On Mon, Jan 30, 2017 at 7:57 AM, Christian König <deathsim...@vodafone.de> wrote: > Hi Dave and Bas, > > Hi Dave and Bas, > > the following set of patches is a proposal for adding support for partial > resident textures (PRT) to the amdgpu kernel module. > > The basic idea behind PRT support is that you turn of VM fault reporting and > only map parts of a texture into your virtual address space. > > When a shader now tries to sample from a not present page it gets a > notification instead of a VM fault and can react gracefully by switch to a > different LOD for example.
Do we actually need to disable faults? I guess the shader hw probably requires it to get the proper result in the shader? Alex > > On our current available hardware generation you can unfortunately only turn > of VM faults globally, but on future generation you can do this on a per page > basis. So my proposal is to have a consistent interface over all generations > with a per mapping PRT flag, but enable/disable it globally on current > hardware when the first/last mapping is made/destroyed. > > An open problem with the proposal is that we don't know when or if we want to > add the userspace implementation into radeonsi. > > So price question could you guys use this for radv as well? Or is it > sufficient to just write an unit test for it? > > Best regards, > Christian. > > _______________________________________________ > amd-gfx mailing list > amd-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
