X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Fpci%2Firq.c;h=99c02d9af6f4ee6a2f72d9e0ed5840cf5c21946b;hb=refs%2Fheads%2Fvserver;hp=842c581d5e1fcc07ce2bb09cbec920bf8c4046aa;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c index 842c581d5..99c02d9af 100644 --- a/arch/i386/pci/irq.c +++ b/arch/i386/pci/irq.c @@ -4,7 +4,6 @@ * (c) 1999--2000 Martin Mares */ -#include #include #include #include @@ -95,13 +94,25 @@ static struct irq_routing_table * __init pirq_find_routing_table(void) u8 *addr; struct irq_routing_table *rt; +#ifdef CONFIG_XEN + if (!is_initial_xendomain()) + return NULL; +#endif if (pirq_table_addr) { +#ifdef CONFIG_XEN + rt = pirq_check_routing_table((u8 *) isa_bus_to_virt(pirq_table_addr)); +#else rt = pirq_check_routing_table((u8 *) __va(pirq_table_addr)); +#endif if (rt) return rt; printk(KERN_WARNING "PCI: PIRQ table NOT found at pirqaddr\n"); } +#ifdef CONFIG_XEN + for(addr = (u8 *) isa_bus_to_virt(0xf0000); addr < (u8 *) isa_bus_to_virt(0x100000); addr += 16) { +#else for(addr = (u8 *) __va(0xf0000); addr < (u8 *) __va(0x100000); addr += 16) { +#endif rt = pirq_check_routing_table(addr); if (rt) return rt; @@ -198,14 +209,14 @@ static void write_config_nybble(struct pci_dev *router, unsigned offset, unsigne */ static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq) { - static unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 }; + static const unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 }; return irqmap[read_config_nybble(router, 0x48, pirq-1)]; } static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) { - static unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 }; + static const unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 }; unsigned int val = irqmap[irq]; if (val) { @@ -256,13 +267,13 @@ static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i */ static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq) { - static unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 }; + static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 }; return read_config_nybble(router, 0x55, pirqmap[pirq-1]); } static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) { - static unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 }; + static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 }; write_config_nybble(router, 0x55, pirqmap[pirq-1], irq); return 1; } @@ -274,13 +285,13 @@ static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq */ static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq) { - static unsigned char pirqmap[4] = { 1, 0, 2, 3 }; + static const unsigned char pirqmap[4] = { 1, 0, 2, 3 }; return read_config_nybble(router,0x43, pirqmap[pirq-1]); } static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) { - static unsigned char pirqmap[4] = { 1, 0, 2, 3 }; + static const unsigned char pirqmap[4] = { 1, 0, 2, 3 }; write_config_nybble(router, 0x43, pirqmap[pirq-1], irq); return 1; } @@ -505,7 +516,7 @@ static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, static __init int intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) { - static struct pci_device_id pirq_440gx[] = { + static struct pci_device_id __initdata 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) }, { }, @@ -594,7 +605,9 @@ static __init int via_router_probe(struct irq_router *r, case PCI_DEVICE_ID_VIA_82C596: case PCI_DEVICE_ID_VIA_82C686: case PCI_DEVICE_ID_VIA_8231: + case PCI_DEVICE_ID_VIA_8233A: case PCI_DEVICE_ID_VIA_8235: + case PCI_DEVICE_ID_VIA_8237: /* FIXME: add new ones for 8233/5 */ r->name = "VIA"; r->get = pirq_via_get; @@ -763,7 +776,7 @@ static void __init pirq_find_router(struct irq_router *r) DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n", rt->rtr_vendor, rt->rtr_device); - pirq_router_dev = pci_find_slot(rt->rtr_bus, rt->rtr_devfn); + pirq_router_dev = pci_get_bus_and_slot(rt->rtr_bus, rt->rtr_devfn); if (!pirq_router_dev) { DBG(KERN_DEBUG "PCI: Interrupt router not found at " "%02x:%02x\n", rt->rtr_bus, rt->rtr_devfn); @@ -783,6 +796,8 @@ static void __init pirq_find_router(struct irq_router *r) pirq_router_dev->vendor, pirq_router_dev->device, pci_name(pirq_router_dev)); + + /* The device remains referenced for the kernel lifetime */ } static struct irq_info *pirq_get_info(struct pci_dev *dev) @@ -869,7 +884,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign) for (i = 0; i < 16; i++) { if (!(mask & (1 << i))) continue; - if (pirq_penalty[i] < pirq_penalty[newirq] && can_request_irq(i, SA_SHIRQ)) + if (pirq_penalty[i] < pirq_penalty[newirq] && can_request_irq(i, IRQF_SHARED)) newirq = i; } } @@ -884,6 +899,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign) ((!(pci_probe & PCI_USE_PIRQ_MASK)) || ((1 << irq) & mask)) ) { DBG(" -> got IRQ %d\n", irq); msg = "Found"; + eisa_set_level_irq(irq); } else if (newirq && r->set && (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) { DBG(" -> assigning IRQ %d", newirq); if (r->set(pirq_router_dev, dev, pirq, newirq)) { @@ -985,10 +1001,6 @@ static void __init pcibios_fixup_irqs(void) 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: %s[%c] -> IRQ %d\n", pci_name(dev), 'A' + pin, irq); dev->irq = irq; @@ -1149,10 +1161,6 @@ static int pirq_enable_irq(struct pci_dev *dev) } 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; @@ -1173,33 +1181,3 @@ static int pirq_enable_irq(struct pci_dev *dev) } return 0; } - -int pci_vector_resources(int last, int nr_released) -{ - int count = nr_released; - - int next = last; - int offset = (last % 8); - - while (next < FIRST_SYSTEM_VECTOR) { - next += 8; -#ifdef CONFIG_X86_64 - if (next == IA32_SYSCALL_VECTOR) - continue; -#else - if (next == SYSCALL_VECTOR) - continue; -#endif - count++; - if (next >= FIRST_SYSTEM_VECTOR) { - if (offset%8) { - next = FIRST_DEVICE_VECTOR + offset; - offset++; - continue; - } - count--; - } - } - - return count; -}