From 70f5e4a6017b8d45a110ebbb4a56799e9a90102f Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 31 Mar 2021 14:16:20 +0100 Subject: KVM: arm64: Elect Alexandru as a replacement for Julien as a reviewer Julien's bandwidth for KVM reviewing has been pretty low lately, and Alexandru has accepted to step in and help with the reviewing. Many thanks to both! Cc: Julien Thierry Cc: Alexandru Elisei Signed-off-by: Marc Zyngier Acked-by: Alexandru Elisei Link: https://lore.kernel.org/r/20210331131620.4005931-1-maz@kernel.org --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'MAINTAINERS') diff --git a/MAINTAINERS b/MAINTAINERS index aa84121c5611..803bd0551512 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9765,7 +9765,7 @@ F: virt/kvm/* KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64) M: Marc Zyngier R: James Morse -R: Julien Thierry +R: Alexandru Elisei R: Suzuki K Poulose L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) L: kvmarm@lists.cs.columbia.edu -- cgit v1.2.3 From e7cc4f2303b0ce1ecb9d8d381a1763bfea15fea9 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Mon, 5 Apr 2021 17:43:01 +0100 Subject: dts: bindings: Document device tree bindings for ETE Document the device tree bindings for Embedded Trace Extensions. ETE can be connected to legacy coresight components and thus could optionally contain a connection graph as described by the CoreSight bindings. Cc: devicetree@vger.kernel.org Cc: Mathieu Poirier Cc: Mike Leach Reviewed-by: Rob Herring Signed-off-by: Suzuki K Poulose Link: https://lore.kernel.org/r/20210405164307.1720226-15-suzuki.poulose@arm.com Signed-off-by: Mathieu Poirier --- Documentation/devicetree/bindings/arm/ete.yaml | 75 ++++++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/ete.yaml (limited to 'MAINTAINERS') diff --git a/Documentation/devicetree/bindings/arm/ete.yaml b/Documentation/devicetree/bindings/arm/ete.yaml new file mode 100644 index 000000000000..7f9b2d1e1147 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/ete.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +# Copyright 2021, Arm Ltd +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/arm/ete.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: ARM Embedded Trace Extensions + +maintainers: + - Suzuki K Poulose + - Mathieu Poirier + +description: | + Arm Embedded Trace Extension(ETE) is a per CPU trace component that + allows tracing the CPU execution. It overlaps with the CoreSight ETMv4 + architecture and has extended support for future architecture changes. + The trace generated by the ETE could be stored via legacy CoreSight + components (e.g, TMC-ETR) or other means (e.g, using a per CPU buffer + Arm Trace Buffer Extension (TRBE)). Since the ETE can be connected to + legacy CoreSight components, a node must be listed per instance, along + with any optional connection graph as per the coresight bindings. + See bindings/arm/coresight.txt. + +properties: + $nodename: + pattern: "^ete([0-9a-f]+)$" + compatible: + items: + - const: arm,embedded-trace-extension + + cpu: + description: | + Handle to the cpu this ETE is bound to. + $ref: /schemas/types.yaml#/definitions/phandle + + out-ports: + description: | + Output connections from the ETE to legacy CoreSight trace bus. + $ref: /schemas/graph.yaml#/properties/ports + properties: + port: + description: Output connection from the ETE to legacy CoreSight Trace bus. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - cpu + +additionalProperties: false + +examples: + +# An ETE node without legacy CoreSight connections + - | + ete0 { + compatible = "arm,embedded-trace-extension"; + cpu = <&cpu_0>; + }; +# An ETE node with legacy CoreSight connections + - | + ete1 { + compatible = "arm,embedded-trace-extension"; + cpu = <&cpu_1>; + + out-ports { /* legacy coresight connection */ + port { + ete1_out_port: endpoint { + remote-endpoint = <&funnel_in_port0>; + }; + }; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index aa84121c5611..2a20a36c724a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1761,6 +1761,7 @@ F: Documentation/ABI/testing/sysfs-bus-coresight-devices-* F: Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt F: Documentation/devicetree/bindings/arm/coresight-cti.yaml F: Documentation/devicetree/bindings/arm/coresight.txt +F: Documentation/devicetree/bindings/arm/ete.yaml F: Documentation/trace/coresight/* F: drivers/hwtracing/coresight/* F: include/dt-bindings/arm/coresight-cti-dt.h -- cgit v1.2.3 From 4fb13790417a7bf726f3867a5d2b9723efde488b Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Mon, 5 Apr 2021 17:43:07 +0100 Subject: dts: bindings: Document device tree bindings for Arm TRBE Document the device tree bindings for Trace Buffer Extension (TRBE). Cc: Anshuman Khandual Cc: Mathieu Poirier Cc: Rob Herring Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring Signed-off-by: Suzuki K Poulose Link: https://lore.kernel.org/r/20210405164307.1720226-21-suzuki.poulose@arm.com Signed-off-by: Mathieu Poirier --- Documentation/devicetree/bindings/arm/trbe.yaml | 49 +++++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/trbe.yaml (limited to 'MAINTAINERS') diff --git a/Documentation/devicetree/bindings/arm/trbe.yaml b/Documentation/devicetree/bindings/arm/trbe.yaml new file mode 100644 index 000000000000..4402d7bfd1fc --- /dev/null +++ b/Documentation/devicetree/bindings/arm/trbe.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +# Copyright 2021, Arm Ltd +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/arm/trbe.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: ARM Trace Buffer Extensions + +maintainers: + - Anshuman Khandual + +description: | + Arm Trace Buffer Extension (TRBE) is a per CPU component + for storing trace generated on the CPU to memory. It is + accessed via CPU system registers. The software can verify + if it is permitted to use the component by checking the + TRBIDR register. + +properties: + $nodename: + const: "trbe" + compatible: + items: + - const: arm,trace-buffer-extension + + interrupts: + description: | + Exactly 1 PPI must be listed. For heterogeneous systems where + TRBE is only supported on a subset of the CPUs, please consult + the arm,gic-v3 binding for details on describing a PPI partition. + maxItems: 1 + +required: + - compatible + - interrupts + +additionalProperties: false + +examples: + + - | + #include + + trbe { + compatible = "arm,trace-buffer-extension"; + interrupts = ; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 2a20a36c724a..471d04bb2d5e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1762,6 +1762,7 @@ F: Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt F: Documentation/devicetree/bindings/arm/coresight-cti.yaml F: Documentation/devicetree/bindings/arm/coresight.txt F: Documentation/devicetree/bindings/arm/ete.yaml +F: Documentation/devicetree/bindings/arm/trbe.yaml F: Documentation/trace/coresight/* F: drivers/hwtracing/coresight/* F: include/dt-bindings/arm/coresight-cti-dt.h -- cgit v1.2.3 From 1a219e08ecd76a047b231f6e860c0a7d4dfb49b7 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 6 Apr 2021 14:10:33 +0100 Subject: KVM: arm64: Mark the kvmarm ML as moderated for non-subscribers The kvmarm mailing list is moderated for non-subscriber, but that was never advertised. Fix this with the hope that people will eventually subscribe before posting, saving me the hassle of letting their post through eventually. Signed-off-by: Marc Zyngier --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'MAINTAINERS') diff --git a/MAINTAINERS b/MAINTAINERS index 803bd0551512..54b4f2bcfe19 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9768,7 +9768,7 @@ R: James Morse R: Alexandru Elisei R: Suzuki K Poulose L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) -L: kvmarm@lists.cs.columbia.edu +L: kvmarm@lists.cs.columbia.edu (moderated for non-subscribers) S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git F: arch/arm64/include/asm/kvm* -- cgit v1.2.3