linux-kernel - [PATCH 07/79] [PATCH] provide specialized identification routines for x86

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Date:	Wed, 19 Mar 2008 14:25:02 -0300
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, tglx@...utronix.de, mingo@...e.hu,
	ak@...e.de, Glauber Costa <gcosta@...hat.com>
Subject: [PATCH 07/79] [PATCH] provide specialized identification routines for x86_64

From: Glauber Costa <gcosta@...hat.com>

provide two specialized identify_secondary_cpu() and identify_boot_cpu()
routines for x86_64. Although not strictly needed, they are functionally
correct, and will ease integration with i386

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/setup_64.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 089ce10..352aa23 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -1051,14 +1051,24 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 #endif
 	select_idle_routine(c);
 
-	if (c != &boot_cpu_data)
-		mtrr_ap_init();
 #ifdef CONFIG_NUMA
 	numa_add_cpu(smp_processor_id());
 #endif
 
 }
 
+void __cpuinit identify_boot_cpu(void)
+{
+	identify_cpu(&boot_cpu_data);
+}
+
+void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
+{
+	BUG_ON(c == &boot_cpu_data);
+	identify_cpu(c);
+	mtrr_ap_init();
+}
+
 static __init int setup_noclflush(char *arg)
 {
 	setup_clear_cpu_cap(X86_FEATURE_CLFLSH);
-- 
1.5.0.6

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