Re: [PATCH v4 07/14] drm/panthor: Add the MMU/VM logical block

2024-02-10 Thread Boris Brezillon
Hi Steve, On Fri, 9 Feb 2024 16:51:46 + Steven Price wrote: > On 22/01/2024 16:30, Boris Brezillon wrote: > > MMU and VM management is related and placed in the same source file. > > > > Page table updates are delegated to the io-pgtable-arm driver that's in > > the iommu subsystem. > > >

Re: [PATCH v4 07/14] drm/panthor: Add the MMU/VM logical block

2024-02-09 Thread Steven Price
On 22/01/2024 16:30, Boris Brezillon wrote: > MMU and VM management is related and placed in the same source file. > > Page table updates are delegated to the io-pgtable-arm driver that's in > the iommu subsystem. > > The VM management logic is based on drm_gpuva_mgr, and is assuming the > VA spa

[PATCH v4 07/14] drm/panthor: Add the MMU/VM logical block

2024-01-22 Thread Boris Brezillon
MMU and VM management is related and placed in the same source file. Page table updates are delegated to the io-pgtable-arm driver that's in the iommu subsystem. The VM management logic is based on drm_gpuva_mgr, and is assuming the VA space is mostly managed by the usermode driver, except for a