| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/perf/marvell-cn10k-tad.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Marvell CN10K LLC-TAD performance monitor |
| 8 | |
| 9 | maintainers: |
| 10 | - Bhaskara Budiredla <bbudiredla@marvell.com> |
| 11 | |
| 12 | description: | |
| 13 | The Tag-and-Data units (TADs) maintain coherence and contain CN10K |
| 14 | shared on-chip last level cache (LLC). The tad pmu measures the |
| 15 | performance of last-level cache. Each tad pmu supports up to eight |
| 16 | counters. |
| 17 | |
| 18 | The DT setup comprises of number of tad blocks, the sizes of pmu |
| 19 | regions, tad blocks and overall base address of the HW. |
| 20 | |
| 21 | properties: |
| 22 | compatible: |
| 23 | const: marvell,cn10k-tad-pmu |
| 24 | |
| 25 | reg: |
| 26 | maxItems: 1 |
| 27 | |
| 28 | marvell,tad-cnt: |
| 29 | description: specifies the number of tads on the soc |
| 30 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 31 | |
| 32 | marvell,tad-page-size: |
| 33 | description: specifies the size of each tad page |
| 34 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 35 | |
| 36 | marvell,tad-pmu-page-size: |
| 37 | description: specifies the size of page that the pmu uses |
| 38 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 39 | |
| 40 | required: |
| 41 | - compatible |
| 42 | - reg |
| 43 | - marvell,tad-cnt |
| 44 | - marvell,tad-page-size |
| 45 | - marvell,tad-pmu-page-size |
| 46 | |
| 47 | additionalProperties: false |
| 48 | |
| 49 | examples: |
| 50 | - | |
| 51 | |
| 52 | tad { |
| 53 | #address-cells = <2>; |
| 54 | #size-cells = <2>; |
| 55 | |
| 56 | tad_pmu@80000000 { |
| 57 | compatible = "marvell,cn10k-tad-pmu"; |
| 58 | reg = <0x87e2 0x80000000 0x0 0x1000>; |
| 59 | marvell,tad-cnt = <1>; |
| 60 | marvell,tad-page-size = <0x1000>; |
| 61 | marvell,tad-pmu-page-size = <0x1000>; |
| 62 | }; |
| 63 | }; |