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Fri, 13 Nov 2026 06:35:59 -0800 (PST) Received: from [10.218.30.203] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-5ee34d4ed43sm1387544e0c.2.2026.11.13.06.35.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 13 Nov 2026 06:35:59 -0800 (PST) Message-ID: <315d7bf0-352e-4dd5-9779-89e8ea75427d@oss.qualcomm.com> Date: Fri, 13 Nov 2026 20:05:51 +0530 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 0/3] arm64: dts: qcom: shikra: Add EL2 overlay for EVK variants To: Bjorn Andersson , Konrad Dybcio , Abel Vesa , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mathieu Poirier , Manivannan Sadhasivam , Bartosz Golaszewski , Kumar Patro Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-remoteproc@vger.kernel.org, Abel Vesa , Dmitry Baryshkov References: <20261104-shikra-el2-v4-0-97e7019debff@oss.qualcomm.com> Content-Language: en-US From: Komal Bajaj In-Reply-To: <20261104-shikra-el2-v4-0-97e7019debff@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=c6Q+0h9l c=1 sm=1 tr=0 ts=6af72051 cx=c_pps a=JIY1xp/sjQ9K5JH4t62bdg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=yyvnBEBB80qBeyI6t6IA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=tNoRWFLymzeba-QzToBc:22 X-Proofpoint-GUID: tboeBM19oItsCOkg2b3rEv_aXZF0zUaC X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTEzMDA1OCBTYWx0ZWRfX1enRuKEer5DM tUXBO+svWwmS28s2uKZ5rD9CVc/Adk5t6cdAJ4YrO+p28QICSDw6qZZKuDkZLrw6pRGq3Dkx6tp a5KY0wNL1nvzWSGcJd+v6iBFiH502VIpWGCQFu2vC/hnJZN5HUMoGaaTVJyOmJ6ch0orZa24pEA Uh6D/XncK6Rw6p5e8Yh8hSJRyrrS5Oy1M1uQyMv0tOVJy2Y5vxSxcAn0iUn7GhrqRBhZ2XQWxEs 4EBgv04B5y/5qa+vY1FEwnV8I/B+IH+UTIbwTtBv8+wy+6x1Es5xtaoEpwp5kweAKUgP2vBSh5R fnr5yeom/qUJs103FR2yulGR/aBqlo8IJ4jk6z/tZxa4V/7yL7tG5MQgt/iXen3W7W8hdiUrrTN sYdoKP/7lBf5wLd/D7HOQbrUjAmWB9ws9khMS4rXxvB+xI2rYvUogUzGg6bESqUNi+1djtZ4js0 8DH1atD+LYJ/EBStf+w== X-Proofpoint-ORIG-GUID: tboeBM19oItsCOkg2b3rEv_aXZF0zUaC X-Proofpoint-Spam-Info: AW1haW4tMjYxMTEzMDA1OCBTYWx0ZWRfX8dQ4/g6QsEXB n9w8n7PtemdiTxle6pQlpFJ5QgJSdsJhOjkop1JO5pFWp+QkNl/LjFAijTurc2ZdYiGYC6LlI7P 72qdcpvErBf6sBwp2ULBpR6V8nStpSU= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-13_04,2026-11-11_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 phishscore=0 impostorscore=0 malwarescore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2611040001 definitions=main-2611130058 On 11/4/2026 7:33 PM, Komal Bajaj wrote: > 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 I  have addressed these comments in v5, which is available here: https://lore.kernel.org/all/20261113-shikra-el2-v5-0-8aca743de97f@oss.qualcomm.com/ Thanks Komal > --- > 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,