[PATCH] CRIS update: SMP

Patches to support SMP.

* Each CPU has its own current_pgd.
* flush_tlb_range is implemented as flush_tlb_mm.
* Atomic operations implemented with spinlocks.
* Semaphores implemented with spinlocks.

Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 16 insertions, 3 deletions

diff --git a/include/asm-cris/tlbflush.h b/include/asm-cris/tlbflush.h
index 1781fe1a32f6..6ed7d9ae90db 100644
--- a/include/asm-cris/tlbflush.h
+++ b/include/asm-cris/tlbflush.h
@@ -18,13 +18,26 @@
  *
  */
 
+extern void __flush_tlb_all(void);
+extern void __flush_tlb_mm(struct mm_struct *mm);
+extern void __flush_tlb_page(struct vm_area_struct *vma,
+                           unsigned long addr);
+
+#ifdef CONFIG_SMP
 extern void flush_tlb_all(void);
 extern void flush_tlb_mm(struct mm_struct *mm);
 extern void flush_tlb_page(struct vm_area_struct *vma, 
                            unsigned long addr);
-extern void flush_tlb_range(struct vm_area_struct *vma,
-                            unsigned long start,
-                            unsigned long end);
+#else
+#define flush_tlb_all __flush_tlb_all
+#define flush_tlb_mm __flush_tlb_mm
+#define flush_tlb_page __flush_tlb_page
+#endif
+
+static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
+{
+        flush_tlb_mm(vma->vm_mm);
+}
 
 extern inline void flush_tlb_pgtables(struct mm_struct *mm,
                                       unsigned long start, unsigned long end)