The patch titled
Enable OProfile on Pentium D
has been removed from the -mm tree. Its filename is
enable-oprofile-on-pentium-d.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Enable OProfile on Pentium D
From: "Santos, Jose Renato G" <joserenato.santos@xxxxxx>
At initialization Oprofile checks if the cpu model returned by the CPUID
instruction is a valid one. For Intel p4 family this is done at p4_init() in
arch/i386/oprofile/nmi_int.c.
The problem is that Oprofile returns 0 (initialization failure) if the CPU
model is greater than 4, i.e it only recognizes CPU models 0,1,2,3 and 4. The
CPUID instruction on pentium D family 900 returns 6 for the CPU model . This
prevents Oprofile to use HW performance counters (since it does not know that
CPU model) and falls back to timer mode.
The patch adds the CPU model 6 as a valid CPU model for Intel P4 family.
Signed-off-by: Jose Renato Santos <jsantos@xxxxxxxxxx>
Cc: Philippe Elie <phil.el@xxxxxxxxxx>
Cc: John Levon <levon@xxxxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxx>
Cc: Rohit Seth <rohitseth@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/oprofile/nmi_int.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/i386/oprofile/nmi_int.c~enable-oprofile-on-pentium-d arch/i386/oprofile/nmi_int.c
--- a/arch/i386/oprofile/nmi_int.c~enable-oprofile-on-pentium-d
+++ a/arch/i386/oprofile/nmi_int.c
@@ -331,7 +331,7 @@ static int __init p4_init(char ** cpu_ty
{
__u8 cpu_model = boot_cpu_data.x86_model;
- if (cpu_model > 4)
+ if ((cpu_model > 6) || (cpu_model == 5))
return 0;
#ifndef CONFIG_SMP
_
Patches currently in -mm which might be from joserenato.santos@xxxxxx are
-
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