sh: Local TLB flushing variants for SMP prep.

Rename the existing flush routines to local_ variants for use by
the IPI-backed global flush routines on SMP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

7 files changed, 21 insertions, 29 deletions

diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
index e6106239a0fe..fe1b276c97c6 100644
--- a/arch/sh/kernel/sh_ksyms.c
+++ b/arch/sh/kernel/sh_ksyms.c
@@ -105,7 +105,6 @@ EXPORT_SYMBOL(__flush_purge_region);
 EXPORT_SYMBOL(clear_user_page);
 #endif
 
-EXPORT_SYMBOL(flush_tlb_page);
 EXPORT_SYMBOL(__down_trylock);
 
 #ifdef CONFIG_SMP
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index d172065182fb..ae957a932375 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -106,7 +106,7 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot)
 
         set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, prot));
 
-        __flush_tlb_page(get_asid(), addr);
+        flush_tlb_one(get_asid(), addr);
 }
 
 /*
diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c
index b529d809dd4b..969efeceb928 100644
--- a/arch/sh/mm/pg-sh4.c
+++ b/arch/sh/mm/pg-sh4.c
@@ -39,7 +39,7 @@ void clear_user_page(void *to, unsigned long address, struct page *page)
                 mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]);
                 set_pte(pte, entry);
                 local_irq_save(flags);
-                __flush_tlb_page(get_asid(), p3_addr);
+                flush_tlb_one(get_asid(), p3_addr);
                 local_irq_restore(flags);
                 update_mmu_cache(NULL, p3_addr, entry);
                 __clear_user_page((void *)p3_addr, to);
@@ -74,7 +74,7 @@ void copy_user_page(void *to, void *from, unsigned long address,
                 mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]);
                 set_pte(pte, entry);
                 local_irq_save(flags);
-                __flush_tlb_page(get_asid(), p3_addr);
+                flush_tlb_one(get_asid(), p3_addr);
                 local_irq_restore(flags);
                 update_mmu_cache(NULL, p3_addr, entry);
                 __copy_user_page((void *)p3_addr, from, to);
diff --git a/arch/sh/mm/tlb-flush.c b/arch/sh/mm/tlb-flush.c
index b829c17c1d17..dcaf98e82be8 100644
--- a/arch/sh/mm/tlb-flush.c
+++ b/arch/sh/mm/tlb-flush.c
@@ -14,7 +14,7 @@
 #include <asm/tlbflush.h>
 #include <asm/cacheflush.h>
 
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 {
         unsigned int cpu = smp_processor_id();
 
@@ -31,15 +31,15 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
                         saved_asid = get_asid();
                         set_asid(asid);
                 }
-                __flush_tlb_page(asid, page);
+                flush_tlb_one(asid, page);
                 if (saved_asid != MMU_NO_ASID)
                         set_asid(saved_asid);
                 local_irq_restore(flags);
         }
 }
 
-void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-                     unsigned long end)
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+                           unsigned long end)
 {
         struct mm_struct *mm = vma->vm_mm;
         unsigned int cpu = smp_processor_id();
@@ -67,7 +67,7 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
                                 set_asid(asid);
                         }
                         while (start < end) {
-                                __flush_tlb_page(asid, start);
+                                flush_tlb_one(asid, start);
                                 start += PAGE_SIZE;
                         }
                         if (saved_asid != MMU_NO_ASID)
@@ -77,7 +77,7 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
         }
 }
 
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
 {
         unsigned int cpu = smp_processor_id();
         unsigned long flags;
@@ -86,7 +86,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
         local_irq_save(flags);
         size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
         if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
-                flush_tlb_all();
+                local_flush_tlb_all();
         } else {
                 unsigned long asid;
                 unsigned long saved_asid = get_asid();
@@ -97,7 +97,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
                 end &= PAGE_MASK;
                 set_asid(asid);
                 while (start < end) {
-                        __flush_tlb_page(asid, start);
+                        flush_tlb_one(asid, start);
                         start += PAGE_SIZE;
                 }
                 set_asid(saved_asid);
@@ -105,7 +105,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
         local_irq_restore(flags);
 }
 
-void flush_tlb_mm(struct mm_struct *mm)
+void local_flush_tlb_mm(struct mm_struct *mm)
 {
         unsigned int cpu = smp_processor_id();
 
@@ -122,7 +122,7 @@ void flush_tlb_mm(struct mm_struct *mm)
         }
 }
 
-void flush_tlb_all(void)
+void local_flush_tlb_all(void)
 {
         unsigned long flags, status;
 
diff --git a/arch/sh/mm/tlb-nommu.c b/arch/sh/mm/tlb-nommu.c
index e55cfea01092..1ccca7c0532e 100644
--- a/arch/sh/mm/tlb-nommu.c
+++ b/arch/sh/mm/tlb-nommu.c
@@ -13,39 +13,33 @@
 /*
  * Nothing too terribly exciting here ..
  */
-
-void flush_tlb(void)
-{
-        BUG();
-}
-
-void flush_tlb_all(void)
+void local_flush_tlb_all(void)
 {
         BUG();
 }
 
-void flush_tlb_mm(struct mm_struct *mm)
+void local_flush_tlb_mm(struct mm_struct *mm)
 {
         BUG();
 }
 
-void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
                             unsigned long end)
 {
         BUG();
 }
 
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 {
         BUG();
 }
 
-void __flush_tlb_page(unsigned long asid, unsigned long page)
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
 {
         BUG();
 }
 
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
 {
         BUG();
 }
@@ -55,4 +49,3 @@ void update_mmu_cache(struct vm_area_struct * vma,
 {
         BUG();
 }
-
diff --git a/arch/sh/mm/tlb-sh3.c b/arch/sh/mm/tlb-sh3.c
index 598c998dba5c..e5e76eb7ee09 100644
--- a/arch/sh/mm/tlb-sh3.c
+++ b/arch/sh/mm/tlb-sh3.c
@@ -12,7 +12,7 @@
 #include <asm/system.h>
 #include <asm/mmu_context.h>
 
-void __flush_tlb_page(unsigned long asid, unsigned long page)
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
 {
         unsigned long addr, data;
         int i, ways = MMU_NTLB_WAYS;
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c
index 758d8dec622b..221e7095473d 100644
--- a/arch/sh/mm/tlb-sh4.c
+++ b/arch/sh/mm/tlb-sh4.c
@@ -12,7 +12,7 @@
 #include <asm/system.h>
 #include <asm/mmu_context.h>
 
-void __flush_tlb_page(unsigned long asid, unsigned long page)
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
 {
         unsigned long addr, data;