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Message-Id: <20230112200105.733466-1-kan.liang@linux.intel.com>
Date: Thu, 12 Jan 2023 12:01:00 -0800
From: kan.liang@...ux.intel.com
To: peterz@...radead.org, mingo@...hat.com,
linux-kernel@...r.kernel.org
Cc: steve.wahl@....com, alexander.antonov@...ux.intel.com,
ak@...ux.intel.com, eranian@...gle.com, namhyung@...nel.org,
Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH RESEND 0/5] Fix UPI uncore issue on SPR
From: Kan Liang <kan.liang@...ux.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
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