perf/x86/intel/uncore: Enable UPI topology discovery for Icelake Server

Browse source

UPI topology discovery relies on data from KTILP0 (offset 0x94) and
KTIPCSTS (offset 0x120) as well as on SKX but on Icelake Server these
registers reside under UBOX (Device ID 0x3450) bus.

This patch enables /sys/devices/uncore_upi_*/die* attributes on Icelake
Server.

Signed-off-by: Alexander Antonov <alexander.antonov@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20221117122833.3103580-9-alexander.antonov@linux.intel.com

...

This commit is contained in:

Alexander Antonov 2022-11-17 12:28:30 +00:00 • committed by Peter Zijlstra

parent c4aebdb3b5

commit f680b6e606

1 changed files with 75 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

75

arch/x86/events/intel/uncore_snbep.c

View file