# Re: \[PATCH 7/9\] powerpc/powernv: Add platform support for stop instruction

- From: Michael Neuling \<hidden\>
- Date: 2016-05-03 05:25:53 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2016/05/4744203
- Thread: https://ratatoskr.run/linuxppc-dev/2016/04/4735385/t.md

```text

> diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/a=
sm/cputable.h
> index df4fb5f..a4739a1 100644
> --- a/arch/powerpc/include/asm/cputable.h
> +++ b/arch/powerpc/include/asm/cputable.h
> @@ -205,6 +205,7 @@ enum {
> =C2=A0#define CPU_FTR_DABRX			LONG_ASM_CONST(0x0800000000000000)
> =C2=A0#define CPU_FTR_PMAO_BUG		LONG_ASM_CONST(0x1000000000000000)
> =C2=A0#define CPU_FTR_SUBCORE			LONG_ASM_CONST(0x2000000000000000)
> +#define CPU_FTR_STOP_INST		LONG_ASM_CONST(0x4000000000000000)

In general, we are putting all the POWER9 features under=C2=A0CPU_FTR_ARCH_=
300.
Is there a reason you need this separate bit?

CPU_FTR bits are fairly scarce these days.

Mikey
```