diff options
| author | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2009-11-20 00:21:09 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-09 17:10:37 +1100 |
| commit | 15d914d72a3f4f1531c41c084cb556be22aa1d2e (patch) | |
| tree | 09ff4038394194058da9ca802871d35e6fe9a2d5 /arch/powerpc/kernel | |
| parent | 0c4661698c58db2a9efc44f403b893bd4d98f348 (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.S | 18 |
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) |