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Mon, 26 Oct 2026 05:16:09 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5bfb7a9c0bbsm1587764e87.77.2026.10.26.05.16.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Oct 2026 05:16:07 -0700 (PDT) Message-ID: <673273c0-efd3-4ee7-a008-7e70fdada1b9@oss.qualcomm.com> Date: Mon, 26 Oct 2026 13:16:03 +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 v2 5/6] arm64: dts: qcom: sdm630: Remove FastRPC compute CB9 entry 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, stable@vger.kernel.org References: <20261023090308.2898683-1-abhinav.parihar@oss.qualcomm.com> <20261023090308.2898683-6-abhinav.parihar@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261023090308.2898683-6-abhinav.parihar@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=G7GJgNk5 c=1 sm=1 tr=0 ts=6adf448a cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=HmQ7WK16ZiDfZ1s1pZYA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-ORIG-GUID: Pc33y1zLqVeSbeBWTbiVzcoThoFWuAVe X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI2MDA0OCBTYWx0ZWRfXz8rOwTqDq1f0 t5uj96aAYVky+tVvZIxmO0yITp5kpDEO3eu/Ml8OsVsbYBiwcQZDdRQa27rGu/FzevLc6xgybse v+SmjcM7/UxpEQ9j+GkB6Q5t72v50PU= X-Proofpoint-GUID: Pc33y1zLqVeSbeBWTbiVzcoThoFWuAVe X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI2MDA0OCBTYWx0ZWRfXxZyIzEonaW42 X26aGjIwFlTgv5BEZSma373h01pSUhGif83RJOQRoUnoTosQmjcxHzdPjezfMGiyFUJHQA6WvBr TTL9T62mqLaeFQ/rmuM8dkQsyVrYCLNIPD7EBzqbV8Zhjv2oAZdJ242mkiQVyxw+AzKjLczjo3m zsp4/P6kcRI6lPwe5UfAU6ZTfpfcBTRuM2mdoJ6+8GsrYtiOcKwdzTfF8w+7eMfIx3bmcub87uX Xg4r6aktUC2zvqA0pM2aRpAeoHmN4F48wvH6U2MDt/G9WlU/GfKIPQHLQIujn7446r61OWEdH/0 9UhZt1WWx/PqffjAqhjaHCN/Th9V7D5E3DtlYsbjjuagsXv+wYNBsKoUS92Ni++VvjMZb/FXkNf 1wQQ2AD4dCrEkoMBwfylTCNJqZ76DJZ40B6Crlj6PgEVMD71vccsE+RTLUGuOUVfrReoSroiVOD M8wI0VB9OPwztNqhpZQ== 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=2026-10-26_02,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 phishscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610260048 On 10/23/26 11:03 AM, Abhinav Parihar wrote: > Remove the compute-cb@9 nodes from sdm630 device tree to > prevent clients from selecting a secure context bank for normal FastRPC > workloads. > > Secure use case support is not currently implemented upstream. > > Fixes: e8e1fb5c703f ("arm64: dts: qcom: sdm630: set adsp compute-cbs' regs properly") > Cc: stable@vger.kernel.org > Signed-off-by: Abhinav Parihar > --- > arch/arm64/boot/dts/qcom/sdm630.dtsi | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi > index a41ba0da380b..721885455639 100644 > --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi > +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi > @@ -2483,11 +2483,6 @@ compute-cb@8 { > iommus = <&lpass_smmu 8>; > }; > > - compute-cb@9 { > - compatible = "qcom,fastrpc-compute-cb"; > - reg = <9>; > - iommus = <&lpass_smmu 9>; > - }; I think 4/5 are secure on LPASS on 630. Konrad