X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Fpci%2Firq.c;h=da21b1d07c15529e954a21ab8b48a0c48bd0df6b;hb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;hp=f72313b10dc1da0a27ada59afb4560159f246773;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c index f72313b10..da21b1d07 100644 --- a/arch/i386/pci/irq.c +++ b/arch/i386/pci/irq.c @@ -12,20 +12,25 @@ #include #include #include +#include #include #include #include #include +#include #include "pci.h" #define PIRQ_SIGNATURE (('$' << 0) + ('P' << 8) + ('I' << 16) + ('R' << 24)) #define PIRQ_VERSION 0x0100 -int broken_hp_bios_irq9; +static int broken_hp_bios_irq9; +static int acer_tm360_irqrouting; static struct irq_routing_table *pirq_table; +static int pirq_enable_irq(struct pci_dev *dev); + /* * Never use: 0, 1, 2 (timer, keyboard, and cascade) * Avoid using: 13, 14 and 15 (FP error and IDE). @@ -125,8 +130,15 @@ void eisa_set_level_irq(unsigned int irq) { unsigned char mask = 1 << (irq & 7); unsigned int port = 0x4d0 + (irq >> 3); - unsigned char val = inb(port); + unsigned char val; + static u16 eisa_irq_mask; + + if (irq >= 16 || (1 << irq) & eisa_irq_mask) + return; + eisa_irq_mask |= (1 << irq); + printk("PCI: setting IRQ %u as level-triggered\n", irq); + val = inb(port); if (!(val & mask)) { DBG(" -> edge"); outb(val | mask, port); @@ -450,14 +462,16 @@ static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, #endif - static __init int intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) { + static struct pci_device_id pirq_440gx[] = { + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) }, + { }, + }; + /* 440GX has a proprietary PIRQ router -- don't use it */ - if ( pci_find_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82443GX_0, NULL) || - pci_find_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82443GX_2, NULL)) + if (pci_dev_present(pirq_440gx)) return 0; switch(device) @@ -476,8 +490,14 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route case PCI_DEVICE_ID_INTEL_82801DB_0: case PCI_DEVICE_ID_INTEL_82801E_0: case PCI_DEVICE_ID_INTEL_82801EB_0: - case PCI_DEVICE_ID_INTEL_ESB_0: + case PCI_DEVICE_ID_INTEL_ESB_1: case PCI_DEVICE_ID_INTEL_ICH6_0: + case PCI_DEVICE_ID_INTEL_ICH6_1: + case PCI_DEVICE_ID_INTEL_ICH7_0: + case PCI_DEVICE_ID_INTEL_ICH7_1: + case PCI_DEVICE_ID_INTEL_ICH7_30: + case PCI_DEVICE_ID_INTEL_ICH7_31: + case PCI_DEVICE_ID_INTEL_ESB2_0: r->name = "PIIX/ICH"; r->get = pirq_piix_get; r->set = pirq_piix_set; @@ -540,8 +560,6 @@ static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router, r->name = "SIS"; r->get = pirq_sis_get; r->set = pirq_sis_set; - DBG("PCI: Detecting SiS router at %02x:%02x\n", - rt->rtr_bus, rt->rtr_devfn); return 1; } @@ -722,7 +740,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign) if (!pirq_table) return 0; - DBG("IRQ for %s:%d", pci_name(dev), pin); + DBG("IRQ for %s[%c]", pci_name(dev), 'A' + pin); info = pirq_get_info(dev); if (!info) { DBG(" -> not found in routing table\n"); @@ -746,6 +764,14 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign) r->set(pirq_router_dev, dev, pirq, 11); } + /* same for Acer Travelmate 360, but with CB and irq 11 -> 10 */ + if (acer_tm360_irqrouting && dev->irq == 11 && dev->vendor == PCI_VENDOR_ID_O2) { + pirq = 0x68; + mask = 0x400; + dev->irq = r->get(pirq_router_dev, dev, pirq); + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); + } + /* * Find the best IRQ to assign: use the one * reported by the device if possible. @@ -795,7 +821,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign) printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq, pci_name(dev)); /* Update IRQ for all devices with the same pirq value */ - while ((dev2 = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) { + while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) { pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin); if (!pin) continue; @@ -808,7 +834,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign) if ( dev2->irq && dev2->irq != irq && \ (!(pci_probe & PCI_USE_PIRQ_MASK) || \ ((1 << dev2->irq) & mask)) ) { -#ifndef CONFIG_PCI_USE_VECTOR +#ifndef CONFIG_PCI_MSI printk(KERN_INFO "IRQ routing conflict for %s, have irq %d, want irq %d\n", pci_name(dev2), dev2->irq, irq); #endif @@ -829,7 +855,7 @@ static void __init pcibios_fixup_irqs(void) u8 pin; DBG("PCI: IRQ fixup\n"); - while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { + while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { /* * If the BIOS has set an out of range IRQ number, just ignore it. * Also keep track of which IRQ's are already in use. @@ -845,7 +871,7 @@ static void __init pcibios_fixup_irqs(void) } dev = NULL; - while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { + while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); #ifdef CONFIG_X86_IO_APIC /* @@ -871,16 +897,16 @@ static void __init pcibios_fixup_irqs(void) irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, PCI_SLOT(bridge->devfn), pin); if (irq >= 0) - printk(KERN_WARNING "PCI: using PPB(B%d,I%d,P%d) to get irq %d\n", - bridge->bus->number, PCI_SLOT(bridge->devfn), pin, irq); + printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n", + pci_name(bridge), 'A' + pin, irq); } if (irq >= 0) { if (use_pci_vector() && !platform_legacy_irq(irq)) irq = IO_APIC_VECTOR(irq); - printk(KERN_INFO "PCI->APIC IRQ transform: (B%d,I%d,P%d) -> %d\n", - dev->bus->number, PCI_SLOT(dev->devfn), pin, irq); + printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n", + pci_name(dev), 'A' + pin, irq); dev->irq = irq; } } @@ -894,13 +920,63 @@ static void __init pcibios_fixup_irqs(void) } } +/* + * Work around broken HP Pavilion Notebooks which assign USB to + * IRQ 9 even though it is actually wired to IRQ 11 + */ +static int __init fix_broken_hp_bios_irq9(struct dmi_system_id *d) +{ + if (!broken_hp_bios_irq9) { + broken_hp_bios_irq9 = 1; + printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident); + } + return 0; +} + +/* + * Work around broken Acer TravelMate 360 Notebooks which assign + * Cardbus to IRQ 11 even though it is actually wired to IRQ 10 + */ +static int __init fix_acer_tm360_irqrouting(struct dmi_system_id *d) +{ + if (!acer_tm360_irqrouting) { + acer_tm360_irqrouting = 1; + printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident); + } + return 0; +} + +static struct dmi_system_id __initdata pciirq_dmi_table[] = { + { + .callback = fix_broken_hp_bios_irq9, + .ident = "HP Pavilion N5400 Series Laptop", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_BIOS_VERSION, "GE.M1.03"), + DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook Model GE"), + DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"), + }, + }, + { + .callback = fix_acer_tm360_irqrouting, + .ident = "Acer TravelMate 36x Laptop", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), + }, + }, + { } +}; + static int __init pcibios_irq_init(void) { DBG("PCI: IRQ init\n"); - if (pcibios_enable_irq) + if (pcibios_enable_irq || raw_pci_ops == NULL) return 0; + dmi_check_system(pciirq_dmi_table); + pirq_table = pirq_find_routing_table(); #ifdef CONFIG_PCI_BIOS @@ -930,78 +1006,83 @@ static int __init pcibios_irq_init(void) subsys_initcall(pcibios_irq_init); -void pcibios_penalize_isa_irq(int irq) +static void pirq_penalize_isa_irq(int irq) { /* * If any ISAPnP device reports an IRQ in its list of possible * IRQ's, we try to avoid assigning it to PCI devices. */ - pirq_penalty[irq] += 100; + if (irq < 16) + pirq_penalty[irq] += 100; } -int pirq_enable_irq(struct pci_dev *dev) +void pcibios_penalize_isa_irq(int irq) +{ +#ifdef CONFIG_ACPI_PCI + if (!acpi_noirq) + acpi_penalize_isa_irq(irq); + else +#endif + pirq_penalize_isa_irq(irq); +} + +static int pirq_enable_irq(struct pci_dev *dev) { u8 pin; - extern int interrupt_line_quirk; struct pci_dev *temp_dev; pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) { - char *msg; - msg = ""; + char *msg = ""; + + pin--; /* interrupt pins are numbered starting from 1 */ + if (io_apic_assign_pci_irqs) { int irq; - if (pin) { - pin--; /* interrupt pins are numbered starting from 1 */ - irq = IO_APIC_get_PCI_irq_vector(dev->bus->number, PCI_SLOT(dev->devfn), pin); - /* - * Busses behind bridges are typically not listed in the MP-table. - * In this case we have to look up the IRQ based on the parent bus, - * parent slot, and pin number. The SMP code detects such bridged - * busses itself so we should get into this branch reliably. - */ - temp_dev = dev; - while (irq < 0 && dev->bus->parent) { /* go back to the bridge */ - struct pci_dev * bridge = dev->bus->self; - - pin = (pin + PCI_SLOT(dev->devfn)) % 4; - irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, - PCI_SLOT(bridge->devfn), pin); - if (irq >= 0) - printk(KERN_WARNING "PCI: using PPB(B%d,I%d,P%d) to get irq %d\n", - bridge->bus->number, PCI_SLOT(bridge->devfn), pin, irq); - dev = bridge; - } - dev = temp_dev; - if (irq >= 0) { -#ifdef CONFIG_PCI_USE_VECTOR - if (!platform_legacy_irq(irq)) - irq = IO_APIC_VECTOR(irq); -#endif - printk(KERN_INFO "PCI->APIC IRQ transform: (B%d,I%d,P%d) -> %d\n", - dev->bus->number, PCI_SLOT(dev->devfn), pin, irq); - dev->irq = irq; - return 0; - } else - msg = " Probably buggy MP table."; + irq = IO_APIC_get_PCI_irq_vector(dev->bus->number, PCI_SLOT(dev->devfn), pin); + /* + * Busses behind bridges are typically not listed in the MP-table. + * In this case we have to look up the IRQ based on the parent bus, + * parent slot, and pin number. The SMP code detects such bridged + * busses itself so we should get into this branch reliably. + */ + temp_dev = dev; + while (irq < 0 && dev->bus->parent) { /* go back to the bridge */ + struct pci_dev * bridge = dev->bus->self; + + pin = (pin + PCI_SLOT(dev->devfn)) % 4; + irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, + PCI_SLOT(bridge->devfn), pin); + if (irq >= 0) + printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n", + pci_name(bridge), 'A' + pin, irq); + dev = bridge; } + dev = temp_dev; + if (irq >= 0) { +#ifdef CONFIG_PCI_MSI + if (!platform_legacy_irq(irq)) + irq = IO_APIC_VECTOR(irq); +#endif + printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n", + pci_name(dev), 'A' + pin, irq); + dev->irq = irq; + return 0; + } else + msg = " Probably buggy MP table."; } else if (pci_probe & PCI_BIOS_IRQ_SCAN) msg = ""; else msg = " Please try using pci=biosirq."; - + /* With IDE legacy devices the IRQ lookup failure is not a problem.. */ if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE && !(dev->class & 0x5)) return 0; - + printk(KERN_WARNING "PCI: No IRQ known for interrupt pin %c of device %s.%s\n", - 'A' + pin - 1, pci_name(dev), msg); + 'A' + pin, pci_name(dev), msg); } - /* VIA bridges use interrupt line for apic/pci steering across - the V-Link */ - else if (interrupt_line_quirk) - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); return 0; }