Re: [PATCH v4 5/7] iommu/mediatek: Add sub_comm id in translation fault

2020-06-18 Thread chao hao
On Wed, 2020-06-17 at 19:11 +0800, Yong Wu wrote: > Hi Matthias, > > Thanks very much for your review. > > On Wed, 2020-06-17 at 11:17 +0200, Matthias Brugger wrote: > > > > On 17/06/2020 05:00, Chao Hao wrote: > > > The max larb number that a iommu HW support is 8(larb0~larb7 in the below > > >

Re: [PATCH v4 5/7] iommu/mediatek: Add sub_comm id in translation fault

2020-06-17 Thread Yong Wu
Hi Matthias, Thanks very much for your review. On Wed, 2020-06-17 at 11:17 +0200, Matthias Brugger wrote: > > On 17/06/2020 05:00, Chao Hao wrote: > > The max larb number that a iommu HW support is 8(larb0~larb7 in the below > > diagram). > > If the larb's number is over 8, we use a sub_common f

Re: [PATCH v4 5/7] iommu/mediatek: Add sub_comm id in translation fault

2020-06-17 Thread Matthias Brugger
On 17/06/2020 05:00, Chao Hao wrote: > The max larb number that a iommu HW support is 8(larb0~larb7 in the below > diagram). > If the larb's number is over 8, we use a sub_common for merging > several larbs into one larb. At this case, we will extend larb_id: > bit[11:9] means common-id; > bit[8