From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-x236.google.com (mail-pf0-x236.google.com [IPv6:2607:f8b0:400e:c00::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3qr5MG1m2TzDqbF for ; Thu, 21 Apr 2016 14:27:37 +1000 (AEST) Received: by mail-pf0-x236.google.com with SMTP id 184so25764028pff.0 for ; Wed, 20 Apr 2016 21:27:37 -0700 (PDT) Subject: Re: [PATCH V2 27/68] powerpc/mm/radix: Dummy radix_enabled() To: "Aneesh Kumar K.V" , benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au References: <1460182444-2468-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <1460182444-2468-28-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org From: Balbir Singh Message-ID: <571856B3.4010302@gmail.com> Date: Thu, 21 Apr 2016 14:27:31 +1000 MIME-Version: 1.0 In-Reply-To: <1460182444-2468-28-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 > > 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 > #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 >