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| author | Kan Liang <[email protected]> | 2018-08-08 07:12:08 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-10-02 08:14:33 +0000 |
| commit | 7c5314b88da6d5af98239786772a1c44cc5eb67d (patch) | |
| tree | 05d2b10abde07b393ea7be360fbb565efd9fadde /arch/x86/platform/atom/punit_atom_debug.c | |
| parent | x86/cpu: Sanitize FAM6_ATOM naming (diff) | |
| download | kernel-7c5314b88da6d5af98239786772a1c44cc5eb67d.tar.gz kernel-7c5314b88da6d5af98239786772a1c44cc5eb67d.zip | |
perf/x86/intel: Add quirk for Goldmont Plus
A ucode patch is needed for Goldmont Plus while counter freezing feature
is enabled. Otherwise, there will be some issues, e.g. PMI flood with
some events.
Add a quirk to check microcode version. If the system starts with the
wrong ucode, leave the counter-freezing feature permanently disabled.
Signed-off-by: Kan Liang <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'arch/x86/platform/atom/punit_atom_debug.c')
0 files changed, 0 insertions, 0 deletions