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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ba1784a9ea7sm39696666b.63.2026.04.15.02.52.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Apr 2026 02:52:19 -0700 (PDT) Message-ID: <70d4dbe7-0e5b-4065-858e-b5a57bbf45e3@oss.qualcomm.com> Date: Wed, 15 Apr 2026 11:52:17 +0200 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 3/4] arm64: dts: qcom: sdm630: describe adsp_mem region properly To: Nickolay Goppen , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ekansh Gupta Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht References: <20260415-qcom-sdm660-cdsp-adsp-fastrpc-dts-fix-v1-0-03b475b29554@mainlining.org> <20260415-qcom-sdm660-cdsp-adsp-fastrpc-dts-fix-v1-3-03b475b29554@mainlining.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260415-qcom-sdm660-cdsp-adsp-fastrpc-dts-fix-v1-3-03b475b29554@mainlining.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDE1MDA5MCBTYWx0ZWRfX1+v5k7LTQqrb vHJAcvPLArSbOS5NySmJaR4BxqM6opZb/PEtgNy1+vAq7RImkZiUG9QCbaShvcGocL9HiBAx68z ktNodw0MunycYbUamGJ4u3KEsWWzZDR+w/pTEyGCXwIFQPZAE6nE0AcYq/1ksYH+BEzB9Cqy7A1 4U2Bc3VMlLzR7B97fO0z2QKDZ6rS7uRoBtXoBBOLynlHwVy33ZtRl4Qeu/Yu/8oF87cH1RGwR0r yweairik1xV+hN4lgen0D0qLD3k+Bnr04W4luXIcYpz6SffF4o7u4RRxhvN/0FwmWCRLwK+9AjN WQ58yBza/yup3imPNthtbkCHknxdAVu6Ll5YELAos/9D+VgiQ6Df5xeFp8oBRsS6tkSZQJq50fK PHqGrwe6YrCj/ibYuxVeJcoLTzWAC7wd0iNh1TbeH0xDM4TYHOkQ4LfgpqZGSeSRvZl6aClA9Ny pccMhuRs5XD/U9pptdw== X-Proofpoint-ORIG-GUID: UAzSsAx9kOlARiuhmBIgh-MbvUJwA-Ch X-Authority-Analysis: v=2.4 cv=ZIfnX37b c=1 sm=1 tr=0 ts=69df5fd5 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=Gv3PURsRAAAA:20 a=OuZLqq7tAAAA:8 a=O1BvczLALKNwqtZGQfAA:9 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 a=AKGiAy9iJ-JzxKVHQNES:22 a=bA3UWDv6hWIuX7UZL3qL:22 X-Proofpoint-GUID: UAzSsAx9kOlARiuhmBIgh-MbvUJwA-Ch X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-14_04,2026-04-13_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 phishscore=0 clxscore=1015 malwarescore=0 adultscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604070000 definitions=main-2604150090 On 4/15/26 11:40 AM, Nickolay Goppen wrote: > Downstream [1] this region is marked as shared and reusable so > describe it that way. > > [1]: https://github.com/xiaomi-sdm660/android_kernel_xiaomi_sdm660/blob/11-EAS/arch/arm/boot/dts/qcom/sdm660.dtsi#L448 > > Signed-off-by: Nickolay Goppen > --- +Ekansh some insight, please? We're giving away that memory via qcom_scm_assign_mem() anyway and I would assume that making it not-"no-map" could introduce issues when the OS tries to access that region Konrad > arch/arm64/boot/dts/qcom/sdm630.dtsi | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi > index 4b47efdb57b2..13094b5e9339 100644 > --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi > +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi > @@ -495,8 +495,9 @@ venus_region: venus@9f800000 { > }; > > adsp_mem: adsp-region@f6000000 { > + compatible = "shared-dma-pool"; > reg = <0x0 0xf6000000 0x0 0x800000>; > - no-map; > + reusable; > }; > > qseecom_mem: qseecom-region@f6800000 { >