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ACPI: Altix: ACPI _PRT support

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Provide ACPI _PRT support for SN Altix systems.

The SN Altix platform does not conform to the
IOSAPIC IRQ routing model, so a new acpi_irq_model
(ACPI_IRQ_MODEL_PLATFORM) has been defined. The SN
platform specific code sets acpi_irq_model to
this new value, and keys off of it in acpi_register_gsi()
to avoid the iosapic code path.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
John Keller
2006-12-22 11:50:04 -06:00
committed by Len Brown
parent a7ec3f5289
commit 3948ec9406
4 changed files with 10 additions and 0 deletions
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3
arch/ia64/sn/kernel/io_acpi_init.c
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@ -223,6 +223,9 @@ sn_io_acpi_init(void)
u64 result;
s64 status;
/* SN Altix does not follow the IOSAPIC IRQ routing model */
acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
acpi_bus_register_driver(&acpi_sn_hubdev_driver);
status = sal_ioif_init(&result);
if (status || result)