static void __init pirq_find_router(struct irq_router *r) 838static void __init pirq_find_router(struct irq_router *r)
812{ 839{
813 struct irq_routing_table *rt = pirq_table; 840 struct irq_routing_table *rt = pirq_table;
@@ -826,7 +853,7 @@ static void __init pirq_find_router(struct irq_router *r)
826 r->name = "default"; 853 r->name = "default";
827 r->get = NULL; 854 r->get = NULL;
828 r->set = NULL; 855 r->set = NULL;
829 856
830 DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n", 857 DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n",
831 rt->rtr_vendor, rt->rtr_device); 858 rt->rtr_vendor, rt->rtr_device);
832 859
@@ -837,12 +864,14 @@ static void __init pirq_find_router(struct irq_router *r)
837 return; 864 return;
838 } 865 }
839 866
840 for( h = pirq_routers; h->vendor; h++) { 867 for (h = pirq_routers; h->vendor; h++) {
841 /* First look for a router match */ 868 /* First look for a router match */
842 if (rt->rtr_vendor == h->vendor && h->probe(r, pirq_router_dev, rt->rtr_device)) 869 if (rt->rtr_vendor == h->vendor &&
870 h->probe(r, pirq_router_dev, rt->rtr_device))
843 break; 871 break;
844 /* Fall back to a device match */ 872 /* Fall back to a device match */
845 if (pirq_router_dev->vendor == h->vendor && h->probe(r, pirq_router_dev, pirq_router_dev->device)) 873 if (pirq_router_dev->vendor == h->vendor &&
874 h->probe(r, pirq_router_dev, pirq_router_dev->device))
846 break; 875 break;
847 } 876 }
848 printk(KERN_INFO "PCI: Using IRQ router %s [%04x/%04x] at %s\n", 877 printk(KERN_INFO "PCI: Using IRQ router %s [%04x/%04x] at %s\n",
@@ -857,11 +886,13 @@ static void __init pirq_find_router(struct irq_router *r)
857static struct irq_info *pirq_get_info(struct pci_dev *dev) 886static struct irq_info *pirq_get_info(struct pci_dev *dev)
858{ 887{
859 struct irq_routing_table *rt = pirq_table; 888 struct irq_routing_table *rt = pirq_table;
860 int entries = (rt->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); 889 int entries = (rt->size - sizeof(struct irq_routing_table)) /
890 sizeof(struct irq_info);
861 struct irq_info *info; 891 struct irq_info *info;
862 892
863 for (info = rt->slots; entries--; info++) 893 for (info = rt->slots; entries--; info++)
864 if (info->bus == dev->bus->number && PCI_SLOT(info->devfn) == PCI_SLOT(dev->devfn)) 894 if (info->bus == dev->bus->number &&
895 PCI_SLOT(info->devfn) == PCI_SLOT(dev->devfn))
865 return info; 896 return info;
866 return NULL; 897 return NULL;
867} 898}
@@ -889,7 +920,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
889 920
890 if (!pirq_table) 921 if (!pirq_table)
891 return 0; 922 return 0;
892 923
893 DBG(KERN_DEBUG "IRQ for %s[%c]", pci_name(dev), 'A' + pin); 924 DBG(KERN_DEBUG "IRQ for %s[%c]", pci_name(dev), 'A' + pin);
894 info = pirq_get_info(dev); 925 info = pirq_get_info(dev);
895 if (!info) { 926 if (!info) {
@@ -902,7 +933,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
902 DBG(" -> not routed\n" KERN_DEBUG); 933 DBG(" -> not routed\n" KERN_DEBUG);
903 return 0; 934 return 0;
904 } 935 }
905 DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask, pirq_table->exclusive_irqs); 936 DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask,
937 pirq_table->exclusive_irqs);
906 mask &= pcibios_irq_mask; 938 mask &= pcibios_irq_mask;
907 939
908 /* Work around broken HP Pavilion Notebooks which assign USB to 940 /* Work around broken HP Pavilion Notebooks which assign USB to
@@ -915,7 +947,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
915 } 947 }
916 948
917 /* same for Acer Travelmate 360, but with CB and irq 11 -> 10 */ 949 /* same for Acer Travelmate 360, but with CB and irq 11 -> 10 */
918 if (acer_tm360_irqrouting && dev->irq == 11 && dev->vendor == PCI_VENDOR_ID_O2) { 950 if (acer_tm360_irqrouting && dev->irq == 11 &&
951 dev->vendor == PCI_VENDOR_ID_O2) {
919 pirq = 0x68; 952 pirq = 0x68;
920 mask = 0x400; 953 mask = 0x400;
921 dev->irq = r->get(pirq_router_dev, dev, pirq); 954 dev->irq = r->get(pirq_router_dev, dev, pirq);
@@ -928,17 +961,20 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
928 */ 961 */
929 newirq = dev->irq; 962 newirq = dev->irq;
930 if (newirq && !((1 << newirq) & mask)) { 963 if (newirq && !((1 << newirq) & mask)) {
931 if ( pci_probe & PCI_USE_PIRQ_MASK) newirq = 0; 964 if (pci_probe & PCI_USE_PIRQ_MASK)
932 else printk("\n" KERN_WARNING 965 newirq = 0;
933 "PCI: IRQ %i for device %s doesn't match PIRQ mask " 966 else
934 "- try pci=usepirqmask\n" KERN_DEBUG, newirq, 967 printk("\n" KERN_WARNING
935 pci_name(dev)); 968 "PCI: IRQ %i for device %s doesn't match PIRQ mask - try pci=usepirqmask\n"
969 KERN_DEBUG, newirq,
970 pci_name(dev));
936 } 971 }
937 if (!newirq && assign) { 972 if (!newirq && assign) {
938 for (i = 0; i < 16; i++) { 973 for (i = 0; i < 16; i++) {
939 if (!(mask & (1 << i))) 974 if (!(mask & (1 << i)))
940 continue; 975 continue;
941 if (pirq_penalty[i] < pirq_penalty[newirq] && can_request_irq(i, IRQF_SHARED)) 976 if (pirq_penalty[i] < pirq_penalty[newirq] &&
977 can_request_irq(i, IRQF_SHARED))
942 newirq = i; 978 newirq = i;
943 } 979 }
944 } 980 }
@@ -949,12 +985,13 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
949 irq = pirq & 0xf; 985 irq = pirq & 0xf;
950 DBG(" -> hardcoded IRQ %d\n", irq); 986 DBG(" -> hardcoded IRQ %d\n", irq);
951 msg = "Hardcoded"; 987 msg = "Hardcoded";
952 } else if ( r->get && (irq = r->get(pirq_router_dev, dev, pirq)) && \ 988 } else if (r->get && (irq = r->get(pirq_router_dev, dev, pirq)) && \
953 ((!(pci_probe & PCI_USE_PIRQ_MASK)) || ((1 << irq) & mask)) ) { 989 ((!(pci_probe & PCI_USE_PIRQ_MASK)) || ((1 << irq) & mask))) {
954 DBG(" -> got IRQ %d\n", irq); 990 DBG(" -> got IRQ %d\n", irq);
955 msg = "Found"; 991 msg = "Found";
956 eisa_set_level_irq(irq); 992 eisa_set_level_irq(irq);
957 } else if (newirq && r->set && (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) { 993 } else if (newirq && r->set &&
994 (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) {
958 DBG(" -> assigning IRQ %d", newirq); 995 DBG(" -> assigning IRQ %d", newirq);
959 if (r->set(pirq_router_dev, dev, pirq, newirq)) { 996 if (r->set(pirq_router_dev, dev, pirq, newirq)) {
960 eisa_set_level_irq(newirq); 997 eisa_set_level_irq(newirq);
@@ -972,7 +1009,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
972 } else 1009 } else
973 return 0; 1010 return 0;
974 } 1011 }
975 printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq, pci_name(dev)); 1012 printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq,
1013 pci_name(dev));
976 1014
977 /* Update IRQ for all devices with the same pirq value */ 1015 /* Update IRQ for all devices with the same pirq value */
978 while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) { 1016 while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) {
@@ -984,20 +1022,26 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
984 if (!info) 1022 if (!info)
985 continue; 1023 continue;
986 if (info->irq[pin].link == pirq) { 1024 if (info->irq[pin].link == pirq) {
987 /* We refuse to override the dev->irq information. Give a warning! */ 1025 /*
988 if ( dev2->irq && dev2->irq != irq && \ 1026 * We refuse to override the dev->irq
1027 * information. Give a warning!
1028 */
1029 if (dev2->irq && dev2->irq != irq && \
989 (!(pci_probe & PCI_USE_PIRQ_MASK) || \ 1030 (!(pci_probe & PCI_USE_PIRQ_MASK) || \
990 ((1 << dev2->irq) & mask)) ) { 1031 ((1 << dev2->irq) & mask))) {
991#ifndef CONFIG_PCI_MSI 1032#ifndef CONFIG_PCI_MSI
992 printk(KERN_INFO "IRQ routing conflict for %s, have irq %d, want irq %d\n", 1033 printk(KERN_INFO
993 pci_name(dev2), dev2->irq, irq); 1034 "IRQ routing conflict for %s, have irq %d, want irq %d\n",
1035 pci_name(dev2), dev2->irq, irq);
994#endif 1036#endif
995 continue; 1037 continue;
996 } 1038 }
997 dev2->irq = irq; 1039 dev2->irq = irq;
998 pirq_penalty[irq]++; 1040 pirq_penalty[irq]++;
999 if (dev != dev2) 1041 if (dev != dev2)
1000 printk(KERN_INFO "PCI: Sharing IRQ %d with %s\n", irq, pci_name(dev2)); 1042 printk(KERN_INFO
1043 "PCI: Sharing IRQ %d with %s\n",
1044 irq, pci_name(dev2));
1001 } 1045 }
1002 } 1046 }
1003 return 1; 1047 return 1;
@@ -1011,15 +1055,21 @@ static void __init pcibios_fixup_irqs(void)
1011 DBG(KERN_DEBUG "PCI: IRQ fixup\n"); 1055 DBG(KERN_DEBUG "PCI: IRQ fixup\n");
1012 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { 1056 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
1013 /* 1057 /*
1014 * If the BIOS has set an out of range IRQ number, just ignore it. 1058 * If the BIOS has set an out of range IRQ number, just
1015 * Also keep track of which IRQ's are already in use. 1059 * ignore it. Also keep track of which IRQ's are
1060 * already in use.
1016 */ 1061 */
1017 if (dev->irq >= 16) { 1062 if (dev->irq >= 16) {
1018 DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n", pci_name(dev), dev->irq); 1063 DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n",
1064 pci_name(dev), dev->irq);
1019 dev->irq = 0; 1065 dev->irq = 0;
1020 } 1066 }
1021 /* If the IRQ is already assigned to a PCI device, ignore its ISA use penalty */ 1067 /*
1022 if (pirq_penalty[dev->irq] >= 100 && pirq_penalty[dev->irq] < 100000) 1068 * If the IRQ is already assigned to a PCI device,
1069 * ignore its ISA use penalty
1070 */
1071 if (pirq_penalty[dev->irq] >= 100 &&
1072 pirq_penalty[dev->irq] < 100000)
1023 pirq_penalty[dev->irq] = 0; 1073 pirq_penalty[dev->irq] = 0;
1024 pirq_penalty[dev->irq]++; 1074 pirq_penalty[dev->irq]++;
1025 } 1075 }
@@ -1031,31 +1081,40 @@ static void __init pcibios_fixup_irqs(void)
1031 /* 1081 /*
1032 * Recalculate IRQ numbers if we use the I/O APIC. 1082 * Recalculate IRQ numbers if we use the I/O APIC.
1033 */ 1083 */
1034 if (io_apic_assign_pci_irqs) 1084 if (io_apic_assign_pci_irqs) {
1035 {
1036 int irq; 1085 int irq;
1037 1086
1038 if (pin) { 1087 if (pin) {
1039 pin--; /* interrupt pins are numbered starting from 1 */ 1088 /*
1040 irq = IO_APIC_get_PCI_irq_vector(dev->bus->number, PCI_SLOT(dev->devfn), pin); 1089 * interrupt pins are numbered starting
1090 * from 1
1091 */
1092 pin--;
1093 irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
1094 PCI_SLOT(dev->devfn), pin);
1041 /* 1095 /*
1042 * Busses behind bridges are typically not listed in the MP-table. 1096 * Busses behind bridges are typically not listed in the MP-table.
1043 * In this case we have to look up the IRQ based on the parent bus, 1097 * In this case we have to look up the IRQ based on the parent bus,
1044 * parent slot, and pin number. The SMP code detects such bridged 1098 * parent slot, and pin number. The SMP code detects such bridged
1045 * busses itself so we should get into this branch reliably. 1099 * busses itself so we should get into this branch reliably.
1046 */ 1100 */
1047 if (irq < 0 && dev->bus->parent) { /* go back to the bridge */ 1101 if (irq < 0 && dev->bus->parent) {
1048 struct pci_dev * bridge = dev->bus->self; 1102 /* go back to the bridge */
1103 struct pci_dev *bridge = dev->bus->self;
1049 1104
1050 pin = (pin + PCI_SLOT(dev->devfn)) % 4; 1105 pin = (pin + PCI_SLOT(dev->devfn)) % 4;
1051 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, 1106 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
1052 PCI_SLOT(bridge->devfn), pin); 1107 PCI_SLOT(bridge->devfn),
1108 pin);
1053 if (irq >= 0) 1109 if (irq >= 0)
1054 printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n", 1110 printk(KERN_WARNING
1055 pci_name(bridge), 'A' + pin, irq); 1111 "PCI: using PPB %s[%c] to get irq %d\n",
1112 pci_name(bridge),
1113 'A' + pin, irq);
1056 } 1114 }
1057 if (irq >= 0) { 1115 if (irq >= 0) {
1058 printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n", 1116 printk(KERN_INFO
1117 "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
1059 pci_name(dev), 'A' + pin, irq); 1118 pci_name(dev), 'A' + pin, irq);
1060 dev->irq = irq; 1119 dev->irq = irq;
1061 } 1120 }
@@ -1078,7 +1137,8 @@ static int __init fix_broken_hp_bios_irq9(const struct dmi_system_id *d)
1078{ 1137{
1079 if (!broken_hp_bios_irq9) { 1138 if (!broken_hp_bios_irq9) {
1080 broken_hp_bios_irq9 = 1; 1139 broken_hp_bios_irq9 = 1;
1081 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident); 1140 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n",
1141 d->ident);
1082 } 1142 }
1083 return 0; 1143 return 0;
1084} 1144}
@@ -1091,7 +1151,8 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
1091{ 1151{
1092 if (!acer_tm360_irqrouting) { 1152 if (!acer_tm360_irqrouting) {
1093 acer_tm360_irqrouting = 1; 1153 acer_tm360_irqrouting = 1;
1094 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident); 1154 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n",
1155 d->ident);
1095 } 1156 }
1096 return 0; 1157 return 0;
1097} 1158}
@@ -1103,7 +1164,8 @@ static struct dmi_system_id __initdata pciirq_dmi_table[] = {
1103 .matches = { 1164 .matches = {
1104 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1165 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1105 DMI_MATCH(DMI_BIOS_VERSION, "GE.M1.03"), 1166 DMI_MATCH(DMI_BIOS_VERSION, "GE.M1.03"),
1106 DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook Model GE"), 1167 DMI_MATCH(DMI_PRODUCT_VERSION,
1168 "HP Pavilion Notebook Model GE"),
1107 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"), 1169 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
1108 }, 1170 },
1109 }, 1171 },
@@ -1138,11 +1200,14 @@ static int __init pcibios_irq_init(void)
1138 pirq_find_router(&pirq_router); 1200 pirq_find_router(&pirq_router);
1139 if (pirq_table->exclusive_irqs) { 1201 if (pirq_table->exclusive_irqs) {
1140 int i; 1202 int i;
1141 for (i=0; i<16; i++) 1203 for (i = 0; i < 16; i++)
1142 if (!(pirq_table->exclusive_irqs & (1 << i))) 1204 if (!(pirq_table->exclusive_irqs & (1 << i)))
1143 pirq_penalty[i] += 100; 1205 pirq_penalty[i] += 100;
1144 } 1206 }
1145 /* If we're using the I/O APIC, avoid using the PCI IRQ routing table */ 1207 /*
1208 * If we're using the I/O APIC, avoid using the PCI IRQ
1209 * routing table
1210 */
1146 if (io_apic_assign_pci_irqs) 1211 if (io_apic_assign_pci_irqs)
1147 pirq_table = NULL; 1212 pirq_table = NULL;
1148 } 1213 }
@@ -1189,33 +1254,40 @@ static int pirq_enable_irq(struct pci_dev *dev)
1189 if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) { 1254 if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) {
1190 char *msg = ""; 1255 char *msg = "";
1191 1256
1192 pin--; /* interrupt pins are numbered starting from 1 */ 1257 pin--; /* interrupt pins are numbered starting from 1 */
1193 1258
1194 if (io_apic_assign_pci_irqs) { 1259 if (io_apic_assign_pci_irqs) {
1195 int irq; 1260 int irq;
1196 1261
1197 irq = IO_APIC_get_PCI_irq_vector(dev->bus->number, PCI_SLOT(dev->devfn), pin); 1262 irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
1263 PCI_SLOT(dev->devfn), pin);
1198 /* 1264 /*
1199 * Busses behind bridges are typically not listed in the MP-table. 1265 * Busses behind bridges are typically not
1200 * In this case we have to look up the IRQ based on the parent bus, 1266 * listed in the MP-table. In this case we have
1201 * parent slot, and pin number. The SMP code detects such bridged 1267 * to look up the IRQ based on the parent bus,
1202 * busses itself so we should get into this branch reliably. 1268 * parent slot, and pin number. The SMP code
1269 * detects such bridged busses itself so we
1270 * should get into this branch reliably.
1203 */ 1271 */
1204 temp_dev = dev; 1272 temp_dev = dev;
1205 while (irq < 0 && dev->bus->parent) { /* go back to the bridge */ 1273 while (irq < 0 && dev->bus->parent) {
1206 struct pci_dev * bridge = dev->bus->self; 1274 /* go back to the bridge */
1275 struct pci_dev *bridge = dev->bus->self;
1207 1276
1208 pin = (pin + PCI_SLOT(dev->devfn)) % 4; 1277 pin = (pin + PCI_SLOT(dev->devfn)) % 4;
1209 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, 1278 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
1210 PCI_SLOT(bridge->devfn), pin); 1279 PCI_SLOT(bridge->devfn), pin);
1211 if (irq >= 0) 1280 if (irq >= 0)
1212 printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n", 1281 printk(KERN_WARNING
1213 pci_name(bridge), 'A' + pin, irq); 1282 "PCI: using PPB %s[%c] to get irq %d\n",
1283 pci_name(bridge),
1284 'A' + pin, irq);
1214 dev = bridge; 1285 dev = bridge;
1215 } 1286 }
1216 dev = temp_dev; 1287 dev = temp_dev;
1217 if (irq >= 0) { 1288 if (irq >= 0) {
1218 printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n", 1289 printk(KERN_INFO
1290 "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
1219 pci_name(dev), 'A' + pin, irq); 1291 pci_name(dev), 'A' + pin, irq);
1220 dev->irq = irq; 1292 dev->irq = irq;
1221 return 0; 1293 return 0;
@@ -1226,12 +1298,17 @@ static int pirq_enable_irq(struct pci_dev *dev)
1226 else 1298 else
1227 msg = " Please try using pci=biosirq."; 1299 msg = " Please try using pci=biosirq.";
1228 1300
1229 /* With IDE legacy devices the IRQ lookup failure is not a problem.. */ 1301 /*
1230 if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE && !(dev->class & 0x5)) 1302 * With IDE legacy devices the IRQ lookup failure is not
1303 * a problem..
1304 */
1305 if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE &&
1306 !(dev->class & 0x5))
1231 return 0; 1307 return 0;
1232 1308
1233 printk(KERN_WARNING "PCI: No IRQ known for interrupt pin %c of device %s.%s\n", 1309 printk(KERN_WARNING
1234 'A' + pin, pci_name(dev), msg); 1310 "PCI: No IRQ known for interrupt pin %c of device %s.%s\n",
1311 'A' + pin, pci_name(dev), msg);
1235 } 1312 }
1236 return 0; 1313 return 0;
1237} 1314}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 12:58:40 -0500