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authorSam Ravnborg <sam@ravnborg.org>2008-12-03 03:10:25 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-04 09:17:19 -0800
commit478b8fecda511942404ac232897a718cecd13e48 (patch)
treee022fce8ca92f93a000e1cd686255f0b126e9fd5 /arch/sparc64/lib/U3memcpy.S
parent18269c0fd4db9bec2668f895f21d742486ccb90f (diff)
sparc,sparc64: unify lib/
o Renamed files in sparc64 to <name>_64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/lib/U3memcpy.S')
-rw-r--r--arch/sparc64/lib/U3memcpy.S422
1 files changed, 0 insertions, 422 deletions
diff --git a/arch/sparc64/lib/U3memcpy.S b/arch/sparc64/lib/U3memcpy.S
deleted file mode 100644
index 7cae9cc6a20..00000000000
--- a/arch/sparc64/lib/U3memcpy.S
+++ /dev/null
@@ -1,422 +0,0 @@
-/* U3memcpy.S: UltraSparc-III optimized memcpy.
- *
- * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
- */
-
-#ifdef __KERNEL__
-#include <asm/visasm.h>
-#include <asm/asi.h>
-#define GLOBAL_SPARE %g7
-#else
-#define ASI_BLK_P 0xf0
-#define FPRS_FEF 0x04
-#ifdef MEMCPY_DEBUG
-#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \
- clr %g1; clr %g2; clr %g3; subcc %g0, %g0, %g0;
-#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
-#else
-#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
-#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
-#endif
-#define GLOBAL_SPARE %g5
-#endif
-
-#ifndef EX_LD
-#define EX_LD(x) x
-#endif
-
-#ifndef EX_ST
-#define EX_ST(x) x
-#endif
-
-#ifndef EX_RETVAL
-#define EX_RETVAL(x) x
-#endif
-
-#ifndef LOAD
-#define LOAD(type,addr,dest) type [addr], dest
-#endif
-
-#ifndef STORE
-#define STORE(type,src,addr) type src, [addr]
-#endif
-
-#ifndef STORE_BLK
-#define STORE_BLK(src,addr) stda src, [addr] ASI_BLK_P
-#endif
-
-#ifndef FUNC_NAME
-#define FUNC_NAME U3memcpy
-#endif
-
-#ifndef PREAMBLE
-#define PREAMBLE
-#endif
-
-#ifndef XCC
-#define XCC xcc
-#endif
-
- .register %g2,#scratch
- .register %g3,#scratch
-
- /* Special/non-trivial issues of this code:
- *
- * 1) %o5 is preserved from VISEntryHalf to VISExitHalf
- * 2) Only low 32 FPU registers are used so that only the
- * lower half of the FPU register set is dirtied by this
- * code. This is especially important in the kernel.
- * 3) This code never prefetches cachelines past the end
- * of the source buffer.
- */
-
- .text
- .align 64
-
- /* The cheetah's flexible spine, oversized liver, enlarged heart,
- * slender muscular body, and claws make it the swiftest hunter
- * in Africa and the fastest animal on land. Can reach speeds
- * of up to 2.4GB per second.
- */
-
- .globl FUNC_NAME
- .type FUNC_NAME,#function
-FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
- srlx %o2, 31, %g2
- cmp %g2, 0
- tne %xcc, 5
- PREAMBLE
- mov %o0, %o4
- cmp %o2, 0
- be,pn %XCC, 85f
- or %o0, %o1, %o3
- cmp %o2, 16
- blu,a,pn %XCC, 80f
- or %o3, %o2, %o3
-
- cmp %o2, (3 * 64)
- blu,pt %XCC, 70f
- andcc %o3, 0x7, %g0
-
- /* Clobbers o5/g1/g2/g3/g7/icc/xcc. We must preserve
- * o5 from here until we hit VISExitHalf.
- */
- VISEntryHalf
-
- /* Is 'dst' already aligned on an 64-byte boundary? */
- andcc %o0, 0x3f, %g2
- be,pt %XCC, 2f
-
- /* Compute abs((dst & 0x3f) - 0x40) into %g2. This is the number
- * of bytes to copy to make 'dst' 64-byte aligned. We pre-
- * subtract this from 'len'.
- */
- sub %o0, %o1, GLOBAL_SPARE
- sub %g2, 0x40, %g2
- sub %g0, %g2, %g2
- sub %o2, %g2, %o2
- andcc %g2, 0x7, %g1
- be,pt %icc, 2f
- and %g2, 0x38, %g2
-
-1: subcc %g1, 0x1, %g1
- EX_LD(LOAD(ldub, %o1 + 0x00, %o3))
- EX_ST(STORE(stb, %o3, %o1 + GLOBAL_SPARE))
- bgu,pt %XCC, 1b
- add %o1, 0x1, %o1
-
- add %o1, GLOBAL_SPARE, %o0
-
-2: cmp %g2, 0x0
- and %o1, 0x7, %g1
- be,pt %icc, 3f
- alignaddr %o1, %g0, %o1
-
- EX_LD(LOAD(ldd, %o1, %f4))
-1: EX_LD(LOAD(ldd, %o1 + 0x8, %f6))
- add %o1, 0x8, %o1
- subcc %g2, 0x8, %g2
- faligndata %f4, %f6, %f0
- EX_ST(STORE(std, %f0, %o0))
- be,pn %icc, 3f
- add %o0, 0x8, %o0
-
- EX_LD(LOAD(ldd, %o1 + 0x8, %f4))
- add %o1, 0x8, %o1
- subcc %g2, 0x8, %g2
- faligndata %f6, %f4, %f2
- EX_ST(STORE(std, %f2, %o0))
- bne,pt %icc, 1b
- add %o0, 0x8, %o0
-
-3: LOAD(prefetch, %o1 + 0x000, #one_read)
- LOAD(prefetch, %o1 + 0x040, #one_read)
- andn %o2, (0x40 - 1), GLOBAL_SPARE
- LOAD(prefetch, %o1 + 0x080, #one_read)
- LOAD(prefetch, %o1 + 0x0c0, #one_read)
- LOAD(prefetch, %o1 + 0x100, #one_read)
- EX_LD(LOAD(ldd, %o1 + 0x000, %f0))
- LOAD(prefetch, %o1 + 0x140, #one_read)
- EX_LD(LOAD(ldd, %o1 + 0x008, %f2))
- LOAD(prefetch, %o1 + 0x180, #one_read)
- EX_LD(LOAD(ldd, %o1 + 0x010, %f4))
- LOAD(prefetch, %o1 + 0x1c0, #one_read)
- faligndata %f0, %f2, %f16
- EX_LD(LOAD(ldd, %o1 + 0x018, %f6))
- faligndata %f2, %f4, %f18
- EX_LD(LOAD(ldd, %o1 + 0x020, %f8))
- faligndata %f4, %f6, %f20
- EX_LD(LOAD(ldd, %o1 + 0x028, %f10))
- faligndata %f6, %f8, %f22
-
- EX_LD(LOAD(ldd, %o1 + 0x030, %f12))
- faligndata %f8, %f10, %f24
- EX_LD(LOAD(ldd, %o1 + 0x038, %f14))
- faligndata %f10, %f12, %f26
- EX_LD(LOAD(ldd, %o1 + 0x040, %f0))
-
- subcc GLOBAL_SPARE, 0x80, GLOBAL_SPARE
- add %o1, 0x40, %o1
- bgu,pt %XCC, 1f
- srl GLOBAL_SPARE, 6, %o3
- ba,pt %xcc, 2f
- nop
-
- .align 64
-1:
- EX_LD(LOAD(ldd, %o1 + 0x008, %f2))
- faligndata %f12, %f14, %f28
- EX_LD(LOAD(ldd, %o1 + 0x010, %f4))
- faligndata %f14, %f0, %f30
- EX_ST(STORE_BLK(%f16, %o0))
- EX_LD(LOAD(ldd, %o1 + 0x018, %f6))
- faligndata %f0, %f2, %f16
- add %o0, 0x40, %o0
-
- EX_LD(LOAD(ldd, %o1 + 0x020, %f8))
- faligndata %f2, %f4, %f18
- EX_LD(LOAD(ldd, %o1 + 0x028, %f10))
- faligndata %f4, %f6, %f20
- EX_LD(LOAD(ldd, %o1 + 0x030, %f12))
- subcc %o3, 0x01, %o3
- faligndata %f6, %f8, %f22
- EX_LD(LOAD(ldd, %o1 + 0x038, %f14))
-
- faligndata %f8, %f10, %f24
- EX_LD(LOAD(ldd, %o1 + 0x040, %f0))
- LOAD(prefetch, %o1 + 0x1c0, #one_read)
- faligndata %f10, %f12, %f26
- bg,pt %XCC, 1b
- add %o1, 0x40, %o1
-
- /* Finally we copy the last full 64-byte block. */
-2:
- EX_LD(LOAD(ldd, %o1 + 0x008, %f2))
- faligndata %f12, %f14, %f28
- EX_LD(LOAD(ldd, %o1 + 0x010, %f4))
- faligndata %f14, %f0, %f30
- EX_ST(STORE_BLK(%f16, %o0))
- EX_LD(LOAD(ldd, %o1 + 0x018, %f6))
- faligndata %f0, %f2, %f16
- EX_LD(LOAD(ldd, %o1 + 0x020, %f8))
- faligndata %f2, %f4, %f18
- EX_LD(LOAD(ldd, %o1 + 0x028, %f10))
- faligndata %f4, %f6, %f20
- EX_LD(LOAD(ldd, %o1 + 0x030, %f12))
- faligndata %f6, %f8, %f22
- EX_LD(LOAD(ldd, %o1 + 0x038, %f14))
- faligndata %f8, %f10, %f24
- cmp %g1, 0
- be,pt %XCC, 1f
- add %o0, 0x40, %o0
- EX_LD(LOAD(ldd, %o1 + 0x040, %f0))
-1: faligndata %f10, %f12, %f26
- faligndata %f12, %f14, %f28
- faligndata %f14, %f0, %f30
- EX_ST(STORE_BLK(%f16, %o0))
- add %o0, 0x40, %o0
- add %o1, 0x40, %o1
- membar #Sync
-
- /* Now we copy the (len modulo 64) bytes at the end.
- * Note how we borrow the %f0 loaded above.
- *
- * Also notice how this code is careful not to perform a
- * load past the end of the src buffer.
- */
- and %o2, 0x3f, %o2
- andcc %o2, 0x38, %g2
- be,pn %XCC, 2f
- subcc %g2, 0x8, %g2
- be,pn %XCC, 2f
- cmp %g1, 0
-
- sub %o2, %g2, %o2
- be,a,pt %XCC, 1f
- EX_LD(LOAD(ldd, %o1 + 0x00, %f0))
-
-1: EX_LD(LOAD(ldd, %o1 + 0x08, %f2))
- add %o1, 0x8, %o1
- subcc %g2, 0x8, %g2
- faligndata %f0, %f2, %f8
- EX_ST(STORE(std, %f8, %o0))
- be,pn %XCC, 2f
- add %o0, 0x8, %o0
- EX_LD(LOAD(ldd, %o1 + 0x08, %f0))
- add %o1, 0x8, %o1
- subcc %g2, 0x8, %g2
- faligndata %f2, %f0, %f8
- EX_ST(STORE(std, %f8, %o0))
- bne,pn %XCC, 1b
- add %o0, 0x8, %o0
-
- /* If anything is left, we copy it one byte at a time.
- * Note that %g1 is (src & 0x3) saved above before the
- * alignaddr was performed.
- */
-2:
- cmp %o2, 0
- add %o1, %g1, %o1
- VISExitHalf
- be,pn %XCC, 85f
- sub %o0, %o1, %o3
-
- andcc %g1, 0x7, %g0
- bne,pn %icc, 90f
- andcc %o2, 0x8, %g0
- be,pt %icc, 1f
- nop
- EX_LD(LOAD(ldx, %o1, %o5))
- EX_ST(STORE(stx, %o5, %o1 + %o3))
- add %o1, 0x8, %o1
-
-1: andcc %o2, 0x4, %g0
- be,pt %icc, 1f
- nop
- EX_LD(LOAD(lduw, %o1, %o5))
- EX_ST(STORE(stw, %o5, %o1 + %o3))
- add %o1, 0x4, %o1
-
-1: andcc %o2, 0x2, %g0
- be,pt %icc, 1f
- nop
- EX_LD(LOAD(lduh, %o1, %o5))
- EX_ST(STORE(sth, %o5, %o1 + %o3))
- add %o1, 0x2, %o1
-
-1: andcc %o2, 0x1, %g0
- be,pt %icc, 85f
- nop
- EX_LD(LOAD(ldub, %o1, %o5))
- ba,pt %xcc, 85f
- EX_ST(STORE(stb, %o5, %o1 + %o3))
-
- .align 64
-70: /* 16 < len <= 64 */
- bne,pn %XCC, 75f
- sub %o0, %o1, %o3
-
-72:
- andn %o2, 0xf, GLOBAL_SPARE
- and %o2, 0xf, %o2
-1: subcc GLOBAL_SPARE, 0x10, GLOBAL_SPARE
- EX_LD(LOAD(ldx, %o1 + 0x00, %o5))
- EX_LD(LOAD(ldx, %o1 + 0x08, %g1))
- EX_ST(STORE(stx, %o5, %o1 + %o3))
- add %o1, 0x8, %o1
- EX_ST(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
- EX_LD(LOAD(ldx, %o1, %o5))
- EX_ST(STORE(stx, %o5, %o1 + %o3))
- add %o1, 0x8, %o1
-1: andcc %o2, 0x4, %g0
- be,pt %XCC, 1f
- nop
- sub %o2, 0x4, %o2
- EX_LD(LOAD(lduw, %o1, %o5))
- EX_ST(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
- EX_LD(LOAD(ldub, %o1, %o5))
- EX_ST(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
- EX_LD(LOAD(ldx, %o1, %g2))
- sub %o3, %g1, %o3
- andn %o2, 0x7, GLOBAL_SPARE
- sllx %g2, %g1, %g2
-1: EX_LD(LOAD(ldx, %o1 + 0x8, %g3))
- subcc GLOBAL_SPARE, 0x8, GLOBAL_SPARE
- add %o1, 0x8, %o1
- srlx %g3, %o3, %o5
- or %o5, %g2, %o5
- EX_ST(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
- EX_LD(LOAD(lduw, %o1, %g1))
- EX_ST(STORE(stw, %g1, %o1 + %o3))
- bgu,pt %XCC, 1b
- add %o1, 4, %o1
-
-85: retl
- mov EX_RETVAL(%o4), %o0
-
- .align 32
-90:
- subcc %o2, 1, %o2
- EX_LD(LOAD(ldub, %o1, %g1))
- EX_ST(STORE(stb, %g1, %o1 + %o3))
- bgu,pt %XCC, 90b
- add %o1, 1, %o1
- retl
- mov EX_RETVAL(%o4), %o0
-
- .size FUNC_NAME, .-FUNC_NAME