From 1cfcea1b2d67987ddb84dc75f454321bcf536555 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 10 Jul 2006 17:06:21 +0200 Subject: [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 Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/oprofile/nmi_int.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'arch/i386') 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 #include #include +#include #include #include #include @@ -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 -- cgit v1.2.3-70-g09d2