diff options
| author | Greg Ungerer <gerg@uclinux.org> | 2010-01-13 10:42:05 +1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-01-12 20:51:45 -0800 |
| commit | 682137f7e6bc78e3c324874c0c213123ddc5e261 (patch) | |
| tree | dc7abee5b6ac11bb3819f6e8432566651998afe6 | |
| parent | 066000dd856709b6980123eb39b957fe26993f7b (diff) | |
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>
| -rw-r--r-- | arch/m68k/include/asm/io_no.h | 14 | ||||
| -rw-r--r-- | arch/m68k/include/asm/page_no.h | 4 | ||||
| -rw-r--r-- | arch/m68k/include/asm/virtconvert.h | 4 |
3 files changed, 7 insertions, 15 deletions
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h index 7f57436ec18..359065d5a9f 100644 --- a/arch/m68k/include/asm/io_no.h +++ b/arch/m68k/include/asm/io_no.h @@ -3,6 +3,7 @@ #ifdef __KERNEL__ +#include <asm/virtconvert.h> /* * These are for ISA/PCI shared memory _only_ and should never be used @@ -165,19 +166,6 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size extern void iounmap(void *addr); -/* Pages to physical address... */ -#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT) -#define page_to_bus(page) ((page - mem_map) << PAGE_SHIFT) - -/* - * Macros used for converting between virtual and physical mappings. - */ -#define phys_to_virt(vaddr) ((void *) (vaddr)) -#define virt_to_phys(vaddr) ((unsigned long) (vaddr)) - -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt - /* * Convert a physical pointer to a virtual kernel pointer for /dev/mem * access diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h index 1f31b060cc8..8029a33e03c 100644 --- a/arch/m68k/include/asm/page_no.h +++ b/arch/m68k/include/asm/page_no.h @@ -56,8 +56,8 @@ extern unsigned long memory_end; #ifndef __ASSEMBLY__ -#define __pa(vaddr) virt_to_phys((void *)(vaddr)) -#define __va(paddr) phys_to_virt((unsigned long)(paddr)) +#define __pa(vaddr) ((unsigned long)(vaddr)) +#define __va(paddr) ((void *)(paddr)) #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h index 22ab05c9c52..3f834b3ab5b 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, |