On Thu, 2016-06-02 at 07:38 -0500, Shreyas B. Prabhu wrote: > @@ -61,8 +72,13 @@ save_sprs_to_stack: > * Note all register i.e per-core, per-subcore or per-thread is saved > * here since any thread in the core might wake up first > */ > +BEGIN_FTR_SECTION > + mfspr r3,SPRN_PTCR > + std r3,_PTCR(r1) > +FTR_SECTION_ELSE > mfspr r3,SPRN_SDR1 > std r3,_SDR1(r1) > +ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300)
This is the only new SPR we care about in P9 ? Cheers, Ben.