From: Rahul Lakkireddy <rahul.lakkire...@chelsio.com> Date: Sun, 14 Jan 2018 15:02:03 +0530
> This series of patches speed up reading on-chip memory (EDC and MC) > by using AVX intrinsic instructions when available. > > Patch 1 exports callback to register supported intrinsic instructions > when available. Also rework logic to read EDC and MC. > > Patch 2 adds AVX CPU intrinsic instructions to read EDC and MC > 256-bits at a time. Also fallback to regular 32-bit reads, if AVX is > not available. This violates things on several levels. IO mappings are a special __iomem type because you _CANNOT_ dereference them directly. This means you cannot feed them into normal C dereferences or normal loads or stores. The whole point is that if the layout and format of the __iomem pointer changes, or if some special kind of access is necessary, no driver code needs to change. But if you start adding direct AVX instruction loads and stores of these pointers, things are going to break in the future. Sorry, there is no way I am applying this patch set. Thanks.
