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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2023-04-10 16:45:39 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2023-04-26 10:52:21 +0000 |
| commit | ae1b2d49cf0ad09ff8f1e3904a9e7b23d6fb423b (patch) | |
| tree | 41a0e28f6df404725371c5d5c57162bd9f9653d8 /src/include/acpi | |
| parent | ddc37d69cb29327217151bd15a906177bc7949de (diff) | |
soc/intel: Introduce ioapic_get_sci_pin()
According to ACPI Release 6.5 systems supporting PIC (i8259)
interrupt mechanism need to report IRQ vector for the SCI_INT
field. In PIC mode only IRQ0..15 are allowed hardware vectors.
This change should cover section 5.2.9 to not pass SCI_INT
larger than IRQ15. Section 5.2.15.5 needs follow-up work.
Care should be taken that ioapic_get_sci_pin() is called
after platform code has potentially changed the routing
from the default.
It appears touched all platforms except siemens/mc_aplX
currently program SCI as IRQ9.
Change-Id: I723c207f1dcbba5e6fc0452fe1dbd087fad290ee
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74326
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/include/acpi')
| -rw-r--r-- | src/include/acpi/acpi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h index 58db58cdd0..2c8f2efcc4 100644 --- a/src/include/acpi/acpi.h +++ b/src/include/acpi/acpi.h @@ -1338,12 +1338,15 @@ int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr, int acpi_create_madt_ioapic_from_hw(acpi_madt_ioapic_t *ioapic, u32 addr); int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride, u8 bus, u8 source, u32 gsirq, u16 flags); +int acpi_create_madt_sci_override(acpi_madt_irqoverride_t *irqoverride); unsigned long acpi_create_madt_one_lapic(unsigned long current, u32 cpu, u32 apic); unsigned long acpi_create_madt_lapics_with_nmis(unsigned long current); unsigned long acpi_create_madt_lapic_nmis(unsigned long current); +u16 acpi_sci_int(void); + int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic); int acpi_create_srat_x2apic(acpi_srat_x2apic_t *x2apic, u32 node, u32 apic); int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek, |