[PATCH v6 00/12] perf: arm_spe: Armv8.8 SPE features

Arnaldo Carvalho de Melo acme at kernel.org
Wed Sep 17 10:24:29 PDT 2025


On Fri, Aug 08, 2025 at 01:39:13PM +0100, Leo Yan wrote:
> On Fri, Aug 08, 2025 at 12:22:57PM +0100, James Clark wrote:
> > Support 3 new SPE features: FEAT_SPEv1p4 filters, FEAT_SPE_EFT extended
> > filtering, and SPE_FEAT_FDS data source filtering. The features are
> > independent can be applied separately:
> > 
> >   * Prerequisite sysreg changes - patch 1
> >   * FEAT_SPEv1p4 - patches 2 - 3
> >   * FEAT_SPE_EFT - patch 4
> >   * FEAT_SPE_FDS - patches 5 - 9
> >   * FEAT_SPE_FDS Perf tool changes - patches 10 - 12
> > 
> > The first two features will work with old Perfs but a Perf change to
> > parse the new config4 is required for the last feature.
> 
> I tested FEAT_SPE_EFT (xxx_filter_mask), inv_data_src_filter
> and inv_event_filter, all of them work as expected.
> 
> Tested-by: Leo Yan <leo.yan at arm.com>

Please let me know when I can merge the tools/perf bits.

- Arnaldo



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