[PATCH v6 03/19] powerpc/mm: Move copy_mm_to_paca to paca.c

[Michael Ellerman]

From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com>

We also update the function arg to struct mm_struct. Move this so that function
finds the definition of struct mm_struct. No functional change in this patch.

Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/include/asm/paca.h | 18 +-----------------
 arch/powerpc/kernel/paca.c      | 19 +++++++++++++++++++
 arch/powerpc/mm/hash_utils_64.c |  4 ++--
 arch/powerpc/mm/slb.c           |  2 +-
 arch/powerpc/mm/slice.c         |  2 +-
 5 files changed, 24 insertions(+), 21 deletions(-)

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 708c3e592eeb..f48c250339fd 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -206,23 +206,7 @@ struct paca_struct {
 #endif
 };
 
-#ifdef CONFIG_PPC_BOOK3S
-static inline void copy_mm_to_paca(mm_context_t *context)
-{
-       get_paca()->mm_ctx_id = context->id;
-#ifdef CONFIG_PPC_MM_SLICES
-       get_paca()->mm_ctx_low_slices_psize = context->low_slices_psize;
-       memcpy(&get_paca()->mm_ctx_high_slices_psize,
-              &context->high_slices_psize, SLICE_ARRAY_SIZE);
-#else
-       get_paca()->mm_ctx_user_psize = context->user_psize;
-       get_paca()->mm_ctx_sllp = context->sllp;
-#endif
-}
-#else
-static inline void copy_mm_to_paca(mm_context_t *context){}
-#endif
-
+extern void copy_mm_to_paca(struct mm_struct *mm);
 extern struct paca_struct *paca;
 extern void initialise_paca(struct paca_struct *new_paca, int cpu);
 extern void setup_paca(struct paca_struct *new_paca);
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index dfc479df9634..e2cf745a4b94 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -245,3 +245,22 @@ void __init free_unused_pacas(void)
 
        free_lppacas();
 }
+
+void copy_mm_to_paca(struct mm_struct *mm)
+{
+#ifdef CONFIG_PPC_BOOK3S
+       mm_context_t *context = &mm->context;
+
+       get_paca()->mm_ctx_id = context->id;
+#ifdef CONFIG_PPC_MM_SLICES
+       get_paca()->mm_ctx_low_slices_psize = context->low_slices_psize;
+       memcpy(&get_paca()->mm_ctx_high_slices_psize,
+              &context->high_slices_psize, SLICE_ARRAY_SIZE);
+#else /* CONFIG_PPC_MM_SLICES */
+       get_paca()->mm_ctx_user_psize = context->user_psize;
+       get_paca()->mm_ctx_sllp = context->sllp;
+#endif
+#else /* CONFIG_PPC_BOOK3S */
+       return;
+#endif
+}
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index d0ee17029e99..716255f88bbd 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1133,7 +1133,7 @@ void demote_segment_4k(struct mm_struct *mm, unsigned 
long addr)
        copro_flush_all_slbs(mm);
        if ((get_paca_psize(addr) != MMU_PAGE_4K) && (current->mm == mm)) {
 
-               copy_mm_to_paca(&mm->context);
+               copy_mm_to_paca(mm);
                slb_flush_and_rebolt();
        }
 }
@@ -1205,7 +1205,7 @@ static void check_paca_psize(unsigned long ea, struct 
mm_struct *mm,
 {
        if (user_region) {
                if (psize != get_paca_psize(ea)) {
-                       copy_mm_to_paca(&mm->context);
+                       copy_mm_to_paca(mm);
                        slb_flush_and_rebolt();
                }
        } else if (get_paca()->vmalloc_sllp !=
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 5e01b2ece1d0..98ae810b8c21 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -229,7 +229,7 @@ void switch_slb(struct task_struct *tsk, struct mm_struct 
*mm)
                asm volatile("slbie %0" : : "r" (slbie_data));
 
        get_paca()->slb_cache_ptr = 0;
-       copy_mm_to_paca(&mm->context);
+       copy_mm_to_paca(mm);
 
        /*
         * preload some userspace segments into the SLB.
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index d1da357583e3..175e0dbce89b 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -192,7 +192,7 @@ static void slice_flush_segments(void *parm)
        if (mm != current->active_mm)
                return;
 
-       copy_mm_to_paca(&current->active_mm->context);
+       copy_mm_to_paca(current->active_mm);
 
        local_irq_save(flags);
        slb_flush_and_rebolt();
-- 
2.7.4