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(parent: 06c2afb) | patch
perf/amd: Prevent grouping of IBS events
authorRavi Bangoria <ravi.bangoria@amd.com>
Tue, 20 Jun 2023 09:16:03 +0000 (14:46 +0530)
committerPeter Zijlstra <peterz@infradead.org>
Mon, 10 Jul 2023 07:52:34 +0000 (09:52 +0200)
commit7c2128235eff99b448af8f4b5b2933495bf1a440
treef7f04f22933d60272bac4952840dc6e387e9d5b2tree | snapshot
parent06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5commit | diff
perf/amd: Prevent grouping of IBS events

IBS PMUs can have only one event active at any point in time. Restrict
grouping of multiple IBS events.

Reported-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230620091603.269-1-ravi.bangoria@amd.com
arch/x86/events/amd/ibs.c diff | blob | history
Domain: System / Kernel;