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Mon, 26 Oct 2026 08:28:30 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c46bd4e9968sm334450866b.17.2026.10.26.08.28.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Oct 2026 08:28:29 -0700 (PDT) Message-ID: <652f45a3-8af3-4460-a081-30f67bee400a@oss.qualcomm.com> Date: Mon, 26 Oct 2026 16:28:27 +0100 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 v2] arm64: dts: qcom: sm6125-xiaomi-laurel-sprout: enlarge reserved_mem1 To: Roman Linev , andersson@kernel.org, konradybcio@kernel.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, barnabas.czeman@mainlining.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260821032541.1856299-1-admin@mswin.me> <20260824155535.335494-1-admin@mswin.me> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260824155535.335494-1-admin@mswin.me> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: YtHTspmSOBE5alBwusRASGDKGaFif58m X-Proofpoint-GUID: YtHTspmSOBE5alBwusRASGDKGaFif58m X-Authority-Analysis: v=2.4 cv=a4elZkSF c=1 sm=1 tr=0 ts=6adf71a0 cx=c_pps a=UbhLPJ621ZpgOD2l3yZY1w==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=p94XzNcQMd10UbPFJ04A:9 a=QEXdDO2ut3YA:10 a=TOPH6uDL9cOC6tEoww4z:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI2MDA2MSBTYWx0ZWRfX5yIfbpgRHEnh 7Jt8e+5gWn0Wd/s2mN5IvAm51m+tgKzNEaxr+Fm6WVUfBYfkceBvCmLsHNOMJB+IQAF04keDCxX xRcTAyiO194PUc7Gf77GfsQMw95RvtQ= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI2MDA2MSBTYWx0ZWRfXzIRW2S+i+tn2 5QkyIQVkbPjKqi2Oqk35Yimax/iEHqS5i2SD0ZtbrI/ZDmva2bOQZxKvtuo3raKr4ECDXu4TNsK pKm3QubhJ0EtBzXD+ueLkh5rWS+NTPjpz2Rt/LzNwKs8njO1YktqfZswVoi3dfdXP082fBQ730M ZzcmEyV1aTsHWa2IZRKQj53kdKUv55nqgJShuoZ0XbhFqmSXCjO+xUT4pN2kImxWuJbTgO670NQ PT36V3VmXp/DT5gw9nygpqBzWZyJj14fW08Haf03qKywlWX0AsunfzgiIL5yZiYbcCt/zircylP L4omN+yNO35ewEUkgiERIRI/gC9BxlCeIIdi440ZMxvnkePMx7Oo/vMYQogAQVR+j1vLa6HO22d j5k5LakhmjNnlg0+iTfWrpqtmSmtIRamYOUn1GbXmtdw33xaLacevHH6pwQmVQVB0OCxWyLpQtU nVjvq9//A5ay1ylTguQ== 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=2026-10-26_03,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 spamscore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610260061 On 8/24/26 5:55 PM, Roman Linev wrote: > sm6125.dtsi sizes reserved_mem1@46200000 at 0x2d00000 (45 MiB), so it > ends at 0x48f00000. On laurel-sprout the firmware owns more than that: > the downstream device tree describes the same base as [...] > +/* > + * The firmware carveout at this base is larger on this device than the > + * SoC dtsi assumes: downstream laurel_sprout describes it as > + * removed_region@46200000 with a size of 0x4900000, ending exactly where > + * camera_mem begins. The 28 MiB past the dtsi's 0x2d00000 is not the > + * kernel's to allocate, and handing it to the buddy allocator wedges the > + * machine under memory pressure. > + */ > +&reserved_mem1 { > + reg = <0x0 0x46200000 0x0 0x4900000>; > +}; Please update the common DTSI, it matches the reference fw map and I'm very surprised the sony phone didn't crash without that reservation Konrad