xor.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:5k
- /*
- * include/asm-ia64/xor.h
- *
- * Optimized RAID-5 checksumming functions for IA-64.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * You should have received a copy of the GNU General Public License
- * (for example /usr/src/linux/COPYING); if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- extern void xor_ia64_2(unsigned long, unsigned long *, unsigned long *);
- extern void xor_ia64_3(unsigned long, unsigned long *, unsigned long *,
- unsigned long *);
- extern void xor_ia64_4(unsigned long, unsigned long *, unsigned long *,
- unsigned long *, unsigned long *);
- extern void xor_ia64_5(unsigned long, unsigned long *, unsigned long *,
- unsigned long *, unsigned long *, unsigned long *);
- asm ("
- .text
- // Assume L2 memory latency of 6 cycles.
- .proc xor_ia64_2
- xor_ia64_2:
- .prologue
- .fframe 0
- { .mii
- .save ar.pfs, r31
- alloc r31 = ar.pfs, 3, 0, 13, 16
- .save ar.lc, r30
- mov r30 = ar.lc
- .save pr, r29
- mov r29 = pr
- ;;
- }
- .body
- { .mii
- mov r8 = in1
- mov ar.ec = 6 + 2
- shr in0 = in0, 3
- ;;
- }
- { .mmi
- adds in0 = -1, in0
- mov r16 = in1
- mov r17 = in2
- ;;
- }
- { .mii
- mov ar.lc = in0
- mov pr.rot = 1 << 16
- ;;
- }
- .rotr s1[6+1], s2[6+1], d[2]
- .rotp p[6+2]
- 0: { .mmi
- (p[0]) ld8.nta s1[0] = [r16], 8
- (p[0]) ld8.nta s2[0] = [r17], 8
- (p[6]) xor d[0] = s1[6], s2[6]
- }
- { .mfb
- (p[6+1]) st8.nta [r8] = d[1], 8
- nop.f 0
- br.ctop.dptk.few 0b
- ;;
- }
- { .mii
- mov ar.lc = r30
- mov pr = r29, -1
- }
- { .bbb
- br.ret.sptk.few rp
- }
- .endp xor_ia64_2
- .proc xor_ia64_3
- xor_ia64_3:
- .prologue
- .fframe 0
- { .mii
- .save ar.pfs, r31
- alloc r31 = ar.pfs, 4, 0, 20, 24
- .save ar.lc, r30
- mov r30 = ar.lc
- .save pr, r29
- mov r29 = pr
- ;;
- }
- .body
- { .mii
- mov r8 = in1
- mov ar.ec = 6 + 2
- shr in0 = in0, 3
- ;;
- }
- { .mmi
- adds in0 = -1, in0
- mov r16 = in1
- mov r17 = in2
- ;;
- }
- { .mii
- mov r18 = in3
- mov ar.lc = in0
- mov pr.rot = 1 << 16
- ;;
- }
- .rotr s1[6+1], s2[6+1], s3[6+1], d[2]
- .rotp p[6+2]
- 0: { .mmi
- (p[0]) ld8.nta s1[0] = [r16], 8
- (p[0]) ld8.nta s2[0] = [r17], 8
- (p[6]) xor d[0] = s1[6], s2[6]
- ;;
- }
- { .mmi
- (p[0]) ld8.nta s3[0] = [r18], 8
- (p[6+1]) st8.nta [r8] = d[1], 8
- (p[6]) xor d[0] = d[0], s3[6]
- }
- { .bbb
- br.ctop.dptk.few 0b
- ;;
- }
- { .mii
- mov ar.lc = r30
- mov pr = r29, -1
- }
- { .bbb
- br.ret.sptk.few rp
- }
- .endp xor_ia64_3
- .proc xor_ia64_4
- xor_ia64_4:
- .prologue
- .fframe 0
- { .mii
- .save ar.pfs, r31
- alloc r31 = ar.pfs, 5, 0, 27, 32
- .save ar.lc, r30
- mov r30 = ar.lc
- .save pr, r29
- mov r29 = pr
- ;;
- }
- .body
- { .mii
- mov r8 = in1
- mov ar.ec = 6 + 2
- shr in0 = in0, 3
- ;;
- }
- { .mmi
- adds in0 = -1, in0
- mov r16 = in1
- mov r17 = in2
- ;;
- }
- { .mii
- mov r18 = in3
- mov ar.lc = in0
- mov pr.rot = 1 << 16
- }
- { .mfb
- mov r19 = in4
- ;;
- }
- .rotr s1[6+1], s2[6+1], s3[6+1], s4[6+1], d[2]
- .rotp p[6+2]
- 0: { .mmi
- (p[0]) ld8.nta s1[0] = [r16], 8
- (p[0]) ld8.nta s2[0] = [r17], 8
- (p[6]) xor d[0] = s1[6], s2[6]
- }
- { .mmi
- (p[0]) ld8.nta s3[0] = [r18], 8
- (p[0]) ld8.nta s4[0] = [r19], 8
- (p[6]) xor r20 = s3[6], s4[6]
- ;;
- }
- { .mib
- (p[6+1]) st8.nta [r8] = d[1], 8
- (p[6]) xor d[0] = d[0], r20
- br.ctop.dptk.few 0b
- ;;
- }
- { .mii
- mov ar.lc = r30
- mov pr = r29, -1
- }
- { .bbb
- br.ret.sptk.few rp
- }
- .endp xor_ia64_4
- .proc xor_ia64_5
- xor_ia64_5:
- .prologue
- .fframe 0
- { .mii
- .save ar.pfs, r31
- alloc r31 = ar.pfs, 6, 0, 34, 40
- .save ar.lc, r30
- mov r30 = ar.lc
- .save pr, r29
- mov r29 = pr
- ;;
- }
- .body
- { .mii
- mov r8 = in1
- mov ar.ec = 6 + 2
- shr in0 = in0, 3
- ;;
- }
- { .mmi
- adds in0 = -1, in0
- mov r16 = in1
- mov r17 = in2
- ;;
- }
- { .mii
- mov r18 = in3
- mov ar.lc = in0
- mov pr.rot = 1 << 16
- }
- { .mib
- mov r19 = in4
- mov r20 = in5
- ;;
- }
- .rotr s1[6+1], s2[6+1], s3[6+1], s4[6+1], s5[6+1], d[2]
- .rotp p[6+2]
- 0: { .mmi
- (p[0]) ld8.nta s1[0] = [r16], 8
- (p[0]) ld8.nta s2[0] = [r17], 8
- (p[6]) xor d[0] = s1[6], s2[6]
- }
- { .mmi
- (p[0]) ld8.nta s3[0] = [r18], 8
- (p[0]) ld8.nta s4[0] = [r19], 8
- (p[6]) xor r21 = s3[6], s4[6]
- ;;
- }
- { .mmi
- (p[0]) ld8.nta s5[0] = [r20], 8
- (p[6+1]) st8.nta [r8] = d[1], 8
- (p[6]) xor d[0] = d[0], r21
- ;;
- }
- { .mfb
- (p[6]) xor d[0] = d[0], s5[6]
- nop.f 0
- br.ctop.dptk.few 0b
- ;;
- }
- { .mii
- mov ar.lc = r30
- mov pr = r29, -1
- }
- { .bbb
- br.ret.sptk.few rp
- }
- .endp xor_ia64_5
- ");
- static struct xor_block_template xor_block_ia64 = {
- name: "ia64",
- do_2: xor_ia64_2,
- do_3: xor_ia64_3,
- do_4: xor_ia64_4,
- do_5: xor_ia64_5,
- };
- #define XOR_TRY_TEMPLATES xor_speed(&xor_block_ia64)