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authorDave Airlie <airlied@redhat.com>2015-04-20 11:32:26 +1000
committerDave Airlie <airlied@redhat.com>2015-04-20 13:05:20 +1000
commit2c33ce009ca2389dbf0535d0672214d09738e35e (patch)
tree6186a6458c3c160385d794a23eaf07c786a9e61b /arch/powerpc/lib/copy_32.S
parentmedia-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format (diff)
parentMerge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux (diff)
downloadlinux-dev-2c33ce009ca2389dbf0535d0672214d09738e35e.tar.xz
linux-dev-2c33ce009ca2389dbf0535d0672214d09738e35e.zip
Merge Linus master into drm-next
The merge is clean, but the arm build fails afterwards, due to API changes in the regulator tree. I've included the patch into the merge to fix the build. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/powerpc/lib/copy_32.S')
-rw-r--r--arch/powerpc/lib/copy_32.S127
1 files changed, 0 insertions, 127 deletions
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S
index 55f19f9fd708..6813f80d1eec 100644
--- a/arch/powerpc/lib/copy_32.S
+++ b/arch/powerpc/lib/copy_32.S
@@ -69,54 +69,6 @@ CACHELINE_BYTES = L1_CACHE_BYTES
LG_CACHELINE_BYTES = L1_CACHE_SHIFT
CACHELINE_MASK = (L1_CACHE_BYTES-1)
-/*
- * Use dcbz on the complete cache lines in the destination
- * to set them to zero. This requires that the destination
- * area is cacheable. -- paulus
- */
-_GLOBAL(cacheable_memzero)
- mr r5,r4
- li r4,0
- addi r6,r3,-4
- cmplwi 0,r5,4
- blt 7f
- stwu r4,4(r6)
- beqlr
- andi. r0,r6,3
- add r5,r0,r5
- subf r6,r0,r6
- clrlwi r7,r6,32-LG_CACHELINE_BYTES
- add r8,r7,r5
- srwi r9,r8,LG_CACHELINE_BYTES
- addic. r9,r9,-1 /* total number of complete cachelines */
- ble 2f
- xori r0,r7,CACHELINE_MASK & ~3
- srwi. r0,r0,2
- beq 3f
- mtctr r0
-4: stwu r4,4(r6)
- bdnz 4b
-3: mtctr r9
- li r7,4
-10: dcbz r7,r6
- addi r6,r6,CACHELINE_BYTES
- bdnz 10b
- clrlwi r5,r8,32-LG_CACHELINE_BYTES
- addi r5,r5,4
-2: srwi r0,r5,2
- mtctr r0
- bdz 6f
-1: stwu r4,4(r6)
- bdnz 1b
-6: andi. r5,r5,3
-7: cmpwi 0,r5,0
- beqlr
- mtctr r5
- addi r6,r6,3
-8: stbu r4,1(r6)
- bdnz 8b
- blr
-
_GLOBAL(memset)
rlwimi r4,r4,8,16,23
rlwimi r4,r4,16,0,15
@@ -142,85 +94,6 @@ _GLOBAL(memset)
bdnz 8b
blr
-/*
- * This version uses dcbz on the complete cache lines in the
- * destination area to reduce memory traffic. This requires that
- * the destination area is cacheable.
- * We only use this version if the source and dest don't overlap.
- * -- paulus.
- */
-_GLOBAL(cacheable_memcpy)
- add r7,r3,r5 /* test if the src & dst overlap */
- add r8,r4,r5
- cmplw 0,r4,r7
- cmplw 1,r3,r8
- crand 0,0,4 /* cr0.lt &= cr1.lt */
- blt memcpy /* if regions overlap */
-
- addi r4,r4,-4
- addi r6,r3,-4
- neg r0,r3
- andi. r0,r0,CACHELINE_MASK /* # bytes to start of cache line */
- beq 58f
-
- cmplw 0,r5,r0 /* is this more than total to do? */
- blt 63f /* if not much to do */
- andi. r8,r0,3 /* get it word-aligned first */
- subf r5,r0,r5
- mtctr r8
- beq+ 61f
-70: lbz r9,4(r4) /* do some bytes */
- stb r9,4(r6)
- addi r4,r4,1
- addi r6,r6,1
- bdnz 70b
-61: srwi. r0,r0,2
- mtctr r0
- beq 58f
-72: lwzu r9,4(r4) /* do some words */
- stwu r9,4(r6)
- bdnz 72b
-
-58: srwi. r0,r5,LG_CACHELINE_BYTES /* # complete cachelines */
- clrlwi r5,r5,32-LG_CACHELINE_BYTES
- li r11,4
- mtctr r0
- beq 63f
-53:
- dcbz r11,r6
- COPY_16_BYTES
-#if L1_CACHE_BYTES >= 32
- COPY_16_BYTES
-#if L1_CACHE_BYTES >= 64
- COPY_16_BYTES
- COPY_16_BYTES
-#if L1_CACHE_BYTES >= 128
- COPY_16_BYTES
- COPY_16_BYTES
- COPY_16_BYTES
- COPY_16_BYTES
-#endif
-#endif
-#endif
- bdnz 53b
-
-63: srwi. r0,r5,2
- mtctr r0
- beq 64f
-30: lwzu r0,4(r4)
- stwu r0,4(r6)
- bdnz 30b
-
-64: andi. r0,r5,3
- mtctr r0
- beq+ 65f
-40: lbz r0,4(r4)
- stb r0,4(r6)
- addi r4,r4,1
- addi r6,r6,1
- bdnz 40b
-65: blr
-
_GLOBAL(memmove)
cmplw 0,r3,r4
bgt backwards_memcpy