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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-834dae00a4fsm2168428b3a.5.2026.04.28.02.44.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Apr 2026 02:44:15 -0700 (PDT) From: Lokanadha M R Date: Tue, 28 Apr 2026 15:13:50 +0530 Subject: [PATCH] iommu/arm-smmu-qcom: Add glymur MDSS to ACTLR client table 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="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260428-add_glymur_mdss_compatible-v1-1-8416df5a26f4@oss.qualcomm.com> X-B4-Tracking: v=1; b=H4sIAFWB8GkC/yXMSw6CMBAA0KuQWdsEa4HqVYhp+hlwDAXSAaMh3 N2iy7d5GzAmQoZbsUHCFzFNY8b5VIB/2LFHQSEbZCnrUkktbAimHz5xTSYGZuOnONuF3IBCqa5 yUl8addWQgzlhR+9f3t7/5tU90S/HCPv+BWQcG/1+AAAA X-Change-ID: 20260428-add_glymur_mdss_compatible-44f5b2837498 To: 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, Lokanadha M R X-Mailer: b4 0.16-dev-d5d98 X-Developer-Signature: v=1; a=ed25519-sha256; t=1777369452; l=1484; i=lokanadha.r@oss.qualcomm.com; s=20260428; h=from:subject:message-id; bh=E5Fp9SeBlxlY5LkEyncq8DbWiaXUn9TX29qYsqFaHc4=; b=GxReak954ZzGmZqlgnafc5bl4MSkvrNHTmLT2Ber8YUDsqdVq8fCPAkZMk2YDZwaMCMRXg7+B UyP4R6kL3t1CAtinzijNaV/C076Tk8T76b1SZZ6d+NduSyoDzGzxch7 X-Developer-Key: i=lokanadha.r@oss.qualcomm.com; a=ed25519; pk=PfwARBW5uLDUvebYCDLNkw3HD4g2b3T0VDrb1uc1Rxc= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDI4MDA4NCBTYWx0ZWRfX6Zmm3fbu8MWr MAVzrz8zjHt/dYTTumnfkUxhSbktCb+mMpsGzF6meAwSlj1Aw92Gcs7s4chW1yBllq97gGa2+er EtbK8VjDX4yCSvv/0S+w0j7kNOTGFt3GK0aNM9VFGchbJiB8NueePwBbEsXOehtbQOAyySBTY03 wxsucRDnWJNpSAwdocPRp0y/FdAFxseaZYzPuD/RBWSet+NtjOLSe/i0WbeVS3TXJd1Dd5bkUgN WlEzMuvZXSz+vWrwyNIB/lelp0LqvswQ4TSYQeIIAngUUAN3bsxD9j3kF4mUooF2Q31DgamAzBJ qV2LcGcoJqE2erywGNYM/nnFj8Fyql6tczfJUCFJ8ZCTWnAlFj9Rn5Gjfd+3annIPrRyRzTukZh 5qFQ0nRF2FxSIE73C7+/s/jnVseFpiODCA1z92B85QTb97WRasncLRmMjGR9jJT458aBEScRHXk 7+8tb8oYUkXS13RLREg== X-Proofpoint-ORIG-GUID: MAFqCSEYvsxALtQVZEVb4-pGDknEbRVY X-Authority-Analysis: v=2.4 cv=AJEsYPsu c=1 sm=1 tr=0 ts=69f08170 cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=X4sqO_BnIXgP0qhT90oA:9 a=QEXdDO2ut3YA:10 a=zc0IvFSfCIW2DFIPzwfm:22 X-Proofpoint-GUID: MAFqCSEYvsxALtQVZEVb4-pGDknEbRVY 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=2026-04-28_02,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 clxscore=1011 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604280084 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 Reviewed-by: Dmitry Baryshkov Reviewed-by: Pankaj Patil --- 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_o= f_match[] =3D { .data =3D (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, { .compatible =3D "qcom,fastrpc", .data =3D (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, + { .compatible =3D "qcom,glymur-mdss", + .data =3D (const void *) (PREFETCH_DEFAULT | CMTLB) }, { .compatible =3D "qcom,qcm2290-mdss", .data =3D (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, { .compatible =3D "qcom,sa8775p-mdss", --- base-commit: 7080e32d3f09d8688c4a87d81bdcc71f7f606b16 change-id: 20260428-add_glymur_mdss_compatible-44f5b2837498 Best regards, -- =20 Lokanadha M R