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| author | Andi Kleen <ak@suse.de> | 2005-09-12 18:49:24 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-12 19:49:56 +0200 |
| commit | df0cc26b1b7f88f46307eea50a7469f0b58132d9 (patch) | |
| tree | c4b4c7c38ca7833cabcd06c2929f617446939d76 | |
| parent | [PATCH] x86-64: Support dualcore and 8 socket systems in k8 fallback node par... (diff) | |
| download | linux-df0cc26b1b7f88f46307eea50a7469f0b58132d9.tar.xz linux-df0cc26b1b7f88f46307eea50a7469f0b58132d9.zip | |
[PATCH] x86-64: Use SRAT data on Intel systems too.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index df55a63f8866..869770da2933 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -942,6 +942,25 @@ static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c) return 1; } +static void srat_detect_node(void) +{ +#ifdef CONFIG_NUMA + unsigned apicid, node; + int cpu = smp_processor_id(); + + /* Don't do the funky fallback heuristics the AMD version employs + for now. */ + apicid = phys_proc_id[cpu]; + node = apicid_to_node[apicid]; + if (node == NUMA_NO_NODE) + node = 0; + cpu_to_node[cpu] = node; + + if (acpi_numa > 0) + printk(KERN_INFO "CPU %d -> Node %d\n", cpu, node); +#endif +} + static void __cpuinit init_intel(struct cpuinfo_x86 *c) { /* Cache sizes */ @@ -960,6 +979,8 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c) if (c->x86 >= 15) set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability); c->x86_num_cores = intel_num_cpu_cores(c); + + srat_detect_node(); } static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c) |