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Wed, 24 Jun 2026 06:28:07 -0700 (PDT) X-Received: by 2002:a05:620a:3185:b0:915:8197:4490 with SMTP id af79cd13be357-925c95b2466mr942759185a.4.1782307687275; Wed, 24 Jun 2026 06:28:07 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c0c60ac7c1bsm661168166b.33.2026.06.24.06.28.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Jun 2026 06:28:06 -0700 (PDT) Message-ID: <53cade89-1fc4-4ba7-aa7b-815b9e26d88b@oss.qualcomm.com> Date: Wed, 24 Jun 2026 15:28:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/8] arm64: dts: qcom: sm8450: Remove unneeded reserved memory nodes To: Esteban Urrutia , Bjorn Andersson , Michael Turquette , Stephen Boyd , Brian Masney , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Rob Clark , Will Deacon , Robin Murphy , "Joerg Roedel (AMD)" , Vinod Koul , Neil Armstrong Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-phy@lists.infradead.org References: <20260622-sm8450-qol-v1-0-37e2ee8df9da@proton.me> <20260622-sm8450-qol-v1-2-37e2ee8df9da@proton.me> <6123a923-21dd-4f69-9ac5-02165963027c@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI0MDExMSBTYWx0ZWRfX95dvGD5wgUOu 3g/Rs0ZwjJgi6W7IS/CDMKJ1WSkfr5MYalbxsLjR+I9jYz1IHnXXPRwyjKBsbvrNfgg1eVZA/yL fjw2o+R9QVEBEk0s8gCYHbdkOFpxqJY= X-Proofpoint-ORIG-GUID: 9wjXyvOFOTjGC9yJ6prdPGmPHIcYK3Aa X-Proofpoint-GUID: 9wjXyvOFOTjGC9yJ6prdPGmPHIcYK3Aa X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI0MDExMSBTYWx0ZWRfX3P9aGj0cbMWp Hx/qsyMm8owCxV+beAAx710eo1xvno3SJXhDUpP62Jz8i83EZj6SlykVQmv+4mkbMDoqo+VqZlc 8T/djtKpw/ONJ7qLEkA9Oaxlu6FFYq76ew3E7FX4lftvuOhu6A1wq+x1zRj/mzTkgf2u78A7dwf LTDBoBGzAvg+0IErl4td/VGAOs9EFlWoS1B3B0hY3c9MI4GWno9267DJ4BDVAM6obySLB2ZWeGV ainYTsxY4niT1wQXvOtvtZEppkEJCB+b3PK4eUYU4O9iR5Ra5W3dEYL+v70P16RWRZhKVtBU76c fksjS9ai9SRspOp8U+CwPoeVlHRaYYNeZ5Lb06o36Kh4xd2cl1+v+d3I1O5r2oYo4laAq7kxWSd zB3bhJXBUm2nYTp8E10Rh6+MmRIARw== X-Authority-Analysis: v=2.4 cv=Q9TiJY2a c=1 sm=1 tr=0 ts=6a3bdb6d cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=oK1bmnR47wnCuWhRGskA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-24_03,2026-06-23_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 phishscore=0 bulkscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606240111 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260624_062815_577463_BBEA74B8 X-CRM114-Status: GOOD ( 13.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 6/24/26 3:26 PM, Esteban Urrutia wrote: > > > On 6/23/26 7:03 AM, Konrad Dybcio wrote: >>> This is mentioned in the memory map description, but is not part >>> of it. >>> >>> I booted up a 8450 HDK and it doesn't even have MTE, so it's >>> probably valid >> >> i.e. it doesn't report MTE to Linux. I don't know if it's Gunyah >> trapping it. > Then, should device trees delete these memory regions on a case-by-case > basis, or be left as is? I'd delete it and reintroduce as necessary Konrad