Re: [PATCH v5 18/22] powerpc/mm: Extend pte_fragment functionality to nohash/32
From: Aneesh Kumar K.V <hidden>
Date: 2018-09-26 02:48:36
Also in:
lkml
Christophe Leroy [off-list ref] writes:
quoted hunk ↗ jump to hunk
In order to allow the 8xx to handle pte_fragments, this patch extends the use of pte_fragments to nohash/32 platforms. Signed-off-by: Christophe Leroy <redacted> --- arch/powerpc/include/asm/mmu_context.h | 2 +- arch/powerpc/include/asm/nohash/32/mmu-40x.h | 1 + arch/powerpc/include/asm/nohash/32/mmu-44x.h | 1 + arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 1 + arch/powerpc/include/asm/nohash/32/mmu.h | 4 ++- arch/powerpc/include/asm/nohash/32/pgalloc.h | 52 +++++++++++++--------------- arch/powerpc/include/asm/nohash/32/pgtable.h | 11 ++++-- arch/powerpc/include/asm/nohash/mmu-book3e.h | 1 + arch/powerpc/mm/Makefile | 3 ++ arch/powerpc/mm/mmu_context_nohash.c | 14 ++++++++ 10 files changed, 57 insertions(+), 33 deletions(-)diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index b2f89b621b15..7f2c37a3f99d 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h@@ -222,7 +222,7 @@ static inline int arch_dup_mmap(struct mm_struct *oldmm, return 0; } -#ifndef CONFIG_PPC_BOOK3S_64 +#if defined(CONFIG_PPC_BOOK3E_64) || defined(CONFIG_PPC_BOOK3S_32) static inline void arch_exit_mmap(struct mm_struct *mm) { }
Can we do that with #ifndef arch_exit_mmap? This should handle every platform that doesn't use pte_frag right?
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diff --git a/arch/powerpc/include/asm/nohash/32/mmu-40x.h b/arch/powerpc/include/asm/nohash/32/mmu-40x.h index 74f4edb5916e..7c77ceed71d6 100644 --- a/arch/powerpc/include/asm/nohash/32/mmu-40x.h +++ b/arch/powerpc/include/asm/nohash/32/mmu-40x.h@@ -58,6 +58,7 @@ typedef struct { unsigned int id; unsigned int active; unsigned long vdso_base;
-aneesh