[PATCH V2 27/68] powerpc/mm/radix: Dummy radix_enabled()

[Balbir Singh]

On 09/04/16 16:13, Aneesh Kumar K.V wrote:
> In this patch we add the radix Kconfig and conditional check.
> radix_enabled is written to always return 0 here. Once we have
> all needed radix changes added, we will update this to mmu_feature
> check.
> 
> We need to addt this early so that we can get it all build in the early
> stage.

s/addt/add

> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
> 
> radix kconfig variable
> ---
>  arch/powerpc/include/asm/book3s/64/mmu.h | 2 ++
>  arch/powerpc/include/asm/mmu.h           | 3 +++
>  arch/powerpc/platforms/Kconfig.cputype   | 4 ++++
>  3 files changed, 9 insertions(+)
> 
> diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
> index b86786f2521c..593d9e3ce8e7 100644
> --- a/arch/powerpc/include/asm/book3s/64/mmu.h
> +++ b/arch/powerpc/include/asm/book3s/64/mmu.h
> @@ -19,6 +19,8 @@ struct mmu_psize_def {
>  	unsigned long	sllp;	/* SLB L||LP (exact mask to use in slbmte) */
>  };
>  extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
> +
> +#define radix_enabled() (0)
>  #endif /* __ASSEMBLY__ */
>  
>  /* 64-bit classic hash table MMU */
> diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
> index 5f55024f9522..decde4c4870d 100644
> --- a/arch/powerpc/include/asm/mmu.h
> +++ b/arch/powerpc/include/asm/mmu.h
> @@ -204,6 +204,9 @@ static inline void assert_pte_locked(struct mm_struct *mm, unsigned long addr)
>  #  include <asm/mmu-8xx.h>
>  #endif
>  
> +#ifndef radix_enabled
> +#define radix_enabled() (0)
> +#endif
>  
>  #endif /* __KERNEL__ */
>  #endif /* _ASM_POWERPC_MMU_H_ */
> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
> index 142dff5e96d6..53299182dba9 100644
> --- a/arch/powerpc/platforms/Kconfig.cputype
> +++ b/arch/powerpc/platforms/Kconfig.cputype
> @@ -331,6 +331,10 @@ config PPC_STD_MMU_64
>  	def_bool y
>  	depends on PPC_STD_MMU && PPC64
>  
> +config PPC_RADIX_MMU
> +        def_bool y
> +        depends on PPC_BOOK3S_64
> +

Some help would be nice here

>  config PPC_MMU_NOHASH
>  	def_bool y
>  	depends on !PPC_STD_MMU
>