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 44C2B48594B 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=1790764422; cv=none; b=gmg8FjDI1Kb/soUvONahmfmaE/NFSjhYzjO7bq+ZTI/gUHDMRuwPcybNwO6KGEURcrw1gLdIMT/kL4OF2gnJi19ztjQ54szVeJU3tGRKU2Q6/hWsqd0pDKE/dZjmdAVLjXaAOTf/TCUrcHCOOf6JNk5G6O2b/HbQwbCr4Zi7wRw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790764422; c=relaxed/simple; bh=7R77TQqIMmdGoS2eO0kXm9TNz0zOrN2y4HHSkA/2YWE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pUh9P/FPZb1FoacCEw9ynepNkFYH8rwogiWx9v4w4iOVkB9eScuH1WFleZtWs1lq9S9Uc04jnZXe3MwqEeDsAOScs/Yc9WzVdGzKDScHldqnfmSeDara37C57Du/MvSLRiE+gGkOp26qPSIp3dOON/fZxBRDHVdYY//07w+h408= 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 (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 68U7dgoK2820144 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-f199.google.com (mail-qk1-f199.google.com [209.85.222.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4h0rj2t93m-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-f199.google.com with SMTP id af79cd13be357-93cac495d99so4179585a.2 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=De4SxN1pQ7Poxw+pThdGD9jKdbJOFCUtNJyrXcaAh7Jiy8vkdmXVCky8P80q9pzxSu /MjlD03Tn4ULmJpdFgM1NHEpsA9uSbUoVkYrEViEW/OP9gi9ZYBsjPt4MVLU5LzaCWhA d0BAqDYMWvuzGA02HQcVUlsXaoSg2/56CvaAi9tuJQGVAzT/6eEQ2SD6xy2yVDhn/pEZ c4qvUS34S/uwLmj7zesv41b5gfPDo8OQO1B+CvXZk9MtjFcNhOr3Z/n8IApZ3D70heJ3 NKmE2cEcQahmCv2XMMYY6Ct6lGOCGtSWA6bI5vYs435w9daG29gbEfGxFByR77B1Kx0z 7C5w== X-Forwarded-Encrypted: i=1; AKwUvBzrYyoU0Efu1gYlYVUzFwJdV77zab85bYRZeP+OtCOXk9E7aXEZfVcEZTQhsE62owtvRQ4Oc320I1mJpkU=@vger.kernel.org X-Gm-Message-State: AFuF++lyzfuTQBycYLfOo2eMdSe2A4/oQABHlwsOiCfSXqM6mFxnhPan jI+0oike7xDX8myiZMaKNb/MnAnplaWLNaqoDh3JCVbkEABrI18LudOp4JvJQNji71bSNIo+Itv ZpAc3srog3z/nsS3qWG+J+PLD+q9TQlDmKB4+d9lAaLVCq2umfgA1a565ZCHzWljiW7w= X-Gm-Gg: AYBFou3McodxsdVuLjQVQ3p70WCovj+3KaGqufmQzUhZuGeNcXJ2qbLd/GIjKOAFRbP t6KBTj0EeSNRKZmr5BL9C2WxanmWtgfPdGX+CFyCockPP9N9bnrzq+BHrsbIvD8T2UFii3gtbnj uuVVUBf6pCa5zThynsKNjn0Wmkzl0Dp+ZXJPqppfgZLo0Uf7G80eBgD44gSHaM7zEOG6UYDz+3L VxsbH9ofNH9PrzBvpX7EUnVUs4A+yGmJ3t40uPGwwJLGPELjGIPMmKDl//pmQCeGMeU855Nvwin fpKy3f9sNwfRVKL3NDQchbm10bGjV7ZIBrLjX3nVkJrnquzpWoF6daNW97DrjGYiAgZ1Rpi2Ioz AqBr+7gVVAx9VDBu7Hxwobw== X-Received: by 2002:a05:620a:3195:b0:93c:5bda:9711 with SMTP id af79cd13be357-93ca980894fmr145338685a.6.1790764419687; 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-kernel@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-ORIG-GUID: NBAz2f9hJnEBab9AmtKjwzBS7jKcGsAj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX+TsU/hTLqM/h T9UDg8DvWdzpgVhpoH5rON5bWlyYbXrdyKwgy+sEN3nuovVoXHDqT7LDpRX/Nx+WfsSYsDuDAKM R0FHRjlUBfuTuRovWh1YQhLa//rPq5zt2oT0zRp4EPT5EOrIOjW/eaeOdxOcecM0r4dLW/h7CLf vqnk0OwglBDAZ2wJ5/9sdMpJ67RxYGhpKsWCB6FNS0oW0ouDjFh7ycGMkawcuuOSvXtagtylLLF 38MVYeYqfMK0Kv1sR6nUgfAZa6riMtPugYO0NzZomkBHLDw2fPXSkuAZ9BVnkRmwc0kp5t97a17 k/aEZkhb3uwUBLqj7EWeSUao9X4zuEFeJsHLYJMrAFR+WGPK6uPJ2H4L1Ut+HxSKKFXoCLxRhdK H4ydk2w/6C/M2MPgHMM/b6PlbOcoFQWOU9VN5o5nA10hg/MTJyQTB8cBIL/keS63eR2a9brLqxq U/cyz9Cl48v/NERC1vA== X-Proofpoint-GUID: NBAz2f9hJnEBab9AmtKjwzBS7jKcGsAj X-Authority-Analysis: v=2.4 cv=Ypya1IYX c=1 sm=1 tr=0 ts=6abce584 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=4BULcDCo1EIeXDFKsSoA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX1DWa/ldxtwjW snKg1bxA7JXU5DEHmx8SIDx24qcm6xoSXng3GWC2SB3e6dFLbqcJk7mWt3jP4K/WBcAkpFC87+A v7+NuvOcI4ZQREbZRbEivBkF6xg8ja4= 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 suspectscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 adultscore=0 impostorscore=0 spamscore=0 bulkscore=0 phishscore=0 clxscore=1015 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