Re: [PATCH v2 0/3] iommu/arm-smmu: introduction of ACTLR implementation for Qualcomm SoCs

From: Dmitry Baryshkov
Date: Tue Nov 14 2023 - 09:06:32 EST


On Tue, 14 Nov 2023 at 15:57, Bibek Kumar Patro
<quic_bibekkum@xxxxxxxxxxx> wrote:
>
> This patch series consists of three parts and covers the following:
>
> 1. Introducing intital set of driver changes to implement ACTLR register
> for custom prefetcher settings in Qualcomm SoCs.
>
> 2. Adding ACTLR data and implementation operations for SM8550.
>
> 3. Re-enabling context caching for Qualcomm SoCs to retain prefetcher
> settings during reset and runtime suspend.
>
> Changes in v2 from v1:
> - Incorporated suggestions on v1 from Dmitry,Konrad,Pratyush.

Which suggestions? This doesn't tell anything.

> - Added defines for ACTLR values.
> - Linked sm8550 implementation structure to corresponding
> compatible string.
> - Repackaged actlr value set implementation to separate function.
> - Fixed indentation errors.
> - Link to v1: https://lore.kernel.org/all/20231103215124.1095-1-quic_bibekkum@xxxxxxxxxxx/
>
> Changes in v1 from RFC:
> - Incorporated suggestion form Robin on RFC.
> - Moved the actlr data table into driver, instead of maintaining
> it inside soc specific DT and piggybacking on exisiting iommus
> property (iommu = <SID, MASK, ACTLR>) to set this value during
> smmu probe.
> - Link to RFC: //lore.kernel.org/all/a01e7e60-6ead-4a9e-ba90-22a8a6bbd03f@xxxxxxxxxxx/
>
> Bibek Kumar Patro (3):
> iommu/arm-smmu: introduction of ACTLR for custom prefetcher settings
> iommu/arm-smmu: add ACTLR data and support for SM8550
> iommu/arm-smmu: re-enable context caching in smmu reset operation
>
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 156 ++++++++++++++++++++-
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h | 2 +
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 5 +-
> drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +
> 4 files changed, 159 insertions(+), 9 deletions(-)
>
> --
> 2.17.1
>


--
With best wishes
Dmitry