From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Bibek Kumar Patro <quic_bibekkum@quicinc.com>
Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
konrad.dybcio@linaro.org, jsnitsel@redhat.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, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 3/5] iommu/arm-smmu: introduction of ACTLR for custom prefetcher settings
Date: Fri, 9 Feb 2024 12:53:10 +0200 [thread overview]
Message-ID: <CAA8EJpr3S1hGSjeBx+vhZZHq0OpyULCmyxasUzF6RGdTvXEBSg@mail.gmail.com> (raw)
In-Reply-To: <20240123144543.9405-4-quic_bibekkum@quicinc.com>
On Tue, 23 Jan 2024 at 16:46, Bibek Kumar Patro
<quic_bibekkum@quicinc.com> wrote:
>
> Currently in Qualcomm SoCs the default prefetch is set to 1 which allows
> the TLB to fetch just the next page table. MMU-500 features ACTLR
> register which is implementation defined and is used for Qualcomm SoCs
> to have a custom prefetch setting enabling TLB to prefetch the next set
> of page tables accordingly allowing for faster translations.
>
> ACTLR value is unique for each SMR (Stream matching register) and stored
> in a pre-populated table. This value is set to the register during
> context bank initialisation.
>
> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com>
> ---
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 61 ++++++++++++++++++++++
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h | 16 +++++-
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 5 +-
> drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 ++
> 4 files changed, 84 insertions(+), 3 deletions(-)
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
--
With best wishes
Dmitry
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next prev parent reply other threads:[~2024-02-09 10:53 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-23 14:45 [PATCH v9 0/5] iommu/arm-smmu: introduction of ACTLR implementation for Qualcomm SoCs Bibek Kumar Patro
2024-01-23 14:45 ` [PATCH v9 1/5] iommu/arm-smmu: re-enable context caching in smmu reset operation Bibek Kumar Patro
2024-01-23 14:45 ` [PATCH v9 2/5] iommu/arm-smmu: refactor qcom_smmu structure to include single pointer Bibek Kumar Patro
2024-01-23 14:45 ` [PATCH v9 3/5] iommu/arm-smmu: introduction of ACTLR for custom prefetcher settings Bibek Kumar Patro
2024-02-09 9:55 ` Bibek Kumar Patro
2024-02-09 10:53 ` Dmitry Baryshkov [this message]
2024-04-30 19:00 ` Rob Clark
2024-05-10 12:52 ` Bibek Kumar Patro
2024-05-10 13:02 ` Konrad Dybcio
2024-05-15 13:59 ` Bibek Kumar Patro
2024-05-28 12:59 ` Konrad Dybcio
2024-05-28 13:06 ` Dmitry Baryshkov
2024-05-28 16:08 ` Rob Clark
2024-05-28 16:09 ` Dmitry Baryshkov
2024-05-30 9:21 ` Bibek Kumar Patro
2024-05-30 11:18 ` Dmitry Baryshkov
2024-06-04 18:49 ` Rob Clark
2024-06-05 10:52 ` Bibek Kumar Patro
2024-06-05 22:13 ` Rob Clark
2024-06-10 10:12 ` Bibek Kumar Patro
2024-05-30 9:21 ` Bibek Kumar Patro
2024-05-30 9:21 ` Bibek Kumar Patro
2024-05-10 19:48 ` Rob Clark
2024-05-15 13:59 ` Bibek Kumar Patro
2024-01-23 14:45 ` [PATCH v9 4/5] iommu/arm-smmu: add ACTLR data and support for SM8550 Bibek Kumar Patro
2024-01-23 18:42 ` Konrad Dybcio
2024-02-13 13:47 ` Will Deacon
2024-02-21 8:55 ` Bibek Kumar Patro
2024-02-21 13:21 ` Will Deacon
2024-03-11 8:42 ` Bibek Kumar Patro
2024-01-23 14:45 ` [PATCH v9 5/5] iommu/arm-smmu: add ACTLR data and support for SC7280 Bibek Kumar Patro
2024-01-23 18:42 ` Konrad Dybcio
2024-04-30 17:59 ` [PATCH v9 0/5] iommu/arm-smmu: introduction of ACTLR implementation for Qualcomm SoCs Dmitry Baryshkov
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