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Kan Liang 8191016a02 perf/x86/intel/uncore: Fix the scale of the IMC free-running events 
The "MiB" result of the IMC free-running bandwidth events,
uncore_imc_free_running/read/ and uncore_imc_free_running/write/ are 16
times too small.

The "MiB" value equals the raw IMC free-running bandwidth counter value
times a "scale" which is inaccurate.

The IMC free-running bandwidth events should be incremented per 64B
cache line, not DWs (4 bytes). The "scale" should be 6.103515625e-5.
Fix the "scale" for both Snow Ridge and Ice Lake.

Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support")
Fixes: ee49532b38dd ("perf/x86/intel/uncore: Add IMC uncore support for Snow Ridge")
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/20200928133240.12977-1-kan.liang@linux.intel.com
2020-09-29 09:57:02 +02:00
..
bts.c
perf/x86: Replace zero-length array with flexible-array
2020-05-19 20:34:16 +02:00
core.c
perf/x86/intel: Add Jasper Lake support
2020-09-29 09:57:01 +02:00
cstate.c
perf/x86/cstate: Add Jasper Lake CPU support
2020-04-22 21:43:12 +02:00
ds.c
perf/x86/intel/ds: Fix x86_pmu_stop warning for large PEBS
2020-09-10 11:19:33 +02:00
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/x86/intel/lbr: Support XSAVES for arch LBR read
2020-07-08 11:38:57 +02:00
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: Reduce the number of CBOX counters
2020-09-29 09:57:01 +02:00
uncore_snbep.c
perf/x86/intel/uncore: Fix the scale of the IMC free-running events
2020-09-29 09:57:02 +02:00
uncore.c
perf/x86/intel/uncore: Split the Ice Lake and Tiger Lake MSR uncore support
2020-09-29 09:57:00 +02:00
uncore.h
perf/x86/intel/uncore: Split the Ice Lake and Tiger Lake MSR uncore support
2020-09-29 09:57:00 +02:00