lkml.org 
[lkml]   [2023]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH RESEND 0/5] Fix UPI uncore issue on SPR
Date
From: Kan Liang <kan.liang@linux.intel.com>

The discovery table of UPI on SPR MCC is broken. The patch series is
to mitigate the issue by providing a hardcode pre-defined table.

The broken discovery table can trigger a kernel warning message, which
is overkilled. The patch series also refine the error handling code.

Kan Liang (5):
perf/x86/uncore: Factor out uncore_device_to_die()
perf/x86/uncore: Fix potential NULL pointer in uncore_get_alias_name
perf/x86/uncore: Ignore broken units in discovery table
perf/x86/uncore: Add a quirk for UPI on SPR
perf/x86/uncore: Don't WARN_ON_ONCE() for a broken discovery table

arch/x86/events/intel/uncore.c | 34 ++++-
arch/x86/events/intel/uncore.h | 4 +
arch/x86/events/intel/uncore_discovery.c | 60 ++++++---
arch/x86/events/intel/uncore_discovery.h | 14 +-
arch/x86/events/intel/uncore_snbep.c | 158 ++++++++++++++++++-----
5 files changed, 210 insertions(+), 60 deletions(-)

--
2.35.1

\
 
 \ /
  Last update: 2023-03-26 23:38    [W:0.122 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site