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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-01-25 17:05:35 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-02-14 21:35:47 +0000 |
| commit | d591a5a328b7185f7e6e4ff755f74594e7232dfc (patch) | |
| tree | 4187210ef30a6c7b571e2bb1abafdf2daee1001b /src/acpi | |
| parent | fa6a85c8501c0f5566992ecd2ed98f2eaae77f7f (diff) | |
| download | coreboot-d591a5a328b7185f7e6e4ff755f74594e7232dfc.tar.xz | |
ACPI: Move common _PIC method
Change-Id: I659835354570fb1d4860fcbddf2a51831170a374
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50470
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/acpi')
| -rw-r--r-- | src/acpi/dsdt_top.asl | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/acpi/dsdt_top.asl b/src/acpi/dsdt_top.asl index 4300f0a65e..3e6bb1c530 100644 --- a/src/acpi/dsdt_top.asl +++ b/src/acpi/dsdt_top.asl @@ -16,3 +16,17 @@ Name (PICM, Zero) /* Power state (AC = 1) */ Name (PWRS, One) + +/* + * The _PIC method is called by the OS to choose between interrupt + * routing via the i8259 interrupt controller or the APIC. + * + * _PIC is called with a parameter of 0 for i8259 configuration and + * with a parameter of 1 for Local Apic/IOAPIC configuration. + */ + +Method (_PIC, 1) +{ + /* Remember the OS' IRQ routing choice. */ + PICM = Arg0 +} |