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authorJoakim Tjernlund <joakim.tjernlund@transmode.se>2009-11-20 00:21:09 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-12-09 17:10:37 +1100
commit15d914d72a3f4f1531c41c084cb556be22aa1d2e (patch)
tree09ff4038394194058da9ca802871d35e6fe9a2d5 /arch/powerpc/kernel
parent0c4661698c58db2a9efc44f403b893bd4d98f348 (diff)
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>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/misc_32.S18
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index da9c0c4c10f..8649f536f8d 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)