linux-kernel - [PATCH 3/9] x86: add srat_detect

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Date:	Sun,  7 Sep 2008 17:58:52 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Yinghai Lu <yhlu.kernel@...il.com>
Subject: [PATCH 3/9] x86: add srat_detect_node for amd64

seperate that from amd_detect_cmp()

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
---
 arch/x86/kernel/cpu/amd_64.c |   19 ++++++++++++-------
 1 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/amd_64.c b/arch/x86/kernel/cpu/amd_64.c
index 466a1ea..20c3f12 100644
--- a/arch/x86/kernel/cpu/amd_64.c
+++ b/arch/x86/kernel/cpu/amd_64.c
@@ -36,19 +36,23 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
 	unsigned bits;
-#ifdef CONFIG_NUMA
-	int cpu = smp_processor_id();
-	int node = 0;
-	unsigned apicid = hard_smp_processor_id();
-#endif
+
 	bits = c->x86_coreid_bits;
 
 	/* Low order bits define the core id (index of core in socket) */
 	c->cpu_core_id = c->initial_apicid & ((1 << bits)-1);
 	/* Convert the initial APIC ID into the socket ID */
 	c->phys_proc_id = c->initial_apicid >> bits;
+#endif
+}
 
+static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
+{
 #ifdef CONFIG_NUMA
+	int cpu = smp_processor_id();
+	int node;
+	unsigned apicid = hard_smp_processor_id();
+
 	node = c->phys_proc_id;
 	if (apicid_to_node[apicid] != NUMA_NO_NODE)
 		node = apicid_to_node[apicid];
@@ -76,7 +80,6 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
 
 	printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
 #endif
-#endif
 }
 
 static void __cpuinit early_init_amd_mc(struct cpuinfo_x86 *c)
@@ -169,8 +172,10 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	display_cacheinfo(c);
 
 	/* Multi core CPU? */
-	if (c->extended_cpuid_level >= 0x80000008)
+	if (c->extended_cpuid_level >= 0x80000008) {
 		amd_detect_cmp(c);
+		srat_detect_node(c);
+	}
 
 	if (c->extended_cpuid_level >= 0x80000006) {
 		if ((c->x86 >= 0x0f) && (cpuid_edx(0x80000006) & 0xf000))
-- 
1.5.4.5

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