/* Callback for Proximity Domain -> LAPIC mapping */ void __init acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { int pxm, node; int apic_id; if (srat_disabled()) return; if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) { bad_srat(); return; } if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0) return; pxm = pa->proximity_domain_lo; node = setup_node(pxm); if (node < 0) { printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm); bad_srat(); return; } if (get_uv_system_type() >= UV_X2APIC) apic_id = (pa->apic_id << 8) | pa->local_sapic_eid; else apic_id = pa->apic_id; apicid_to_node[apic_id] = node; node_set(node, cpu_nodes_parsed); acpi_numa = 1; printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n", pxm, apic_id, node); }
/* Callback for Proximity Domain -> LAPIC mapping */ void __init acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { int pxm, node; int apic_id; if (srat_disabled()) return; /* 헤더 크기가 일치하지 않으면 에러출력, disable, 리턴 */ if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) { bad_srat(); return; } if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0) return; pxm = pa->proximity_domain_lo; if (acpi_srat_revision >= 2) pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8; /* ACPI로 부터 얻어온 pxm으로부터 node를 얻어온다 */ node = setup_node(pxm); if (node < 0) { printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm); bad_srat(); return; } /* ACPI로 부터 얻어온 apic id 설정 */ if (get_uv_system_type() >= UV_X2APIC) apic_id = (pa->apic_id << 8) | pa->local_sapic_eid; else apic_id = pa->apic_id; if (apic_id >= MAX_LOCAL_APIC) { printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u skipped apicid that is too big\n", pxm, apic_id, node); return; } /* node에 apic id 설정 */ set_apicid_to_node(apic_id, node); node_set(node, numa_nodes_parsed); acpi_numa = 1; printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u\n", pxm, apic_id, node); }