[PATCH] m68k: move cache functions into separate file

Move a few cache functions into its own file and fix flush_icache_range() so
it can handle both kernel and user addresses correctly (assuming context is
set correctly).

Turn copy_to_user_page/copy_from_user_page into inline functions and add a
missing cache flush.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 104 deletions

diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index 1453a601372..559942ce0e1 100644
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -354,110 +354,6 @@ void cache_push (unsigned long paddr, int len)
 #endif
 }
 
-static unsigned long virt_to_phys_slow(unsigned long vaddr)
-{
-	if (CPU_IS_060) {
-		mm_segment_t fs = get_fs();
-		unsigned long paddr;
-
-		set_fs(get_ds());
-
-		/* The PLPAR instruction causes an access error if the translation
-		 * is not possible. To catch this we use the same exception mechanism
-		 * as for user space accesses in <asm/uaccess.h>. */
-		asm volatile (".chip 68060\n"
-			      "1: plpar (%0)\n"
-			      ".chip 68k\n"
-			      "2:\n"
-			      ".section .fixup,\"ax\"\n"
-			      "   .even\n"
-			      "3: sub.l %0,%0\n"
-			      "   jra 2b\n"
-			      ".previous\n"
-			      ".section __ex_table,\"a\"\n"
-			      "   .align 4\n"
-			      "   .long 1b,3b\n"
-			      ".previous"
-			      : "=a" (paddr)
-			      : "0" (vaddr));
-		set_fs(fs);
-		return paddr;
-	} else if (CPU_IS_040) {
-		mm_segment_t fs = get_fs();
-		unsigned long mmusr;
-
-		set_fs(get_ds());
-
-		asm volatile (".chip 68040\n\t"
-			      "ptestr (%1)\n\t"
-			      "movec %%mmusr, %0\n\t"
-			      ".chip 68k"
-			      : "=r" (mmusr)
-			      : "a" (vaddr));
-		set_fs(fs);
-
-		if (mmusr & MMU_R_040)
-			return (mmusr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
-	} else {
-		unsigned short mmusr;
-		unsigned long *descaddr;
-
-		asm volatile ("ptestr #5,%2@,#7,%0\n\t"
-			      "pmove %%psr,%1@"
-			      : "=a&" (descaddr)
-			      : "a" (&mmusr), "a" (vaddr));
-		if (mmusr & (MMU_I|MMU_B|MMU_L))
-			return 0;
-		descaddr = phys_to_virt((unsigned long)descaddr);
-		switch (mmusr & MMU_NUM) {
-		case 1:
-			return (*descaddr & 0xfe000000) | (vaddr & 0x01ffffff);
-		case 2:
-			return (*descaddr & 0xfffc0000) | (vaddr & 0x0003ffff);
-		case 3:
-			return (*descaddr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
-		}
-	}
-	return 0;
-}
-
-/* Push n pages at kernel virtual address and clear the icache */
-/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
-void flush_icache_range(unsigned long address, unsigned long endaddr)
-{
-	if (CPU_IS_040_OR_060) {
-		address &= PAGE_MASK;
-
-		if (address >= PAGE_OFFSET && address < (unsigned long)high_memory) {
-			do {
-				asm volatile ("nop\n\t"
-					      ".chip 68040\n\t"
-					      "cpushp %%bc,(%0)\n\t"
-					      ".chip 68k"
-					      : : "a" (virt_to_phys((void *)address)));
-				address += PAGE_SIZE;
-			} while (address < endaddr);
-		} else {
-			do {
-				asm volatile ("nop\n\t"
-					      ".chip 68040\n\t"
-					      "cpushp %%bc,(%0)\n\t"
-					      ".chip 68k"
-					      : : "a" (virt_to_phys_slow(address)));
-				address += PAGE_SIZE;
-			} while (address < endaddr);
-		}
-	} else {
-		unsigned long tmp;
-		asm volatile ("movec %%cacr,%0\n\t"
-			      "orw %1,%0\n\t"
-			      "movec %0,%%cacr"
-			      : "=&d" (tmp)
-			      : "di" (FLUSH_I));
-	}
-}
-
-
 #ifndef CONFIG_SINGLE_MEMORY_CHUNK
 int mm_end_of_chunk (unsigned long addr, int len)
 {