Le 26/09/2018 à 04:48, Aneesh Kumar K.V a écrit :
Christophe Leroy <christophe.le...@c-s.fr> writes: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 <christophe.le...@c-s.fr> --- 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?
Yes we can, that means moving arch_exit_mmap() prototype in platform specific mmu headers, and adding there a #define arch_exit_mmap arch_exit_mmap
Is that your idea ? Christophe
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
