Re: [PATCH v7 20/21] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode

2019-06-20 Thread Yong Wu
On Tue, 2019-06-18 at 18:35 +0200, Matthias Brugger wrote: > > On 10/06/2019 14:17, Yong Wu wrote: > > In the 4GB mode, the physical address is remapped, > > > > Here is the detailed remap relationship. > > CPU PA ->HW PA > > 0x4000_ 0x1_4000_ (Add bit32) > > 0x8000_0

Re: [PATCH v7 20/21] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode

2019-06-18 Thread Matthias Brugger
On 10/06/2019 14:17, Yong Wu wrote: > In the 4GB mode, the physical address is remapped, > > Here is the detailed remap relationship. > CPU PA ->HW PA > 0x4000_ 0x1_4000_ (Add bit32) > 0x8000_ 0x1_8000_ ... > 0xc000_ 0x1_c000_ ... >

[PATCH v7 20/21] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode

2019-06-10 Thread Yong Wu
In the 4GB mode, the physical address is remapped, Here is the detailed remap relationship. CPU PA ->HW PA 0x4000_ 0x1_4000_ (Add bit32) 0x8000_ 0x1_8000_ ... 0xc000_ 0x1_c000_ ... 0x1__0x1__ (No change) Thus,