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Diffstat (limited to 'sysdeps/sparc/sparc64/sparcv9v/memcpy.S')
-rw-r--r--sysdeps/sparc/sparc64/sparcv9v/memcpy.S593
1 files changed, 0 insertions, 593 deletions
diff --git a/sysdeps/sparc/sparc64/sparcv9v/memcpy.S b/sysdeps/sparc/sparc64/sparcv9v/memcpy.S
deleted file mode 100644
index 05c837fa25..0000000000
--- a/sysdeps/sparc/sparc64/sparcv9v/memcpy.S
+++ /dev/null
@@ -1,593 +0,0 @@
-/* Copy SIZE bytes from SRC to DEST. For SUN4V Niagara.
- Copyright (C) 2006 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by David S. Miller (davem@davemloft.net)
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <sysdep.h>
-
-#define ASI_BLK_INIT_QUAD_LDD_P 0xe2
-#define ASI_P 0x80
-#define ASI_PNF 0x82
-
-#define LOAD(type,addr,dest) type##a [addr] ASI_P, dest
-#define LOAD_TWIN(addr_reg,dest0,dest1) \
- ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_P, dest0
-
-#define STORE(type,src,addr) type src, [addr]
-#define STORE_INIT(src,addr) stxa src, [addr] %asi
-
-#ifndef XCC
-#define USE_BPR
-#define XCC xcc
-#endif
-
- .register %g2,#scratch
- .register %g3,#scratch
- .register %g6,#scratch
-
- .text
- .align 32
-
-ENTRY(bcopy)
- sub %o1, %o0, %o4
- mov %o0, %g4
- cmp %o4, %o2
- mov %o1, %o0
- bgeu,pt %XCC, 100f
- mov %g4, %o1
-#ifndef USE_BPR
- srl %o2, 0, %o2
-#endif
- brnz,pn %o2, 220f
- add %o0, %o2, %o0
- retl
- nop
-END(bcopy)
-
- .align 32
-ENTRY(memcpy)
-100: /* %o0=dst, %o1=src, %o2=len */
- mov %o0, %g5
- cmp %o2, 0
- be,pn %XCC, 85f
-218: or %o0, %o1, %o3
- cmp %o2, 16
- blu,a,pn %XCC, 80f
- or %o3, %o2, %o3
-
- /* 2 blocks (128 bytes) is the minimum we can do the block
- * copy with. We need to ensure that we'll iterate at least
- * once in the block copy loop. At worst we'll need to align
- * the destination to a 64-byte boundary which can chew up
- * to (64 - 1) bytes from the length before we perform the
- * block copy loop.
- */
- cmp %o2, (2 * 64)
- blu,pt %XCC, 70f
- andcc %o3, 0x7, %g0
-
- /* %o0: dst
- * %o1: src
- * %o2: len (known to be >= 128)
- *
- * The block copy loops will use %o4/%o5,%g2/%g3 as
- * temporaries while copying the data.
- */
-
- LOAD(prefetch, %o1, #one_read)
- wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi
-
- /* Align destination on 64-byte boundary. */
- andcc %o0, (64 - 1), %o4
- be,pt %XCC, 2f
- sub %o4, 64, %o4
- sub %g0, %o4, %o4 ! bytes to align dst
- sub %o2, %o4, %o2
-1: subcc %o4, 1, %o4
- LOAD(ldub, %o1, %g1)
- STORE(stb, %g1, %o0)
- add %o1, 1, %o1
- bne,pt %XCC, 1b
- add %o0, 1, %o0
-
- /* If the source is on a 16-byte boundary we can do
- * the direct block copy loop. If it is 8-byte aligned
- * we can do the 16-byte loads offset by -8 bytes and the
- * init stores offset by one register.
- *
- * If the source is not even 8-byte aligned, we need to do
- * shifting and masking (basically integer faligndata).
- *
- * The careful bit with init stores is that if we store
- * to any part of the cache line we have to store the whole
- * cacheline else we can end up with corrupt L2 cache line
- * contents. Since the loop works on 64-bytes of 64-byte
- * aligned store data at a time, this is easy to ensure.
- */
-2:
- andcc %o1, (16 - 1), %o4
- andn %o2, (64 - 1), %g1 ! block copy loop iterator
- sub %o2, %g1, %o2 ! final sub-block copy bytes
- be,pt %XCC, 50f
- cmp %o4, 8
- be,a,pt %XCC, 10f
- sub %o1, 0x8, %o1
-
- /* Neither 8-byte nor 16-byte aligned, shift and mask. */
- mov %g1, %o4
- and %o1, 0x7, %g1
- sll %g1, 3, %g1
- mov 64, %o3
- andn %o1, 0x7, %o1
- LOAD(ldx, %o1, %g2)
- sub %o3, %g1, %o3
- sllx %g2, %g1, %g2
-
-#define SWIVEL_ONE_DWORD(SRC, TMP1, TMP2, PRE_VAL, PRE_SHIFT, POST_SHIFT, DST)\
- LOAD(ldx, SRC, TMP1); \
- srlx TMP1, PRE_SHIFT, TMP2; \
- or TMP2, PRE_VAL, TMP2; \
- STORE_INIT(TMP2, DST); \
- sllx TMP1, POST_SHIFT, PRE_VAL;
-
-1: add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x00)
- add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x08)
- add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x10)
- add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x18)
- add %o1, 32, %o1
- LOAD(prefetch, %o1, #one_read)
- sub %o1, 32 - 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x20)
- add %o1, 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x28)
- add %o1, 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x30)
- add %o1, 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x38)
- subcc %o4, 64, %o4
- bne,pt %XCC, 1b
- add %o0, 64, %o0
-
-#undef SWIVEL_ONE_DWORD
-
- srl %g1, 3, %g1
- ba,pt %XCC, 60f
- add %o1, %g1, %o1
-
-10: /* Destination is 64-byte aligned, source was only 8-byte
- * aligned but it has been subtracted by 8 and we perform
- * one twin load ahead, then add 8 back into source when
- * we finish the loop.
- */
- LOAD_TWIN(%o1, %o4, %o5)
-1: add %o1, 16, %o1
- LOAD_TWIN(%o1, %g2, %g3)
- add %o1, 16 + 32, %o1
- LOAD(prefetch, %o1, #one_read)
- sub %o1, 32, %o1
- STORE_INIT(%o5, %o0 + 0x00) ! initializes cache line
- STORE_INIT(%g2, %o0 + 0x08)
- LOAD_TWIN(%o1, %o4, %o5)
- add %o1, 16, %o1
- STORE_INIT(%g3, %o0 + 0x10)
- STORE_INIT(%o4, %o0 + 0x18)
- LOAD_TWIN(%o1, %g2, %g3)
- add %o1, 16, %o1
- STORE_INIT(%o5, %o0 + 0x20)
- STORE_INIT(%g2, %o0 + 0x28)
- LOAD_TWIN(%o1, %o4, %o5)
- STORE_INIT(%g3, %o0 + 0x30)
- STORE_INIT(%o4, %o0 + 0x38)
- subcc %g1, 64, %g1
- bne,pt %XCC, 1b
- add %o0, 64, %o0
-
- ba,pt %XCC, 60f
- add %o1, 0x8, %o1
-
-50: /* Destination is 64-byte aligned, and source is 16-byte
- * aligned.
- */
-1: LOAD_TWIN(%o1, %o4, %o5)
- add %o1, 16, %o1
- LOAD_TWIN(%o1, %g2, %g3)
- add %o1, 16 + 32, %o1
- LOAD(prefetch, %o1, #one_read)
- sub %o1, 32, %o1
- STORE_INIT(%o4, %o0 + 0x00) ! initializes cache line
- STORE_INIT(%o5, %o0 + 0x08)
- LOAD_TWIN(%o1, %o4, %o5)
- add %o1, 16, %o1
- STORE_INIT(%g2, %o0 + 0x10)
- STORE_INIT(%g3, %o0 + 0x18)
- LOAD_TWIN(%o1, %g2, %g3)
- add %o1, 16, %o1
- STORE_INIT(%o4, %o0 + 0x20)
- STORE_INIT(%o5, %o0 + 0x28)
- STORE_INIT(%g2, %o0 + 0x30)
- STORE_INIT(%g3, %o0 + 0x38)
- subcc %g1, 64, %g1
- bne,pt %XCC, 1b
- add %o0, 64, %o0
- /* fall through */
-
-60:
- /* %o2 contains any final bytes still needed to be copied
- * over. If anything is left, we copy it one byte at a time.
- */
- wr %g0, ASI_PNF, %asi
- brz,pt %o2, 85f
- sub %o0, %o1, %o3
- ba,a,pt %XCC, 90f
-
- .align 64
-70: /* 16 < len <= 64 */
- bne,pn %XCC, 75f
- sub %o0, %o1, %o3
-
-72:
- andn %o2, 0xf, %o4
- and %o2, 0xf, %o2
-1: subcc %o4, 0x10, %o4
- LOAD(ldx, %o1, %o5)
- add %o1, 0x08, %o1
- LOAD(ldx, %o1, %g1)
- sub %o1, 0x08, %o1
- STORE(stx, %o5, %o1 + %o3)
- add %o1, 0x8, %o1
- STORE(stx, %g1, %o1 + %o3)
- bgu,pt %XCC, 1b
- add %o1, 0x8, %o1
-73: andcc %o2, 0x8, %g0
- be,pt %XCC, 1f
- nop
- sub %o2, 0x8, %o2
- LOAD(ldx, %o1, %o5)
- STORE(stx, %o5, %o1 + %o3)
- add %o1, 0x8, %o1
-1: andcc %o2, 0x4, %g0
- be,pt %XCC, 1f
- nop
- sub %o2, 0x4, %o2
- LOAD(lduw, %o1, %o5)
- STORE(stw, %o5, %o1 + %o3)
- add %o1, 0x4, %o1
-1: cmp %o2, 0
- be,pt %XCC, 85f
- nop
- ba,pt %XCC, 90f
- nop
-
-75:
- andcc %o0, 0x7, %g1
- sub %g1, 0x8, %g1
- be,pn %icc, 2f
- sub %g0, %g1, %g1
- sub %o2, %g1, %o2
-
-1: subcc %g1, 1, %g1
- LOAD(ldub, %o1, %o5)
- STORE(stb, %o5, %o1 + %o3)
- bgu,pt %icc, 1b
- add %o1, 1, %o1
-
-2: add %o1, %o3, %o0
- andcc %o1, 0x7, %g1
- bne,pt %icc, 8f
- sll %g1, 3, %g1
-
- cmp %o2, 16
- bgeu,pt %icc, 72b
- nop
- ba,a,pt %XCC, 73b
-
-8: mov 64, %o3
- andn %o1, 0x7, %o1
- LOAD(ldx, %o1, %g2)
- sub %o3, %g1, %o3
- andn %o2, 0x7, %o4
- sllx %g2, %g1, %g2
-1: add %o1, 0x8, %o1
- LOAD(ldx, %o1, %g3)
- subcc %o4, 0x8, %o4
- srlx %g3, %o3, %o5
- or %o5, %g2, %o5
- STORE(stx, %o5, %o0)
- add %o0, 0x8, %o0
- bgu,pt %icc, 1b
- sllx %g3, %g1, %g2
-
- srl %g1, 3, %g1
- andcc %o2, 0x7, %o2
- be,pn %icc, 85f
- add %o1, %g1, %o1
- ba,pt %XCC, 90f
- sub %o0, %o1, %o3
-
- .align 64
-80: /* 0 < len <= 16 */
- andcc %o3, 0x3, %g0
- bne,pn %XCC, 90f
- sub %o0, %o1, %o3
-
-1:
- subcc %o2, 4, %o2
- LOAD(lduw, %o1, %g1)
- STORE(stw, %g1, %o1 + %o3)
- bgu,pt %XCC, 1b
- add %o1, 4, %o1
-
-85: retl
- mov %g5, %o0
-
- .align 32
-90:
- subcc %o2, 1, %o2
- LOAD(ldub, %o1, %g1)
- STORE(stb, %g1, %o1 + %o3)
- bgu,pt %XCC, 90b
- add %o1, 1, %o1
- retl
- mov %g5, %o0
-
-END(memcpy)
-
-#define RMOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3) \
- ldx [%src - offset - 0x20], %t0; \
- ldx [%src - offset - 0x18], %t1; \
- ldx [%src - offset - 0x10], %t2; \
- ldx [%src - offset - 0x08], %t3; \
- stw %t0, [%dst - offset - 0x1c]; \
- srlx %t0, 32, %t0; \
- stw %t0, [%dst - offset - 0x20]; \
- stw %t1, [%dst - offset - 0x14]; \
- srlx %t1, 32, %t1; \
- stw %t1, [%dst - offset - 0x18]; \
- stw %t2, [%dst - offset - 0x0c]; \
- srlx %t2, 32, %t2; \
- stw %t2, [%dst - offset - 0x10]; \
- stw %t3, [%dst - offset - 0x04]; \
- srlx %t3, 32, %t3; \
- stw %t3, [%dst - offset - 0x08];
-
-#define RMOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3) \
- ldx [%src - offset - 0x20], %t0; \
- ldx [%src - offset - 0x18], %t1; \
- ldx [%src - offset - 0x10], %t2; \
- ldx [%src - offset - 0x08], %t3; \
- stx %t0, [%dst - offset - 0x20]; \
- stx %t1, [%dst - offset - 0x18]; \
- stx %t2, [%dst - offset - 0x10]; \
- stx %t3, [%dst - offset - 0x08]; \
- ldx [%src - offset - 0x40], %t0; \
- ldx [%src - offset - 0x38], %t1; \
- ldx [%src - offset - 0x30], %t2; \
- ldx [%src - offset - 0x28], %t3; \
- stx %t0, [%dst - offset - 0x40]; \
- stx %t1, [%dst - offset - 0x38]; \
- stx %t2, [%dst - offset - 0x30]; \
- stx %t3, [%dst - offset - 0x28];
-
-#define RMOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \
- ldx [%src + offset + 0x00], %t0; \
- ldx [%src + offset + 0x08], %t1; \
- stw %t0, [%dst + offset + 0x04]; \
- srlx %t0, 32, %t2; \
- stw %t2, [%dst + offset + 0x00]; \
- stw %t1, [%dst + offset + 0x0c]; \
- srlx %t1, 32, %t3; \
- stw %t3, [%dst + offset + 0x08];
-
-#define RMOVE_LASTALIGNCHUNK(src, dst, offset, t0, t1) \
- ldx [%src + offset + 0x00], %t0; \
- ldx [%src + offset + 0x08], %t1; \
- stx %t0, [%dst + offset + 0x00]; \
- stx %t1, [%dst + offset + 0x08];
-
- .align 32
-228: andcc %o2, 1, %g0
- be,pt %icc, 2f+4
-1: ldub [%o1 - 1], %o5
- sub %o1, 1, %o1
- sub %o0, 1, %o0
- subcc %o2, 1, %o2
- be,pn %xcc, 229f
- stb %o5, [%o0]
-2: ldub [%o1 - 1], %o5
- sub %o0, 2, %o0
- ldub [%o1 - 2], %g5
- sub %o1, 2, %o1
- subcc %o2, 2, %o2
- stb %o5, [%o0 + 1]
- bne,pt %xcc, 2b
- stb %g5, [%o0]
-229: retl
- mov %g4, %o0
-out: retl
- mov %g5, %o0
-
- .align 32
-ENTRY(memmove)
- mov %o0, %g5
-#ifndef USE_BPR
- srl %o2, 0, %o2
-#endif
- brz,pn %o2, out
- sub %o0, %o1, %o4
- cmp %o4, %o2
- bgeu,pt %XCC, 218b
- mov %o0, %g4
- add %o0, %o2, %o0
-220: add %o1, %o2, %o1
- cmp %o2, 15
- bleu,pn %xcc, 228b
- andcc %o0, 7, %g2
- sub %o0, %o1, %g5
- andcc %g5, 3, %o5
- bne,pn %xcc, 232f
- andcc %o1, 3, %g0
- be,a,pt %xcc, 236f
- andcc %o1, 4, %g0
- andcc %o1, 1, %g0
- be,pn %xcc, 4f
- andcc %o1, 2, %g0
- ldub [%o1 - 1], %g2
- sub %o1, 1, %o1
- sub %o0, 1, %o0
- sub %o2, 1, %o2
- be,pn %xcc, 5f
- stb %g2, [%o0]
-4: lduh [%o1 - 2], %g2
- sub %o1, 2, %o1
- sub %o0, 2, %o0
- sub %o2, 2, %o2
- sth %g2, [%o0]
-5: andcc %o1, 4, %g0
-236: be,a,pn %xcc, 2f
- andcc %o2, -128, %g6
- lduw [%o1 - 4], %g5
- sub %o1, 4, %o1
- sub %o0, 4, %o0
- sub %o2, 4, %o2
- stw %g5, [%o0]
- andcc %o2, -128, %g6
-2: be,pn %xcc, 235f
- andcc %o0, 4, %g0
- be,pn %xcc, 282f + 4
-5: RMOVE_BIGCHUNK(o1, o0, 0x00, g1, g3, g5, o5)
- RMOVE_BIGCHUNK(o1, o0, 0x20, g1, g3, g5, o5)
- RMOVE_BIGCHUNK(o1, o0, 0x40, g1, g3, g5, o5)
- RMOVE_BIGCHUNK(o1, o0, 0x60, g1, g3, g5, o5)
- subcc %g6, 128, %g6
- sub %o1, 128, %o1
- bne,pt %xcc, 5b
- sub %o0, 128, %o0
-235: andcc %o2, 0x70, %g6
-41: be,pn %xcc, 280f
- andcc %o2, 8, %g0
-
-279: rd %pc, %o5
- sll %g6, 1, %g5
- sub %o1, %g6, %o1
- sub %o5, %g5, %o5
- jmpl %o5 + %lo(280f - 279b), %g0
- sub %o0, %g6, %o0
- RMOVE_LASTCHUNK(o1, o0, 0x60, g2, g3, g5, o5)
- RMOVE_LASTCHUNK(o1, o0, 0x50, g2, g3, g5, o5)
- RMOVE_LASTCHUNK(o1, o0, 0x40, g2, g3, g5, o5)
- RMOVE_LASTCHUNK(o1, o0, 0x30, g2, g3, g5, o5)
- RMOVE_LASTCHUNK(o1, o0, 0x20, g2, g3, g5, o5)
- RMOVE_LASTCHUNK(o1, o0, 0x10, g2, g3, g5, o5)
- RMOVE_LASTCHUNK(o1, o0, 0x00, g2, g3, g5, o5)
-280: be,pt %xcc, 281f
- andcc %o2, 4, %g0
- ldx [%o1 - 8], %g2
- sub %o0, 8, %o0
- stw %g2, [%o0 + 4]
- sub %o1, 8, %o1
- srlx %g2, 32, %g2
- stw %g2, [%o0]
-281: be,pt %xcc, 1f
- andcc %o2, 2, %g0
- lduw [%o1 - 4], %g2
- sub %o1, 4, %o1
- stw %g2, [%o0 - 4]
- sub %o0, 4, %o0
-1: be,pt %xcc, 1f
- andcc %o2, 1, %g0
- lduh [%o1 - 2], %g2
- sub %o1, 2, %o1
- sth %g2, [%o0 - 2]
- sub %o0, 2, %o0
-1: be,pt %xcc, 211f
- nop
- ldub [%o1 - 1], %g2
- stb %g2, [%o0 - 1]
-211: retl
- mov %g4, %o0
-
-282: RMOVE_BIGALIGNCHUNK(o1, o0, 0x00, g1, g3, g5, o5)
- RMOVE_BIGALIGNCHUNK(o1, o0, 0x40, g1, g3, g5, o5)
- subcc %g6, 128, %g6
- sub %o1, 128, %o1
- bne,pt %xcc, 282b
- sub %o0, 128, %o0
- andcc %o2, 0x70, %g6
- be,pn %xcc, 284f
- andcc %o2, 8, %g0
-
-283: rd %pc, %o5
- sub %o1, %g6, %o1
- sub %o5, %g6, %o5
- jmpl %o5 + %lo(284f - 283b), %g0
- sub %o0, %g6, %o0
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x60, g2, g3)
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x50, g2, g3)
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x40, g2, g3)
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x30, g2, g3)
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x20, g2, g3)
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x10, g2, g3)
- RMOVE_LASTALIGNCHUNK(o1, o0, 0x00, g2, g3)
-284: be,pt %xcc, 285f
- andcc %o2, 4, %g0
- ldx [%o1 - 8], %g2
- sub %o0, 8, %o0
- sub %o1, 8, %o1
- stx %g2, [%o0]
-285: be,pt %xcc, 1f
- andcc %o2, 2, %g0
- lduw [%o1 - 4], %g2
- sub %o0, 4, %o0
- sub %o1, 4, %o1
- stw %g2, [%o0]
-1: be,pt %xcc, 1f
- andcc %o2, 1, %g0
- lduh [%o1 - 2], %g2
- sub %o0, 2, %o0
- sub %o1, 2, %o1
- sth %g2, [%o0]
-1: be,pt %xcc, 1f
- nop
- ldub [%o1 - 1], %g2
- stb %g2, [%o0 - 1]
-1: retl
- mov %g4, %o0
-
-232: ldub [%o1 - 1], %g5
- sub %o1, 1, %o1
- sub %o0, 1, %o0
- subcc %o2, 1, %o2
- bne,pt %xcc, 232b
- stb %g5, [%o0]
-234: retl
- mov %g4, %o0
-END(memmove)
-
-#ifdef USE_BPR
-weak_alias (memcpy, __align_cpy_1)
-weak_alias (memcpy, __align_cpy_2)
-weak_alias (memcpy, __align_cpy_4)
-weak_alias (memcpy, __align_cpy_8)
-weak_alias (memcpy, __align_cpy_16)
-#endif
-libc_hidden_builtin_def (memcpy)
-libc_hidden_builtin_def (memmove)
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