powerpc/8xx: Start using dcbX instructions in various copy routines

Now that 8xx can fixup dcbX instructions, start using them
where possible like every other PowerPc arch do.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 0 insertions, 18 deletions

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index da9c0c4c10f3..8649f536f8df 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -502,15 +502,7 @@ _GLOBAL(clear_pages)
         li      r0,PAGE_SIZE/L1_CACHE_BYTES
         slw     r0,r0,r4
         mtctr   r0
-#ifdef CONFIG_8xx
-        li      r4, 0
-1:      stw     r4, 0(r3)
-        stw     r4, 4(r3)
-        stw     r4, 8(r3)
-        stw     r4, 12(r3)
-#else
 1:      dcbz    0,r3
-#endif
         addi    r3,r3,L1_CACHE_BYTES
         bdnz    1b
         blr
@@ -535,15 +527,6 @@ _GLOBAL(copy_page)
         addi    r3,r3,-4
         addi    r4,r4,-4
 
-#ifdef CONFIG_8xx
-        /* don't use prefetch on 8xx */
-        li      r0,4096/L1_CACHE_BYTES
-        mtctr   r0
-1:      COPY_16_BYTES
-        bdnz    1b
-        blr
-
-#else   /* not 8xx, we can prefetch */
         li      r5,4
 
 #if MAX_COPY_PREFETCH > 1
@@ -584,7 +567,6 @@ _GLOBAL(copy_page)
         li      r0,MAX_COPY_PREFETCH
         li      r11,4
         b       2b
-#endif  /* CONFIG_8xx */
 
 /*
  * void atomic_clear_mask(atomic_t mask, atomic_t *addr)