1 files changed, 184 insertions, 0 deletions

diff --git a/arch/ia64/lib/xor.S b/arch/ia64/lib/xor.S
new file mode 100644
index 000000000000..54e3f7eab8e9
--- /dev/null
+++ b/arch/ia64/lib/xor.S
@@ -0,0 +1,184 @@
+/*
+ * arch/ia64/lib/xor.S
+ *
+ * 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.
+ */
+
+#include <asm/asmmacro.h>
+
+GLOBAL_ENTRY(xor_ia64_2)
+        .prologue
+        .fframe 0
+        .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
+        mov r8 = in1
+        mov ar.ec = 6 + 2
+        shr in0 = in0, 3
+        ;;
+        adds in0 = -1, in0
+        mov r16 = in1
+        mov r17 = in2
+        ;;
+        mov ar.lc = in0
+        mov pr.rot = 1 << 16
+        ;;
+        .rotr s1[6+1], s2[6+1], d[2]
+        .rotp p[6+2]
+0:
+(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]
+(p[6+1])st8.nta [r8] = d[1], 8
+        nop.f 0
+        br.ctop.dptk.few 0b
+        ;;
+        mov ar.lc = r30
+        mov pr = r29, -1
+        br.ret.sptk.few rp
+END(xor_ia64_2)
+
+GLOBAL_ENTRY(xor_ia64_3)
+        .prologue
+        .fframe 0
+        .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
+        mov r8 = in1
+        mov ar.ec = 6 + 2
+        shr in0 = in0, 3
+        ;;
+        adds in0 = -1, in0
+        mov r16 = in1
+        mov r17 = in2
+        ;;
+        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:
+(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]
+        ;;
+(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]
+        br.ctop.dptk.few 0b
+        ;;
+        mov ar.lc = r30
+        mov pr = r29, -1
+        br.ret.sptk.few rp
+END(xor_ia64_3)
+
+GLOBAL_ENTRY(xor_ia64_4)
+        .prologue
+        .fframe 0
+        .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
+        mov r8 = in1
+        mov ar.ec = 6 + 2
+        shr in0 = in0, 3
+        ;;
+        adds in0 = -1, in0
+        mov r16 = in1
+        mov r17 = in2
+        ;;
+        mov r18 = in3
+        mov ar.lc = in0
+        mov pr.rot = 1 << 16
+        mov r19 = in4
+        ;;
+        .rotr s1[6+1], s2[6+1], s3[6+1], s4[6+1], d[2]
+        .rotp p[6+2]
+0:
+(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]
+(p[0])  ld8.nta s3[0] = [r18], 8
+(p[0])  ld8.nta s4[0] = [r19], 8
+(p[6])  xor r20 = s3[6], s4[6]
+        ;;
+(p[6+1])st8.nta [r8] = d[1], 8
+(p[6])  xor d[0] = d[0], r20
+        br.ctop.dptk.few 0b
+        ;;
+        mov ar.lc = r30
+        mov pr = r29, -1
+        br.ret.sptk.few rp
+END(xor_ia64_4)
+
+GLOBAL_ENTRY(xor_ia64_5)
+        .prologue
+        .fframe 0
+        .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
+        mov r8 = in1
+        mov ar.ec = 6 + 2
+        shr in0 = in0, 3
+        ;;
+        adds in0 = -1, in0
+        mov r16 = in1
+        mov r17 = in2
+        ;;
+        mov r18 = in3
+        mov ar.lc = in0
+        mov pr.rot = 1 << 16
+        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:
+(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]
+(p[0])  ld8.nta s3[0] = [r18], 8
+(p[0])  ld8.nta s4[0] = [r19], 8
+(p[6])  xor r21 = s3[6], s4[6]
+        ;;
+(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
+        ;;
+(p[6])    xor d[0] = d[0], s5[6]
+        nop.f 0
+        br.ctop.dptk.few 0b
+        ;;
+        mov ar.lc = r30
+        mov pr = r29, -1
+        br.ret.sptk.few rp
+END(xor_ia64_5)