Michael Neuling <mi...@neuling.org> writes:
> Subcores isn't really part of the 2.07 architecture but currently we
> turn it on using the 2.07 feature bit. Subcores is really a POWER8
> specific feature.
>
> This adds a new CPU_FTR bit just for subcores and moves the subcore
> init code over to use this.
>
Reviewed-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
> Signed-off-by: Michael Neuling <mi...@neuling.org>
> ---
> arch/powerpc/include/asm/cputable.h | 3 ++-
> arch/powerpc/platforms/powernv/subcore.c | 2 +-
> 2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/cputable.h
> b/arch/powerpc/include/asm/cputable.h
> index b118072..a47e175 100644
> --- a/arch/powerpc/include/asm/cputable.h
> +++ b/arch/powerpc/include/asm/cputable.h
> @@ -196,6 +196,7 @@ enum {
> #define CPU_FTR_DAWR LONG_ASM_CONST(0x0400000000000000)
> #define CPU_FTR_DABRX
> LONG_ASM_CONST(0x0800000000000000)
> #define CPU_FTR_PMAO_BUG LONG_ASM_CONST(0x1000000000000000)
> +#define CPU_FTR_SUBCORE
> LONG_ASM_CONST(0x2000000000000000)
>
> #ifndef __ASSEMBLY__
>
> @@ -443,7 +444,7 @@ enum {
> CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
> CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
> CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_DAWR | \
> - CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP)
> + CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP | CPU_FTR_SUBCORE)
> #define CPU_FTRS_POWER8E (CPU_FTRS_POWER8 | CPU_FTR_PMAO_BUG)
> #define CPU_FTRS_POWER8_DD1 (CPU_FTRS_POWER8 & ~CPU_FTR_DBELL)
> #define CPU_FTRS_CELL (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
> diff --git a/arch/powerpc/platforms/powernv/subcore.c
> b/arch/powerpc/platforms/powernv/subcore.c
> index 503a73f..0babef1 100644
> --- a/arch/powerpc/platforms/powernv/subcore.c
> +++ b/arch/powerpc/platforms/powernv/subcore.c
> @@ -407,7 +407,7 @@ static DEVICE_ATTR(subcores_per_core, 0644,
>
> static int subcore_init(void)
> {
> - if (!cpu_has_feature(CPU_FTR_ARCH_207S))
> + if (!cpu_has_feature(CPU_FTR_SUBCORE))
> return 0;
>
> /*
> --
> 2.5.0
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
