Messages in this thread | | | From | kan.liang@linux ... | Subject | [PATCH RESEND 0/5] Fix UPI uncore issue on SPR | Date | Thu, 12 Jan 2023 12:01:00 -0800 |
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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
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