diff options
Diffstat (limited to 'src/arch/x86/acpi.c')
| -rw-r--r-- | src/arch/x86/acpi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c index ffa3463259..018cdf5cc3 100644 --- a/src/arch/x86/acpi.c +++ b/src/arch/x86/acpi.c @@ -1,12 +1,30 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi.h> +#include <arch/ioapic.h> #include <cf9_reset.h> #include <cpu/x86/smm.h> #include <pc80/mc146818rtc.h> +static u16 acpi_sci_int(void) +{ + u8 gsi, irq, flags; + + ioapic_get_sci_pin(&gsi, &irq, &flags); + + /* ACPI Release 6.5, 5.2.9 and 5.2.15.5. */ + if (!CONFIG(ACPI_HAVE_PCAT_8259)) + return gsi; + + assert(irq < 16); + return irq; +} + + void arch_fill_fadt(acpi_fadt_t *fadt) { + fadt->sci_int = acpi_sci_int(); + if (CONFIG(HAVE_CF9_RESET)) { fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO; fadt->reset_reg.bit_width = 8; |