[PATCH v3 0/2] MediaTek TTBR up to 35bit support

[Yong Wu]

On Thu, 2022-05-12 at 22:45 +0800, yf.wang at mediatek.com wrote:
> This patchset adds MediaTek TTBR up to 35bit support.
> 
> 
> Changes in v3:
> - Add version changes description, there is No new code change in V3.
> 
> Changes in v2:
> - Update patch and commit message
>   - Add Level 1 pgtable PA up to 35bit.

Why add this for lvl1 pgtable? Did you get real problem?

lvl2 pgtable is allocated/freed dynamically, it may be allocated failed
in ZONE_DMA32 when burning test. But the lvl1 pgtable only is allocated
once after bootup. I think this is no need for lvl1 pgtable.

>   - This is new feature, remove stable at vger.kernel.org
>   - Update commit message.
> 
> Ning Li (2):
>   iommu/io-pgtable-arm-v7s: Add a quirk to allow pgtable PA up to
> 35bit
>   iomm/mediatek: Allow page table PA up to 35bit
> 
>  drivers/iommu/io-pgtable-arm-v7s.c | 56 ++++++++++++++++++++++----
> ----
>  drivers/iommu/mtk_iommu.c          | 29 +++++++++++++---
>  include/linux/io-pgtable.h         | 15 +++++---
>  3 files changed, 77 insertions(+), 23 deletions(-)
> 
>