diff options
| author | Jiang Liu <[email protected]> | 2015-02-16 10:11:13 +0800 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-02-18 15:01:41 +0100 |
| commit | 1ea76fbadd667b19c4fa4466f3a3b55a505e83d9 (patch) | |
| tree | 6f01d2f24b71f767bfe810da645821faa2c53c3f | |
| parent | e07e0d4cb0c4bfe822ec8491cc06269096a38bea (diff) | |
x86/irq: Fix regression caused by commit b568b8601f05
Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt")
accidently removes support of legacy PIC interrupt when fixing a
regression for Xen, which causes a nasty regression on HP/Compaq
nc6000 where we fail to register the ACPI interrupt, and thus
lose eg. thermal notifications leading a potentially overheated
machine.
So reintroduce support of legacy PIC based ACPI SCI interrupt.
Reported-by: Ville Syrjälä <[email protected]>
Tested-by: Ville Syrjälä <[email protected]>
Signed-off-by: Jiang Liu <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Cc: <[email protected]> # 3.19+
Cc: H. Peter Anvin <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Sander Eikelenboom <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index a18fff361c7f..8b5916342902 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -613,6 +613,11 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) { int rc, irq, trigger, polarity; + if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { + *irqp = gsi; + return 0; + } + rc = acpi_get_override_irq(gsi, &trigger, &polarity); if (rc == 0) { trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; |