linux-kernel - [PATCH] x86-64: conditionalize inclusion of some MTRR flavors

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Date:	Wed, 15 Nov 2006 15:04:33 +0000
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	"Andi Kleen" <ak@...e.de>
Cc:	<linux-kernel@...r.kernel.org>, <patches@...-64.org>
Subject: [PATCH] x86-64: conditionalize inclusion of some MTRR flavors

Avoid inclusion of code that's dead for x86-64.

Signed-off-by: Jan Beulich <jbeulich@...ell.com>

--- linux-2.6.19-rc5/arch/i386/kernel/cpu/mtrr/Makefile	2006-09-20 05:42:06.000000000 +0200
+++ 2.6.19-rc5-x86_64-mtrr/arch/i386/kernel/cpu/mtrr/Makefile	2006-11-09 13:38:13.000000000 +0100
@@ -1,5 +1,3 @@
 obj-y		:= main.o if.o generic.o state.o
-obj-y		+= amd.o
-obj-y		+= cyrix.o
-obj-y		+= centaur.o
+obj-$(CONFIG_X86_32) += amd.o cyrix.o centaur.o
 
--- linux-2.6.19-rc5/arch/i386/kernel/cpu/mtrr/main.c	2006-09-20 05:42:06.000000000 +0200
+++ 2.6.19-rc5-x86_64-mtrr/arch/i386/kernel/cpu/mtrr/main.c	2006-11-10 08:56:35.000000000 +0100
@@ -59,7 +59,11 @@ struct mtrr_ops * mtrr_if = NULL;
 static void set_mtrr(unsigned int reg, unsigned long base,
 		     unsigned long size, mtrr_type type);
 
+#ifndef CONFIG_X86_64
 extern int arr3_protected;
+#else
+#define arr3_protected 0
+#endif
 
 void set_mtrr_ops(struct mtrr_ops * ops)
 {
@@ -544,9 +548,11 @@ extern void centaur_init_mtrr(void);
 
 static void __init init_ifs(void)
 {
+#ifndef CONFIG_X86_64
 	amd_init_mtrr();
 	cyrix_init_mtrr();
 	centaur_init_mtrr();
+#endif
 }
 
 /* The suspend/resume methods are only for CPU without MTRR. CPU using generic


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