On Thu, 2020-11-26 at 15:19 +, Robin Murphy wrote:
> On 2020-11-20 09:06, Yong Wu wrote:
> > Currently direct_mapping always use the smallest pgsize which is SZ_4K
> > normally to mapping. This is unnecessary. we could gather the size, and
> > call iommu_map then, iommu_map could decide how to
On 2020-11-20 09:06, Yong Wu wrote:
Currently direct_mapping always use the smallest pgsize which is SZ_4K
normally to mapping. This is unnecessary. we could gather the size, and
call iommu_map then, iommu_map could decide how to map better with the
just right pgsize.
From the original
On Wed, Nov 25, 2020 at 07:03:34PM +0800, Yong Wu wrote:
> On Tue, 2020-11-24 at 11:05 +, Will Deacon wrote:
> > On Tue, Nov 24, 2020 at 05:24:44PM +0800, Yong Wu wrote:
> > > On Mon, 2020-11-23 at 12:32 +, Will Deacon wrote:
> > That said, maybe we could simplify this further by changing
On Tue, 2020-11-24 at 11:05 +, Will Deacon wrote:
> On Tue, Nov 24, 2020 at 05:24:44PM +0800, Yong Wu wrote:
> > On Mon, 2020-11-23 at 12:32 +, Will Deacon wrote:
> > > On Fri, Nov 20, 2020 at 05:06:28PM +0800, Yong Wu wrote:
> > > > + unmapped_sz = 0;
> > > >
On Tue, Nov 24, 2020 at 05:24:44PM +0800, Yong Wu wrote:
> On Mon, 2020-11-23 at 12:32 +, Will Deacon wrote:
> > On Fri, Nov 20, 2020 at 05:06:28PM +0800, Yong Wu wrote:
> > > + unmapped_sz = 0;
> > > + }
> > > + start += pg_size;
> > > +
On Mon, 2020-11-23 at 12:32 +, Will Deacon wrote:
> On Fri, Nov 20, 2020 at 05:06:28PM +0800, Yong Wu wrote:
> > Currently direct_mapping always use the smallest pgsize which is SZ_4K
> > normally to mapping. This is unnecessary. we could gather the size, and
> > call iommu_map then, iommu_map
On Fri, Nov 20, 2020 at 05:06:28PM +0800, Yong Wu wrote:
> Currently direct_mapping always use the smallest pgsize which is SZ_4K
> normally to mapping. This is unnecessary. we could gather the size, and
> call iommu_map then, iommu_map could decide how to map better with the
> just right pgsize.
Currently direct_mapping always use the smallest pgsize which is SZ_4K
normally to mapping. This is unnecessary. we could gather the size, and
call iommu_map then, iommu_map could decide how to map better with the
just right pgsize.
>From the original comment, we should take care overlap,
