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authorJohn Villalovos <sodarock@gmail.com>2010-05-07 12:41:40 -0400
committerRobert Richter <robert.richter@amd.com>2010-05-10 09:08:33 -0400
commit45c34e05c4e3d36e7c44e790241ea11a1d90d54e (patch)
tree2e8c01cccf2948f1dddcbf2af9e5e14c9222a806
parentcc49b092d308f8ea8634134b0d95d831a88a674b (diff)
Oprofile: Change CPUIDS from decimal to hex, and add some comments
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>
-rw-r--r--arch/x86/oprofile/nmi_int.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index b28d2f1253bb..1ba67dc8006a 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -634,6 +634,18 @@ static int __init ppro_init(char **cpu_type)
634 if (force_arch_perfmon && cpu_has_arch_perfmon) 634 if (force_arch_perfmon && cpu_has_arch_perfmon)
635 return 0; 635 return 0;
636 636
637 /*
638 * Documentation on identifying Intel processors by CPU family
639 * and model can be found in the Intel Software Developer's
640 * Manuals (SDM):
641 *
642 * http://www.intel.com/products/processor/manuals/
643 *
644 * As of May 2010 the documentation for this was in the:
645 * "Intel 64 and IA-32 Architectures Software Developer's
646 * Manual Volume 3B: System Programming Guide", "Table B-1
647 * CPUID Signature Values of DisplayFamily_DisplayModel".
648 */
637 switch (cpu_model) { 649 switch (cpu_model) {
638 case 0 ... 2: 650 case 0 ... 2:
639 *cpu_type = "i386/ppro"; 651 *cpu_type = "i386/ppro";
@@ -655,12 +667,12 @@ static int __init ppro_init(char **cpu_type)
655 case 15: case 23: 667 case 15: case 23:
656 *cpu_type = "i386/core_2"; 668 *cpu_type = "i386/core_2";
657 break; 669 break;
670 case 0x1a:
658 case 0x2e: 671 case 0x2e:
659 case 26:
660 spec = &op_arch_perfmon_spec; 672 spec = &op_arch_perfmon_spec;
661 *cpu_type = "i386/core_i7"; 673 *cpu_type = "i386/core_i7";
662 break; 674 break;
663 case 28: 675 case 0x1c:
664 *cpu_type = "i386/atom"; 676 *cpu_type = "i386/atom";
665 break; 677 break;
666 default: 678 default: