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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2e53ccce440sm2231261eec.14.2026.04.17.07.05.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Apr 2026 07:05:04 -0700 (PDT) Date: Fri, 17 Apr 2026 22:04:59 +0800 From: Shawn Guo To: Dmitry Baryshkov Cc: Will Deacon , Rob Clark , Bibek Kumar Patro , Ninad Naik , Dmitry Baryshkov , Bjorn Andersson , iommu@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] iommu/arm-smmu-qcom: Fix fastrpc compatible in ACTLR client match table Message-ID: References: <20260416152652.958229-1-shengchao.guo@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Authority-Analysis: v=2.4 cv=Kd7idwYD c=1 sm=1 tr=0 ts=69e23e12 cx=c_pps a=cFYjgdjTJScbgFmBucgdfQ==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=HBlysRB72iAwEyOw3cYA:9 a=CjuIK1q_8ugA:10 a=scEy_gLbYbu1JhEsrz4S:22 X-Proofpoint-GUID: jLk-5JOP0HdcUxsdzBvMglpRb5TuqRTv X-Proofpoint-ORIG-GUID: jLk-5JOP0HdcUxsdzBvMglpRb5TuqRTv X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDE3MDE0MSBTYWx0ZWRfX0gfrIuJlITiH dqhOej7a7QBkP+B25z+PJrPseiT9M0ImXeaQGtWnfSB/eNP20vhUOByzFjo768wNjLkATInI1W+ toFqnoEtjO1zdeTwvAlPKuAlsyQyHRpG6X3Y8Ii8/WNkLULX71hzqc3/U5c3+KQlZhWWbgxEWq2 sfq5vg+zFPdYuhumQ+UzYprVQvooxF5YbUruV1atP3Y1wOpuuMOgCH1kAx35/2W39MEyrH9FK1x UP/oPR5Lbj10A/P+ITpZfsUGL3tAkJAgVXcNzpEE8dLWFmHz2UTaIi9gpheVAgxJotFXzrzS5S6 DYZz+DNmYbmysjoA5l2Y+E7SxdqBkSEw59P/xshPGiyXtYi9K6bVsYTK42IFIT2C6z67Rr3tyji dv5/+1oXvw4UuuB37gcsWDjeI3lIOySlEGC7I5UcZoP5WEkX9D0bWWwd9jG8YUSbunevXTcPcZi 5XOfZcgF2w4MUsnKx3A== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-17_01,2026-04-17_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 spamscore=0 phishscore=0 suspectscore=0 malwarescore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604070000 definitions=main-2604170141 On Fri, Apr 17, 2026 at 04:19:14PM +0300, Dmitry Baryshkov wrote: > On Thu, Apr 16, 2026 at 11:26:52PM +0800, Shawn Guo wrote: > > The qcom_smmu_actlr_client_of_match table used "qcom,fastrpc" as the > > compatible to configure ACTLR for fastrpc SMMU clients. However, the > > "qcom,fastrpc" compatible identifies the fastrpc transport (glink) > > device, which does not have an iommus property and thus never attaches > > to the SMMU directly. > > > > The actual SMMU clients are the per-channel compute context bank (CB) > > devices, which use the "qcom,fastrpc-compute-cb" compatible and each > > carry their own iommus property. Replace the compatible string so that > > ACTLR prefetch and caching settings are applied to the right devices. > > > > Fixes: 3e35c3e725de ("iommu/arm-smmu: Add ACTLR data and support for qcom_smmu_500") > > Signed-off-by: Shawn Guo > > https://lore.kernel.org/r/20260408130825.3268733-1-bibek.patro@oss.qualcomm.com Ah, thanks Dmitry! I should have searched the list first. Shawn