diff options
Diffstat (limited to 'arch/i386/kernel')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 14 | ||||
| -rw-r--r-- | arch/i386/kernel/io_apic.c | 5 | ||||
| -rw-r--r-- | arch/i386/kernel/mpparse.c | 12 | ||||
| -rw-r--r-- | arch/i386/kernel/setup.c | 2 |
4 files changed, 26 insertions, 7 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 4c785a67d58..daee69579b1 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -1066,6 +1066,14 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), }, }, + { + .callback = disable_acpi_pci, + .ident = "HP xw9300", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"), + }, + }, {} }; @@ -1102,9 +1110,6 @@ int __init acpi_boot_table_init(void) dmi_check_system(acpi_dmi_table); #endif - if (!cpu_has_apic) - return -ENODEV; - /* * If acpi_disabled, bail out * One exception: acpi=ht continues far enough to enumerate LAPICs @@ -1151,9 +1156,6 @@ int __init acpi_boot_init(void) acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); - if (!cpu_has_apic) - return -ENODEV; - /* * set sci_int and PM timer address */ diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index f8f132aa547..d70f2ade5cd 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -2238,6 +2238,8 @@ static inline void unlock_ExtINT_logic(void) spin_unlock_irqrestore(&ioapic_lock, flags); } +int timer_uses_ioapic_pin_0; + /* * This code may look a bit paranoid, but it's supposed to cooperate with * a wide range of boards and BIOS bugs. Fortunately only the timer IRQ @@ -2274,6 +2276,9 @@ static inline void check_timer(void) pin2 = ioapic_i8259.pin; apic2 = ioapic_i8259.apic; + if (pin1 == 0) + timer_uses_ioapic_pin_0 = 1; + printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n", vector, apic1, pin1, apic2, pin2); diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index 34d21e21e01..6b1392d33ed 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c @@ -1130,7 +1130,17 @@ int mp_register_gsi (u32 gsi, int triggering, int polarity) */ int irq = gsi; if (gsi < MAX_GSI_NUM) { - if (gsi > 15) + /* + * Retain the VIA chipset work-around (gsi > 15), but + * avoid a problem where the 8254 timer (IRQ0) is setup + * via an override (so it's not on pin 0 of the ioapic), + * and at the same time, the pin 0 interrupt is a PCI + * type. The gsi > 15 test could cause these two pins + * to be shared as IRQ0, and they are not shareable. + * So test for this condition, and if necessary, avoid + * the pin collision. + */ + if (gsi > 15 || (gsi == 0 && !timer_uses_ioapic_pin_0)) gsi = pci_irq++; /* * Don't assign IRQ used by ACPI SCI diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index d77e89ac0d5..846e1639ef7 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1320,6 +1320,8 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat probe_roms(); for (i = 0; i < e820.nr_map; i++) { struct resource *res; + if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL) + continue; res = kzalloc(sizeof(struct resource), GFP_ATOMIC); switch (e820.map[i].type) { case E820_RAM: res->name = "System RAM"; break; |