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x86: change NR_CPUS arrays in numa_64
Change the following static arrays sized by NR_CPUS to per_cpu data variables: char cpu_to_node_map[NR_CPUS]; Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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3b41908902
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6 changed files with 38 additions and 10 deletions
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@ -65,6 +65,7 @@
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#include <asm/cacheflush.h>
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#include <asm/mce.h>
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#include <asm/ds.h>
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#include <asm/topology.h>
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#ifdef CONFIG_PARAVIRT
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#include <asm/paravirt.h>
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@ -359,8 +360,9 @@ void __init setup_arch(char **cmdline_p)
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io_delay_init();
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#ifdef CONFIG_SMP
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/* setup to use the static apicid table during kernel startup */
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/* setup to use the early static init tables during kernel startup */
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x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
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x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
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#endif
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#ifdef CONFIG_ACPI
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@ -861,9 +861,12 @@ void __init smp_set_apicids(void)
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int cpu;
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for_each_possible_cpu(cpu) {
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if (per_cpu_offset(cpu))
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if (per_cpu_offset(cpu)) {
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per_cpu(x86_cpu_to_apicid, cpu) =
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x86_cpu_to_apicid_init[cpu];
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per_cpu(x86_cpu_to_node_map, cpu) =
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x86_cpu_to_node_map_init[cpu];
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}
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else
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printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
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cpu);
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@ -871,6 +874,7 @@ void __init smp_set_apicids(void)
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/* indicate the early static arrays are gone */
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x86_cpu_to_apicid_early_ptr = NULL;
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x86_cpu_to_node_map_early_ptr = NULL;
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}
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static void __init smp_cpu_index_default(void)
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@ -31,10 +31,14 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
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struct memnode memnode;
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u16 cpu_to_node_map[NR_CPUS] __read_mostly = {
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u16 x86_cpu_to_node_map_init[NR_CPUS] __initdata = {
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[0 ... NR_CPUS-1] = NUMA_NO_NODE
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};
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EXPORT_SYMBOL(cpu_to_node_map);
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void *x86_cpu_to_node_map_early_ptr;
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EXPORT_SYMBOL(x86_cpu_to_node_map_init);
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EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
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DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
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EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
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u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
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[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
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@ -544,7 +548,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
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node_set(0, node_possible_map);
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for (i = 0; i < NR_CPUS; i++)
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numa_set_node(i, 0);
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/* we can't use cpumask_of_cpu() yet */
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/* cpumask_of_cpu() may not be available during early startup */
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memset(&node_to_cpumask_map[0], 0, sizeof(node_to_cpumask_map[0]));
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cpu_set(0, node_to_cpumask_map[0]);
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e820_register_active_regions(0, start_pfn, end_pfn);
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@ -558,8 +562,16 @@ __cpuinit void numa_add_cpu(int cpu)
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void __cpuinit numa_set_node(int cpu, int node)
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{
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u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
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cpu_pda(cpu)->nodenumber = node;
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cpu_to_node_map[cpu] = node;
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if(cpu_to_node_map)
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cpu_to_node_map[cpu] = node;
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else if(per_cpu_offset(cpu))
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per_cpu(x86_cpu_to_node_map, cpu) = node;
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else
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Dprintk(KERN_INFO "Setting node for non-present cpu %d\n", cpu);
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}
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unsigned long __init numa_free_all_bootmem(void)
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@ -40,6 +40,4 @@ static inline void clear_node_cpumask(int cpu)
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#define clear_node_cpumask(cpu) do {} while (0)
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#endif
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#define NUMA_NO_NODE 0xffff
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#endif
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@ -30,13 +30,24 @@
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#include <asm/mpspec.h>
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/* Mappings between logical cpu number and node number */
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extern u16 cpu_to_node_map[];
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DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
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extern u16 __initdata x86_cpu_to_node_map_init[];
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extern void *x86_cpu_to_node_map_early_ptr;
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extern cpumask_t node_to_cpumask_map[];
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#define NUMA_NO_NODE ((u16)(~0))
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/* Returns the number of the node containing CPU 'cpu' */
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static inline int cpu_to_node(int cpu)
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{
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return cpu_to_node_map[cpu];
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u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
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if (cpu_to_node_map)
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return cpu_to_node_map[cpu];
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else if (per_cpu_offset(cpu))
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return per_cpu(x86_cpu_to_node_map, cpu);
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else
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return NUMA_NO_NODE;
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}
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/*
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@ -18,6 +18,7 @@
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/sched.h>
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#include <linux/sunrpc/types.h>
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#include <linux/sunrpc/xdr.h>
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