On Sun, Feb 19, 2017 at 03:37:10PM +0530, Aneesh Kumar K.V wrote: > With current kernel, we use the top 4 context for the kernel. Kernel VSIDs > are built > using these top context values and effective segemnt ID. In the following > patches, > we want to increase the max effective address to 512TB. We achieve that by > increasing the effective segments IDs there by increasing virtual address > range. > > We will be switching to a 68bit virtual address in the following patch. But > for > platforms like p4 and p5, which only support a 65 bit va, we want to limit > the > virtual addrress to a 65 bit value. We do that by limiting the context bits > to 16 > instead of 19. That means we will have different max context values on > different > platforms. > > To make this simpler. we move the kernel context to the starting of the range. > > Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> > ---
Acked-by: Balbir Singh <bsinghar...@gmail.com>
