linux-stable/arch/x86/kernel/acpi
Eric W. Biederman 2c2df8418a x86, acpi/irq: Introduce apci_isa_irq_to_gsi
There are a number of cases where the current code makes the assumption
that isa irqs identity map to the first 16 acpi global system intereupts.
In most instances that assumption is correct as that is the required
behaviour in dual i8259 mode and the default behavior in ioapic mode.

However there are some systems out there that take advantage of acpis
interrupt remapping  for the isa irqs to have a completely different
mapping of isa_irq to gsi.

Introduce acpi_isa_irq_to_gsi to perform this mapping explicitly in the
code that needs it.  Initially this will be just the current assumed
identity mapping to ensure it's introduction does not cause regressions.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
LKML-Reference: <1269936436-7039-1-git-send-email-ebiederm@xmission.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-05-04 13:34:23 -07:00
..
realmode x86: Document linker script ASSERT() quirk 2009-10-16 07:18:46 +02:00
boot.c x86, acpi/irq: Introduce apci_isa_irq_to_gsi 2010-05-04 13:34:23 -07:00
cstate.c ACPI: Use the ARB_DISABLE for the CPU which model id is less than 0x0f. 2009-12-14 21:54:30 -05:00
Makefile ACPI: processor: unify arch_acpi_processor_cleanup_pdc 2009-12-22 03:24:14 -05:00
sleep.c ACPI: introduce kernel parameter acpi_sleep=sci_force_enable 2009-12-30 18:32:01 -05:00
sleep.h x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
wakeup_32.S x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
wakeup_64.S Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core 2009-02-24 21:50:43 +01:00
wakeup_rm.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00