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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: devicetree@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; 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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