diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2008-12-03 03:10:25 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-12-04 09:17:19 -0800 |
commit | 478b8fecda511942404ac232897a718cecd13e48 (patch) | |
tree | e022fce8ca92f93a000e1cd686255f0b126e9fd5 /arch/sparc64/lib/U3memcpy.S | |
parent | 18269c0fd4db9bec2668f895f21d742486ccb90f (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.S | 422 |
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 |