diff options
author | Greg Ungerer <gerg@snapgear.com> | 2007-07-15 23:38:33 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:37 -0700 |
commit | 17d8725d36c1f3d6a21a2d3f96875bda8ddfa92c (patch) | |
tree | 1003d39916a4f7df4eb574b3bd0a579aeda96422 /arch/m68knommu | |
parent | 2f75d1098c51734ce47d0afd44ecdc2ae9713031 (diff) | |
download | op-kernel-dev-17d8725d36c1f3d6a21a2d3f96875bda8ddfa92c.zip op-kernel-dev-17d8725d36c1f3d6a21a2d3f96875bda8ddfa92c.tar.gz |
m68knommu: remove old cache management cruft from mm code
Remove cache management cruft. This code is dead, all the cache manangement
functions for the ColdFire exist in the header file
include/asm-m68knommu/cacheflush.h.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68knommu')
-rw-r--r-- | arch/m68knommu/mm/memory.c | 80 |
1 files changed, 2 insertions, 78 deletions
diff --git a/arch/m68knommu/mm/memory.c b/arch/m68knommu/mm/memory.c index 411e452..1a66b71 100644 --- a/arch/m68knommu/mm/memory.c +++ b/arch/m68knommu/mm/memory.c @@ -17,90 +17,14 @@ #include <linux/types.h> #include <linux/slab.h> -#include <asm/setup.h> #include <asm/segment.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/system.h> -#include <asm/traps.h> -#include <asm/io.h> /* - * cache_clear() semantics: Clear any cache entries for the area in question, - * without writing back dirty entries first. This is useful if the data will - * be overwritten anyway, e.g. by DMA to memory. The range is defined by a - * _physical_ address. - */ - -void cache_clear (unsigned long paddr, int len) -{ -} - - -/* - * Define cache invalidate functions. The ColdFire 5407 is really - * the only processor that needs to do some work here. Anything - * that has separate data and instruction caches will be a problem. - */ -#ifdef CONFIG_M5407 - -static __inline__ void cache_invalidate_lines(unsigned long paddr, int len) -{ - unsigned long sset, eset; - - sset = (paddr & 0x00000ff0); - eset = ((paddr + len) & 0x0000ff0) + 0x10; - - __asm__ __volatile__ ( - "nop\n\t" - "clrl %%d0\n\t" - "1:\n\t" - "movel %0,%%a0\n\t" - "addl %%d0,%%a0\n\t" - "2:\n\t" - ".word 0xf4e8\n\t" - "addl #0x10,%%a0\n\t" - "cmpl %1,%%a0\n\t" - "blt 2b\n\t" - "addql #1,%%d0\n\t" - "cmpil #4,%%d0\n\t" - "bne 1b" - : : "a" (sset), "a" (eset) : "d0", "a0" ); -} - -#else -#define cache_invalidate_lines(a,b) -#endif - - -/* - * cache_push() semantics: Write back any dirty cache data in the given area, - * and invalidate the range in the instruction cache. It needs not (but may) - * invalidate those entries also in the data cache. The range is defined by a - * _physical_ address. - */ - -void cache_push (unsigned long paddr, int len) -{ - cache_invalidate_lines(paddr, len); -} - - -/* - * cache_push_v() semantics: Write back any dirty cache data in the given - * area, and invalidate those entries at least in the instruction cache. This - * is intended to be used after data has been written that can be executed as - * code later. The range is defined by a _user_mode_ _virtual_ address (or, - * more exactly, the space is defined by the %sfc/%dfc register.) - */ - -void cache_push_v (unsigned long vaddr, int len) -{ - cache_invalidate_lines(vaddr, len); -} - -/* Map some physical address range into the kernel address space. The - * code is copied and adapted from map_chunk(). + * Map some physical address range into the kernel address space. + * The code is copied and adapted from map_chunk(). */ unsigned long kernel_map(unsigned long paddr, unsigned long size, |