[RFC] powerpc: e6500 optimised copy_to_user/copy_from_user

2015-03-12 Thread Kim Phillips
This mimics commit a66086b8197da8dc83b698642d5947ff850e708d powerpc: POWER7 optimised copy_to_user/copy_from_user using VMX, but for the e6500, or BOOK3S_64. Changes have been made for the smaller cacheline size (64 bytes on e6500), and data cache block touch (dcbt) instructions have been

Re: [RFC] powerpc: e6500 optimised copy_to_user/copy_from_user

2015-03-12 Thread Michael Ellerman
On Thu, 2015-03-12 at 17:45 -0500, Kim Phillips wrote: This mimics commit a66086b8197da8dc83b698642d5947ff850e708d powerpc: POWER7 optimised copy_to_user/copy_from_user using VMX, but for the e6500, or BOOK3S_64. Changes have been made for the smaller cacheline size (64 bytes on e6500), and