perf/x86/intel/uncore: Add domain global init callback

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In the Intel uncore self-describing mechanism, the Global Control
Register freeze_all bit is SoC-wide and propagates to all uncore PMUs.

On Diamond Rapids, this bit is set at power-on, unlike some prior
platforms.  Add a global_init callback to unfreeze all PMON units.

Signed-off-by: Zide Chen <zide.chen@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://patch.msgid.link/20251231224233.113839-7-zide.chen@intel.com

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Zide Chen 2025-12-31 14:42:23 -08:00 • committed by Peter Zijlstra

parent 66e2075426

commit b575fc0e33

3 changed files with 21 additions and 0 deletions

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16

arch/x86/events/intel/uncore.c

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2

arch/x86/events/intel/uncore.h

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3

arch/x86/events/intel/uncore_discovery.c

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