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 40EE03750AC for ; Mon, 24 Aug 2026 05:21:27 +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=1787548888; cv=none; b=n3wKnuLXzz1gd4FKaUgLClhL6evdDHA2K4AmVcoCuXCBUr3lTbem6/3ut+B/YlE84fRnZorSw0kLrlAgFMEumgiKotVZ9drYRfuiGITRe9bswKVsN6q0d4fmJxRfWViv+iMp1JVj5FyZT7MXalWu3fs8LOQbP+eL9sLP4RgqxDI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787548888; c=relaxed/simple; bh=MUv/r2sK0SBsxHR/er5eAJxiIiwiIoXO8nusLF6tYs8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=hrNAx6Wg3VM98y2iOww6XiQ2Dv+qdvIXf9DRep8xAbecHsVtbDsw81a9pCSb0KHWETfn2jvpBTYEoGfWYa/mUJ06NBt2MSFIAwpHq3bN0OTSLZLzRv4VzfFR0I3quyZRJKE/lv7dsz/vuy/sgjvcQ6uO9PUSBco28QUHGqunOcY= 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=eOaB1DSn; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=H31Q0Ujh; 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="eOaB1DSn"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="H31Q0Ujh" 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 67O0lFdM982957 for ; Mon, 24 Aug 2026 05:21:26 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= MUv/r2sK0SBsxHR/er5eAJxiIiwiIoXO8nusLF6tYs8=; b=eOaB1DSnQYU2Sb5i wBG1Rc6PxrULAMe0K/sLfwmDpa13Nm5QfZ4zgLFte3q3BCd+JuWGymmDTrguQ29E 3vjRabhCEg0g/JrN3/TPvTLdA2an9eELt27R2k6Zq5bShq5JIE/Klt0/ueY681y9 NpVlDcIk34KYvEywGHqlvAco3/qkxCVoDaEPGFq+SuqEmi58thiA+Qm+wVkCPtly IBzY6ds3VK2LN0wTYrghYnhqkKJLH/k08RO6cAAdwJ/2tzSBwnFLY1qOynahG27F WQ/WVuvxrT7GiUBVpTtlNZ7li6PLdJzrFRdAnlOQK7HtEHXS8Jk0q178z2V4SC36 SsbO+w== Received: from mail-pl1-f198.google.com (mail-pl1-f198.google.com [209.85.214.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4g7456whh5-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 24 Aug 2026 05:21:25 +0000 (GMT) Received: by mail-pl1-f198.google.com with SMTP id d9443c01a7336-2cfa55c9430so27466175ad.0 for ; Sun, 23 Aug 2026 22:21:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1787548885; x=1788153685; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to:content-type; bh=MUv/r2sK0SBsxHR/er5eAJxiIiwiIoXO8nusLF6tYs8=; b=H31Q0Ujh2cexqR/0xwJphuSC9SSJRBmt0cSryhnmH/I08sXBZv5++weXEajnQS0RZs xBUv/ovC+SR8CSQCWO28v3Ky9O9ZburrF2QrpjvYg62ArcPuuvcsHSZGfv3ZUjnPOhIT OwhN3Y7z3dIFCnOJXsNc+Gqc98lxJYC/P7s5xzM7f7iKl4lP0exqQVyrgbz5UuuEOZS5 U2iZJ/HcbBF01nosYx6oa87Th7RpxdtwDje76bgEivf/h8ny07wnMeuxjqoIjDZuCaaO xn8AdlM++vWJ4x7Jqad3s0zEiqnuSDE9z1rl+INqKUG8x435LN3wYM8hAAeJ7IBe4DsZ 3hYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787548885; x=1788153685; h=content-transfer-encoding:content-type:in-reply-to:from:references :cc:to:content-language: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=MUv/r2sK0SBsxHR/er5eAJxiIiwiIoXO8nusLF6tYs8=; b=SikJIV9RcxqF0t+9Qi/tBdZOd7KqbnjvIX1Tq8lIhKyAGd48ndY8Ji7vWjq525/xWs G93Ok7d+Mo/GNo3yexOC78R10EMpXChP9ucpQ0LkjgqQiMFqEcfd9slXaRG1SuPLk/BI rfz0tTpgkMz/rG0IPzg8/5NOmPdJ729WpOw9M8nU7emja1qJ1q3A0J5WF4Q3XzsNxaET ROt26RyqarwzxmuG00IMdMmU31Fyq34rRCkB6EGkQRNCocOi1HqRfl2G9tCcfqWI9TAs URSopdXVmllB7YBknUri6i7AGsWTO6kZZwgisT2OgS7wEMuea2Hsl+x6u9Ro9w7Ic9fO DJng== X-Forwarded-Encrypted: i=1; AHgh+Rqhr34iQEGRFOd9SU80s9imUYDRSiWMSMyzSlSp/MWvmy7mLdCuTlHnUa0VwhndJJrB76WQ/QlVH4dCiKU=@vger.kernel.org X-Gm-Message-State: AFuF++neGoFSzsInSQappI5yiHfyZNco1VKW4BL+WNF929ypxBlgEDAM wc8dPhn97W04cMdSfquNCd2RscCaFrSB0N42u9QkGORBbBJsjm4HR041Sp6XgyRjmZlgbuYBOfj Lw/sApfU2/JD6hRNujvkevjBKaO4TqhKXmfMmxMEKXnwc5BYAp9NVSM1cGzUbdQfsxF4= X-Gm-Gg: AR+sD11SV9guk6bGwYPrtYlKZm1Hbyx1LL+4cPHM+SaTIkyuz6ir31w+CgJtDP1fCvc O3U7XHZfbIQ5FIqLzILsGvRz2RIWjdlr5L3oaeUn5ziIfzNACas+ZGCvA0INmJHUzSsB1qT2Uhe fpo3b1/VwhyBqi31HCU31/FzPCmB97ARfDUhoUZbjzE01KT+7/Zo2PbIkyCQVtug0FF6tAHSKlA sMZWOhYaWQMPS5kG+Fi19lZBI1n+OpM7I0H/RcKFr+TEvYO6zCshvES7vXC1yz6sNJDoydjxcAm a2jw/sV8rjZsMgE3isucjFwK4kn1uCiiOfIYpov0d5JeMra3BC1TvMvC4aAahZF2LZ4mum2wCb+ rtwJV5V2+cqhI8ZO0OMMksg8kMwCDG3Jf X-Received: by 2002:a17:902:da91:b0:2bf:27b2:4b80 with SMTP id d9443c01a7336-2d64b0b6ad2mr328235425ad.14.1787548884803; Sun, 23 Aug 2026 22:21:24 -0700 (PDT) X-Received: by 2002:a17:902:da91:b0:2bf:27b2:4b80 with SMTP id d9443c01a7336-2d64b0b6ad2mr328234635ad.14.1787548884281; Sun, 23 Aug 2026 22:21:24 -0700 (PDT) Received: from [10.206.101.140] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-327f922ac7bsm21411128eec.25.2026.08.23.22.21.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 23 Aug 2026 22:21:23 -0700 (PDT) Message-ID: Date: Mon, 24 Aug 2026 10:51:14 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v2 3/5] arm64: dts: qcom: sc7280: Add dma-coherent property into venus node Content-Language: en-US To: Krzysztof Kozlowski Cc: Vikash Garodia , Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stanimir Varbanov , Bjorn Andersson , Konrad Dybcio , Hans Verkuil , Stefan Schmidt , Hans Verkuil , Mansur Alisha Shaik , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, stable@vger.kernel.org, Bryan O'Donoghue References: <20260818-iris-fixes-dma-pseq-fint-v2-0-8dc8c4b3880e@oss.qualcomm.com> <20260818-iris-fixes-dma-pseq-fint-v2-3-8dc8c4b3880e@oss.qualcomm.com> <20260819-daffy-armored-angelfish-3be5b1@quoll> From: Vishnu Reddy In-Reply-To: <20260819-daffy-armored-angelfish-3be5b1@quoll> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODI0MDA0NiBTYWx0ZWRfX+OICwmiu5Qw+ 3qzvXbzvCMg2XYSAopLgHca6dYlCz+wU/adJs5Wvwq0qD6Rx0bxbd0ee5vCcDq+DbDUL8V+j2Bb CQNN0iM514JgBtXGdAz2c7mboAlJoM0= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI0MDA0NiBTYWx0ZWRfX5KvcFPei072m Md6Kt984ZrbVDjRGMjGvkf7GUmeBRiOeoL1MInEKupOXEP2wNLuCpE538vEF3JcLygQKB9717DM namb4T46xwOA/6Ibu50fgHhCK8B5JxrV7mAiomahA0kOkN3YilMNrkRfoJklOFpSFaF9JOzq8f9 mPybOT4G6PvlM2ClnvskAKYiAnPqhrVQHXRBfAMHqFr73qD7gJXhXW6Min4fP2UIcyEgsbEmG/+ jyPXNaB5WvgDEQDu+WLIrOsyAPE07wfZRUqJnM1ltQcoGQh4basFSD8ROjE8xPungvm8w1M3z1l Coq/PerpVE+f78tCSaKZqMM0MfS1T/3eN/hwTEzM+VUCus1qWUsBK5FBPBHgxYqSYgRWfZHztDy LKH2G/2EQTVzZfBvlmEu7PFE3bSLpDeYcRWWP0d2JRxDeZTn6nVif7tmmEIBE8vqW0h3oVctR0z +6qzV++aJtVOmfDkp3g== X-Authority-Analysis: v=2.4 cv=RtL16imK c=1 sm=1 tr=0 ts=6a8bd4d5 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=F9kTNvDYw5psoUNgSeYA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-ORIG-GUID: oNw6noOtJKSx64N9pO78bRRCjj9VmAD9 X-Proofpoint-GUID: oNw6noOtJKSx64N9pO78bRRCjj9VmAD9 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=2026-08-24_01,2026-08-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 adultscore=0 malwarescore=0 phishscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608240046 On 8/19/2026 12:46 PM, Krzysztof Kozlowski wrote: > On Tue, Aug 18, 2026 at 09:24:16PM +0530, Vishnu Reddy wrote: >> The venus video hardware on SC7280 is IO-coherent hardware: even though >> the driver does dma_sync*() calls for the input and output buffers, the >> venus node still needs to declare dma-coherent so that the DMA mapping >> layer relies on this hardware level snooping to keep the CPU cache and >> the DMA buffers in sync. This avoids the unnecessary cache clean or >> invalidate operations performed by the dma_sync*() calls, which are not >> required once hardware level snooping is enabled via dma-coherent. >> >> Add the dma-coherent property to the venus node to describe this >> hardware capability. >> >> Fixes: 37613aee2179 ("arm64: dts: qcom: sc7280: Add venus DT node") >> Cc: stable@vger.kernel.org > Nope, nothing to be fixed here. I already said it last time. I'll remove it. > Best regards, > Krzysztof > >