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Thu, 05 Nov 2026 00:06:22 -0800 (PST) Received: from [192.168.226.1] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c4d0e4a771bsm145751966b.85.2026.11.05.00.06.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Nov 2026 00:06:21 -0800 (PST) Message-ID: <2c31e18b-18a6-48f5-b892-b343f47907a7@oss.qualcomm.com> Date: Thu, 5 Nov 2026 09:06:20 +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 0/4] media: qcom: camss: fixes for SoCs without IOMMU, RDI and CSID1 streaming To: Allan Siriani , Bryan O'Donoghue , Mauro Carvalho Chehab Cc: Vladimir Zapolskiy , Loic Poulain , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov References: <20261104202313.72494-1-allan@fatecpompeia.edu.br> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261104202313.72494-1-allan@fatecpompeia.edu.br> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=Vtm2kO2n c=1 sm=1 tr=0 ts=6aec38ff cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=sv9X2YDxvq9Wc_PriaYA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA1MDAzMiBTYWx0ZWRfX5rwgYyTF8jDX qbc76qljqc8wDXWeUbOqf2Q7l2kyLXlbmODbeCKaoQB3AjLdQYXecI2kud7JaboGhNYRl3BNdQU jwyIFPLXkRn5miznJWBqP0HYkhdkio8= X-Proofpoint-ORIG-GUID: fYbZ0q46BjXtgvxEp3PDx-heda8qStFt X-Proofpoint-GUID: fYbZ0q46BjXtgvxEp3PDx-heda8qStFt X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA1MDAzMiBTYWx0ZWRfX1bb48WoJKFYV 5nmb4Pa1KEgjeUj7Pi7r6FlbmnQj57ulhfWeVamkqDSG8MCqUbH24Aan7QigiIKOK8DdZC5fvdU qP5SvyUEBh25fhP60Eh/EXlHTtYJmSxOI0ql7Q1fObraFxrruOmy9YE8eqE2gJhlezO9vR2r53z 3R9lqw+gEtaDXTSkpwk4m6zBCha6mr8GV8FZgyYSlrIO1Xobqr9imO78EsoMdQwvz3xVilA8xrL qPopDO7vjVYMNmvCN8DBAPajeDOzb6WzjWJx16h0HpddyYMvAsaFUQXXIBqg19mKGBl1n8PTrZ4 lLvyIEtBK7U5szW9rGIGneeK0xkqSddSDoI5gCtK4oXNXKMuxWet3s8QM2XrZACXdVALqaW/xFv rHCDtilOo9E7wN4Jj9AiF2FG8/X6bgA0Pt8WO7RZwHjaiM6W6Z33YKJ1VIzBQ2ObCBTvLS/0zbv BUuDFczyVbHxg74AWLQ== 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=2026-11-05_02,2026-11-04_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611050032 On 11/4/26 9:23 PM, Allan Siriani wrote: > These fixes came out of bringing up the CAMSS on MSM8226 (Moto G 2013, > "falcon", MT9M114 front camera on RDI), where the CAMSS is not behind an > IOMMU. The MSM8226 support itself will be sent separately; the problems > fixed here are generic. I believe that there is indeed a IOMMU in front of this, at the very least in front of the VFE and JPEG. I suppose this is "just" because upstream doesn't support iommu on that SoC? You may want to take a look at https://lore.kernel.org/linux-arm-msm/20260809-msm8974-iommu-upstream-v1-0-87f5cd492560@oss.qualcomm.com/ +Cc Dmitry who poked at that topic Konrad