diff options
Diffstat (limited to 'src/acpi/acpi.c')
| -rw-r--r-- | src/acpi/acpi.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c index 25409295fc..a2865cbf7e 100644 --- a/src/acpi/acpi.c +++ b/src/acpi/acpi.c @@ -17,6 +17,7 @@ #include <acpi/acpi_ivrs.h> #include <acpi/acpigen.h> #include <arch/hpet.h> +#include <arch/smp/mpspec.h> #include <cbfs.h> #include <cbmem.h> #include <commonlib/helpers.h> @@ -225,6 +226,24 @@ int acpi_create_madt_ioapic_from_hw(acpi_madt_ioapic_t *ioapic, u32 addr) } #endif +u16 acpi_sci_int(void) +{ +#if ENV_X86 + 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; +#else + return 0; +#endif +} + int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride, u8 bus, u8 source, u32 gsirq, u16 flags) { @@ -238,6 +257,25 @@ int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride, return irqoverride->length; } +int acpi_create_madt_sci_override(acpi_madt_irqoverride_t *irqoverride) +{ + u8 gsi, irq, flags; + + ioapic_get_sci_pin(&gsi, &irq, &flags); + + if (!CONFIG(ACPI_HAVE_PCAT_8259)) + irq = gsi; + + irqoverride->type = IRQ_SOURCE_OVERRIDE; /* Interrupt source override */ + irqoverride->length = sizeof(acpi_madt_irqoverride_t); + irqoverride->bus = MP_BUS_ISA; + irqoverride->source = irq; + irqoverride->gsirq = gsi; + irqoverride->flags = flags; + + return irqoverride->length; +} + static int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu, u16 flags, u8 lint) { |