patch-2.4.0-test11 linux/include/asm-alpha/xor.h

• Lines: 856
• Date: Sun Nov 12 19:39:51 2000
• Orig file: v2.4.0-test10/linux/include/asm-alpha/xor.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test10/linux/include/asm-alpha/xor.h linux/include/asm-alpha/xor.h
@@ -0,0 +1,855 @@
+/*
+ * include/asm-alpha/xor.h
+ *
+ * Optimized RAID-5 checksumming functions for alpha EV5 and EV6
+ *
+ * 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_alpha_2(unsigned long, unsigned long *, unsigned long *);
+extern void xor_alpha_3(unsigned long, unsigned long *, unsigned long *,
+		        unsigned long *);
+extern void xor_alpha_4(unsigned long, unsigned long *, unsigned long *,
+		        unsigned long *, unsigned long *);
+extern void xor_alpha_5(unsigned long, unsigned long *, unsigned long *,
+		        unsigned long *, unsigned long *, unsigned long *);
+
+extern void xor_alpha_prefetch_2(unsigned long, unsigned long *,
+				 unsigned long *);
+extern void xor_alpha_prefetch_3(unsigned long, unsigned long *,
+				 unsigned long *, unsigned long *);
+extern void xor_alpha_prefetch_4(unsigned long, unsigned long *,
+				 unsigned long *, unsigned long *,
+				 unsigned long *);
+extern void xor_alpha_prefetch_5(unsigned long, unsigned long *,
+				 unsigned long *, unsigned long *,
+				 unsigned long *, unsigned long *);
+
+asm("
+	.text
+	.align 3
+	.ent xor_alpha_2
+xor_alpha_2:
+	.prologue 0
+	srl $16, 6, $16
+	.align 4
+2:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,8($17)
+	ldq $3,8($18)
+
+	ldq $4,16($17)
+	ldq $5,16($18)
+	ldq $6,24($17)
+	ldq $7,24($18)
+
+	ldq $19,32($17)
+	ldq $20,32($18)
+	ldq $21,40($17)
+	ldq $22,40($18)
+
+	ldq $23,48($17)
+	ldq $24,48($18)
+	ldq $25,56($17)
+	xor $0,$1,$0		# 7 cycles from $1 load
+
+	ldq $27,56($18)
+	xor $2,$3,$2
+	stq $0,0($17)
+	xor $4,$5,$4
+
+	stq $2,8($17)
+	xor $6,$7,$6
+	stq $4,16($17)
+	xor $19,$20,$19
+
+	stq $6,24($17)
+	xor $21,$22,$21
+	stq $19,32($17)
+	xor $23,$24,$23
+
+	stq $21,40($17)
+	xor $25,$27,$25
+	stq $23,48($17)
+	subq $16,1,$16
+
+	stq $25,56($17)
+	addq $17,64,$17
+	addq $18,64,$18
+	bgt $16,2b
+
+	ret
+	.end xor_alpha_2
+
+	.align 3
+	.ent xor_alpha_3
+xor_alpha_3:
+	.prologue 0
+	srl $16, 6, $16
+	.align 4
+3:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,0($19)
+	ldq $3,8($17)
+
+	ldq $4,8($18)
+	ldq $6,16($17)
+	ldq $7,16($18)
+	ldq $21,24($17)
+
+	ldq $22,24($18)
+	ldq $24,32($17)
+	ldq $25,32($18)
+	ldq $5,8($19)
+
+	ldq $20,16($19)
+	ldq $23,24($19)
+	ldq $27,32($19)
+	nop
+
+	xor $0,$1,$1		# 8 cycles from $0 load
+	xor $3,$4,$4		# 6 cycles from $4 load
+	xor $6,$7,$7		# 6 cycles from $7 load
+	xor $21,$22,$22		# 5 cycles from $22 load
+
+	xor $1,$2,$2		# 9 cycles from $2 load
+	xor $24,$25,$25		# 5 cycles from $25 load
+	stq $2,0($17)
+	xor $4,$5,$5		# 6 cycles from $5 load
+
+	stq $5,8($17)
+	xor $7,$20,$20		# 7 cycles from $20 load
+	stq $20,16($17)
+	xor $22,$23,$23		# 7 cycles from $23 load
+
+	stq $23,24($17)
+	xor $25,$27,$27		# 7 cycles from $27 load
+	stq $27,32($17)
+	nop
+
+	ldq $0,40($17)
+	ldq $1,40($18)
+	ldq $3,48($17)
+	ldq $4,48($18)
+
+	ldq $6,56($17)
+	ldq $7,56($18)
+	ldq $2,40($19)
+	ldq $5,48($19)
+
+	ldq $20,56($19)
+	xor $0,$1,$1		# 4 cycles from $1 load
+	xor $3,$4,$4		# 5 cycles from $4 load
+	xor $6,$7,$7		# 5 cycles from $7 load
+
+	xor $1,$2,$2		# 4 cycles from $2 load
+	xor $4,$5,$5		# 5 cycles from $5 load
+	stq $2,40($17)
+	xor $7,$20,$20		# 4 cycles from $20 load
+
+	stq $5,48($17)
+	subq $16,1,$16
+	stq $20,56($17)
+	addq $19,64,$19
+
+	addq $18,64,$18
+	addq $17,64,$17
+	bgt $16,3b
+	ret
+	.end xor_alpha_3
+
+	.align 3
+	.ent xor_alpha_4
+xor_alpha_4:
+	.prologue 0
+	srl $16, 6, $16
+	.align 4
+4:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,0($19)
+	ldq $3,0($20)
+
+	ldq $4,8($17)
+	ldq $5,8($18)
+	ldq $6,8($19)
+	ldq $7,8($20)
+
+	ldq $21,16($17)
+	ldq $22,16($18)
+	ldq $23,16($19)
+	ldq $24,16($20)
+
+	ldq $25,24($17)
+	xor $0,$1,$1		# 6 cycles from $1 load
+	ldq $27,24($18)
+	xor $2,$3,$3		# 6 cycles from $3 load
+
+	ldq $0,24($19)
+	xor $1,$3,$3
+	ldq $1,24($20)
+	xor $4,$5,$5		# 7 cycles from $5 load
+
+	stq $3,0($17)
+	xor $6,$7,$7
+	xor $21,$22,$22		# 7 cycles from $22 load
+	xor $5,$7,$7
+
+	stq $7,8($17)
+	xor $23,$24,$24		# 7 cycles from $24 load
+	ldq $2,32($17)
+	xor $22,$24,$24
+
+	ldq $3,32($18)
+	ldq $4,32($19)
+	ldq $5,32($20)
+	xor $25,$27,$27		# 8 cycles from $27 load
+
+	ldq $6,40($17)
+	ldq $7,40($18)
+	ldq $21,40($19)
+	ldq $22,40($20)
+
+	stq $24,16($17)
+	xor $0,$1,$1		# 9 cycles from $1 load
+	xor $2,$3,$3		# 5 cycles from $3 load
+	xor $27,$1,$1
+
+	stq $1,24($17)
+	xor $4,$5,$5		# 5 cycles from $5 load
+	ldq $23,48($17)
+	ldq $24,48($18)
+
+	ldq $25,48($19)
+	xor $3,$5,$5
+	ldq $27,48($20)
+	ldq $0,56($17)
+
+	ldq $1,56($18)
+	ldq $2,56($19)
+	xor $6,$7,$7		# 8 cycles from $6 load
+	ldq $3,56($20)
+
+	stq $5,32($17)
+	xor $21,$22,$22		# 8 cycles from $22 load
+	xor $7,$22,$22
+	xor $23,$24,$24		# 5 cycles from $24 load
+
+	stq $22,40($17)
+	xor $25,$27,$27		# 5 cycles from $27 load
+	xor $24,$27,$27
+	xor $0,$1,$1		# 5 cycles from $1 load
+
+	stq $27,48($17)
+	xor $2,$3,$3		# 4 cycles from $3 load
+	xor $1,$3,$3
+	subq $16,1,$16
+
+	stq $3,56($17)
+	addq $20,64,$20
+	addq $19,64,$19
+	addq $18,64,$18
+
+	addq $17,64,$17
+	bgt $16,4b
+	ret
+	.end xor_alpha_4
+
+	.align 3
+	.ent xor_alpha_5
+xor_alpha_5:
+	.prologue 0
+	srl $16, 6, $16
+	.align 4
+5:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,0($19)
+	ldq $3,0($20)
+
+	ldq $4,0($21)
+	ldq $5,8($17)
+	ldq $6,8($18)
+	ldq $7,8($19)
+
+	ldq $22,8($20)
+	ldq $23,8($21)
+	ldq $24,16($17)
+	ldq $25,16($18)
+
+	ldq $27,16($19)
+	xor $0,$1,$1		# 6 cycles from $1 load
+	ldq $28,16($20)
+	xor $2,$3,$3		# 6 cycles from $3 load
+
+	ldq $0,16($21)
+	xor $1,$3,$3
+	ldq $1,24($17)
+	xor $3,$4,$4		# 7 cycles from $4 load
+
+	stq $4,0($17)
+	xor $5,$6,$6		# 7 cycles from $6 load
+	xor $7,$22,$22		# 7 cycles from $22 load
+	xor $6,$23,$23		# 7 cycles from $23 load
+
+	ldq $2,24($18)
+	xor $22,$23,$23
+	ldq $3,24($19)
+	xor $24,$25,$25		# 8 cycles from $25 load
+
+	stq $23,8($17)
+	xor $25,$27,$27		# 8 cycles from $27 load
+	ldq $4,24($20)
+	xor $28,$0,$0		# 7 cycles from $0 load
+
+	ldq $5,24($21)
+	xor $27,$0,$0
+	ldq $6,32($17)
+	ldq $7,32($18)
+
+	stq $0,16($17)
+	xor $1,$2,$2		# 6 cycles from $2 load
+	ldq $22,32($19)
+	xor $3,$4,$4		# 4 cycles from $4 load
+	
+	ldq $23,32($20)
+	xor $2,$4,$4
+	ldq $24,32($21)
+	ldq $25,40($17)
+
+	ldq $27,40($18)
+	ldq $28,40($19)
+	ldq $0,40($20)
+	xor $4,$5,$5		# 7 cycles from $5 load
+
+	stq $5,24($17)
+	xor $6,$7,$7		# 7 cycles from $7 load
+	ldq $1,40($21)
+	ldq $2,48($17)
+
+	ldq $3,48($18)
+	xor $7,$22,$22		# 7 cycles from $22 load
+	ldq $4,48($19)
+	xor $23,$24,$24		# 6 cycles from $24 load
+
+	ldq $5,48($20)
+	xor $22,$24,$24
+	ldq $6,48($21)
+	xor $25,$27,$27		# 7 cycles from $27 load
+
+	stq $24,32($17)
+	xor $27,$28,$28		# 8 cycles from $28 load
+	ldq $7,56($17)
+	xor $0,$1,$1		# 6 cycles from $1 load
+
+	ldq $22,56($18)
+	ldq $23,56($19)
+	ldq $24,56($20)
+	ldq $25,56($21)
+
+	xor $28,$1,$1
+	xor $2,$3,$3		# 9 cycles from $3 load
+	xor $3,$4,$4		# 9 cycles from $4 load
+	xor $5,$6,$6		# 8 cycles from $6 load
+
+	stq $1,40($17)
+	xor $4,$6,$6
+	xor $7,$22,$22		# 7 cycles from $22 load
+	xor $23,$24,$24		# 6 cycles from $24 load
+
+	stq $6,48($17)
+	xor $22,$24,$24
+	subq $16,1,$16
+	xor $24,$25,$25		# 8 cycles from $25 load
+
+	stq $25,56($17)
+	addq $21,64,$21
+	addq $20,64,$20
+	addq $19,64,$19
+
+	addq $18,64,$18
+	addq $17,64,$17
+	bgt $16,5b
+	ret
+	.end xor_alpha_5
+
+	.align 3
+	.ent xor_alpha_prefetch_2
+xor_alpha_prefetch_2:
+	.prologue 0
+	srl $16, 6, $16
+
+	ldq $31, 0($17)
+	ldq $31, 0($18)
+
+	ldq $31, 64($17)
+	ldq $31, 64($18)
+
+	ldq $31, 128($17)
+	ldq $31, 128($18)
+
+	ldq $31, 192($17)
+	ldq $31, 192($18)
+	.align 4
+2:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,8($17)
+	ldq $3,8($18)
+
+	ldq $4,16($17)
+	ldq $5,16($18)
+	ldq $6,24($17)
+	ldq $7,24($18)
+
+	ldq $19,32($17)
+	ldq $20,32($18)
+	ldq $21,40($17)
+	ldq $22,40($18)
+
+	ldq $23,48($17)
+	ldq $24,48($18)
+	ldq $25,56($17)
+	ldq $27,56($18)
+
+	ldq $31,256($17)
+	xor $0,$1,$0		# 8 cycles from $1 load
+	ldq $31,256($18)
+	xor $2,$3,$2
+
+	stq $0,0($17)
+	xor $4,$5,$4
+	stq $2,8($17)
+	xor $6,$7,$6
+
+	stq $4,16($17)
+	xor $19,$20,$19
+	stq $6,24($17)
+	xor $21,$22,$21
+
+	stq $19,32($17)
+	xor $23,$24,$23
+	stq $21,40($17)
+	xor $25,$27,$25
+
+	stq $23,48($17)
+	subq $16,1,$16
+	stq $25,56($17)
+	addq $17,64,$17
+
+	addq $18,64,$18
+	bgt $16,2b
+	ret
+	.end xor_alpha_prefetch_2
+
+	.align 3
+	.ent xor_alpha_prefetch_3
+xor_alpha_prefetch_3:
+	.prologue 0
+	srl $16, 6, $16
+
+	ldq $31, 0($17)
+	ldq $31, 0($18)
+	ldq $31, 0($19)
+
+	ldq $31, 64($17)
+	ldq $31, 64($18)
+	ldq $31, 64($19)
+
+	ldq $31, 128($17)
+	ldq $31, 128($18)
+	ldq $31, 128($19)
+
+	ldq $31, 192($17)
+	ldq $31, 192($18)
+	ldq $31, 192($19)
+	.align 4
+3:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,0($19)
+	ldq $3,8($17)
+
+	ldq $4,8($18)
+	ldq $6,16($17)
+	ldq $7,16($18)
+	ldq $21,24($17)
+
+	ldq $22,24($18)
+	ldq $24,32($17)
+	ldq $25,32($18)
+	ldq $5,8($19)
+
+	ldq $20,16($19)
+	ldq $23,24($19)
+	ldq $27,32($19)
+	nop
+
+	xor $0,$1,$1		# 8 cycles from $0 load
+	xor $3,$4,$4		# 7 cycles from $4 load
+	xor $6,$7,$7		# 6 cycles from $7 load
+	xor $21,$22,$22		# 5 cycles from $22 load
+
+	xor $1,$2,$2		# 9 cycles from $2 load
+	xor $24,$25,$25		# 5 cycles from $25 load
+	stq $2,0($17)
+	xor $4,$5,$5		# 6 cycles from $5 load
+
+	stq $5,8($17)
+	xor $7,$20,$20		# 7 cycles from $20 load
+	stq $20,16($17)
+	xor $22,$23,$23		# 7 cycles from $23 load
+
+	stq $23,24($17)
+	xor $25,$27,$27		# 7 cycles from $27 load
+	stq $27,32($17)
+	nop
+
+	ldq $0,40($17)
+	ldq $1,40($18)
+	ldq $3,48($17)
+	ldq $4,48($18)
+
+	ldq $6,56($17)
+	ldq $7,56($18)
+	ldq $2,40($19)
+	ldq $5,48($19)
+
+	ldq $20,56($19)
+	ldq $31,256($17)
+	ldq $31,256($18)
+	ldq $31,256($19)
+
+	xor $0,$1,$1		# 6 cycles from $1 load
+	xor $3,$4,$4		# 5 cycles from $4 load
+	xor $6,$7,$7		# 5 cycles from $7 load
+	xor $1,$2,$2		# 4 cycles from $2 load
+	
+	xor $4,$5,$5		# 5 cycles from $5 load
+	xor $7,$20,$20		# 4 cycles from $20 load
+	stq $2,40($17)
+	subq $16,1,$16
+
+	stq $5,48($17)
+	addq $19,64,$19
+	stq $20,56($17)
+	addq $18,64,$18
+
+	addq $17,64,$17
+	bgt $16,3b
+	ret
+	.end xor_alpha_prefetch_3
+
+	.align 3
+	.ent xor_alpha_prefetch_4
+xor_alpha_prefetch_4:
+	.prologue 0
+	srl $16, 6, $16
+
+	ldq $31, 0($17)
+	ldq $31, 0($18)
+	ldq $31, 0($19)
+	ldq $31, 0($20)
+
+	ldq $31, 64($17)
+	ldq $31, 64($18)
+	ldq $31, 64($19)
+	ldq $31, 64($20)
+
+	ldq $31, 128($17)
+	ldq $31, 128($18)
+	ldq $31, 128($19)
+	ldq $31, 128($20)
+
+	ldq $31, 192($17)
+	ldq $31, 192($18)
+	ldq $31, 192($19)
+	ldq $31, 192($20)
+	.align 4
+4:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,0($19)
+	ldq $3,0($20)
+
+	ldq $4,8($17)
+	ldq $5,8($18)
+	ldq $6,8($19)
+	ldq $7,8($20)
+
+	ldq $21,16($17)
+	ldq $22,16($18)
+	ldq $23,16($19)
+	ldq $24,16($20)
+
+	ldq $25,24($17)
+	xor $0,$1,$1		# 6 cycles from $1 load
+	ldq $27,24($18)
+	xor $2,$3,$3		# 6 cycles from $3 load
+
+	ldq $0,24($19)
+	xor $1,$3,$3
+	ldq $1,24($20)
+	xor $4,$5,$5		# 7 cycles from $5 load
+
+	stq $3,0($17)
+	xor $6,$7,$7
+	xor $21,$22,$22		# 7 cycles from $22 load
+	xor $5,$7,$7
+
+	stq $7,8($17)
+	xor $23,$24,$24		# 7 cycles from $24 load
+	ldq $2,32($17)
+	xor $22,$24,$24
+
+	ldq $3,32($18)
+	ldq $4,32($19)
+	ldq $5,32($20)
+	xor $25,$27,$27		# 8 cycles from $27 load
+
+	ldq $6,40($17)
+	ldq $7,40($18)
+	ldq $21,40($19)
+	ldq $22,40($20)
+
+	stq $24,16($17)
+	xor $0,$1,$1		# 9 cycles from $1 load
+	xor $2,$3,$3		# 5 cycles from $3 load
+	xor $27,$1,$1
+
+	stq $1,24($17)
+	xor $4,$5,$5		# 5 cycles from $5 load
+	ldq $23,48($17)
+	xor $3,$5,$5
+
+	ldq $24,48($18)
+	ldq $25,48($19)
+	ldq $27,48($20)
+	ldq $0,56($17)
+
+	ldq $1,56($18)
+	ldq $2,56($19)
+	ldq $3,56($20)
+	xor $6,$7,$7		# 8 cycles from $6 load
+
+	ldq $31,256($17)
+	xor $21,$22,$22		# 8 cycles from $22 load
+	ldq $31,256($18)
+	xor $7,$22,$22
+
+	ldq $31,256($19)
+	xor $23,$24,$24		# 6 cycles from $24 load
+	ldq $31,256($20)
+	xor $25,$27,$27		# 6 cycles from $27 load
+
+	stq $5,32($17)
+	xor $24,$27,$27
+	xor $0,$1,$1		# 7 cycles from $1 load
+	xor $2,$3,$3		# 6 cycles from $3 load
+
+	stq $22,40($17)
+	xor $1,$3,$3
+	stq $27,48($17)
+	subq $16,1,$16
+
+	stq $3,56($17)
+	addq $20,64,$20
+	addq $19,64,$19
+	addq $18,64,$18
+
+	addq $17,64,$17
+	bgt $16,4b
+	ret
+	.end xor_alpha_prefetch_4
+
+	.align 3
+	.ent xor_alpha_prefetch_5
+xor_alpha_prefetch_5:
+	.prologue 0
+	srl $16, 6, $16
+
+	ldq $31, 0($17)
+	ldq $31, 0($18)
+	ldq $31, 0($19)
+	ldq $31, 0($20)
+	ldq $31, 0($21)
+
+	ldq $31, 64($17)
+	ldq $31, 64($18)
+	ldq $31, 64($19)
+	ldq $31, 64($20)
+	ldq $31, 64($21)
+
+	ldq $31, 128($17)
+	ldq $31, 128($18)
+	ldq $31, 128($19)
+	ldq $31, 128($20)
+	ldq $31, 128($21)
+
+	ldq $31, 192($17)
+	ldq $31, 192($18)
+	ldq $31, 192($19)
+	ldq $31, 192($20)
+	ldq $31, 192($21)
+	.align 4
+5:
+	ldq $0,0($17)
+	ldq $1,0($18)
+	ldq $2,0($19)
+	ldq $3,0($20)
+
+	ldq $4,0($21)
+	ldq $5,8($17)
+	ldq $6,8($18)
+	ldq $7,8($19)
+
+	ldq $22,8($20)
+	ldq $23,8($21)
+	ldq $24,16($17)
+	ldq $25,16($18)
+
+	ldq $27,16($19)
+	xor $0,$1,$1		# 6 cycles from $1 load
+	ldq $28,16($20)
+	xor $2,$3,$3		# 6 cycles from $3 load
+
+	ldq $0,16($21)
+	xor $1,$3,$3
+	ldq $1,24($17)
+	xor $3,$4,$4		# 7 cycles from $4 load
+
+	stq $4,0($17)
+	xor $5,$6,$6		# 7 cycles from $6 load
+	xor $7,$22,$22		# 7 cycles from $22 load
+	xor $6,$23,$23		# 7 cycles from $23 load
+
+	ldq $2,24($18)
+	xor $22,$23,$23
+	ldq $3,24($19)
+	xor $24,$25,$25		# 8 cycles from $25 load
+
+	stq $23,8($17)
+	xor $25,$27,$27		# 8 cycles from $27 load
+	ldq $4,24($20)
+	xor $28,$0,$0		# 7 cycles from $0 load
+
+	ldq $5,24($21)
+	xor $27,$0,$0
+	ldq $6,32($17)
+	ldq $7,32($18)
+
+	stq $0,16($17)
+	xor $1,$2,$2		# 6 cycles from $2 load
+	ldq $22,32($19)
+	xor $3,$4,$4		# 4 cycles from $4 load
+	
+	ldq $23,32($20)
+	xor $2,$4,$4
+	ldq $24,32($21)
+	ldq $25,40($17)
+
+	ldq $27,40($18)
+	ldq $28,40($19)
+	ldq $0,40($20)
+	xor $4,$5,$5		# 7 cycles from $5 load
+
+	stq $5,24($17)
+	xor $6,$7,$7		# 7 cycles from $7 load
+	ldq $1,40($21)
+	ldq $2,48($17)
+
+	ldq $3,48($18)
+	xor $7,$22,$22		# 7 cycles from $22 load
+	ldq $4,48($19)
+	xor $23,$24,$24		# 6 cycles from $24 load
+
+	ldq $5,48($20)
+	xor $22,$24,$24
+	ldq $6,48($21)
+	xor $25,$27,$27		# 7 cycles from $27 load
+
+	stq $24,32($17)
+	xor $27,$28,$28		# 8 cycles from $28 load
+	ldq $7,56($17)
+	xor $0,$1,$1		# 6 cycles from $1 load
+
+	ldq $22,56($18)
+	ldq $23,56($19)
+	ldq $24,56($20)
+	ldq $25,56($21)
+
+	ldq $31,256($17)
+	xor $28,$1,$1
+	ldq $31,256($18)
+	xor $2,$3,$3		# 9 cycles from $3 load
+
+	ldq $31,256($19)
+	xor $3,$4,$4		# 9 cycles from $4 load
+	ldq $31,256($20)
+	xor $5,$6,$6		# 8 cycles from $6 load
+
+	stq $1,40($17)
+	xor $4,$6,$6
+	xor $7,$22,$22		# 7 cycles from $22 load
+	xor $23,$24,$24		# 6 cycles from $24 load
+
+	stq $6,48($17)
+	xor $22,$24,$24
+	ldq $31,256($21)
+	xor $24,$25,$25		# 8 cycles from $25 load
+
+	stq $25,56($17)
+	subq $16,1,$16
+	addq $21,64,$21
+	addq $20,64,$20
+
+	addq $19,64,$19
+	addq $18,64,$18
+	addq $17,64,$17
+	bgt $16,5b
+
+	ret
+	.end xor_alpha_prefetch_5
+");
+
+static struct xor_block_template xor_block_alpha = {
+	name: "alpha",
+	do_2: xor_alpha_2,
+	do_3: xor_alpha_3,
+	do_4: xor_alpha_4,
+	do_5: xor_alpha_5,
+};
+
+static struct xor_block_template xor_block_alpha_prefetch = {
+	name: "alpha prefetch",
+	do_2: xor_alpha_prefetch_2,
+	do_3: xor_alpha_prefetch_3,
+	do_4: xor_alpha_prefetch_4,
+	do_5: xor_alpha_prefetch_5,
+};
+
+/* For grins, also test the generic routines.  */
+#include <asm-generic/xor.h>
+
+#undef XOR_TRY_TEMPLATES
+#define XOR_TRY_TEMPLATES				\
+	do {						\
+		xor_speed(&xor_block_8regs);		\
+		xor_speed(&xor_block_32regs);		\
+		xor_speed(&xor_block_alpha);		\
+		xor_speed(&xor_block_alpha_prefetch);	\
+	} while (0)
+
+/* Force the use of alpha_prefetch if EV6, as it is significantly
+   faster in the cold cache case.  */
+#define XOR_SELECT_TEMPLATE(FASTEST) \
+	(implver() == IMPLVER_EV6 ? &xor_block_alpha_prefetch : FASTEST)