From: Charan Teja Kalla <charan.kalla@oss.qualcomm.com>
Date: Tue, 9 Dec 2025 05:23:23 +0000 (+0530)
Subject: iommu/arm-smmu-qcom: Add actlr settings for mdss on Qualcomm platforms
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f91879fdf70bdf369906a20a8980284d3ef1558f;p=thirdparty%2Fkernel%2Flinux.git

iommu/arm-smmu-qcom: Add actlr settings for mdss on Qualcomm platforms

Add ACTLR settings for missing MDSS devices on Qualcomm platforms.

These are QoS settings and are specific to per SoC thus different
settings, eg: some have shallow prefetch while others have no
prefetch.

Aswell, this prefetch feature is not implemented for all the
platforms, capturing to those are implemented to the best of my
knowledge.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Charan Teja Kalla <charan.kalla@oss.qualcomm.com>
Signed-off-by: Bibek Kumar Patro <bibek.patro@oss.qualcomm.com>
Signed-off-by: Will Deacon <will@kernel.org>
---

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index 573085349df34..456d5146831e8 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -41,12 +41,38 @@ 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,qcm2290-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
 	{ .compatible = "qcom,sc7280-mdss",
 			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
 	{ .compatible = "qcom,sc7280-venus",
 			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sc8180x-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sc8280xp-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm6115-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm6125-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm6350-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm8150-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm8250-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm8350-mdss",
+			.data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) },
+	{ .compatible = "qcom,sm8450-mdss",
+			.data = (const void *) (PREFETCH_DEFAULT | CMTLB) },
 	{ .compatible = "qcom,sm8550-mdss",
 			.data = (const void *) (PREFETCH_DEFAULT | CMTLB) },
+	{ .compatible = "qcom,sm8650-mdss",
+			.data = (const void *) (PREFETCH_DEFAULT | CMTLB) },
+	{ .compatible = "qcom,sm8750-mdss",
+			.data = (const void *) (PREFETCH_DEFAULT | CMTLB) },
+	{ .compatible = "qcom,x1e80100-mdss",
+			.data = (const void *) (PREFETCH_DEFAULT | CMTLB) },
 	{ }
 };