This is a note to let you know that I've just added the patch titled perf/x86/intel/uncore: Fix M2M event umask for Ice Lake server 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-m2m-event-umask-for-ice-lake-server.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 848ff3768684701a4ce73a2ec0e5d438d4e2b0da Mon Sep 17 00:00:00 2001 From: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> Date: Tue, 1 Jun 2021 06:09:03 -0700 Subject: perf/x86/intel/uncore: Fix M2M event umask for Ice Lake server From: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> commit 848ff3768684701a4ce73a2ec0e5d438d4e2b0da upstream. Perf tool errors out with the latest event list for the Ice Lake server. event syntax error: 'unc_m2m_imc_reads.to_pmm' \___ value too big for format, maximum is 255 The same as the Snow Ridge server, the M2M uncore unit in the Ice Lake server has the unit mask extension field as well. Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support") Reported-by: Jin Yao <yao.jin@xxxxxxxxxxxxxxx> 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/1622552943-119174-1-git-send-email-kan.liang@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/events/intel/uncore_snbep.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -5067,9 +5067,10 @@ static struct intel_uncore_type icx_unco .perf_ctr = SNR_M2M_PCI_PMON_CTR0, .event_ctl = SNR_M2M_PCI_PMON_CTL0, .event_mask = SNBEP_PMON_RAW_EVENT_MASK, + .event_mask_ext = SNR_M2M_PCI_PMON_UMASK_EXT, .box_ctl = SNR_M2M_PCI_PMON_BOX_CTL, .ops = &snr_m2m_uncore_pci_ops, - .format_group = &skx_uncore_format_group, + .format_group = &snr_m2m_uncore_format_group, }; static struct attribute *icx_upi_uncore_formats_attr[] = { Patches currently in stable-queue which might be from kan.liang@xxxxxxxxxxxxxxx are queue-5.10/perf-x86-intel-uncore-fix-m2m-event-umask-for-ice-lake-server.patch