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Message-Id: <1304090924-8197-10-git-send-email-tj@kernel.org>
Date: Fri, 29 Apr 2011 17:28:28 +0200
From: Tejun Heo <tj@...nel.org>
To: mingo@...hat.com, yinghai@...nel.org, rientjes@...gle.com,
tglx@...utronix.de, hpa@...or.com, x86@...nel.org,
linux-kernel@...r.kernel.org
Cc: Tejun Heo <tj@...nel.org>
Subject: [PATCH 09/25] x86, NUMA: rename srat_64.c to srat.c
Rename srat_64.c to srat.c. This is to prepare for unification of
NUMA init paths between 32 and 64bit.
Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: David Rientjes <rientjes@...gle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: "H. Peter Anvin" <hpa@...or.com>
---
arch/x86/mm/Makefile | 5 +-
arch/x86/mm/srat.c | 184 +++++++++++++++++++++++++++++++++++++++++++++++++
arch/x86/mm/srat_64.c | 184 -------------------------------------------------
3 files changed, 188 insertions(+), 185 deletions(-)
create mode 100644 arch/x86/mm/srat.c
delete mode 100644 arch/x86/mm/srat_64.c
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 3e608ed..37e7043 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -24,7 +24,10 @@ obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o
obj-$(CONFIG_NUMA) += numa.o numa_$(BITS).o
obj-$(CONFIG_AMD_NUMA) += amdtopology_64.o
-obj-$(CONFIG_ACPI_NUMA) += srat_$(BITS).o
+ifeq ($(CONFIG_ACPI_NUMA),y)
+obj-$(CONFIG_X86_64) += srat.o
+obj-$(CONFIG_X86_32) += srat_32.o
+endif
obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
new file mode 100644
index 0000000..9994d2c
--- /dev/null
+++ b/arch/x86/mm/srat.c
@@ -0,0 +1,184 @@
+/*
+ * 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;
+ node = setup_node(pxm);
+ if (node < 0) {
+ printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
+ bad_srat();
+ return;
+ }
+
+ apic_id = pa->apic_id;
+ 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;
+ 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 */
+void __init
+acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
+{
+ unsigned long start, end;
+ int node, pxm;
+
+ if (srat_disabled())
+ return;
+ if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
+ bad_srat();
+ return;
+ }
+ if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
+ return;
+
+ if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
+ return;
+ start = ma->base_address;
+ end = start + ma->length;
+ pxm = ma->proximity_domain;
+ node = setup_node(pxm);
+ if (node < 0) {
+ printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+ bad_srat();
+ return;
+ }
+
+ if (numa_add_memblk(node, start, end) < 0) {
+ bad_srat();
+ return;
+ }
+
+ printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
+ start, end);
+}
+
+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/srat_64.c b/arch/x86/mm/srat_64.c
deleted file mode 100644
index 9994d2c..0000000
--- a/arch/x86/mm/srat_64.c
+++ /dev/null
@@ -1,184 +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;
- node = setup_node(pxm);
- if (node < 0) {
- printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
- bad_srat();
- return;
- }
-
- apic_id = pa->apic_id;
- 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;
- 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 */
-void __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
-{
- unsigned long start, end;
- int node, pxm;
-
- if (srat_disabled())
- return;
- if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
- bad_srat();
- return;
- }
- if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
- return;
-
- if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
- return;
- start = ma->base_address;
- end = start + ma->length;
- pxm = ma->proximity_domain;
- node = setup_node(pxm);
- if (node < 0) {
- printk(KERN_ERR "SRAT: Too many proximity domains.\n");
- bad_srat();
- return;
- }
-
- if (numa_add_memblk(node, start, end) < 0) {
- bad_srat();
- return;
- }
-
- printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
- start, end);
-}
-
-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;
-}
--
1.7.1
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