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From: Bhaskara Budiredla <bbudiredla@marvell.com>
To: <will@kernel.org>, <mark.rutland@arm.com>, <robh+dt@kernel.org>,
	<sgoutham@marvell.com>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Bhaskara Budiredla <bbudiredla@marvell.com>
Subject: [PATCH 2/2] dt-bindings: perf: Add YAML schemas for Marvell CN10K LLC-TAD pmu bindings
Date: Thu, 12 Aug 2021 23:12:09 +0530	[thread overview]
Message-ID: <20210812174209.1970-3-bbudiredla@marvell.com> (raw)
In-Reply-To: <20210812174209.1970-1-bbudiredla@marvell.com>

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@marvell.com>
---
 .../bindings/perf/marvell-cn10k-tad.yaml      | 45 +++++++++++++++++++
 1 file changed, 45 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..f66c5c31ecd8
--- /dev/null
+++ b/Documentation/devicetree/bindings/perf/marvell-cn10k-tad.yaml
@@ -0,0 +1,45 @@
+# 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@marvell.com>
+
+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
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - tad-cnt
+  - tad-page-size
+  - tad-pmu-page-size
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    tad_pmu@0x87e280000000 {
+        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


  parent reply	other threads:[~2021-08-12 17:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-12 17:42 [PATCH v3 0/2] drivers: perf: Add Marvell CN10K LLC-TAD pmu driver Bhaskara Budiredla
2021-08-12 17:42 ` [PATCH 1/2] drivers: perf: Add LLC-TAD perf counter support Bhaskara Budiredla
2021-08-14 13:54   ` kajoljain
2021-08-17 10:04     ` [EXT] " Bhaskara Budiredla
2021-08-12 17:42 ` Bhaskara Budiredla [this message]
2021-08-13 12:11   ` [PATCH 2/2] dt-bindings: perf: Add YAML schemas for Marvell CN10K LLC-TAD pmu bindings Rob Herring
2021-08-17  9:11     ` [EXT] " Bhaskara Budiredla
2021-09-07 18:25       ` Rob Herring

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