Messages in this thread Patch in this message | | | Date | Tue, 24 Aug 2010 15:42:29 -0700 | From | Greg KH <> | Subject | [67/91] oprofile: add support for Intel processor model 30 |
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2.6.34-stable review patch. If anyone has any objections, please let us know.
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From: Josh Hunt <johunt@akamai.com>
commit a7c55cbee0c1bae9bf5a15a08300e91d88706e45 upstream.
Newer Intel processors identifying themselves as model 30 are not recognized by oprofile.
<cpuinfo snippet> model : 30 model name : Intel(R) Xeon(R) CPU X3470 @ 2.93GHz </cpuinfo snippet>
Running oprofile on these machines gives the following: + opcontrol --init + opcontrol --list-events oprofile: available events for CPU type "Intel Architectural Perfmon"
See Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3B (Document 253669) Chapter 18 for architectural perfmon events This is a limited set of fallback events because oprofile doesn't know your CPU CPU_CLK_UNHALTED: (counter: all) Clock cycles when not halted (min count: 6000) INST_RETIRED: (counter: all) number of instructions retired (min count: 6000) LLC_MISSES: (counter: all) Last level cache demand requests from this core that missed the LLC (min count: 6000) Unit masks (default 0x41) ---------- 0x41: No unit mask LLC_REFS: (counter: all) Last level cache demand requests from this core (min count: 6000) Unit masks (default 0x4f) ---------- 0x4f: No unit mask BR_MISS_PRED_RETIRED: (counter: all) number of mispredicted branches retired (precise) (min count: 500) + opcontrol --shutdown
Tested using oprofile 0.9.6.
Signed-off-by: Josh Hunt <johunt@akamai.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- arch/x86/oprofile/nmi_int.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -618,6 +618,7 @@ static int __init ppro_init(char **cpu_t *cpu_type = "i386/core_2"; break; case 0x1a: + case 0x1e: case 0x2e: spec = &op_arch_perfmon_spec; *cpu_type = "i386/core_i7";
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