From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9FEA64848AD for ; Wed, 30 Sep 2026 10:33:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790764423; cv=none; b=Dp5oW7cvyUQy3fVLSoZ8R9ycSafTILHsNs8wHxaCw7JhLPvl6s5L20LI0Ks6WOSTWQkFRtsESbqS0jmxoYZvLtQwNi4mCfTTXx/wAbjLwtVgxbAo2epVwe9v3W/4RXhJkxn/qFt48GvfAn72XDUe4OV0GP2dowI3KevoWg6Z7K4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790764423; c=relaxed/simple; bh=7R77TQqIMmdGoS2eO0kXm9TNz0zOrN2y4HHSkA/2YWE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Pu5QhsGCk+o38wAWFBz43nQGXdFKivzVQ5DGLIkTWeQuFkDSesXlWVR+bjo7P8kI4V55zmmu73bpPM4DK/SdekQZoQD+9p6038VLi/tIabNdBQ6hAvEdIK4rS5Im6gs8IJqga2rP3txcjv0YDxEsJEE44CKIpbalwen81ogGZDw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=XI1nt06I; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=KPatqYKL; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="XI1nt06I"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="KPatqYKL" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 68U7dTgq2119122 for ; Wed, 30 Sep 2026 10:33:40 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= oGZvKGq2A3pM90buZ2VNpRfUMGSk6SlqzeIIAOV+V2w=; b=XI1nt06IC4Gfyq9B JaF7mWhGVLDxYdGSxYjijvlM8YeKzgINZOmi8J67i8aHtGJWksB1hEPIV4ig8K9Y 7sp7uM28bWnzm8YEbZG+EabfsxVJ5gmmuwl8NQPz9WDmbJ0zje11WAEEJyAkBHVJ GBnhrWjuTBdj+8llu4FsgTfPySBU0+56wp9sTVcxWv5epg02/kQzbDiyKTKtWENb 4neqAvUEjWOvc5nxH2sZnbcqnfMiqX8dYXTNJz/PYEf9XewTJlmpt1ZbxDTlJv5c ewy6wCextAHBTubv1xxsUA9LSABrAESqb2b1F0Fff3uh8ug/Au7ScgXVwICz539D 8V2UlA== Received: from mail-qk1-f197.google.com (mail-qk1-f197.google.com [209.85.222.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4h0rhej9dm-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 30 Sep 2026 10:33:40 +0000 (GMT) Received: by mail-qk1-f197.google.com with SMTP id af79cd13be357-93c9a1cec69so26834385a.1 for ; Wed, 30 Sep 2026 03:33:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1790764420; x=1791369220; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=oGZvKGq2A3pM90buZ2VNpRfUMGSk6SlqzeIIAOV+V2w=; b=KPatqYKLTa41CEXSlNOr+4zirS1jeOzOrIvsT8dAbYQJjDACdlKzsFDU3kvpa4okVZ 3deEjRQc1O094UB3uuuyfJr17RWobZLchQnb+UTt8jipfBTy2yOK6Khtqghpj8LlUwre hBXXTWaNDsqTPMV3+zDmzEvtvSf+XlrLdJyIRExORHBeXBi+Oygtt26BejwW3A8QjfIa 727Lek7HlK2uC7AcxATow0DjDw1yt5t0yeksYGU5ZezGHZI/kMAalcnjIKc4CbPgEN4D A+hsesHIt39/tih3aDuA5pIp79Q5Ek+inTad8fKH0acxme1/w1ELcEDjVCgbF9aqE4LI jMog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790764420; x=1791369220; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=oGZvKGq2A3pM90buZ2VNpRfUMGSk6SlqzeIIAOV+V2w=; b=RNy9f8LeV3+TC/gXHpIlxbSIIKT9kTnOt8qPxt8fT27M/E83D+OnigYxgKhh0soY+f RD7LCirITODvMGkkJ/0rd1njAAIzk4AQj6AFb0YET0R9Fi544L0+LeHbilEv4w6cwmRI 90yaIghuNNyzHioNFx8hZq1ybVFJbBniQfDlZ/RulssYPPssNuPUunrWAM2r2Jk5CLTk ZmqDKwKojm19Pub7vBC/+A1k5WhP9sKqEtYA7jWNfg2vwoAzhybxRY0nwnXFXVtT8r9U LTemIuGp9/8siL3OAYdwI/nW/tW8oIS6MKkjGJ6Wb6HY0PROp8B9R+Q5ybIKBsMnYruw fSjg== X-Gm-Message-State: AFuF++n0ME64JWRXhKIN4ft5z82DLxRekuYOAA9ZCQcdRSktMTmVk8sW NsmMQq9vbLG9Pcm9NP7mBlsMep5pfN6Sj9y7oW+3lcUlnySIFGpY5LBTeNdGmBkksDzgLO27Pan ohET9w0rAipIRYXQG8D8hbh38sDu2oXGYiHnhVQ9tDPvxuFbgM+++pU2y7Ir5isyGtQ== X-Gm-Gg: AYBFou3diEgg2+rZ0J4jN6hWcPd21ylo1ZgJjtzXImhOL/JlOAidzyr2wWHZWiXER9I c83zInkf2g6RBEp4gJnHUK7JK+SB2A91zsA1OfQFwqRCEfbd3A21BjgyNb3JlIrvaMIGnW7ZC1F 4F3hOm8tHleFJMDmslZwZFs6gluu3SeMXO/BHU3LXnhT0bhUdMvzBwzhhkNf+4eIh8/vIbr+sfl /wEKVFQ8KZEny/Y0uJQfNGRY0psGW/awlFBRzRWc4l4ThGdnvkMin3T+lxnz42VUQAVAaSvM5zh jrwSyReVD2dMNLm242O07ddlJvoA25loNuPoyJtEGhBT32YhISZ+4EV5QZUdXVWmjD74xjDqP3n 6Ovs4oyYWKMwysblbe+cyYg== X-Received: by 2002:a05:620a:3195:b0:93c:5bda:9711 with SMTP id af79cd13be357-93ca980894fmr145340685a.6.1790764419733; Wed, 30 Sep 2026 03:33:39 -0700 (PDT) X-Received: by 2002:a05:620a:3195:b0:93c:5bda:9711 with SMTP id af79cd13be357-93ca980894fmr145334485a.6.1790764419199; Wed, 30 Sep 2026 03:33:39 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6ae047e9a39sm671766a12.1.2026.09.30.03.33.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Sep 2026 03:33:38 -0700 (PDT) Message-ID: <255658f9-cd6b-418e-989e-60daa36ca498@oss.qualcomm.com> Date: Wed, 30 Sep 2026 12:33:35 +0200 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 13/13] arm64: dts: qcom: sm8750: Add Iris context bank subnodes To: Vikash Garodia , Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Stanimir Varbanov , Neil Armstrong , Dmitry Baryshkov , Bryan O'Donoghue , Stephan Gerhold , "Joerg Roedel (AMD)" , Will Deacon , Robin Murphy , Abel Vesa Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , iommu@lists.linux.dev, Vishnu Reddy References: <20260926-vpu_iommu_iova_handling-v5-0-0322ca5dc10c@oss.qualcomm.com> <20260926-vpu_iommu_iova_handling-v5-13-0322ca5dc10c@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260926-vpu_iommu_iova_handling-v5-13-0322ca5dc10c@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: Mc4_aCpFTe6wqaiuU6aCEVn_hwCi4lZQ X-Proofpoint-ORIG-GUID: Mc4_aCpFTe6wqaiuU6aCEVn_hwCi4lZQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX+SUhFkWgYb+1 8nPeSYV58OAP9Rc1KFPPCfWfGL1koMtaTyIGoKoCI57IQm/AzV9wFmk8zRKkHuFFOEwZ+bwawlp iMZl8rp/j8gWL0FsYm9axhR42ujRZmhUjaRKYjMzcG0mnGuKV0KKtkhNx4cU6Uy/kLeIZJ2c6B5 JMrHFjZYijhMTXOyGiD2XNSd5SINcgjtwpYEeCXzFmgxdYDIVDWDeZWa2nJkHDfI3YlrGtzUG75 MNJz6z8DUSJh9cnGxZWCq4BewE0EZ1k2ERph88eQjo3HdqXDguK00ZTTQjOvikh+IOYrUBwHZI9 5sZ+4uXFLQhdcMIFE4BfplAAkhORj8VrrmtFdESEijyXVkwfhcDRP/lHjkds9Fca5B3aSdzWLRb HCeltpkHnh0l+YHs/mjcDZgSxZ3Rk+VEvFsRfyuiYN9nG/Vp5n/8nuM/2iL8UKjhK4kUaLaDUlg E7WFPJBnDhNcXf5Bz2A== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX+aSBHAN4lMuP tBzYaqZ2ght23aai2pdUGutAgpodtrVpLMlmkXqZQXfEUq+fZmEw1NTVIqzheWm/lTMS6d43glC m6hmw6dVVbBiKcxGA5/voAd3qhCy8uk= X-Authority-Analysis: v=2.4 cv=Tu1zFzXh c=1 sm=1 tr=0 ts=6abce584 cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=4BULcDCo1EIeXDFKsSoA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-30_01,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 malwarescore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609300041 On 9/26/26 8:34 AM, Vikash Garodia wrote: > The VPU issues DMA through several SMMU streams, and the hardware does > not give every stream the same addressable range. The non-pixel stream > cannot address the low 600MB of IOVA space, while the pixel stream can > address the full range: > +-----------------------------------------------------------+ > | non-pixel stream addressable range (600 MB - 3.5 GB) | > | 0x25800000 - 0xe0000000 | > +-----------------------------------------------------------+ Reviewed-by: Konrad Dybcio Konrad