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Groups > linux.kernel > #1618157
| From | Will Deacon <will.deacon@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 6/6] dt-bindings: Document devicetree binding for ARM SPE |
| Date | 2017-04-06 18:20 +0200 |
| Message-ID | <ttiiD-39H-33@gated-at.bofh.it> (permalink) |
| References | <ttiiC-39H-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
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[PATCH v2 0/6] Add support for the ARMv8.2 Statistical Profiling Extension Will Deacon <will.deacon@arm.com> - 2017-04-06 18:20 +0200
[PATCH v2 5/6] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Will Deacon <will.deacon@arm.com> - 2017-04-06 18:20 +0200
Re: [PATCH v2 5/6] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Kim Phillips <kim.phillips@arm.com> - 2017-04-06 20:40 +0200
Re: [PATCH v2 5/6] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Mark Rutland <mark.rutland@arm.com> - 2017-04-06 20:50 +0200
Re: [PATCH v2 5/6] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Kim Phillips <kim.phillips@arm.com> - 2017-04-07 13:00 +0200
Re: [PATCH v2 5/6] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Mark Rutland <mark.rutland@arm.com> - 2017-04-07 13:40 +0200
Re: [PATCH v2 5/6] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Kim Phillips <kim.phillips@arm.com> - 2017-04-07 17:30 +0200
[PATCH v2 2/6] genirq: export irq_get_percpu_devid_partition to modules Will Deacon <will.deacon@arm.com> - 2017-04-06 18:20 +0200
[PATCH v2 1/6] perf/core: Keep AUX flags in the output handle Will Deacon <will.deacon@arm.com> - 2017-04-06 18:20 +0200
[PATCH v2 4/6] perf/core: Add PERF_AUX_FLAG_COLLISION to report colliding samples Will Deacon <will.deacon@arm.com> - 2017-04-06 18:20 +0200
[PATCH v2 6/6] dt-bindings: Document devicetree binding for ARM SPE Will Deacon <will.deacon@arm.com> - 2017-04-06 18:20 +0200
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