[v10,0/5] NVIDIA ARM SMMU Implementation

Message

Krishna Reddy July 8, 2020, 5 a.m. UTC

Changes in v10:
Perform SMMU base ioremap before calling implementation init.
Check for Global faults across both ARM MMU-500s during global interrupt.
Check for context faults across all contexts of both ARM MMU-500s during context fault interrupt.
Add new DT binding nvidia,smmu-500 for NVIDIA implementation.

v9 - https://lkml.org/lkml/2020/6/30/1282
v8 - https://lkml.org/lkml/2020/6/29/2385
v7 - https://lkml.org/lkml/2020/6/28/347
v6 - https://lkml.org/lkml/2020/6/4/1018
v5 - https://lkml.org/lkml/2020/5/21/1114
v4 - https://lkml.org/lkml/2019/10/30/1054
v3 - https://lkml.org/lkml/2019/10/18/1601
v2 - https://lkml.org/lkml/2019/9/2/980
v1 - https://lkml.org/lkml/2019/8/29/1588


Krishna Reddy (5):
  iommu/arm-smmu: move TLB timeout and spin count macros
  iommu/arm-smmu: ioremap smmu mmio region before implementation init
  iommu/arm-smmu: add NVIDIA implementation for ARM MMU-500 usage
  dt-bindings: arm-smmu: add binding for Tegra194 SMMU
  iommu/arm-smmu: Add global/context fault implementation hooks

 .../devicetree/bindings/iommu/arm,smmu.yaml   |  18 ++
 MAINTAINERS                                   |   2 +
 drivers/iommu/Makefile                        |   2 +-
 drivers/iommu/arm-smmu-impl.c                 |   3 +
 drivers/iommu/arm-smmu-nvidia.c               | 278 ++++++++++++++++++
 drivers/iommu/arm-smmu.c                      |  29 +-
 drivers/iommu/arm-smmu.h                      |   6 +
 7 files changed, 328 insertions(+), 10 deletions(-)
 create mode 100644 drivers/iommu/arm-smmu-nvidia.c


base-commit: e5640f21b63d2a5d3e4e0c4111b2b38e99fe5164

Comments

Will Deacon July 13, 2020, 1:50 p.m. UTC | #1

On Tue, Jul 07, 2020 at 10:00:12PM -0700, Krishna Reddy wrote:
> Changes in v10:
> Perform SMMU base ioremap before calling implementation init.
> Check for Global faults across both ARM MMU-500s during global interrupt.
> Check for context faults across all contexts of both ARM MMU-500s during context fault interrupt.
> Add new DT binding nvidia,smmu-500 for NVIDIA implementation.

Please repost based on my SMMU queue, as this doesn't currently apply.

https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/log/?h=for-joerg/arm-smmu/updates

Will

Will Deacon July 17, 2020, 10:03 a.m. UTC | #2

On Mon, Jul 13, 2020 at 02:50:20PM +0100, Will Deacon wrote:
> On Tue, Jul 07, 2020 at 10:00:12PM -0700, Krishna Reddy wrote:
> > Changes in v10:
> > Perform SMMU base ioremap before calling implementation init.
> > Check for Global faults across both ARM MMU-500s during global interrupt.
> > Check for context faults across all contexts of both ARM MMU-500s during context fault interrupt.
> > Add new DT binding nvidia,smmu-500 for NVIDIA implementation.
> 
> Please repost based on my SMMU queue, as this doesn't currently apply.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/log/?h=for-joerg/arm-smmu/updates

Any update on this, please? It would be a shame to miss 5.9 now that the
patches look alright.

Will

Krishna Reddy July 17, 2020, 10:36 p.m. UTC | #3

>On Mon, Jul 13, 2020 at 02:50:20PM +0100, Will Deacon wrote:
>> On Tue, Jul 07, 2020 at 10:00:12PM -0700, Krishna Reddy wrote:
> >> Changes in v10:
>> > Perform SMMU base ioremap before calling implementation init.
>> > Check for Global faults across both ARM MMU-500s during global interrupt.
>> > Check for context faults across all contexts of both ARM MMU-500s during context fault interrupt.
> >> Add new DT binding nvidia,smmu-500 for NVIDIA implementation.
>>
>> Please repost based on my SMMU queue, as this doesn't currently apply.
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/log/?h=
>> for-joerg/arm-smmu/updates

>Any update on this, please? It would be a shame to miss 5.9 now that the patches look alright.

Thanks for pinging.
I have been out of the office this week. Just started working on reposting patches.

Will