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.

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