linux-kernel - Re: [PATCH v1 06/15] powerpc/Kconfig: select PPC_MM

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Date:   Thu, 11 Apr 2019 10:37:29 +0530
From:   "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
To:     Christophe Leroy <christophe.leroy@....fr>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v1 06/15] powerpc/Kconfig: select PPC_MM_SLICES from subarch type

Aneesh Kumar K.V <aneesh.kumar@...ux.ibm.com> writes:

> Christophe Leroy <christophe.leroy@....fr> writes:
>
>> Lets select PPC_MM_SLICES from the subarch config item instead of
>> doing it via defaults declaration in the PPC_MM_SLICES item itself.
>>
>
> Did we miss the book3s 64 default y here?
>
>> Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
>> ---
>>  arch/powerpc/platforms/Kconfig.cputype | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
>> index 842b2c7e156a..a46a0adb634d 100644
>> --- a/arch/powerpc/platforms/Kconfig.cputype
>> +++ b/arch/powerpc/platforms/Kconfig.cputype
>> @@ -34,6 +34,7 @@ config PPC_8xx
>>  	bool "Freescale 8xx"
>>  	select FSL_SOC
>>  	select SYS_SUPPORTS_HUGETLBFS
>> +	select PPC_MM_SLICES if HUGETLB_PAGE
>>  
>>  config 40x
>>  	bool "AMCC 40x"
>> @@ -75,6 +76,7 @@ config PPC_BOOK3S_64
>>  	select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
>>  	select ARCH_SUPPORTS_NUMA_BALANCING
>>  	select IRQ_WORK
>> +	select PPC_MM_SLICES


ok this takes care of BOOK3S_64.


>>  
>>  config PPC_BOOK3E_64
>>  	bool "Embedded processors"
>> @@ -360,8 +362,6 @@ config PPC_BOOK3E_MMU
>>  
>>  config PPC_MM_SLICES
>>  	bool
>> -	default y if PPC_BOOK3S_64
>> -	default y if PPC_8xx && HUGETLB_PAGE
>>  
>>  config PPC_HAVE_PMU_SUPPORT
>>         bool
>> -- 
>> 2.13.3