int acpi_ioapic;
int acpi_strict;
-static int disable_irq0_through_ioapic __initdata;
-
u8 acpi_sci_flags __initdata;
int acpi_sci_override_gsi __initdata;
int acpi_skip_timer_override __initdata;
*/
enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC;
-#ifdef CONFIG_X86_64
-
-/* rely on all ACPI tables being in the direct mapping */
-char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
-{
- if (!phys_addr || !size)
- return NULL;
-
- if (phys_addr+size <= (max_pfn_mapped << PAGE_SHIFT) + PAGE_SIZE)
- return __va(phys_addr);
-
- return NULL;
-}
-
-#else
/*
* Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END,
unsigned long base, offset, mapped_size;
int idx;
- if (phys + size < 8 * 1024 * 1024)
+ if (!phys || !size)
+ return NULL;
+
+ if (phys+size <= (max_low_pfn_mapped << PAGE_SHIFT))
return __va(phys);
offset = phys & (PAGE_SIZE - 1);
mapped_size = PAGE_SIZE - offset;
+ clear_fixmap(FIX_ACPI_END);
set_fixmap(FIX_ACPI_END, phys);
base = fix_to_virt(FIX_ACPI_END);
if (--idx < FIX_ACPI_BEGIN)
return NULL; /* cannot handle this */
phys += PAGE_SIZE;
+ clear_fixmap(idx);
set_fixmap(idx, phys);
mapped_size += PAGE_SIZE;
}
return ((unsigned char *)base + offset);
}
-#endif
#ifdef CONFIG_PCI_MMCONFIG
/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
int pin;
struct mp_config_intsrc mp_irq;
- /* Skip the 8254 timer interrupt (IRQ 0) if requested. */
- if (bus_irq == 0 && disable_irq0_through_ioapic)
- return;
-
/*
* Convert 'gsi' to 'ioapic.pin'.
*/
for (i = 0; i < 16; i++) {
int idx;
- /* Skip the 8254 timer interrupt (IRQ 0) if requested. */
- if (i == 0 && disable_irq0_through_ioapic)
- continue;
-
for (idx = 0; idx < mp_irq_entries; idx++) {
struct mp_config_intsrc *irq = mp_irqs + idx;
return 0;
}
-/*
- * Don't register any I/O APIC entries for the 8254 timer IRQ.
- */
-static int __init
-dmi_disable_irq0_through_ioapic(const struct dmi_system_id *d)
-{
- pr_notice("%s detected: disabling IRQ 0 through I/O APIC\n", d->ident);
- disable_irq0_through_ioapic = 1;
- return 0;
-}
-
/*
* Force ignoring BIOS IRQ0 pin2 override
*/
DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
},
},
- /*
- * HP laptops which use a DSDT reporting as HP/SB400/10000,
- * which includes some code which overrides all temperature
- * trip points to 16C if the INTIN2 input of the I/O APIC
- * is enabled. This input is incorrectly designated the
- * ISA IRQ 0 via an interrupt source override even though
- * it is wired to the output of the master 8259A and INTIN0
- * is not connected at all. Abandon any attempts to route
- * IRQ 0 through the I/O APIC therefore.
- */
- {
- .callback = dmi_disable_irq0_through_ioapic,
- .ident = "HP NX6125 laptop",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"),
- },
- },
- {
- .callback = dmi_disable_irq0_through_ioapic,
- .ident = "HP NX6325 laptop",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
- },
- },
/*
* HP laptops which use a DSDT reporting as HP/SB400/10000,
* which includes some code which overrides all temperature