perf/x86/intel/uncore: Add missing PMON units for Panther Lake

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Besides CBOX, Panther Lake includes several legacy uncore PMON units
not enumerated via discovery tables, including cNCU, SANTA, and
ia_core_bridge.

The cNCU PMON is similar to Meteor Lake but has two boxes with two
counters each. SANTA and IA Core Bridge PMON units follow the legacy
model used on Lunar Lake, Meteor Lake, and others.

Panther Lake implements the Global Control Register; the freeze_all bit
must be cleared before programming counters.

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/20251231224233.113839-13-zide.chen@intel.com

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Zide Chen 2025-12-31 14:42:29 -08:00 • committed by Peter Zijlstra

parent 2246c24426

commit 46da08a2bb

2 changed files with 46 additions and 0 deletions

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arch/x86/events/intel/uncore.c

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arch/x86/events/intel/uncore_snb.c

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