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Message-ID: <eb567d23-b63b-a10a-d0b1-c03281a1f602@amd.com>
Date: Wed, 11 Nov 2020 10:10:06 +0700
From: Suravee Suthikulpanit <suravee.suthikulpanit@....com>
To: linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org
Cc: joro@...tes.org, robin.murphy@....com
Subject: Re: [PATCH v3 00/14] iommu/amd: Add Generic IO Page Table Framework
Support
Hi Joerg,
Do you have any update on this series?
Thanks,
Suravee
On 11/2/20 10:16 AM, Suravee Suthikulpanit wrote:
> Joerg,
>
> You mentioned to remind you to pull this in to linux-next.
>
> Thanks,
> Suravee
>
> On 10/4/20 8:45 AM, Suravee Suthikulpanit wrote:
>> The framework allows callable implementation of IO page table.
>> This allows AMD IOMMU driver to switch between different types
>> of AMD IOMMU page tables (e.g. v1 vs. v2).
>>
>> This series refactors the current implementation of AMD IOMMU v1 page table
>> to adopt the framework. There should be no functional change.
>> Subsequent series will introduce support for the AMD IOMMU v2 page table.
>>
>> Thanks,
>> Suravee
>>
>> Change from V2 (https://lore.kernel.org/lkml/835c0d46-ed96-9fbe-856a-777dcffac967@amd.com/T/#t)
>> - Patch 2/14: Introduce helper function io_pgtable_cfg_to_data.
>> - Patch 13/14: Put back the struct iommu_flush_ops since patch v2 would run into
>> NULL pointer bug when calling free_io_pgtable_ops if not defined.
>>
>> Change from V1 (https://lkml.org/lkml/2020/9/23/251)
>> - Do not specify struct io_pgtable_cfg.coherent_walk, since it is
>> not currently used. (per Robin)
>> - Remove unused struct iommu_flush_ops. (patch 2/13)
>> - Move amd_iommu_setup_io_pgtable_ops to iommu.c instead of io_pgtable.c
>> patch 13/13)
>>
>> Suravee Suthikulpanit (14):
>> iommu/amd: Re-define amd_iommu_domain_encode_pgtable as inline
>> iommu/amd: Prepare for generic IO page table framework
>> iommu/amd: Move pt_root to to struct amd_io_pgtable
>> iommu/amd: Convert to using amd_io_pgtable
>> iommu/amd: Declare functions as extern
>> iommu/amd: Move IO page table related functions
>> iommu/amd: Restructure code for freeing page table
>> iommu/amd: Remove amd_iommu_domain_get_pgtable
>> iommu/amd: Rename variables to be consistent with struct
>> io_pgtable_ops
>> iommu/amd: Refactor fetch_pte to use struct amd_io_pgtable
>> iommu/amd: Introduce iommu_v1_iova_to_phys
>> iommu/amd: Introduce iommu_v1_map_page and iommu_v1_unmap_page
>> iommu/amd: Introduce IOMMU flush callbacks
>> iommu/amd: Adopt IO page table framework
>>
>> drivers/iommu/amd/Kconfig | 1 +
>> drivers/iommu/amd/Makefile | 2 +-
>> drivers/iommu/amd/amd_iommu.h | 22 +
>> drivers/iommu/amd/amd_iommu_types.h | 43 +-
>> drivers/iommu/amd/io_pgtable.c | 564 ++++++++++++++++++++++++
>> drivers/iommu/amd/iommu.c | 646 +++-------------------------
>> drivers/iommu/io-pgtable.c | 3 +
>> include/linux/io-pgtable.h | 2 +
>> 8 files changed, 691 insertions(+), 592 deletions(-)
>> create mode 100644 drivers/iommu/amd/io_pgtable.c
>>
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