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Date: Wed, 20 Mar 2019 10:07:00 +0000 (UTC) From: Christophe Leroy <christophe.leroy@....fr> To: Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org>, Michael Ellerman <mpe@...erman.id.au>, aneesh.kumar@...ux.ibm.com Cc: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org Subject: [PATCH v1 24/27] powerpc: define subarch SLB_ADDR_LIMIT_DEFAULT This patch defines a subarch specific SLB_ADDR_LIMIT_DEFAULT to remove the #ifdefs around the setup of mm->context.slb_addr_limit Signed-off-by: Christophe Leroy <christophe.leroy@....fr> --- arch/powerpc/include/asm/book3s/64/slice.h | 2 ++ arch/powerpc/include/asm/nohash/32/slice.h | 2 ++ arch/powerpc/kernel/setup-common.c | 8 +------- arch/powerpc/mm/slice.c | 6 +----- 4 files changed, 6 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/64/slice.h b/arch/powerpc/include/asm/book3s/64/slice.h index af498b0da21a..8da15958dcd1 100644 --- a/arch/powerpc/include/asm/book3s/64/slice.h +++ b/arch/powerpc/include/asm/book3s/64/slice.h @@ -13,6 +13,8 @@ #define SLICE_NUM_HIGH (H_PGTABLE_RANGE >> SLICE_HIGH_SHIFT) #define GET_HIGH_SLICE_INDEX(addr) ((addr) >> SLICE_HIGH_SHIFT) +#define SLB_ADDR_LIMIT_DEFAULT DEFAULT_MAP_WINDOW_USER64 + #else /* CONFIG_PPC_MM_SLICES */ #define get_slice_psize(mm, addr) ((mm)->context.user_psize) diff --git a/arch/powerpc/include/asm/nohash/32/slice.h b/arch/powerpc/include/asm/nohash/32/slice.h index 777d62e40ac0..39eb0154ae2d 100644 --- a/arch/powerpc/include/asm/nohash/32/slice.h +++ b/arch/powerpc/include/asm/nohash/32/slice.h @@ -13,6 +13,8 @@ #define SLICE_NUM_HIGH 0ul #define GET_HIGH_SLICE_INDEX(addr) (addr & 0) +#define SLB_ADDR_LIMIT_DEFAULT DEFAULT_MAP_WINDOW + #endif /* CONFIG_PPC_MM_SLICES */ #endif /* _ASM_POWERPC_NOHASH_32_SLICE_H */ diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 2e5dfb6e0823..af2682d052a2 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -948,14 +948,8 @@ void __init setup_arch(char **cmdline_p) init_mm.brk = klimit; #ifdef CONFIG_PPC_MM_SLICES -#ifdef CONFIG_PPC64 if (!radix_enabled()) - init_mm.context.slb_addr_limit = DEFAULT_MAP_WINDOW_USER64; -#elif defined(CONFIG_PPC_8xx) - init_mm.context.slb_addr_limit = DEFAULT_MAP_WINDOW; -#else -#error "context.addr_limit not initialized." -#endif + init_mm.context.slb_addr_limit = SLB_ADDR_LIMIT_DEFAULT; #endif #ifdef CONFIG_SPAPR_TCE_IOMMU diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c index 50b1a5528384..64513cf47e5b 100644 --- a/arch/powerpc/mm/slice.c +++ b/arch/powerpc/mm/slice.c @@ -652,11 +652,7 @@ void slice_init_new_context_exec(struct mm_struct *mm) * case of fork it is just inherited from the mm being * duplicated. */ -#ifdef CONFIG_PPC64 - mm->context.slb_addr_limit = DEFAULT_MAP_WINDOW_USER64; -#else - mm->context.slb_addr_limit = DEFAULT_MAP_WINDOW; -#endif + mm->context.slb_addr_limit = SLB_ADDR_LIMIT_DEFAULT; mm->context.user_psize = psize; -- 2.13.3
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