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-rw-r--r--arch/powerpc/include/asm/book3s/64/mmu-hash.h2
-rw-r--r--arch/powerpc/include/asm/slice.h1
-rw-r--r--arch/powerpc/include/asm/thread_info.h6
-rw-r--r--arch/powerpc/kernel/process.c9
-rw-r--r--arch/powerpc/mm/mmu_context_book3s64.c5
-rw-r--r--arch/powerpc/mm/slice.c14
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)
{