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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a88b3faff5sm125730035ad.4.2026.02.01.17.46.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 01 Feb 2026 17:46:20 -0800 (PST) Message-ID: <9fa9a90e-7989-49f9-ae99-3a3a0dbcb616@oss.qualcomm.com> Date: Mon, 2 Feb 2026 09:46:14 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: qcom: hamoa: Add remoteproc in EL2 device trees To: Konrad Dybcio , andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com References: <20260130073113.3091884-1-xin.liu@oss.qualcomm.com> <68702c64-7ee9-4571-9fce-0b2d23b3c03d@oss.qualcomm.com> From: Xin Liu In-Reply-To: <68702c64-7ee9-4571-9fce-0b2d23b3c03d@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=LcAxKzfi c=1 sm=1 tr=0 ts=698001ed cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=CK8mY8_xxP8lOHZxmWcA:9 a=QEXdDO2ut3YA:10 a=eSe6kog-UzkA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-ORIG-GUID: 1zXRV_YBaPMqLxW3RJmZ_HgIFyGpTmZg X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAyMDAxMiBTYWx0ZWRfX83aeQxhBm/lV yTzETisT3FTBBwVbHkjsvd73lrwliW0KHFv4XDdPfxsU6vdwykZNzMSqo5tthAqENj4xvXjOMQi GS5Mz69o/aSdu/QzXSOempQoqN+u+2eEJrBsxCZ/RqvEafo6wP8FA/pN+lk4mCibz4HOgjycjFL TWUA0/Y8G6BbWuu05XlK3xK6igXTlt4QAdwoPVIbE4nwSuSLNYPDTPOAauMQ/lDEe7D5NGTfYKY cfotNZLfKeyUkgBkXinDRz/98eq+N4b+yTHWcFxF3hUJiLUAAS+zw/bati7BTqe7CDEeIfnLPT3 TO2GLtJvQ5Z124kI8Crvkh9SuIUUVVL6QdKKQu2i2e2shaSWKqpAqHl+dyKWinfxI/FkkvNX9OJ 971L5zJ6RG/jJ4V1RiXWMIN37CJuV4EjbTQ4KylVigKNT0DzrOLa+IwygQO9NPFKFAn5bOL/6Fr 9uaKjUq0H7OZT2+pKMA== X-Proofpoint-GUID: 1zXRV_YBaPMqLxW3RJmZ_HgIFyGpTmZg X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-01_08,2026-01-30_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 priorityscore=1501 impostorscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 phishscore=0 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602020012 On 1/30/2026 5:24 PM, Konrad Dybcio wrote: > On 1/30/26 8:31 AM, Xin Liu wrote: >> All the existing variants Talos boards are using Gunyah hypervisor >> which means that, so far, Linux-based OS could only boot in EL1 on >> those devices. However, it is possible for us to boot Linux at EL2 >> on these devices [1]. >> >> When running under Gunyah, the remote processor firmware IOMMU streams >> are controlled by Gunyah. However, without Gunyah, the IOMMU is managed >> by the consumer of this DeviceTree. Therefore, describe the firmware >> streams for each remote processor. >> >> Add remoteproc to the EL2 device trees to generate the corresponding >> -el2.dtb files. >> >> [1] >> https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-4/boot-developer-touchpoints.html#uefi >> >> Signed-off-by: Xin Liu >> --- >> arch/arm64/boot/dts/qcom/x1-el2.dtso | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/qcom/x1-el2.dtso b/arch/arm64/boot/dts/qcom/x1-el2.dtso >> index 175679be01eb..8279854fd73c 100644 >> --- a/arch/arm64/boot/dts/qcom/x1-el2.dtso >> +++ b/arch/arm64/boot/dts/qcom/x1-el2.dtso >> @@ -52,6 +52,14 @@ &pcie_smmu { >> status = "okay"; >> }; >> >> +&remoteproc_adsp { >> + iommus = <&apps_smmu 0x1000 0x0>; > The mask should be 0x80 according to docs (although the resulting SID > is the same) Thank you for your reminder, will update later. XIN >> +}; >> + >> +&remoteproc_cdsp { >> + iommus = <&apps_smmu 0x0c00 0x0>; > This looks in line with docs > > Konrad