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authorAndi Kleen <ak@suse.de>2006-07-10 17:06:21 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-10 15:12:33 -0700
commit1cfcea1b2d67987ddb84dc75f454321bcf536555 (patch)
tree0a64e00386cafff9c55cd675927a00064f3d4cd3 /arch/i386/oprofile
parent46f6976101c359202422753d15955f67aafabe2b (diff)
downloadlinux-2.6.34-ux500-1cfcea1b2d67987ddb84dc75f454321bcf536555.tar.gz
[PATCH] x86_64: Allow oprofile for model P4 models
Add it for P4 model 6 - reported to work and have a similar PMU to earlier P4s. Add an p4force=1 module override parameter for future use. We had a discussion about that earlier - it's a trade off between the PMU staying compatible or not. I think the force parameter is a reasonable compromise. Cc: oprofile-list@lists.sf.net Cc: Asit Mallick <asit.k.mallick@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/oprofile')
-rw-r--r--arch/i386/oprofile/nmi_int.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c
index fa8a37bcb39..c8c1df8ff2b 100644
--- a/arch/i386/oprofile/nmi_int.c
+++ b/arch/i386/oprofile/nmi_int.c
@@ -13,6 +13,7 @@
#include <linux/oprofile.h>
#include <linux/sysdev.h>
#include <linux/slab.h>
+#include <linux/moduleparam.h>
#include <asm/nmi.h>
#include <asm/msr.h>
#include <asm/apic.h>
@@ -296,12 +297,14 @@ static int nmi_create_files(struct super_block * sb, struct dentry * root)
return 0;
}
+static int p4force;
+module_param(p4force, int, 0);
static int __init p4_init(char ** cpu_type)
{
__u8 cpu_model = boot_cpu_data.x86_model;
- if (cpu_model > 4)
+ if (!p4force && (cpu_model > 6 || cpu_model == 5))
return 0;
#ifndef CONFIG_SMP