s390/pai_ext: Enable per-task and system-wide sampling event

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The PMU for PAI NNPA counters enforces the following restriction:

 - No per-task context for PAI sampling event NNPA_ALL
 - No multiple system-wide PAI sampling event NNPA_ALL

Both restrictions are removed. One or more per-task sampling events
are supported. Also one or more system-wide sampling events are
supported.

Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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Thomas Richter 2024-04-15 16:41:23 +02:00 • committed by Alexander Gordeev

parent 3f9ff4c5a0

commit 582cc1b28e

3 changed files with 41 additions and 44 deletions

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8

arch/s390/include/asm/pai.h

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2

arch/s390/kernel/perf_pai_crypto.c

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75

arch/s390/kernel/perf_pai_ext.c

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