m68knommu: fix definitions of __pa() and __va()

Fix compilation breakage of all m68knommu targets:

  CC      arch/m68knommu/kernel/asm-offsets.s
In file included from include/linux/sched.h:77,
                 from arch/m68knommu/kernel/asm-offsets.c:12:
include/linux/percpu.h: In function 'per_cpu_ptr_to_phys':
include/linux/percpu.h:161: error: implicit declaration of function 'virt_to_phy

This is broken in linux-2.6.33-rc3.

Change the definitions of __pa() and __va() to not use virt_to_phys()
and phys_to_virt(). Trivial 1:1 conversion required for the non-MMU case.

A side effect if this is that the m68knommu can now use asm/virtconvert.h
for the definition of virt_to_phys() and phys_to_virt().

Also cleaned up the definition of page_to_phys() when moving into
virtconvert.h.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h
index 22ab05c9c52b..3f834b3ab5bd 100644
--- a/arch/m68k/include/asm/virtconvert.h
+++ b/arch/m68k/include/asm/virtconvert.h
@@ -26,6 +26,7 @@ static inline void *phys_to_virt(unsigned long address)
 }
 
 /* Permanent address of a page. */
+#ifdef CONFIG_MMU
 #ifdef CONFIG_SINGLE_MEMORY_CHUNK
 #define page_to_phys(page) \
         __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT))
@@ -37,6 +38,9 @@ static inline void *phys_to_virt(unsigned long address)
         page_to_pfn(__page) << PAGE_SHIFT;                              \
 })
 #endif
+#else
+#define page_to_phys(page)      (((page) - mem_map) << PAGE_SHIFT)
+#endif
 
 /*
  * IO bus memory addresses are 1:1 with the physical address,