| 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
| ||
|
Message-Id: <20200803193547.305660-1-jcrouse@codeaurora.org>
Date: Mon, 3 Aug 2020 13:35:35 -0600
From: Jordan Crouse <jcrouse@...eaurora.org>
To: linux-arm-msm@...r.kernel.org
Cc: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
Robin Murphy <robin.murphy@....com>,
Will Deacon <will@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
freedreno@...ts.freedesktop.org, iommu@...ts.linux-foundation.org,
Akhil P Oommen <akhilpo@...eaurora.org>,
Andy Gross <agross@...nel.org>,
AngeloGioacchino Del Regno <kholk11@...il.com>,
Ben Dooks <ben.dooks@...ethink.co.uk>,
Brian Masney <masneyb@...tation.org>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>,
Emil Velikov <emil.velikov@...labora.com>,
Eric Anholt <eric@...olt.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Hanna Hawa <hannah@...vell.com>,
Joerg Roedel <joro@...tes.org>,
Jon Hunter <jonathanh@...dia.com>,
Jonathan Marek <jonathan@...ek.ca>,
Krishna Reddy <vdumpa@...dia.com>,
Nicolin Chen <nicoleotsuka@...il.com>,
Pritesh Raithatha <praithatha@...dia.com>,
Rob Clark <robdclark@...il.com>,
Rob Herring <robh+dt@...nel.org>, Sean Paul <sean@...rly.run>,
Sharat Masetty <smasetty@...eaurora.org>,
Shawn Guo <shawn.guo@...aro.org>,
Sibi Sankar <sibis@...eaurora.org>,
Stephen Boyd <swboyd@...omium.org>,
Thierry Reding <thierry.reding@...il.com>,
Thierry Reding <treding@...dia.com>,
Vivek Gautam <vivek.gautam@...eaurora.org>,
Wambui Karuga <wambui.karugax@...il.com>,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v11 00/12] iommu/arm-smmu: Add Adreno SMMU specific implementation
This series adds an Adreno SMMU implementation to arm-smmu to allow GPU hardware
pagetable switching.
The Adreno GPU has built in capabilities to switch the TTBR0 pagetable during
runtime to allow each individual instance or application to have its own
pagetable. In order to take advantage of the HW capabilities there are certain
requirements needed of the SMMU hardware.
This series adds support for an Adreno specific arm-smmu implementation. The new
implementation 1) ensures that the GPU domain is always assigned context bank 0,
2) enables split pagetable support (TTBR1) so that the instance specific
pagetable can be swapped while the global memory remains in place and 3) shares
the current pagetable configuration with the GPU driver to allow it to create
its own io-pgtable instances.
The series then adds the drm/msm code to enable these features. For targets that
support it allocate new pagetables using the io-pgtable configuration shared by
the arm-smmu driver and swap them in during runtime.
This version of the series merges the previous patchset(s) [1] and [2]
with the following improvements:
v11:
- Add implementation specific get_attr/set_attr functions (per Rob Clark)
- Fix context bank allocation (per Bjorn Andersson)
v10:
- arm-smmu: add implementation hook to allocate context banks
- arm-smmu: Match the GPU domain by stream ID instead of compatible string
- arm-smmu: Make DOMAIN_ATTR_PGTABLE_CFG bi-directional. The leaf driver
queries the configuration to create a pagetable and then sends the newly
created configuration back to the smmu-driver to enable TTBR0
- drm/msm: Add context reference counting for submissions
- drm/msm: Use dummy functions to skip TLB operations on per-instance
pagetables
[1] https://lists.linuxfoundation.org/pipermail/iommu/2020-June/045653.html
[2] https://lists.linuxfoundation.org/pipermail/iommu/2020-June/045659.html
Jordan Crouse (12):
iommu/arm-smmu: Pass io-pgtable config to implementation specific
function
iommu/arm-smmu: Add support for split pagetables
iommu/arm-smmu: Prepare for the adreno-smmu implementation
iommu: Add a domain attribute to get/set a pagetable configuration
iommu/arm-smmu-qcom: Add implementation for the adreno GPU SMMU
dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU
drm/msm: Add a context pointer to the submitqueue
drm/msm: Set the global virtual address range from the IOMMU domain
drm/msm: Add support to create a local pagetable
drm/msm: Add support for private address space instances
drm/msm/a6xx: Add support for per-instance pagetables
arm: dts: qcom: sm845: Set the compatible string for the GPU SMMU
.../devicetree/bindings/iommu/arm,smmu.yaml | 4 +
arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 12 +-
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 58 ++++-
drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 1 +
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 18 +-
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 3 +-
drivers/gpu/drm/msm/msm_drv.c | 16 +-
drivers/gpu/drm/msm/msm_drv.h | 13 ++
drivers/gpu/drm/msm/msm_gem.h | 1 +
drivers/gpu/drm/msm/msm_gem_submit.c | 8 +-
drivers/gpu/drm/msm/msm_gem_vma.c | 9 +
drivers/gpu/drm/msm/msm_gpu.c | 26 ++-
drivers/gpu/drm/msm/msm_gpu.h | 12 +-
drivers/gpu/drm/msm/msm_gpummu.c | 2 +-
drivers/gpu/drm/msm/msm_iommu.c | 198 +++++++++++++++++-
drivers/gpu/drm/msm/msm_mmu.h | 16 +-
drivers/gpu/drm/msm/msm_ringbuffer.h | 1 +
drivers/gpu/drm/msm/msm_submitqueue.c | 8 +-
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 6 +-
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 156 +++++++++++++-
drivers/iommu/arm/arm-smmu/arm-smmu.c | 113 +++++-----
drivers/iommu/arm/arm-smmu/arm-smmu.h | 82 +++++++-
include/linux/iommu.h | 1 +
24 files changed, 653 insertions(+), 113 deletions(-)
--
2.25.1
Powered by blists - more mailing lists