With Book3s64 Hash translation, manually inserting a PTE requires
updating the Linux PTE, inserting a SLB entry, and inserting the hashed
page. The first is handled via the usual kernel abstractions, the second
requires slb_allocate_user() which is currently 'static', and the third
is available via hash_page_mm() already.
Make slb_allocate_user() non-static and add a prototype so the next
patch can use it during code-patching.
Signed-off-by: Christopher M. Riedl <c...@bluescreens.de>
---
v4: * New to series.
---
arch/powerpc/include/asm/book3s/64/mmu-hash.h | 1 +
arch/powerpc/mm/book3s64/slb.c | 4 +---
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
index 3004f3323144d..189854eebba77 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
@@ -525,6 +525,7 @@ void slb_dump_contents(struct slb_entry *slb_ptr);
extern void slb_vmalloc_update(void);
extern void slb_set_size(u16 size);
void preload_new_slb_context(unsigned long start, unsigned long sp);
+long slb_allocate_user(struct mm_struct *mm, unsigned long ea);
#endif /* __ASSEMBLY__ */
/*
diff --git a/arch/powerpc/mm/book3s64/slb.c b/arch/powerpc/mm/book3s64/slb.c
index da0836cb855af..532eb51bc5211 100644
--- a/arch/powerpc/mm/book3s64/slb.c
+++ b/arch/powerpc/mm/book3s64/slb.c
@@ -29,8 +29,6 @@
#include "internal.h"
-static long slb_allocate_user(struct mm_struct *mm, unsigned long ea);
-
bool stress_slb_enabled __initdata;
static int __init parse_stress_slb(char *p)
@@ -791,7 +789,7 @@ static long slb_allocate_kernel(unsigned long ea, unsigned
long id)
return slb_insert_entry(ea, context, flags, ssize, true);
}
-static long slb_allocate_user(struct mm_struct *mm, unsigned long ea)
+long slb_allocate_user(struct mm_struct *mm, unsigned long ea)
{
unsigned long context;
unsigned long flags;
--
2.26.1
