| 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/arm,smmu-v3-pmcg.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Arm SMMUv3 Performance Monitor Counter Group |
| 8 | |
| 9 | maintainers: |
| 10 | - Will Deacon <will@kernel.org> |
| 11 | - Robin Murphy <robin.murphy@arm.com> |
| 12 | |
| 13 | description: | |
| 14 | An SMMUv3 may have several Performance Monitor Counter Group (PMCG). |
| 15 | They are standalone performance monitoring units that support both |
| 16 | architected and IMPLEMENTATION DEFINED event counters. |
| 17 | |
| 18 | properties: |
| 19 | $nodename: |
| 20 | pattern: "^pmu@[0-9a-f]*" |
| 21 | compatible: |
| 22 | oneOf: |
| 23 | - items: |
| 24 | - const: arm,mmu-600-pmcg |
| 25 | - const: arm,smmu-v3-pmcg |
| 26 | - const: arm,smmu-v3-pmcg |
| 27 | |
| 28 | reg: |
| 29 | items: |
| 30 | - description: Register page 0 |
| 31 | - description: Register page 1, if SMMU_PMCG_CFGR.RELOC_CTRS = 1 |
| 32 | minItems: 1 |
| 33 | |
| 34 | interrupts: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | msi-parent: true |
| 38 | |
| 39 | required: |
| 40 | - compatible |
| 41 | - reg |
| 42 | |
| 43 | anyOf: |
| 44 | - required: |
| 45 | - interrupts |
| 46 | - required: |
| 47 | - msi-parent |
| 48 | |
| 49 | additionalProperties: false |
| 50 | |
| 51 | examples: |
| 52 | - | |
| 53 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 54 | #include <dt-bindings/interrupt-controller/irq.h> |
| 55 | |
| 56 | pmu@2b420000 { |
| 57 | compatible = "arm,smmu-v3-pmcg"; |
| 58 | reg = <0x2b420000 0x1000>, |
| 59 | <0x2b430000 0x1000>; |
| 60 | interrupts = <GIC_SPI 80 IRQ_TYPE_EDGE_RISING>; |
| 61 | msi-parent = <&its 0xff0000>; |
| 62 | }; |
| 63 | |
| 64 | pmu@2b440000 { |
| 65 | compatible = "arm,smmu-v3-pmcg"; |
| 66 | reg = <0x2b440000 0x1000>, |
| 67 | <0x2b450000 0x1000>; |
| 68 | interrupts = <GIC_SPI 81 IRQ_TYPE_EDGE_RISING>; |
| 69 | msi-parent = <&its 0xff0000>; |
| 70 | }; |