@@ -1,5 +1,6 @@
obj-$(CONFIG_ACPI) += boot.o
obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_NUMA) += srat.o
ifneq ($(CONFIG_ACPI_PROCESSOR),)
obj-y += cstate.o
@@ -24,7 +24,6 @@ obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o
obj-$(CONFIG_NUMA) += numa.o numa_$(BITS).o
obj-$(CONFIG_AMD_NUMA) += amdtopology.o
-obj-$(CONFIG_ACPI_NUMA) += srat.o
obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
obj-$(CONFIG_MEMTEST) += memtest.o
deleted file mode 100644
@@ -1,191 +0,0 @@
-/*
- * ACPI 3.0 based NUMA setup
- * Copyright 2004 Andi Kleen, SuSE Labs.
- *
- * Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
- *
- * Called from acpi_numa_init while reading the SRAT and SLIT tables.
- * Assumes all memory regions belonging to a single proximity domain
- * are in one chunk. Holes between them will be included in the node.
- */
-
-#include <linux/kernel.h>
-#include <linux/acpi.h>
-#include <linux/mmzone.h>
-#include <linux/bitmap.h>
-#include <linux/module.h>
-#include <linux/topology.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
-#include <linux/mm.h>
-#include <asm/proto.h>
-#include <asm/numa.h>
-#include <asm/e820.h>
-#include <asm/apic.h>
-#include <asm/uv/uv.h>
-
-static bool acpi_numa __initdata;
-
-static __init int setup_node(int pxm)
-{
- return acpi_map_pxm_to_node(pxm);
-}
-
-void __init bad_srat(void)
-{
- printk(KERN_ERR "SRAT: SRAT not used.\n");
- acpi_numa = false;
-}
-
-bool __init srat_disabled(void)
-{
- return acpi_numa;
-}
-
-/* Callback for SLIT parsing */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
- int i, j;
-
- for (i = 0; i < slit->locality_count; i++)
- for (j = 0; j < slit->locality_count; j++)
- numa_set_distance(pxm_to_node(i), pxm_to_node(j),
- slit->entry[slit->locality_count * i + j]);
-}
-
-/* Callback for Proximity Domain -> x2APIC mapping */
-void __init
-acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
-{
- int pxm, node;
- int apic_id;
-
- if (pa->header.length < sizeof(struct acpi_srat_x2apic_cpu_affinity)) {
- bad_srat();
- return;
- }
- if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0)
- return;
- pxm = pa->proximity_domain;
- apic_id = pa->apic_id;
- if (!apic->apic_id_valid(apic_id)) {
- printk(KERN_INFO "SRAT: PXM %u -> X2APIC 0x%04x ignored\n",
- pxm, apic_id);
- return;
- }
- node = setup_node(pxm);
- if (node < 0) {
- printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
- bad_srat();
- return;
- }
-
- if (apic_id >= MAX_LOCAL_APIC) {
- printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u skipped apicid that is too big\n", pxm, apic_id, node);
- return;
- }
- set_apicid_to_node(apic_id, node);
- node_set(node, numa_nodes_parsed);
- acpi_numa = 1;
- printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> 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 (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;
- 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;
-
- 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;
- }
-
- 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);
-}
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-static inline int save_add_info(void) {return 1;}
-#else
-static inline int save_add_info(void) {return 0;}
-#endif
-
-/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
-int __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
-{
- u64 start, end;
- int node, pxm;
-
- if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
- bad_srat();
- return -1;
- }
- if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
- return -1;
-
- if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
- return -1;
- start = ma->base_address;
- end = start + ma->length;
- pxm = ma->proximity_domain;
- if (acpi_srat_revision <= 1)
- pxm &= 0xff;
- node = setup_node(pxm);
- if (node < 0) {
- printk(KERN_ERR "SRAT: Too many proximity domains.\n");
- bad_srat();
- return -1;
- }
-
- if (numa_add_memblk(node, start, end) < 0) {
- bad_srat();
- return -1;
- }
-
- node_set(node, numa_nodes_parsed);
-
- printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]\n",
- node, pxm,
- (unsigned long long) start, (unsigned long long) end - 1);
- return 0;
-}
-
-void __init acpi_numa_arch_fixup(void) {}
-
-int __init x86_acpi_numa_init(void)
-{
- int ret;
-
- ret = acpi_numa_init();
- if (ret < 0)
- return ret;
- return srat_disabled() ? -EINVAL : 0;
-}
srat table should present only on acpi domain, seems mm/ is not the right place for it. Signed-off-by: liguang <lig.fnst@cn.fujitsu.com> --- arch/x86/kernel/acpi/Makefile | 1 + arch/x86/mm/Makefile | 1 - arch/x86/mm/srat.c | 191 ----------------------------------------- 3 files changed, 1 insertions(+), 192 deletions(-) delete mode 100644 arch/x86/mm/srat.c