diff options
| author | Andi Kleen <ak@suse.de> | 2006-07-10 15:06:21 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-10 22:12:33 (GMT) |
| commit | 1cfcea1b2d67987ddb84dc75f454321bcf536555 (patch) | |
| tree | 0a64e00386cafff9c55cd675927a00064f3d4cd3 /arch | |
| parent | 46f6976101c359202422753d15955f67aafabe2b (diff) | |
| download | linux-1cfcea1b2d67987ddb84dc75f454321bcf536555.tar.xz | |
[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')
| -rw-r--r-- | arch/i386/oprofile/nmi_int.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c index fa8a37b..c8c1df8 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 |