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Message-ID: <ec4b7dfa-6fcf-4ccc-8857-d99573349599@linaro.org>
Date:   Mon, 27 Nov 2023 16:35:12 +0100
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Subject: Re: [PATCH v3 3/4] iommu/arm-smmu: add ACTLR data and support for
 SC7280
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To:     Bibek Kumar Patro <quic_bibekkum@quicinc.com>, will@kernel.org,
        robin.murphy@arm.com, joro@8bytes.org, dmitry.baryshkov@linaro.org,
        a39.skl@gmail.com, quic_bjorande@quicinc.com, mani@kernel.org,
        quic_eberman@quicinc.com, robdclark@chromium.org,
        u.kleine-koenig@pengutronix.de, robh@kernel.org,
        vladimir.oltean@nxp.com, quic_pkondeti@quicinc.com,
        quic_molvera@quicinc.com
Cc:     linux-arm-msm@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
        linux-kernel@vger.kernel.org, qipl.kernel.upstream@quicinc.com
References: <20231127145412.3981-1-quic_bibekkum@quicinc.com>
 <20231127145412.3981-4-quic_bibekkum@quicinc.com>
From:   Konrad Dybcio <konrad.dybcio@linaro.org>
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In-Reply-To: <20231127145412.3981-4-quic_bibekkum@quicinc.com>
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On 27.11.2023 15:54, Bibek Kumar Patro wrote:
> Add ACTLR data table for SC7280 along with support for
> same including SC7280 specific implementation operations.
> 
> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com>
> ---
>  drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 25 +++++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> index 247eaa194129..f0ad09f9a974 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> @@ -27,6 +27,20 @@ struct actlr_config {
>  #define CPRE			BIT(1)		/* Enable context caching in the prefetch buffer */
>  #define CMTLB			BIT(0)		/* Enable context caching in the macro TLB */
> 
> +static const struct actlr_config sc7280_apps_actlr_cfg[] = {
> +	{ 0x0800, 0x24E1, PREFETCH_DISABLE | CMTLB },
hex should be lowercase

> +	{ 0x2000, 0x0163, PREFETCH_DISABLE | CMTLB },
> +	{ 0x2080, 0x0461, PREFETCH_DISABLE | CMTLB },
> +	{ 0x2100, 0x0161, PREFETCH_DISABLE | CMTLB },
> +	{ 0x0900, 0x0407, PREFETCH_SHALLOW | CPRE | CMTLB },
> +	{ 0x2180, 0x0027, PREFETCH_SHALLOW | CPRE | CMTLB },
> +	{ 0x1000, 0x07ff, PREFETCH_DEEP | CPRE | CMTLB },
> +};
Any reason this list is so much smaller than 8550's? Is it complete?

Konrad