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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b9cae5cc52sm137977745ad.78.2026.05.05.03.54.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 05 May 2026 03:54:55 -0700 (PDT) Message-ID: <96daa0ee-4cbb-4472-ab3a-19ee32b4758f@oss.qualcomm.com> Date: Tue, 5 May 2026 16:24:51 +0530 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] iommu/arm-smmu-qcom: Add glymur MDSS to ACTLR client table To: Lokanadha M R , Rob Clark , Will Deacon , Robin Murphy , Joerg Roedel Cc: iommu@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260428-add_glymur_mdss_compatible-v1-1-8416df5a26f4@oss.qualcomm.com> Content-Language: en-US From: Pankaj Patil In-Reply-To: <20260428-add_glymur_mdss_compatible-v1-1-8416df5a26f4@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: LhPVATBV6QRTGD_RbtsYazgNdczZkv0B X-Authority-Analysis: v=2.4 cv=Z+vc2nRA c=1 sm=1 tr=0 ts=69f9cc81 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=wtB1UJvddPmpPx-NcbYA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: LhPVATBV6QRTGD_RbtsYazgNdczZkv0B X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA1MDEwMiBTYWx0ZWRfX7UMhjExzcPG+ YxJhefJU54hzu2e55IlwD7YM3+hy5k3m54adougN02yxugzaRBxok6NBlJKYKepC7EPLXW5lRiy 3uFHSwHwJFNvp7C/cEp+hKdeqM7Wn+K5pJUXyeFgWEl4q0R2HKhacrrwWrtPrE4V2oTXW79uRHw FK4RFhuIF/A6yhWXBJNtNsFURjd26fsrzWaIgRkHpLYVp9ggYDYc3MtpcXpy69VQ5++IPxu9o9+ 1rtixHw1MYNHuXAL97+4o2NCqs18wX9QtyolcUbIqIAgwSR5AZrF/9AIMZj0F1CPs/ir8xHmRH6 8fmKtt2gIOKQkEVMXIHHp6dTAIIjeSSyxljVWBWvVUkNzkiNCjsbDsg11HGZJktPYkRl7Lxj2ep WQ23YzjR+YbERfT1ktgolhKibmnbgg3dDxbTedyojH95I5tdaugf09hSkSe7ql5MLtKmYp3lUbj extVhB8Po3ucINIOLAQ== 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=2026-05-05_02,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 phishscore=0 adultscore=0 impostorscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605050102 On 4/28/2026 3:13 PM, Lokanadha M R wrote: > Add qcom,glymur-mdss to the qcom_smmu_actlr_client_of_match[] > table to configure the SMMU-500 context bank for the display > subsystem (MDSS) on the Glymur platform. > > The settings disable the next-page prefetcher while keeping > macro TLB caching enabled. Without this entry, > qcom_smmu_set_actlr_dev() finds no match for the glymur MDSS > device and leaves the context bank ACTLR at its reset value. > > Signed-off-by: Lokanadha M R > --- > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > index edd41b5a3b6a..6df48499a4b2 100644 > --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > @@ -41,6 +41,8 @@ static const struct of_device_id qcom_smmu_actlr_client_of_match[] = { > .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, > { .compatible = "qcom,fastrpc", > .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, > + { .compatible = "qcom,glymur-mdss", > + .data = (const void *) (PREFETCH_DEFAULT | CMTLB) }, > { .compatible = "qcom,qcm2290-mdss", > .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, > { .compatible = "qcom,sa8775p-mdss", > > --- > base-commit: 7080e32d3f09d8688c4a87d81bdcc71f7f606b16 > change-id: 20260428-add_glymur_mdss_compatible-44f5b2837498 > > Best regards, > -- > Lokanadha M R > > Reviewed-by: Pankaj Patil