From: Komal Bajaj <komal.bajaj@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Abel Vesa <abelvesa@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Manivannan Sadhasivam <mani@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Kumar Patro <bibek.patro@oss.qualcomm.com>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-remoteproc@vger.kernel.org,
Komal Bajaj <komal.bajaj@oss.qualcomm.com>,
Abel Vesa <abel.vesa@oss.qualcomm.com>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Subject: [PATCH v4 0/3] arm64: dts: qcom: shikra: Add EL2 overlay for EVK variants
Date: Wed, 04 Nov 2026 19:33:29 +0530 [thread overview]
Message-ID: <20261104-shikra-el2-v4-0-97e7019debff@oss.qualcomm.com> (raw)
All existing Shikra EVK board variants boot Linux under a hypervisor,
which means Linux typically runs at EL1. For EL2 boot without the
hypervisor, remote processor firmware IOMMU streams must be described in
the DeviceTree consumed by Linux.
Add a Shikra EL2-specific DT overlay and wire it up in the Makefile to
produce -el2.dtb artifacts for the Shikra EVK variants alongside the
regular dtbs.
This series also relaxes the Qualcomm PAS remoteproc `iommus` item limit,
needed for Shikra EL2 remoteproc SMMU mappings.
Komal Bajaj (2):
dt-bindings: remoteproc: qcom,shikra-pas: Allow 3 IOMMUs for LPAICP
arm64: dts: qcom: shikra: Add EL2 overlay for remoteproc SMMU mappings
.../bindings/remoteproc/qcom,pas-common.yaml | 3 ++-
arch/arm64/boot/dts/qcom/Makefile | 12 ++++++++++++
arch/arm64/boot/dts/qcom/shikra-el2.dtso | 23 +++++++++++++++++++++++
3 files changed, 37 insertions(+), 1 deletion(-)
Signed-off-by: Komal Bajaj <komal.bajaj@oss.qualcomm.com>
---
Changes in v4:
- Add a patch to move the iommus constraint from qcom,pas-common.yaml to SoC-specific PAS bindings (Mukesh)
- Add iommus constraints for all Shikra PAS compatibles instead of only relaxing the limit for LPAICP
- Add WiFi firmware iommus to Shikra EL2 overlay
- Link to v3: https://lore.kernel.org/r/20261005-shikra-el2-v3-0-618f7343695c@oss.qualcomm.com
Changes in v3:
- Drop qcom,pas-common reference and add per-compatible iommus limits for Shikra (Krzysztof)
- Link to v2: https://lore.kernel.org/r/20260930-shikra-el2-v2-0-f0822be5aaee@oss.qualcomm.com
Changes in v2:
- Relax the Qualcomm PAS remoteproc `iommus` item limit, needed for Shikra EL2 remoteproc SMMU mappings.
- Link to v1: https://lore.kernel.org/r/20260918-shikra-el2-v1-1-07bb072baa31@oss.qualcomm.com
---
Komal Bajaj (3):
dt-bindings: remoteproc: Move iommus constraint to SoC-specific bindings
dt-bindings: remoteproc: qcom,shikra-pas: Add iommus constraints
arm64: dts: qcom: shikra: Add EL2 overlay for remoteproc SMMU mappings
.../bindings/remoteproc/qcom,pas-common.yaml | 3 ---
.../bindings/remoteproc/qcom,sa8775p-pas.yaml | 6 +++++
.../bindings/remoteproc/qcom,shikra-pas.yaml | 5 ++++
.../bindings/remoteproc/qcom,sm8150-pas.yaml | 12 +++++++++
.../bindings/remoteproc/qcom,sm8550-pas.yaml | 12 +++++++++
arch/arm64/boot/dts/qcom/Makefile | 11 ++++++++
arch/arm64/boot/dts/qcom/shikra-el2.dtso | 29 ++++++++++++++++++++++
7 files changed, 75 insertions(+), 3 deletions(-)
---
base-commit: d6bcfc94eb4da6e089c5473970cd96727292fd97
change-id: 20260918-shikra-el2-ea8969385c3c
Best regards,
--
Komal Bajaj <komal.bajaj@oss.qualcomm.com>
next reply other threads:[~2026-11-04 14:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-04 14:03 Komal Bajaj [this message]
2026-11-04 14:03 ` [PATCH v4 1/3] dt-bindings: remoteproc: Move iommus constraint to SoC-specific bindings Komal Bajaj
2026-11-05 13:35 ` Krzysztof Kozlowski
2026-11-04 14:03 ` [PATCH v4 2/3] dt-bindings: remoteproc: qcom,shikra-pas: Add iommus constraints Komal Bajaj
2026-11-05 13:36 ` Krzysztof Kozlowski
2026-11-04 14:03 ` [PATCH v4 3/3] arm64: dts: qcom: shikra: Add EL2 overlay for remoteproc SMMU mappings Komal Bajaj
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