On Mon, 2017-05-29 at 01:53:10 UTC, Michael Ellerman wrote: > We are running low on CPU feature bits, so we only want to use them when > it's really necessary. > > CPU_FTR_SUBCORE is only used in one place, and only in C, so we don't > need it in order to make asm patching work. It can only be set on > "Power8" CPUs, which in practice means POWER8, POWER8E and POWER8NVL. > There are no plans to implement it on future CPUs, but if there ever > were we could retrofit it then. > > Although KVM uses subcores, it never looks at the CPU feature, it either > looks at the ISA level or the threads_per_subcore value. > > So drop the CPU feature and do a PVR check instead. Drop the device tree > "subcore" feature as we no longer support doing anything with it, and we > will drop it from skiboot too. > > Signed-off-by: Michael Ellerman <m...@ellerman.id.au> > Acked-by: Balbir Singh <bsinghar...@gmail.com>
Applied to powerpc fixes. https://git.kernel.org/powerpc/c/0e5e7f5e9700661c3ddd95501743fb cheers
