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ad8c91282c
When bringing a CPU online, some of the PMC and LBR related registers
are reset. The same is done when a CPU is taken offline although that
is unnecessary. This currently happens in the "cpu_dead" callback which
is also incorrect as the callback runs on a control CPU instead of the
one that is being taken offline. This also affects hibernation and
suspend to RAM on some platforms as reported in the link below.
Fixes:
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.. | ||
amd | ||
intel | ||
zhaoxin | ||
core.c | ||
Kconfig | ||
Makefile | ||
msr.c | ||
perf_event_flags.h | ||
perf_event.h | ||
probe.c | ||
probe.h | ||
rapl.c | ||
utils.c |