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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231114135654.30475-1-quic_bibekkum@quicinc.com>
Date:   Tue, 14 Nov 2023 19:26:51 +0530
From:   Bibek Kumar Patro <quic_bibekkum@...cinc.com>
To:     <will@...nel.org>, <robin.murphy@....com>, <joro@...tes.org>,
        <dmitry.baryshkov@...aro.org>, <a39.skl@...il.com>,
        <konrad.dybcio@...aro.org>, <quic_pkondeti@...cinc.com>,
        <quic_molvera@...cinc.com>
CC:     <linux-arm-msm@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <iommu@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>, <qipl.kernel.upstream@...cinc.com>,
        Bibek Kumar Patro <quic_bibekkum@...cinc.com>
Subject: [PATCH v2 0/3] iommu/arm-smmu: introduction of ACTLR implementation for Qualcomm SoCs

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.
 - 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@quicinc.com/

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@...cinc.com/

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