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Message-Id: <7f2576291e51043b33296a2cd9e21263d16ca077.1709694173.git.jialong.yang@shingroup.cn>
Date: Wed, 6 Mar 2024 14:16:02 +0800
From: "JiaLong.Yang" <jialong.yang@...ngroup.cn>
To: Jialong Yang <jialong.yang@...ngroup.cn>,
Will Deacon <will@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: shenghui.qu@...ngroup.cn,
linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/2] dt-bindings: perf: Support uncore NI-700 PMU
Add file corresponding to hx_arm_ni.c introducing ARM NI-700 PMU
driver for HX.
Signed-off-by: JiaLong.Yang <jialong.yang@...ngroup.cn>
---
v1 --> v2:
1. Submit dt-bindings file Seperately.
2. Do some check:
~ #: make dt_binding_check DT_SCHEMA_FILES=perf
LINT Documentation/devicetree/bindings
CHKDT Documentation/devicetree/bindings/processed-schema.json
SCHEMA Documentation/devicetree/bindings/processed-schema.json
DTEX Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.example.dts
DTC_CHK Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.example.dtb
v2 --> v3:
1. Change vendor from hx to hexin.
2. Submit driver and dt-bindings files together.
3. Delete pccs-id property. Use alias-id to do this.
4. There are at least one interrupt line for the hardware and driver
for handling counter overflow.
5. Use 4 spaces for example indentation in yaml file.
.../bindings/perf/hexin,c2000-arm-ni.yaml | 51 +++++++++++++++++++
MAINTAINERS | 6 +++
2 files changed, 57 insertions(+)
create mode 100644 Documentation/devicetree/bindings/perf/hexin,c2000-arm-ni.yaml
diff --git a/Documentation/devicetree/bindings/perf/hexin,c2000-arm-ni.yaml b/Documentation/devicetree/bindings/perf/hexin,c2000-arm-ni.yaml
new file mode 100644
index 000000000000..b2641ee84d60
--- /dev/null
+++ b/Documentation/devicetree/bindings/perf/hexin,c2000-arm-ni.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/perf/hexin,c2000-arm-ni.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HX-C2000 NI (Network-on-chip Interconnect) Performance Monitors
+
+maintainers:
+ - Jialong Yang <jialong.yang@...ngroup.cn>
+
+properties:
+ compatible:
+ enum:
+ - hexin,c2000-arm-ni
+
+ reg:
+ items:
+ - description: Physical address of the base (PERIPHBASE) and
+ size of the whole NI configuration address space.
+
+ interrupts:
+ minItems: 1
+ items:
+ - description: Overflow interrupt for clock domain 0
+ - description: Overflow interrupt for clock domain 1
+ - description: Overflow interrupt for clock domain 2
+ - description: Generally, one interrupt line for one PMU. But this also
+ support one interrupt line for a NI if merged.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ aliases {
+ ni-pmu0 = &nipmu0;
+ };
+
+ nipmu0: pmu@...f0000 {
+ compatible = "hexin,c2000-arm-ni";
+ reg = <0x2b420000 0x10000>;
+ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 4f298c4187fb..4b664cec98a7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18890,6 +18890,12 @@ L: linux-riscv@...ts.infradead.org
S: Maintained
F: arch/riscv/boot/dts/thead/
+HX ARM-NI-700 PMU DRIVERS
+M: Jialong Yang <jialong.yang@...ngroup.cn>
+S: Supported
+F: Documentation/devicetree/bindings/perf/hexin,c2000-arm-ni.yaml
+F: drivers/perf/hx_arm_ni.c
+
RNBD BLOCK DRIVERS
M: Md. Haris Iqbal <haris.iqbal@...os.com>
M: Jack Wang <jinpu.wang@...os.com>
--
2.25.1
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