Commit a7fd6e58 authored by Kan Liang's avatar Kan Liang Committed by Aichun Shi
Browse files

perf/x86/intel/uncore: Add Sapphire Rapids server UPI support

mainline inclusion
from mainline-v5.15-rc1
commit da5a9156
category: feature
feature: SPR PMU uncore support
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I5BECO



Intel-SIG: commit da5a9156 perf/x86/intel/uncore: Add Sapphire
Rapids server UPI support
This commit is backported for SPR PMU uncore support.

-------------------------------------

Sapphire Rapids uses a coherent interconnect for scaling to multiple
sockets known as Intel UPI. Intel UPI technology provides a cache
coherent socket to socket external communication interface between
processors.

The layout of the control registers for a UPI uncore unit is similar to
a M2M uncore unit.

Signed-off-by: default avatarKan Liang <kan.liang@linux.intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarAndi Kleen <ak@linux.intel.com>
Link: https://lore.kernel.org/r/1625087320-194204-10-git-send-email-kan.liang@linux.intel.com


Signed-off-by: default avatarYunying Sun <yunying.sun@intel.com>
Signed-off-by: default avatarAichun Shi <aichun.shi@intel.com>
parent 567b54eb
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