Re: [PATCH v1 3/3] perf arm-spe: Support data source for Cortex-X4 CPU

From: Will Deacon
Date: Fri Jul 28 2023 - 10:22:39 EST


On Mon, Jul 24, 2023 at 07:05:09PM +0800, Leo Yan wrote:
> On Mon, Jul 24, 2023 at 12:27:31PM +0530, Anshuman Khandual wrote:
>
> [...]
>
> > > -static const struct midr_range neoverse_spe[] = {
> > > +static const struct midr_range cpus_use_default_data_src[] = {
> >
> > Is not 'cpus_use_default_data_src' too long ? 'use' could be dropped ?
>
> Okay, I can drop 'use'.
>
> > > MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
> > > MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
> > > MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
> > > + MIDR_ALL_VERSIONS(MIDR_CORTEX_X4),
> > > {},
> > > };
>
> [...]
>
> > > static u64 arm_spe__synth_data_source(const struct arm_spe_record *record, u64 midr)
> > > {
> > > union perf_mem_data_src data_src = { .mem_op = PERF_MEM_OP_NA };
> > > - bool is_neoverse = is_midr_in_range_list(midr, neoverse_spe);
> > > + bool is_default_dc =
> >
> > _dc stands for ?
>
> Thanks for pointing out this; actually I mean '_ds' which stands for
> data source. Will spin a new patch for this.

Thanks. Please can you put patch 2 (the one touching tools) at the end of
the series, too? That way I can easily pick up the kernel changes.

Will