On Wed, Sep 01, 2021 at 08:31:05PM +0530, Bhaskara Budiredla wrote: > Add device tree bindings for Last-level-cache Tag-and-data > (LLC-TAD) unit PMU for Marvell CN10K SoCs. > > Signed-off-by: Bhaskara Budiredla <bbudiredla@xxxxxxxxxxx> > --- > .../bindings/perf/marvell-cn10k-tad.yaml | 60 +++++++++++++++++++ marvell,cn10k-tad-pmu.yaml > 1 file changed, 60 insertions(+) > create mode 100644 Documentation/devicetree/bindings/perf/marvell-cn10k-tad.yaml > > diff --git a/Documentation/devicetree/bindings/perf/marvell-cn10k-tad.yaml b/Documentation/devicetree/bindings/perf/marvell-cn10k-tad.yaml > new file mode 100644 > index 000000000000..18e9499f2df8 > --- /dev/null > +++ b/Documentation/devicetree/bindings/perf/marvell-cn10k-tad.yaml > @@ -0,0 +1,60 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/perf/marvell-cn10k-tad.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Marvell CN10K LLC-TAD performance monitor > + > +maintainers: > + - Bhaskara Budiredla <bbudiredla@xxxxxxxxxxx> > + > +description: | > + The Tag-and-Data units (TADs) maintain coherence and contain CN10K > + shared on-chip last level cache (LLC). The tad pmu measures the > + performance of last-level cache. Each tad pmu supports up to eight > + counters. > + > + The DT setup comprises of number of tad blocks, the sizes of pmu > + regions, tad blocks and overall base address of the HW. > + > +properties: > + compatible: > + const: marvell,cn10k-tad-pmu > + > + tad-cnt: > + maxItems: 1 > + > + tad-page-size: > + maxItems: 1 > + > + tad-pmu-page-size: > + maxItems: 1 These all need vendor prefix, a type, description, and any constraints. > + > + reg: > + maxItems: 1 > + > +required: > + - compatible > + - tad-cnt > + - tad-page-size > + - tad-pmu-page-size > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + > + tad { > + #address-cells = <2>; > + #size-cells = <2>; > + > + tad_pmu@80000000 { pmu@... > + compatible = "marvell,cn10k-tad-pmu"; > + tad-cnt = <1>; > + tad-page-size = <0x1000>; > + tad-pmu-page-size = <0x1000>; > + reg = <0x87e2 0x80000000 0x0 0x1000>; > + }; > + }; > -- > 2.17.1 > >
