kernel-fxtec-pro1x/arch
Daniel Qarras f1c6a58121 perf_counter, x86: Extend perf_counter Pentium M support
I've attached a patch to remove the Pentium M special casing of
EMON and as noticed at least with my Pentium M the hardware PMU
now works:

 Performance counter stats for '/bin/ls /var/tmp':

       1.809988  task-clock-msecs         #      0.125 CPUs
              1  context-switches         #      0.001 M/sec
              0  CPU-migrations           #	 0.000 M/sec
            224  page-faults              #	 0.124 M/sec
        1425648  cycles                   #    787.656 M/sec
         912755  instructions             #	 0.640 IPC

Vince suggested that this code was trying to address erratum
Y17 in Pentium-M's:

  http://download.intel.com/support/processors/mobile/pm/sb/25266532.pdf

But that erratum (related to IA32_MISC_ENABLES.7) does not
affect perfcounters as we dont use this toggle to disable RDPMC
and WRMSR/RDMSR access to performance counters. We keep cr4's
bit 8 (X86_CR4_PCE) clear so unprivileged RDPMC access is not
allowed anyway.

Cc: Vince Weaver <vince@deater.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@googlemail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-13 08:46:51 +02:00
..
alpha alpha: fix percpu build breakage 2009-06-30 18:55:59 -07:00
arm [ARM] 5562/2: at91: add gpio button support for at91sam9g20ek 2009-06-29 11:19:27 +01:00
avr32 Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
blackfin Blackfin: fix dma-mapping build errors 2009-06-22 22:31:00 -04:00
cris Merge branch 'for-linus' of git://www.jni.nu/cris 2009-06-23 10:47:01 -07:00
frv FRV: Wire up new syscalls 2009-06-30 18:58:37 -07:00
h8300 h8/300: fix incorrect "select" directives in arch/h8300/Kconfig.cpu. 2009-06-23 12:50:05 -07:00
ia64 [IA64] address compiler warnings perfmon.c/salinfo.c 2009-06-30 14:26:34 -07:00
m32r Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
m68k Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
m68knommu ptrace: remove PT_DTRACE from m68k, m68knommu 2009-06-18 13:03:48 -07:00
microblaze Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
mips MIPS: Cavium: Add CPU hotplugging code. 2009-06-24 18:34:40 +01:00
mn10300 MN10300: Wire up new syscalls 2009-06-30 18:58:37 -07:00
parisc Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
powerpc powerpc/perf_counter: Enable alternate PR/HV bits for POWER7 2009-07-01 10:20:28 +02:00
s390 KVM: s390: Allow stfle instruction in the guest 2009-06-28 14:10:30 +03:00
sh sh: Fix up HAVE_PERF_COUNTERS typo. 2009-06-24 01:41:05 +09:00
sparc sparc32: Fix makefile not generating required files 2009-06-25 19:56:02 -07:00
um UML: Fix some apparent bitrot 2009-06-25 11:22:13 -07:00
x86 perf_counter, x86: Extend perf_counter Pentium M support 2009-07-13 08:46:51 +02:00
xtensa xtensa: enable m41t80 driver in s6105_defconfig 2009-06-22 02:38:11 -07:00
.gitignore
Kconfig gcov: add gcov profiling infrastructure 2009-06-18 13:03:57 -07:00