acpi: add SRAT Generic Initiator Affinity structure
Generic Initiator Affinity structure is introdcued in ACPI spec 6.3.
This structure is used to define NUMA affinity domain which is
established by generic initiator (such as by CXL device).
Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Change-Id: Ic6ef01c59e02f30dc290f27e741027e16f5d8359
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52734
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lance Zhao
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index 6c1828a..0874e6e 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -508,6 +508,23 @@
return mem->length;
}
+int acpi_create_srat_gia_pci(acpi_srat_gia_t *gia, u32 proximity_domain,
+ u16 seg, u8 bus, u8 dev, u8 func, u32 flags)
+{
+ gia->type = ACPI_SRAT_STRUCTURE_GIA;
+ gia->length = sizeof(acpi_srat_gia_t);
+ gia->proximity_domain = proximity_domain;
+ gia->dev_handle_type = ACPI_SRAT_GIA_DEV_HANDLE_PCI;
+ /* First two bytes has segment number */
+ memcpy(gia->dev_handle, &seg, 2);
+ gia->dev_handle[2] = bus; /* Byte 2 has bus number */
+ /* Byte 3 has bits 7:3 for dev, bits 2:0 for func */
+ gia->dev_handle[3] = PCI_SLOT(dev) | PCI_FUNC(func);
+ gia->flags = flags;
+
+ return gia->length;
+}
+
/* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */
void acpi_create_srat(acpi_srat_t *srat,
unsigned long (*acpi_fill_srat)(unsigned long current))