Nicholas Piggin <npig...@gmail.com> writes:
> On Thu, 28 Jul 2016 00:18:06 +1000
> Michael Ellerman <m...@ellerman.id.au> wrote:
>> diff --git a/arch/powerpc/include/asm/mmu.h
>> b/arch/powerpc/include/asm/mmu.h index eb942a446969..f413b3213a3b
>> 100644 --- a/arch/powerpc/include/asm/mmu.h
>> +++ b/arch/powerpc/include/asm/mmu.h
>> @@ -163,6 +163,18 @@ static inline void assert_pte_locked(struct
>> mm_struct *mm, unsigned long addr) }
>> #endif /* !CONFIG_DEBUG_VM */
>>
>> +#ifdef CONFIG_PPC_RADIX_MMU
>> +static inline bool radix_enabled(void)
>> +{
>> + return mmu_has_feature(MMU_FTR_TYPE_RADIX);
>> +}
>> +#else
>> +static inline bool radix_enabled(void)
>> +{
>> + return false;
>> +}
>> +#endif
>
> Won't MMU_FTRS_POSSIBLE just do the right thing when
> !CONFIG_PPC_RADIX_MMU?
Yes it should.
I'll have to work out why Aneesh thought he needed to do it explicitly
and whether that is needed or not.
cheers
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