diff options
| author | Anton Blanchard <anton@samba.org> | 2012-08-07 13:50:46 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-08-24 06:26:09 -0400 |
| commit | dad477ccd65f05bf3b5a874e0118bf4156a1fcbb (patch) | |
| tree | 978d9d93d53da3927a68e0bb7ebdad3f99f5299d | |
| parent | 7256a5d2da56f2ea8ad49e8dbe9e2984f0899b42 (diff) | |
powerpc: POWER7 copy_to_user/copy_from_user patch applied twice
"powerpc: Use enhanced touch instructions in POWER7
copy_to_user/copy_from_user" was applied twice. Remove one.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/lib/copyuser_power7.S | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S index f9ede7c6606e..4a4a46fbad0e 100644 --- a/arch/powerpc/lib/copyuser_power7.S +++ b/arch/powerpc/lib/copyuser_power7.S | |||
| @@ -326,37 +326,6 @@ err1; stb r0,0(r3) | |||
| 326 | dcbt r0,r8,0b01010 /* GO */ | 326 | dcbt r0,r8,0b01010 /* GO */ |
| 327 | .machine pop | 327 | .machine pop |
| 328 | 328 | ||
| 329 | /* | ||
| 330 | * We prefetch both the source and destination using enhanced touch | ||
| 331 | * instructions. We use a stream ID of 0 for the load side and | ||
| 332 | * 1 for the store side. | ||
| 333 | */ | ||
| 334 | clrrdi r6,r4,7 | ||
| 335 | clrrdi r9,r3,7 | ||
| 336 | ori r9,r9,1 /* stream=1 */ | ||
| 337 | |||
| 338 | srdi r7,r5,7 /* length in cachelines, capped at 0x3FF */ | ||
| 339 | cmpldi cr1,r7,0x3FF | ||
| 340 | ble cr1,1f | ||
| 341 | li r7,0x3FF | ||
| 342 | 1: lis r0,0x0E00 /* depth=7 */ | ||
| 343 | sldi r7,r7,7 | ||
| 344 | or r7,r7,r0 | ||
| 345 | ori r10,r7,1 /* stream=1 */ | ||
| 346 | |||
| 347 | lis r8,0x8000 /* GO=1 */ | ||
| 348 | clrldi r8,r8,32 | ||
| 349 | |||
| 350 | .machine push | ||
| 351 | .machine "power4" | ||
| 352 | dcbt r0,r6,0b01000 | ||
| 353 | dcbt r0,r7,0b01010 | ||
| 354 | dcbtst r0,r9,0b01000 | ||
| 355 | dcbtst r0,r10,0b01010 | ||
| 356 | eieio | ||
| 357 | dcbt r0,r8,0b01010 /* GO */ | ||
| 358 | .machine pop | ||
| 359 | |||
| 360 | beq .Lunwind_stack_nonvmx_copy | 329 | beq .Lunwind_stack_nonvmx_copy |
| 361 | 330 | ||
| 362 | /* | 331 | /* |
