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| author | Stephane Eranian <eranian@google.com> | 2021-10-13 17:12:14 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-10-30 16:37:24 +0200 |
| commit | 2de71ee153efa93099d2ab864acffeec70a8dcd5 (patch) | |
| tree | 40efe6fa4d55ebdc191005404a3a4f7d5de726d1 /scripts/modules-check.sh | |
| parent | 26da4abfb38201c3cbe127daeded76d4c2bc9077 (diff) | |
| download | linux-2de71ee153efa93099d2ab864acffeec70a8dcd5.tar.bz2 | |
perf/x86/intel: Fix ICL/SPR INST_RETIRED.PREC_DIST encodings
This patch fixes the encoding for INST_RETIRED.PREC_DIST as published by Intel
(download.01.org/perfmon/) for Icelake. The official encoding
is event code 0x00 umask 0x1, a change from Skylake where it was code 0xc0
umask 0x1.
With this patch applied it is possible to run:
$ perf record -a -e cpu/event=0x00,umask=0x1/pp .....
Whereas before this would fail.
To avoid problems with tools which may use the old code, we maintain the old
encoding for Icelake.
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211014001214.2680534-1-eranian@google.com
Diffstat (limited to 'scripts/modules-check.sh')
0 files changed, 0 insertions, 0 deletions