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From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 5/5] dt-bindings: Document devicetree binding for ARM SPE
Date: Thu, 18 May 2017 18:24:33 +0100	[thread overview]
Message-ID: <1495128273-13941-6-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1495128273-13941-1-git-send-email-will.deacon@arm.com>

This patch documents the devicetree binding in use for ARM SPE.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 Documentation/devicetree/bindings/arm/spe-pmu.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/spe-pmu.txt

diff --git a/Documentation/devicetree/bindings/arm/spe-pmu.txt b/Documentation/devicetree/bindings/arm/spe-pmu.txt
new file mode 100644
index 000000000000..93372f2a7df9
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/spe-pmu.txt
@@ -0,0 +1,20 @@
+* ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU)
+
+ARMv8.2 introduces the optional Statistical Profiling Extension for collecting
+performance sample data using an in-memory trace buffer.
+
+** SPE Required properties:
+
+- compatible : should be one of:
+	       "arm,statistical-profiling-extension-v1"
+
+- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where
+               SPE is only supported on a subset of the CPUs, please consult
+	       the arm,gic-v3 binding for details on describing a PPI partition.
+
+** Example:
+
+spe-pmu {
+        compatible = "arm,statistical-profiling-extension-v1";
+        interrupts = <GIC_PPI 05 IRQ_TYPE_LEVEL_HIGH &part1>;
+};
-- 
2.1.4

      parent reply	other threads:[~2017-05-18 17:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-18 17:24 [PATCH v3 0/5] Add support for the ARMv8.2 Statistical Profiling Extension Will Deacon
2017-05-18 17:24 ` [PATCH v3 1/5] genirq: export irq_get_percpu_devid_partition to modules Will Deacon
2017-05-18 17:24 ` [PATCH v3 2/5] perf/core: Export AUX buffer helpers " Will Deacon
2017-05-18 17:24 ` [PATCH v3 3/5] perf/core: Add PERF_AUX_FLAG_COLLISION to report colliding samples Will Deacon
2017-05-18 17:24 ` [PATCH v3 4/5] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Will Deacon
2017-05-21 20:36   ` Thomas Gleixner
2017-05-22 11:05     ` Will Deacon
2017-05-22 12:32   ` Kim Phillips
2017-05-22 12:44     ` Mark Rutland
2017-05-22 15:45       ` Kim Phillips
2017-05-22 16:22         ` Mark Rutland
2017-05-22 23:24           ` Kim Phillips
2017-05-18 17:24 ` Will Deacon [this message]

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