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authorTony Luck <tony.luck@intel.com>2008-04-17 10:12:55 -0700
committerTony Luck <tony.luck@intel.com>2008-04-17 10:12:55 -0700
commitfc494d6c1825de37f04abe147741d50be08403ab (patch)
treeab7b5f8a0732c3b588e958033fddb9029744097e /include/asm-ia64
parent78514c106b90b628a90c630a3bc87a6538aed865 (diff)
parent2c6e6db41f01b6b4eb98809350827c9678996698 (diff)
downloadop-kernel-dev-fc494d6c1825de37f04abe147741d50be08403ab.zip
op-kernel-dev-fc494d6c1825de37f04abe147741d50be08403ab.tar.gz
Pull percpureserve into release branch
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/acpi.h33
-rw-r--r--include/asm-ia64/numa.h2
2 files changed, 35 insertions, 0 deletions
diff --git a/include/asm-ia64/acpi.h b/include/asm-ia64/acpi.h
index cd1cc39..fcfad32 100644
--- a/include/asm-ia64/acpi.h
+++ b/include/asm-ia64/acpi.h
@@ -35,6 +35,7 @@
#include <linux/init.h>
#include <linux/numa.h>
#include <asm/system.h>
+#include <asm/numa.h>
#define COMPILER_DEPENDENT_INT64 long
#define COMPILER_DEPENDENT_UINT64 unsigned long
@@ -115,7 +116,11 @@ extern unsigned int is_cpu_cpei_target(unsigned int cpu);
extern void set_cpei_target_cpu(unsigned int cpu);
extern unsigned int get_cpei_target_cpu(void);
extern void prefill_possible_map(void);
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
extern int additional_cpus;
+#else
+#define additional_cpus 0
+#endif
#ifdef CONFIG_ACPI_NUMA
#if MAX_NUMNODES > 256
@@ -129,6 +134,34 @@ extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
#define acpi_unlazy_tlb(x)
+#ifdef CONFIG_ACPI_NUMA
+extern cpumask_t early_cpu_possible_map;
+#define for_each_possible_early_cpu(cpu) \
+ for_each_cpu_mask((cpu), early_cpu_possible_map)
+
+static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
+{
+ int low_cpu, high_cpu;
+ int cpu;
+ int next_nid = 0;
+
+ low_cpu = cpus_weight(early_cpu_possible_map);
+
+ high_cpu = max(low_cpu, min_cpus);
+ high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
+
+ for (cpu = low_cpu; cpu < high_cpu; cpu++) {
+ cpu_set(cpu, early_cpu_possible_map);
+ if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
+ node_cpuid[cpu].nid = next_nid;
+ next_nid++;
+ if (next_nid >= num_online_nodes())
+ next_nid = 0;
+ }
+ }
+}
+#endif /* CONFIG_ACPI_NUMA */
+
#endif /*__KERNEL__*/
#endif /*_ASM_ACPI_H*/
diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h
index 6a8a27c..3499ff5 100644
--- a/include/asm-ia64/numa.h
+++ b/include/asm-ia64/numa.h
@@ -22,6 +22,8 @@
#include <asm/mmzone.h>
+#define NUMA_NO_NODE -1
+
extern u16 cpu_to_node_map[NR_CPUS] __cacheline_aligned;
extern cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
extern pg_data_t *pgdat_list[MAX_NUMNODES];
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