From 6a8126911a5ab167783fce18ae9cc70ec9b84fe2 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 16 Sep 2009 11:33:40 +0200 Subject: [PATCH] x86, EDAC: Provide function to return NodeId of a CPU Signed-off-by: Andreas Herrmann Signed-off-by: Borislav Petkov Acked-by: H. Peter Anvin --- arch/x86/include/asm/processor.h | 2 ++ arch/x86/kernel/cpu/amd.c | 10 ++++++++++ drivers/edac/edac_mce_amd.c | 2 +- 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index e08ea043e085..42a3f936dadc 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -1020,4 +1020,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip, extern int get_tsc_mode(unsigned long adr); extern int set_tsc_mode(unsigned int val); +extern int amd_get_nb_id(int cpu); + #endif /* _ASM_X86_PROCESSOR_H */ diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 22a47c82f3c0..f32fa71ccf97 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -333,6 +333,16 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c) #endif } +int amd_get_nb_id(int cpu) +{ + int id = 0; +#ifdef CONFIG_SMP + id = per_cpu(cpu_llc_id, cpu); +#endif + return id; +} +EXPORT_SYMBOL_GPL(amd_get_nb_id); + static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c) { #if defined(CONFIG_NUMA) && defined(CONFIG_X86_64) diff --git a/drivers/edac/edac_mce_amd.c b/drivers/edac/edac_mce_amd.c index c8ca7136dacc..0c21c370c9dd 100644 --- a/drivers/edac/edac_mce_amd.c +++ b/drivers/edac/edac_mce_amd.c @@ -405,7 +405,7 @@ void decode_mce(struct mce *m) regs.nbsh = (u32)(m->status >> 32); regs.nbeal = (u32) m->addr; regs.nbeah = (u32)(m->addr >> 32); - node = per_cpu(cpu_llc_id, m->extcpu); + node = amd_get_nb_id(m->extcpu); amd_decode_nb_mce(node, ®s, 1); break; -- 2.20.1