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

yf.wang at mediatek.com yf.wang at mediatek.com
Mon May 16 07:12:02 PDT 2022


On Sat, 2022-05-14 at 10:09 +0800, Yong Wu wrote:
> 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.

Hi Yong,

There is no DMA32 zone in some mediatek smartphone chip.

Thanks,
Yunfei.



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