From: Charan Teja Kalla <charan.kalla@oss.qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: konrad.dybcio@oss.qualcomm.com, robin.clark@oss.qualcomm.com,
will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
iommu@lists.linux.dev, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V3] iommu/arm-smmu: add actlr settings for mdss on Qualcomm platforms
Date: Wed, 26 Nov 2025 17:06:54 +0530 [thread overview]
Message-ID: <81cdefa8-9bc9-4fb3-ac7f-afb34f70e8de@oss.qualcomm.com> (raw)
In-Reply-To: <6zyysrrq6mt447s6rg5sk5vy5w7ulzub4u5m24xw3xo7edguwu@73vtynhdp7nx>
On 11/26/2025 7:21 AM, Dmitry Baryshkov wrote:
>> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
>> index c21a401c71eb..ead1a59d40ae 100644
>> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
>> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
>> @@ -41,12 +41,34 @@ 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) },
> sc8280xp? sm6115? sdm845? sdm660, msm8998?
8280 and 6115 is slipped....will update in next revision.
This Prefetch feature is not implemented for all the platforms, I
captured only to those that are implemented(to the best of my knowledge)
-- I will put this in commit message.
Thanks,
Charan
prev parent reply other threads:[~2025-11-26 11:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-24 17:10 Charan Teja Kalla
2025-11-26 1:51 ` Dmitry Baryshkov
2025-11-26 11:36 ` Charan Teja Kalla [this message]
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