dect/linux-2.6
Archived
14
0
Fork 0
Code Releases Activity

Oprofile: Change CPUIDS from decimal to hex, and add some comments

Browse source 
Back when the patch was submitted for "Add Xeon 7500 series support to
oprofile", Robert Richter had asked for a followon patch that
converted all the CPU ID values to hex.

I have done that here for the "i386/core_i7" and "i386/atom" class
processors in the ppro_init() function and also added some comments on
where to find documentation on the Intel processors.

Signed-off-by: John L. Villalovos <john.l.villalovos@intel.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
This commit is contained in:
John Villalovos 2010-05-07 12:41:40 -04:00 committed by Robert Richter
parent cc49b092d3
commit 45c34e05c4
1 changed files with 14 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
arch/x86/oprofile/nmi_int.c
View file

@ -634,6 +634,18 @@ static int __init ppro_init(char **cpu_type)
if (force_arch_perfmon && cpu_has_arch_perfmon)
return 0;
/*
* Documentation on identifying Intel processors by CPU family
* and model can be found in the Intel Software Developer's
* Manuals (SDM):
*
* http://www.intel.com/products/processor/manuals/
*
* As of May 2010 the documentation for this was in the:
* "Intel 64 and IA-32 Architectures Software Developer's
* Manual Volume 3B: System Programming Guide", "Table B-1
* CPUID Signature Values of DisplayFamily_DisplayModel".
*/
switch (cpu_model) {
case 0 ... 2:
*cpu_type = "i386/ppro";
@ -655,12 +667,12 @@ static int __init ppro_init(char **cpu_type)
case 15: case 23:
*cpu_type = "i386/core_2";
break;
case 0x1a:
case 0x2e:
case 26:
spec = &op_arch_perfmon_spec;
*cpu_type = "i386/core_i7";
break;
case 28:
case 0x1c:
*cpu_type = "i386/atom";
break;
default: