diff options
| author | Naresh Solanki <naresh.solanki@9elements.com> | 2023-09-25 14:24:34 +0200 |
|---|---|---|
| committer | Lean Sheng Tan <sheng.tan@9elements.com> | 2023-12-06 13:07:27 +0000 |
| commit | 1fe1904f385076f9390441e017efdbb7673f6da8 (patch) | |
| tree | 2c73b52b2ec0a4a59511af47438abce29e8a4666 /src | |
| parent | 6920c6f232600cc828ac102bc0636043b4b956c9 (diff) | |
acpi/acpi_gic: Add GIC ITS subtable
Add support for generating GIC subtable ITS (Interrupt Translator
Service).
Change-Id: I1bcb3ad24de64cbba8aeef7ba7254d3157e0dc43
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78115
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/acpi/acpi_gic.c | 26 | ||||
| -rw-r--r-- | src/include/acpi/acpi.h | 1 |
2 files changed, 27 insertions, 0 deletions
diff --git a/src/acpi/acpi_gic.c b/src/acpi/acpi_gic.c index e9ae370c4c..13e5a50a7d 100644 --- a/src/acpi/acpi_gic.c +++ b/src/acpi/acpi_gic.c @@ -79,11 +79,37 @@ static unsigned long acpi_create_madt_gicr_v3(unsigned long current) return current + gicr->length; } +__weak int platform_get_gic_its(uintptr_t **base) +{ + return 0; +} + +static unsigned long acpi_create_madt_gic_its_v3(unsigned long current) +{ + int i, its_count; + uintptr_t *its_base; + + its_count = platform_get_gic_its(&its_base); + + for (i = 0; i < its_count; i++) { + acpi_madt_gic_its_t *gic_its = (acpi_madt_gic_its_t *)current; + memset(gic_its, 0, sizeof(acpi_madt_gic_its_t)); + gic_its->type = GIC_ITS; + gic_its->gic_its_id = i; + gic_its->physical_base_address = its_base[i]; + gic_its->length = sizeof(acpi_madt_gic_its_t); + + current = current + gic_its->length; + } + return current; +} + unsigned long acpi_arch_fill_madt(acpi_madt_t *madt, unsigned long current) { current = acpi_create_madt_giccs_v3(current); current = acpi_create_madt_gicd_v3(current); current = acpi_create_madt_gicr_v3(current); + current = acpi_create_madt_gic_its_v3(current); return current; } diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h index b405e20431..1684e71840 100644 --- a/src/include/acpi/acpi.h +++ b/src/include/acpi/acpi.h @@ -1706,6 +1706,7 @@ unsigned long acpi_create_madt_lapic_nmis(unsigned long current); uintptr_t platform_get_gicd_base(void); uintptr_t platform_get_gicr_base(void); +int platform_get_gic_its(uintptr_t **base); 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); |