Tenstorrent device tree for v7.2

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Add a riscv,pmu node to the Tenstorrent Blackhole SoC device tree. This
 enables OpenSBI to expose the SBI PMU extension, allowing Linux perf to
 use the 4 programmable counters (mhpmcounter3-6) across 3 event classes:
 instruction commit, microarchitectural, and memory system events.
 
 Extend the RISC-V IOMMU device tree bindings to document the Tenstorrent
 IOMMU used in the Tenstorrent Atlantis SoC. A second register range is
 added which contains M-mode only registers like PMAs and PMPs. The
 binding will be used by OpenSBI and potentially other M-mode software.
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Merge tag 'tenstorrent-dt-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/tenstorrent/linux into soc/dt

Tenstorrent device tree for v7.2

Add a riscv,pmu node to the Tenstorrent Blackhole SoC device tree. This
enables OpenSBI to expose the SBI PMU extension, allowing Linux perf to
use the 4 programmable counters (mhpmcounter3-6) across 3 event classes:
instruction commit, microarchitectural, and memory system events.

Extend the RISC-V IOMMU device tree bindings to document the Tenstorrent
IOMMU used in the Tenstorrent Atlantis SoC. A second register range is
added which contains M-mode only registers like PMAs and PMPs. The
binding will be used by OpenSBI and potentially other M-mode software.

* tag 'tenstorrent-dt-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/tenstorrent/linux:
  dt-bindings: iommu: riscv: Add bindings for Tenstorrent RISC-V IOMMU
  riscv: dts: tenstorrent: Add PMU node to blackhole for Linux perf support

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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This commit is contained in:

Krzysztof Kozlowski 2026-06-09 13:46:11 +02:00

parent 91ee0f80cf 33583baeb1

commit 6b2b89b1bc

2 changed files with 99 additions and 8 deletions

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59

Documentation/devicetree/bindings/iommu/riscv,iommu.yaml

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48

arch/riscv/boot/dts/tenstorrent/blackhole.dtsi

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