This is a note to let you know that I've just added the patch titled perf/x86/intel/uncore: Fix Intel ICX IIO event constraints to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: perf-x86-intel-uncore-fix-intel-icx-iio-event-constraints.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From f42e8a603c88f72bf047a710b9fc1d3579f31e71 Mon Sep 17 00:00:00 2001 From: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> Date: Thu, 26 Aug 2021 08:32:39 -0700 Subject: perf/x86/intel/uncore: Fix Intel ICX IIO event constraints From: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> commit f42e8a603c88f72bf047a710b9fc1d3579f31e71 upstream. According to the latest uncore document, both NUM_OUTSTANDING_REQ_OF_CPU (0x88) event and COMP_BUF_OCCUPANCY(0xd5) event also have constraints. Add them into the event constraints table. Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support") Signed-off-by: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Link: https://lkml.kernel.org/r/1629991963-102621-4-git-send-email-kan.liang@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/events/intel/uncore_snbep.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -4898,8 +4898,10 @@ static struct event_constraint icx_uncor UNCORE_EVENT_CONSTRAINT(0x02, 0x3), UNCORE_EVENT_CONSTRAINT(0x03, 0x3), UNCORE_EVENT_CONSTRAINT(0x83, 0x3), + UNCORE_EVENT_CONSTRAINT(0x88, 0xc), UNCORE_EVENT_CONSTRAINT(0xc0, 0xc), UNCORE_EVENT_CONSTRAINT(0xc5, 0xc), + UNCORE_EVENT_CONSTRAINT(0xd5, 0xc), EVENT_CONSTRAINT_END }; Patches currently in stable-queue which might be from kan.liang@xxxxxxxxxxxxxxx are queue-5.10/perf-x86-intel-uncore-fix-intel-icx-iio-event-constraints.patch queue-5.10/perf-x86-intel-uncore-support-extra-imc-channel-on-ice-lake-server.patch