diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu-hash.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/slice.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/thread_info.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/kernel/process.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/mm/mmu_context_book3s64.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/mm/slice.c | 14 |
6 files changed, 37 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h index d3064c7d1b1f..bbeaf6adf93c 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h +++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h @@ -487,6 +487,8 @@ int htab_remove_mapping(unsigned long vstart, unsigned long vend, extern void pseries_add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages); extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr); +extern void hash__setup_new_exec(void); + #ifdef CONFIG_PPC_PSERIES void hpte_init_pseries(void); #else diff --git a/arch/powerpc/include/asm/slice.h b/arch/powerpc/include/asm/slice.h index e40406cf5628..a595461c9cb0 100644 --- a/arch/powerpc/include/asm/slice.h +++ b/arch/powerpc/include/asm/slice.h @@ -32,6 +32,7 @@ void slice_set_range_psize(struct mm_struct *mm, unsigned long start, unsigned long len, unsigned int psize); void slice_init_new_context_exec(struct mm_struct *mm); +void slice_setup_new_exec(void); #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 3c0002044bc9..f9a442bb5a72 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -72,6 +72,12 @@ static inline struct thread_info *current_thread_info(void) } extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); + +#ifdef CONFIG_PPC_BOOK3S_64 +void arch_setup_new_exec(void); +#define arch_setup_new_exec arch_setup_new_exec +#endif + #endif /* __ASSEMBLY__ */ /* diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 913c5725cdb2..e4feb45ae4c6 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1482,6 +1482,15 @@ void flush_thread(void) #endif /* CONFIG_HAVE_HW_BREAKPOINT */ } +#ifdef CONFIG_PPC_BOOK3S_64 +void arch_setup_new_exec(void) +{ + if (radix_enabled()) + return; + hash__setup_new_exec(); +} +#endif + int set_thread_uses_vas(void) { #ifdef CONFIG_PPC_BOOK3S_64 diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c index dbd8f762140b..f7352c66b6b8 100644 --- a/arch/powerpc/mm/mmu_context_book3s64.c +++ b/arch/powerpc/mm/mmu_context_book3s64.c @@ -84,6 +84,11 @@ static int hash__init_new_context(struct mm_struct *mm) return index; } +void hash__setup_new_exec(void) +{ + slice_setup_new_exec(); +} + static int radix__init_new_context(struct mm_struct *mm) { unsigned long rts_field; diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c index 606f424aac47..fc5b3a1ec666 100644 --- a/arch/powerpc/mm/slice.c +++ b/arch/powerpc/mm/slice.c @@ -746,6 +746,20 @@ void slice_init_new_context_exec(struct mm_struct *mm) bitmap_fill(mask->high_slices, SLICE_NUM_HIGH); } +#ifdef CONFIG_PPC_BOOK3S_64 +void slice_setup_new_exec(void) +{ + struct mm_struct *mm = current->mm; + + slice_dbg("slice_setup_new_exec(mm=%p)\n", mm); + + if (!is_32bit_task()) + return; + + mm->context.slb_addr_limit = DEFAULT_MAP_WINDOW; +} +#endif + void slice_set_range_psize(struct mm_struct *mm, unsigned long start, unsigned long len, unsigned int psize) { |