Kan Liang 32451614da perf/x86/intel: Support CPUID 10.ECX to disable fixed counters ...

With Architectural Performance Monitoring Version 5, CPUID 10.ECX cpu
leaf indicates the fixed counter enumeration. This extends the previous
count to a bitmap which allows disabling even lower fixed counters.
It could be used by a Hypervisor.

The existing intel_ctrl variable is used to remember the bitmask of the
counters. All code that reads all counters is fixed to check this extra
bitmask.

Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Originally-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1611873611-156687-6-git-send-email-kan.liang@linux.intel.com

2021-02-01 15:31:37 +01:00

..

bts.c

perf/x86: Replace zero-length array with flexible-array

2020-05-19 20:34:16 +02:00

core.c

perf/x86/intel: Support CPUID 10.ECX to disable fixed counters

2021-02-01 15:31:37 +01:00

cstate.c

Merge remote-tracking branch 'origin/master' into perf/core

2020-11-26 13:16:55 +01:00

ds.c

perf/x86/intel: Add perf core PMU support for Sapphire Rapids

2021-02-01 15:31:37 +01:00

knc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lbr.c

Perf updates:

2020-12-14 17:34:12 -08:00

Makefile

perf/x86/rapl: Move RAPL support to common x86 code

2020-05-28 07:58:55 +02:00

p4.c

perf_event: Add support for LSM and SELinux checks

2019-10-17 21:31:55 +02:00

p6.c

x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

2018-02-15 01:15:52 +01:00

pt.c

perf/x86/intel/pt: Drop pointless NULL assignment.

2020-04-30 20:14:36 +02:00

pt.h

perf/x86/intel/pt: Prevent redundant WRMSRs

2019-11-13 11:06:18 +01:00

uncore_nhmex.c

perf/x86/intel/uncore: Correct fixed counter index check for NHM

2018-05-31 12:36:28 +02:00

uncore_snb.c

perf/x86/intel/uncore: Store the logical die id instead of the physical die id.

2021-01-14 11:20:13 +01:00

uncore_snbep.c

perf/x86/intel/uncore: With > 8 nodes, get pci bus die id from NUMA info

2021-01-14 11:20:14 +01:00

uncore.c

perf/x86/intel/uncore: Store the logical die id instead of the physical die id.

2021-01-14 11:20:13 +01:00

uncore.h

perf/x86/intel/uncore: Store the logical die id instead of the physical die id.

2021-01-14 11:20:13 +01:00