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Message-Id: <1361511887-29241-2-git-send-email-lig.fnst@cn.fujitsu.com>
Date: Fri, 22 Feb 2013 13:44:44 +0800
From: liguang <lig.fnst@...fujitsu.com>
To: linux-kernel@...r.kernel.org, rientjes@...gle.com, x86@...nel.org
Cc: liguang <lig.fnst@...fujitsu.com>
Subject: [rebased][PATCH 1/4] acpi: move x86/mm/srat.c to x86/kernel/acpi/srat.c
srat table should present only on acpi domain,
seems mm/ is not the right place for it.
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Signed-off-by: liguang <lig.fnst@...fujitsu.com>
---
arch/x86/kernel/acpi/Makefile | 1 +
arch/x86/kernel/acpi/srat.c | 278 +++++++++++++++++++++++++++++++++++++++++
arch/x86/mm/Makefile | 1 -
arch/x86/mm/srat.c | 278 -----------------------------------------
4 files changed, 279 insertions(+), 279 deletions(-)
create mode 100644 arch/x86/kernel/acpi/srat.c
delete mode 100644 arch/x86/mm/srat.c
diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 163b225..98cea92 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -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
diff --git a/arch/x86/kernel/acpi/srat.c b/arch/x86/kernel/acpi/srat.c
new file mode 100644
index 0000000..b20b5b7
--- /dev/null
+++ b/arch/x86/kernel/acpi/srat.c
@@ -0,0 +1,278 @@
+/*
+ * 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>
+
+int acpi_numa __initdata;
+
+static __init int setup_node(int pxm)
+{
+ return acpi_map_pxm_to_node(pxm);
+}
+
+static __init void bad_srat(void)
+{
+ printk(KERN_ERR "SRAT: SRAT not used.\n");
+ acpi_numa = -1;
+}
+
+static __init inline int srat_disabled(void)
+{
+ return acpi_numa < 0;
+}
+
+/* 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 (srat_disabled())
+ return;
+ 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 (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;
+ 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
+
+#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+static void __init
+handle_movablemem(int node, u64 start, u64 end, u32 hotpluggable)
+{
+ int overlap;
+ unsigned long start_pfn, end_pfn;
+
+ start_pfn = PFN_DOWN(start);
+ end_pfn = PFN_UP(end);
+
+ /*
+ * For movablemem_map=acpi:
+ *
+ * SRAT: |_____| |_____| |_________| |_________| ......
+ * node id: 0 1 1 2
+ * hotpluggable: n y y n
+ * movablemem_map: |_____| |_________|
+ *
+ * Using movablemem_map, we can prevent memblock from allocating memory
+ * on ZONE_MOVABLE at boot time.
+ */
+ if (hotpluggable && movablemem_map.acpi) {
+ insert_movablemem_map(start_pfn, end_pfn);
+ goto out;
+ }
+
+ /*
+ * For movablemem_map=nn[KMG]@ss[KMG]:
+ *
+ * SRAT: |_____| |_____| |_________| |_________| ......
+ * node id: 0 1 1 2
+ * user specified: |__| |___|
+ * movablemem_map: |___| |_________| |______| ......
+ *
+ * Using movablemem_map, we can prevent memblock from allocating memory
+ * on ZONE_MOVABLE at boot time.
+ *
+ * NOTE: In this case, SRAT info will be ingored.
+ */
+ overlap = movablemem_map_overlap(start_pfn, end_pfn);
+ if (overlap >= 0) {
+ /*
+ * If part of this range is in movablemem_map, we need to
+ * add the range after it to extend the range to the end
+ * of the node, because from the min address specified to
+ * the end of the node will be ZONE_MOVABLE.
+ */
+ start_pfn = max(start_pfn,
+ movablemem_map.map[overlap].start_pfn);
+ insert_movablemem_map(start_pfn, end_pfn);
+
+ /*
+ * Set the nodemask, so that if the address range on one node
+ * is not continuse, we can add the subsequent ranges on the
+ * same node into movablemem_map.
+ */
+ node_set(node, movablemem_map.numa_nodes_hotplug);
+ } else {
+ if (node_isset(node, movablemem_map.numa_nodes_hotplug))
+ /*
+ * Insert the range if we already have movable ranges
+ * on the same node.
+ */
+ insert_movablemem_map(start_pfn, end_pfn);
+ }
+out:
+ return;
+}
+#else /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
+static inline void
+handle_movablemem(int node, u64 start, u64 end, u32 hotpluggable)
+{
+}
+#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
+
+/* 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;
+ u32 hotpluggable;
+ int node, pxm;
+
+ if (srat_disabled())
+ goto out_err;
+ if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+ goto out_err_bad_srat;
+ if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
+ goto out_err;
+ hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
+ if (hotpluggable && !save_add_info())
+ goto out_err;
+
+ 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");
+ goto out_err_bad_srat;
+ }
+
+ if (numa_add_memblk(node, start, end) < 0)
+ goto out_err_bad_srat;
+
+ node_set(node, numa_nodes_parsed);
+
+ printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx] %s\n",
+ node, pxm,
+ (unsigned long long) start, (unsigned long long) end - 1,
+ hotpluggable ? "Hot Pluggable": "");
+
+ handle_movablemem(node, start, end, hotpluggable);
+
+ return 0;
+out_err_bad_srat:
+ bad_srat();
+out_err:
+ return -1;
+}
+
+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;
+}
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 23d8e5f..d6f3692 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -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
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
deleted file mode 100644
index b20b5b7..0000000
--- a/arch/x86/mm/srat.c
+++ /dev/null
@@ -1,278 +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>
-
-int acpi_numa __initdata;
-
-static __init int setup_node(int pxm)
-{
- return acpi_map_pxm_to_node(pxm);
-}
-
-static __init void bad_srat(void)
-{
- printk(KERN_ERR "SRAT: SRAT not used.\n");
- acpi_numa = -1;
-}
-
-static __init inline int srat_disabled(void)
-{
- return acpi_numa < 0;
-}
-
-/* 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 (srat_disabled())
- return;
- 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 (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;
- 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
-
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
-static void __init
-handle_movablemem(int node, u64 start, u64 end, u32 hotpluggable)
-{
- int overlap;
- unsigned long start_pfn, end_pfn;
-
- start_pfn = PFN_DOWN(start);
- end_pfn = PFN_UP(end);
-
- /*
- * For movablemem_map=acpi:
- *
- * SRAT: |_____| |_____| |_________| |_________| ......
- * node id: 0 1 1 2
- * hotpluggable: n y y n
- * movablemem_map: |_____| |_________|
- *
- * Using movablemem_map, we can prevent memblock from allocating memory
- * on ZONE_MOVABLE at boot time.
- */
- if (hotpluggable && movablemem_map.acpi) {
- insert_movablemem_map(start_pfn, end_pfn);
- goto out;
- }
-
- /*
- * For movablemem_map=nn[KMG]@ss[KMG]:
- *
- * SRAT: |_____| |_____| |_________| |_________| ......
- * node id: 0 1 1 2
- * user specified: |__| |___|
- * movablemem_map: |___| |_________| |______| ......
- *
- * Using movablemem_map, we can prevent memblock from allocating memory
- * on ZONE_MOVABLE at boot time.
- *
- * NOTE: In this case, SRAT info will be ingored.
- */
- overlap = movablemem_map_overlap(start_pfn, end_pfn);
- if (overlap >= 0) {
- /*
- * If part of this range is in movablemem_map, we need to
- * add the range after it to extend the range to the end
- * of the node, because from the min address specified to
- * the end of the node will be ZONE_MOVABLE.
- */
- start_pfn = max(start_pfn,
- movablemem_map.map[overlap].start_pfn);
- insert_movablemem_map(start_pfn, end_pfn);
-
- /*
- * Set the nodemask, so that if the address range on one node
- * is not continuse, we can add the subsequent ranges on the
- * same node into movablemem_map.
- */
- node_set(node, movablemem_map.numa_nodes_hotplug);
- } else {
- if (node_isset(node, movablemem_map.numa_nodes_hotplug))
- /*
- * Insert the range if we already have movable ranges
- * on the same node.
- */
- insert_movablemem_map(start_pfn, end_pfn);
- }
-out:
- return;
-}
-#else /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-static inline void
-handle_movablemem(int node, u64 start, u64 end, u32 hotpluggable)
-{
-}
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-
-/* 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;
- u32 hotpluggable;
- int node, pxm;
-
- if (srat_disabled())
- goto out_err;
- if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
- goto out_err_bad_srat;
- if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
- goto out_err;
- hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
- if (hotpluggable && !save_add_info())
- goto out_err;
-
- 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");
- goto out_err_bad_srat;
- }
-
- if (numa_add_memblk(node, start, end) < 0)
- goto out_err_bad_srat;
-
- node_set(node, numa_nodes_parsed);
-
- printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx] %s\n",
- node, pxm,
- (unsigned long long) start, (unsigned long long) end - 1,
- hotpluggable ? "Hot Pluggable": "");
-
- handle_movablemem(node, start, end, hotpluggable);
-
- return 0;
-out_err_bad_srat:
- bad_srat();
-out_err:
- return -1;
-}
-
-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;
-}
--
1.7.2.5
--
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