+ current = acpi_fill_mcfg(current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)mcfg;
+ header->checksum = acpi_checksum((void *)mcfg, header->length);
+}
+
+/*
+ * This can be overriden by platform ACPI setup code, if it calls
+ * acpi_create_ssdt_generator().
+ */
+unsigned long __attribute__((weak)) acpi_fill_ssdt_generator(
+ unsigned long current, const char *oem_table_id)
+{
+ return current;
+}
+
+void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id)
+{
+ unsigned long current = (unsigned long)ssdt + sizeof(acpi_header_t);
+
+ memset((void *)ssdt, 0, sizeof(acpi_header_t));
+
+ memcpy(&ssdt->signature, "SSDT", 4);
+ ssdt->revision = 2; /* ACPI 1.0/2.0: ?, ACPI 3.0/4.0: 2 */
+ memcpy(&ssdt->oem_id, OEM_ID, 6);
+ memcpy(&ssdt->oem_table_id, oem_table_id, 8);
+ ssdt->oem_revision = 42;
+ memcpy(&ssdt->asl_compiler_id, ASLC, 4);
+ ssdt->asl_compiler_revision = 42;
+ ssdt->length = sizeof(acpi_header_t);
+
+ acpigen_set_current((char *) current);
+ current = acpi_fill_ssdt_generator(current, oem_table_id);
+
+ /* (Re)calculate length and checksum. */
+ ssdt->length = current - (unsigned long)ssdt;
+ ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length);
+}
+
+int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic)
+{
+ memset((void *)lapic, 0, sizeof(acpi_srat_lapic_t));
+
+ lapic->type = 0; /* Processor local APIC/SAPIC affinity structure */
+ lapic->length = sizeof(acpi_srat_lapic_t);
+ lapic->flags = (1 << 0); /* Enabled (the use of this structure). */
+ lapic->proximity_domain_7_0 = node;
+ /* TODO: proximity_domain_31_8, local SAPIC EID, clock domain. */
+ lapic->apic_id = apic;
+
+ return lapic->length;
+}
+
+int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek,
+ u32 flags)
+{
+ mem->type = 1; /* Memory affinity structure */
+ mem->length = sizeof(acpi_srat_mem_t);
+ mem->base_address_low = (basek << 10);
+ mem->base_address_high = (basek >> (32 - 10));
+ mem->length_low = (sizek << 10);
+ mem->length_high = (sizek >> (32 - 10));
+ mem->proximity_domain = node;
+ mem->flags = flags;
+
+ return mem->length;
+}
+
+/* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */
+void acpi_create_srat(acpi_srat_t *srat)
+{
+ acpi_header_t *header = &(srat->header);
+ unsigned long current = (unsigned long)srat + sizeof(acpi_srat_t);
+
+ memset((void *)srat, 0, sizeof(acpi_srat_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "SRAT", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_srat_t);
+ header->revision = 1; /* ACPI 1.0: N/A, 2.0: 1, 3.0: 2, 4.0: 3 */
+
+ srat->resv = 1; /* Spec: Reserved to 1 for backwards compatibility. */
+
+ current = acpi_fill_srat(current);