From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 1F95236215B for ; Fri, 16 Oct 2026 08:45:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792140334; cv=none; b=ptsWZqtkzRMZoOoiLLuCDdJFviHNnIEV3AWjDH+c7wwhgcSBCZwd1GfbzsGe/Jrd/xfQxmoyD6yZOgI4nQpDrVJkcNUj1ivzvammWGtBbTmRa658B1g4DS4NT481YErCUWFvVMaBCnPCBuJ3Xc8HL529vVmdrcxcO5kDju7a7Ms= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792140334; c=relaxed/simple; bh=lEMlRpoR+kv1GJAGtWryjveEN84E7JieHkX4ixMTAyY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=t7Oocx4W0juFQUCTHupbYQo7pGc4GAq8qr/3qaJ4LQuX/geL/gvWE2OKkf9KUIYCcJPWwKhvE2q9RQWv8tkqB7KbTLyqVdpSzh0tdEm58IKSfq1oI/nPpqeVe7xdmL+lFly3/KSYhsw195OoN7TOU1qRt9XlJWNvbD9pw5t7Pls= 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=YHzfYrhL; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=TtWwWrgP; arc=none smtp.client-ip=205.220.168.131 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="YHzfYrhL"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="TtWwWrgP" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 69G8P8O33202386 for ; Fri, 16 Oct 2026 08:45:31 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= Y9vrQgGb1X1jrtBDG6LZTbTc3+/VZk6Tblt7k4JIVVk=; b=YHzfYrhLuNStdkHm oXVLxSnUYhzx3LNP6TRsqpQ5uMkZi1Ej/U4oFYYj7gkPb/qA+G+FGH1YQLKw1WPk ou1+AJti/26ga1oxOmJMILbpoqHWSAwhBRmmV3GoKA7U0OkaUkOTKSwFGOdjO3xS 36G67YcL+mJJYLuXXX48d7e7sy6ZU3z/5U1AsblGRP1bede99jYu6DNeREoUleot sdLmf3TZaHnt2a0MH2xQO8uIOlR3lG8rkW6d9sLC4Oa15C+4gaC4RyBDl+Tbv3VE P5+kGLjdqjXXfP4jfd1Vn/Wn3MD27hC4andPbhHExmTjz+iE+3lpgoYaFGHyG/GM 9VhgoQ== Received: from mail-qt1-f198.google.com (mail-qt1-f198.google.com [209.85.160.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4hb3r3axnw-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Fri, 16 Oct 2026 08:45:30 +0000 (GMT) Received: by mail-qt1-f198.google.com with SMTP id d75a77b69052e-5356c6d98cbso16983071cf.0 for ; Fri, 16 Oct 2026 01:45:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1792140330; x=1792745130; 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=Y9vrQgGb1X1jrtBDG6LZTbTc3+/VZk6Tblt7k4JIVVk=; b=TtWwWrgPiJAO2PnJvKcUUO3mHZr9ENTRD1gEPwIV7EOxXlOxAs6fxi2myoUaiCkHTN NEBLZq4laOPG2DWptD2ZjOHfqIvYQcJAUATys7CMpKRLVKSIauZpp1oL0RLD5ZLMUEmZ yxJADBQ14yMolL5jG3f7aUCHKOYfuwYdZAvCl9uqZnHMShZJN129VFTbmVtxgqgzm6mv pmTVlyDS55dEJ8O3zZME0IaeSmoyn70nmX8t2wxKbpVUQ5ByhZTD8kl9hDbZyrrDSG2V vZDb4wJinJyfLVOv6tpw31jr05TKVKh53TXNr0z725TlTzAyK/TdsWhqRvz5ZC0ctrVm uhGA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792140330; x=1792745130; 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=Y9vrQgGb1X1jrtBDG6LZTbTc3+/VZk6Tblt7k4JIVVk=; b=muuNbMQFhDKFqRn5PS45EzbAlsh3wYSEyoZ+oy4e3l8jTAABmp4n4ydweacB4uPpxH dsKVVhd4eBgfH4FTwxo0CzykBWcC1I5Nr3HDk6JzhLEcILtKvPBHECgVBNJSYLp9fU+C GYE4VDO4fNcEYTG3jG04Htd+069iA1bzt9e8BBUJCcNuD8bNuQ+o4xH9bRIYXmCZ5qgg uY9LQJ/XO1jo72DrdPXS/iW1IoxsL+Y9DQ+VTxpEpCMcjuqRL1tT/jIejaBLEUZeR36G xWw1By7pzHAHAgXUABmf6h9y40OmzEuEaHCGg8FI6QEIzYc1PETNmkcK9rezZ/HdrF7D A3ow== X-Forwarded-Encrypted: i=1; AKwUvBy/nB1ZC9/BjsR0zOSBAPu/euGgRDhscQcMlXZMBFaJGJO0sVMIcuFYi+A7Z2a8W3BFN1CPBet0hlVJX5k=@vger.kernel.org X-Gm-Message-State: AFq9FYLr6AvVUVlankOsoqMMwvYZwGeIavwj4wHTSm+qjle3PVYsX0G1 xSMWvyYnbXtt7j7JrQBv6dOpvqF1of5MuGDCFThtxda/q5u0etD1/+ArLASSV+11QzyJ4ODcUK1 17gJSdBA/hENpqBFYObFKizvRyXOrXcRgAVqht2lS7MPu6IVcUMdhbTy0NW40t6t+Cz8= X-Gm-Gg: AYBFou02eD50AoTVnhd4gWKetbrhqYtnVzTcQIItkPiMlAuBdDDyOD9ZOO36fEfUQq7 sh6dcIayVHtYO7BLhdE7kEjGccNsh4NnHuW33GqQT4vmJY2rYgoLVHAD60Lnb3ev1W2/aqhQukC 5+k5WqgUfND7Qm7Xk6dhluFu5l5w4JQjDfYYa0FndQ4CZWfl9bn5XmrdfVlaiaPxBgfC7KnIcvf 4OjA+X5F23thFpMZPHZRb/4P/1/NKpWCJ+kqlaGXtrvpGor6cfOspkRjsdQuNcOBWoKFBxhv75K GC22It4Or3o3KajleVmdIA2X5kECJZwP6vA8B6Wurivj+tV2ITe5jhlep1rHUne04EMaz/1Cl18 wjQlyQ/mQ4WUrBgCj5o3/XA== X-Received: by 2002:ac8:7f50:0:b0:534:7732:a141 with SMTP id d75a77b69052e-5359f4f6af2mr413655541cf.2.1792140329979; Fri, 16 Oct 2026 01:45:29 -0700 (PDT) X-Received: by 2002:ac8:7f50:0:b0:534:7732:a141 with SMTP id d75a77b69052e-5359f4f6af2mr413655291cf.2.1792140329567; Fri, 16 Oct 2026 01:45:29 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c40912ce05csm52215966b.33.2026.10.16.01.45.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 16 Oct 2026 01:45:28 -0700 (PDT) Message-ID: Date: Fri, 16 Oct 2026 10:45:26 +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 v1] arm64: dts: qcom: Remove FastRPC compute CB9 entries To: Abhinav Parihar , srinivas.kandagatla@linaro.org, linux-arm-msm@vger.kernel.org Cc: gregkh@linuxfoundation.org, quic_bkumar@quicinc.com, ekansh.gupta@oss.qualcomm.com, linux-kernel@vger.kernel.org, quic_chennak@quicinc.com, dri-devel@lists.freedesktop.org, arnd@arndb.de References: <20261016052042.3755352-1-abhinav.parihar@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261016052042.3755352-1-abhinav.parihar@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE2MDAzNCBTYWx0ZWRfX5MReiiwqaXh2 CsvuDFung1K2QZaOOobX+NNPt50wO18X4OTqEszezVUtA2uftlc6A1lmYtnn9ymaWy3U1qVbF5V m7Z+AK2iTW/0il12oXjtUqNqkkRzGD9/7vqXtjzbjDxHA10lXu9EA3dDrXqxCgKxZT3vTYJB1gm DttdsOQBjRsW7TxMMNGdTWfwd+NJWdhaU0BwQ+V1Krhq5qZWQ1bHyFia4bcp+pjHTJc6kvFzX3K 5ipY2jDPJzIXSmGagx9AWI1FHhtG2IxtoqtDj55z+U5x+TsVvRDxWtPat+tUKN/pg+fjXZ74fcs IidJIw2KqgCIst+9izadGtt/qtFBU4rGnuYik1HKf2WAA6hBAHGvLzJB0KGRoKsBWYiOpGMQPSc Km5VBI41H20yWkFtokdNLPoG91amgiTl+oT/q2IoK7wHNS8oMiY9TxsLzxoQHoOO3KUzbAysKHX c4b18jRl2TDFVHFnrAQ== X-Proofpoint-GUID: -V6Z3oOmZmG6lVZgPnjBqDONTKLhvV2i X-Proofpoint-ORIG-GUID: -V6Z3oOmZmG6lVZgPnjBqDONTKLhvV2i X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE2MDAzNCBTYWx0ZWRfX5tkPDggqDXln 7vySYuj5vFOPI806mtD3VOqQGioRya9CPkFn7Le3Tq08kcZ9Yrrl5/TfaJdMqbVSEWEMmRKopzc sNJKU/51sdJBkURr661HcoRziG8kJ+s= X-Authority-Analysis: v=2.4 cv=INGXmQvG c=1 sm=1 tr=0 ts=6ad1e42a cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=t1DTHQtY1fS78f0Aag0A:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG: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=2026-10-14_01,2026-10-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 spamscore=0 adultscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 bulkscore=0 phishscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610160034 On 10/16/26 7:20 AM, Abhinav Parihar wrote: > Context bank 9 is reserved for secure use cases and must not be exposed > as a FastRPC compute context bank for non-secure offloading. The lack of a platform name in the commit message and a split over that suggests this is a universal truth for all Qualcomm platforms, yet the patch only limits this to some of those who currently define a cb@9. Please make it more clear which one is intended. > Remove the compute-cb@9 nodes from the Lemans and Monaco device trees to > prevent clients from selecting a secure context bank for normal FastRPC > workloads. > > Secure use case support is not currently implemented upstream. Ordering this sentence before the previous paragraph would make the commit message read more naturally Konrad