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	 720fb1976d
			
		
	
	
		720fb1976d
		
	
	
	
	
		
			
			The asm-generic/xor.h header file is nasty and defines static functions that are not inline. The header file is include by the ARM version of asm/xor.h, which uses some but not all of the symbols defined there. Marking the extraneous functions as __maybe_unused lets gcc drop them without complaining. Without this patch, building iop13xx_defconfig results in: include/asm-generic/xor.h:696:34: warning: 'xor_block_8regs_p' defined but not used [-Wunused-variable] include/asm-generic/xor.h:704:34: warning: 'xor_block_32regs_p' defined but not used [-Wunused-variable] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Dan Williams <dan.j.williams@gmail.com> Cc: Neil Brown <neilb@suse.de>
		
			
				
	
	
		
			718 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			718 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * include/asm-generic/xor.h
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|  *
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|  * Generic optimized RAID-5 checksumming functions.
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|  *
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|  * This program is free software; you can redistribute it and/or modify
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|  * it under the terms of the GNU General Public License as published by
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|  * the Free Software Foundation; either version 2, or (at your option)
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|  * any later version.
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|  *
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|  * You should have received a copy of the GNU General Public License
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|  * (for example /usr/src/linux/COPYING); if not, write to the Free
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|  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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|  */
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| 
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| #include <linux/prefetch.h>
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| 
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| static void
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| xor_8regs_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		p1[0] ^= p2[0];
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| 		p1[1] ^= p2[1];
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| 		p1[2] ^= p2[2];
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| 		p1[3] ^= p2[3];
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| 		p1[4] ^= p2[4];
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| 		p1[5] ^= p2[5];
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| 		p1[6] ^= p2[6];
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| 		p1[7] ^= p2[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_8regs_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		p1[0] ^= p2[0] ^ p3[0];
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| 		p1[1] ^= p2[1] ^ p3[1];
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| 		p1[2] ^= p2[2] ^ p3[2];
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| 		p1[3] ^= p2[3] ^ p3[3];
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| 		p1[4] ^= p2[4] ^ p3[4];
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| 		p1[5] ^= p2[5] ^ p3[5];
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| 		p1[6] ^= p2[6] ^ p3[6];
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| 		p1[7] ^= p2[7] ^ p3[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_8regs_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3, unsigned long *p4)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		p1[0] ^= p2[0] ^ p3[0] ^ p4[0];
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| 		p1[1] ^= p2[1] ^ p3[1] ^ p4[1];
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| 		p1[2] ^= p2[2] ^ p3[2] ^ p4[2];
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| 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3];
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| 		p1[4] ^= p2[4] ^ p3[4] ^ p4[4];
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| 		p1[5] ^= p2[5] ^ p3[5] ^ p4[5];
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| 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6];
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| 		p1[7] ^= p2[7] ^ p3[7] ^ p4[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 		p4 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_8regs_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3, unsigned long *p4, unsigned long *p5)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		p1[0] ^= p2[0] ^ p3[0] ^ p4[0] ^ p5[0];
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| 		p1[1] ^= p2[1] ^ p3[1] ^ p4[1] ^ p5[1];
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| 		p1[2] ^= p2[2] ^ p3[2] ^ p4[2] ^ p5[2];
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| 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3];
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| 		p1[4] ^= p2[4] ^ p3[4] ^ p4[4] ^ p5[4];
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| 		p1[5] ^= p2[5] ^ p3[5] ^ p4[5] ^ p5[5];
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| 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6];
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| 		p1[7] ^= p2[7] ^ p3[7] ^ p4[7] ^ p5[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 		p4 += 8;
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| 		p5 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_32regs_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
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| 		d0 = p1[0];	/* Pull the stuff into registers	*/
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| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
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| 		d2 = p1[2];
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| 		d3 = p1[3];
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| 		d4 = p1[4];
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| 		d5 = p1[5];
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| 		d6 = p1[6];
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| 		d7 = p1[7];
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| 		d0 ^= p2[0];
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| 		d1 ^= p2[1];
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| 		d2 ^= p2[2];
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| 		d3 ^= p2[3];
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| 		d4 ^= p2[4];
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| 		d5 ^= p2[5];
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| 		d6 ^= p2[6];
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| 		d7 ^= p2[7];
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| 		p1[0] = d0;	/* Store the result (in bursts)		*/
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| 		p1[1] = d1;
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| 		p1[2] = d2;
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| 		p1[3] = d3;
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| 		p1[4] = d4;
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| 		p1[5] = d5;
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| 		p1[6] = d6;
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| 		p1[7] = d7;
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| 		p1 += 8;
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| 		p2 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_32regs_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
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| 		d0 = p1[0];	/* Pull the stuff into registers	*/
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| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
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| 		d2 = p1[2];
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| 		d3 = p1[3];
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| 		d4 = p1[4];
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| 		d5 = p1[5];
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| 		d6 = p1[6];
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| 		d7 = p1[7];
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| 		d0 ^= p2[0];
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| 		d1 ^= p2[1];
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| 		d2 ^= p2[2];
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| 		d3 ^= p2[3];
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| 		d4 ^= p2[4];
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| 		d5 ^= p2[5];
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| 		d6 ^= p2[6];
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| 		d7 ^= p2[7];
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| 		d0 ^= p3[0];
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| 		d1 ^= p3[1];
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| 		d2 ^= p3[2];
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| 		d3 ^= p3[3];
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| 		d4 ^= p3[4];
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| 		d5 ^= p3[5];
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| 		d6 ^= p3[6];
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| 		d7 ^= p3[7];
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| 		p1[0] = d0;	/* Store the result (in bursts)		*/
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| 		p1[1] = d1;
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| 		p1[2] = d2;
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| 		p1[3] = d3;
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| 		p1[4] = d4;
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| 		p1[5] = d5;
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| 		p1[6] = d6;
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| 		p1[7] = d7;
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_32regs_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3, unsigned long *p4)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
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| 		d0 = p1[0];	/* Pull the stuff into registers	*/
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| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
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| 		d2 = p1[2];
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| 		d3 = p1[3];
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| 		d4 = p1[4];
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| 		d5 = p1[5];
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| 		d6 = p1[6];
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| 		d7 = p1[7];
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| 		d0 ^= p2[0];
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| 		d1 ^= p2[1];
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| 		d2 ^= p2[2];
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| 		d3 ^= p2[3];
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| 		d4 ^= p2[4];
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| 		d5 ^= p2[5];
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| 		d6 ^= p2[6];
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| 		d7 ^= p2[7];
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| 		d0 ^= p3[0];
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| 		d1 ^= p3[1];
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| 		d2 ^= p3[2];
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| 		d3 ^= p3[3];
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| 		d4 ^= p3[4];
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| 		d5 ^= p3[5];
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| 		d6 ^= p3[6];
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| 		d7 ^= p3[7];
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| 		d0 ^= p4[0];
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| 		d1 ^= p4[1];
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| 		d2 ^= p4[2];
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| 		d3 ^= p4[3];
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| 		d4 ^= p4[4];
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| 		d5 ^= p4[5];
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| 		d6 ^= p4[6];
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| 		d7 ^= p4[7];
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| 		p1[0] = d0;	/* Store the result (in bursts)		*/
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| 		p1[1] = d1;
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| 		p1[2] = d2;
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| 		p1[3] = d3;
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| 		p1[4] = d4;
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| 		p1[5] = d5;
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| 		p1[6] = d6;
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| 		p1[7] = d7;
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 		p4 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_32regs_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3, unsigned long *p4, unsigned long *p5)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8;
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| 
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| 	do {
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| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
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| 		d0 = p1[0];	/* Pull the stuff into registers	*/
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| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
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| 		d2 = p1[2];
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| 		d3 = p1[3];
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| 		d4 = p1[4];
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| 		d5 = p1[5];
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| 		d6 = p1[6];
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| 		d7 = p1[7];
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| 		d0 ^= p2[0];
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| 		d1 ^= p2[1];
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| 		d2 ^= p2[2];
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| 		d3 ^= p2[3];
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| 		d4 ^= p2[4];
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| 		d5 ^= p2[5];
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| 		d6 ^= p2[6];
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| 		d7 ^= p2[7];
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| 		d0 ^= p3[0];
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| 		d1 ^= p3[1];
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| 		d2 ^= p3[2];
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| 		d3 ^= p3[3];
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| 		d4 ^= p3[4];
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| 		d5 ^= p3[5];
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| 		d6 ^= p3[6];
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| 		d7 ^= p3[7];
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| 		d0 ^= p4[0];
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| 		d1 ^= p4[1];
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| 		d2 ^= p4[2];
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| 		d3 ^= p4[3];
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| 		d4 ^= p4[4];
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| 		d5 ^= p4[5];
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| 		d6 ^= p4[6];
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| 		d7 ^= p4[7];
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| 		d0 ^= p5[0];
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| 		d1 ^= p5[1];
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| 		d2 ^= p5[2];
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| 		d3 ^= p5[3];
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| 		d4 ^= p5[4];
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| 		d5 ^= p5[5];
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| 		d6 ^= p5[6];
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| 		d7 ^= p5[7];
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| 		p1[0] = d0;	/* Store the result (in bursts)		*/
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| 		p1[1] = d1;
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| 		p1[2] = d2;
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| 		p1[3] = d3;
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| 		p1[4] = d4;
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| 		p1[5] = d5;
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| 		p1[6] = d6;
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| 		p1[7] = d7;
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 		p4 += 8;
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| 		p5 += 8;
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| 	} while (--lines > 0);
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| }
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| 
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| static void
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| xor_8regs_p_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8 - 1;
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| 	prefetchw(p1);
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| 	prefetch(p2);
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| 
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| 	do {
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| 		prefetchw(p1+8);
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| 		prefetch(p2+8);
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|  once_more:
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| 		p1[0] ^= p2[0];
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| 		p1[1] ^= p2[1];
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| 		p1[2] ^= p2[2];
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| 		p1[3] ^= p2[3];
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| 		p1[4] ^= p2[4];
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| 		p1[5] ^= p2[5];
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| 		p1[6] ^= p2[6];
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| 		p1[7] ^= p2[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 	} while (--lines > 0);
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| 	if (lines == 0)
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| 		goto once_more;
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| }
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| 
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| static void
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| xor_8regs_p_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8 - 1;
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| 	prefetchw(p1);
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| 	prefetch(p2);
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| 	prefetch(p3);
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| 
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| 	do {
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| 		prefetchw(p1+8);
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| 		prefetch(p2+8);
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| 		prefetch(p3+8);
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|  once_more:
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| 		p1[0] ^= p2[0] ^ p3[0];
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| 		p1[1] ^= p2[1] ^ p3[1];
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| 		p1[2] ^= p2[2] ^ p3[2];
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| 		p1[3] ^= p2[3] ^ p3[3];
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| 		p1[4] ^= p2[4] ^ p3[4];
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| 		p1[5] ^= p2[5] ^ p3[5];
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| 		p1[6] ^= p2[6] ^ p3[6];
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| 		p1[7] ^= p2[7] ^ p3[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 	} while (--lines > 0);
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| 	if (lines == 0)
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| 		goto once_more;
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| }
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| 
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| static void
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| xor_8regs_p_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3, unsigned long *p4)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8 - 1;
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| 
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| 	prefetchw(p1);
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| 	prefetch(p2);
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| 	prefetch(p3);
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| 	prefetch(p4);
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| 
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| 	do {
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| 		prefetchw(p1+8);
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| 		prefetch(p2+8);
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| 		prefetch(p3+8);
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| 		prefetch(p4+8);
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|  once_more:
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| 		p1[0] ^= p2[0] ^ p3[0] ^ p4[0];
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| 		p1[1] ^= p2[1] ^ p3[1] ^ p4[1];
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| 		p1[2] ^= p2[2] ^ p3[2] ^ p4[2];
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| 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3];
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| 		p1[4] ^= p2[4] ^ p3[4] ^ p4[4];
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| 		p1[5] ^= p2[5] ^ p3[5] ^ p4[5];
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| 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6];
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| 		p1[7] ^= p2[7] ^ p3[7] ^ p4[7];
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| 		p1 += 8;
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| 		p2 += 8;
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| 		p3 += 8;
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| 		p4 += 8;
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| 	} while (--lines > 0);
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| 	if (lines == 0)
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| 		goto once_more;
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| }
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| 
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| static void
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| xor_8regs_p_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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| 	    unsigned long *p3, unsigned long *p4, unsigned long *p5)
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| {
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| 	long lines = bytes / (sizeof (long)) / 8 - 1;
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| 
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| 	prefetchw(p1);
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| 	prefetch(p2);
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| 	prefetch(p3);
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| 	prefetch(p4);
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| 	prefetch(p5);
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| 
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| 	do {
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| 		prefetchw(p1+8);
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| 		prefetch(p2+8);
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| 		prefetch(p3+8);
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| 		prefetch(p4+8);
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| 		prefetch(p5+8);
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|  once_more:
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| 		p1[0] ^= p2[0] ^ p3[0] ^ p4[0] ^ p5[0];
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| 		p1[1] ^= p2[1] ^ p3[1] ^ p4[1] ^ p5[1];
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| 		p1[2] ^= p2[2] ^ p3[2] ^ p4[2] ^ p5[2];
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| 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3];
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| 		p1[4] ^= p2[4] ^ p3[4] ^ p4[4] ^ p5[4];
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| 		p1[5] ^= p2[5] ^ p3[5] ^ p4[5] ^ p5[5];
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| 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6];
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| 		p1[7] ^= p2[7] ^ p3[7] ^ p4[7] ^ p5[7];
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| 		p1 += 8;
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| 		p2 += 8;
 | |
| 		p3 += 8;
 | |
| 		p4 += 8;
 | |
| 		p5 += 8;
 | |
| 	} while (--lines > 0);
 | |
| 	if (lines == 0)
 | |
| 		goto once_more;
 | |
| }
 | |
| 
 | |
| static void
 | |
| xor_32regs_p_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
 | |
| {
 | |
| 	long lines = bytes / (sizeof (long)) / 8 - 1;
 | |
| 
 | |
| 	prefetchw(p1);
 | |
| 	prefetch(p2);
 | |
| 
 | |
| 	do {
 | |
| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
 | |
| 
 | |
| 		prefetchw(p1+8);
 | |
| 		prefetch(p2+8);
 | |
|  once_more:
 | |
| 		d0 = p1[0];	/* Pull the stuff into registers	*/
 | |
| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
 | |
| 		d2 = p1[2];
 | |
| 		d3 = p1[3];
 | |
| 		d4 = p1[4];
 | |
| 		d5 = p1[5];
 | |
| 		d6 = p1[6];
 | |
| 		d7 = p1[7];
 | |
| 		d0 ^= p2[0];
 | |
| 		d1 ^= p2[1];
 | |
| 		d2 ^= p2[2];
 | |
| 		d3 ^= p2[3];
 | |
| 		d4 ^= p2[4];
 | |
| 		d5 ^= p2[5];
 | |
| 		d6 ^= p2[6];
 | |
| 		d7 ^= p2[7];
 | |
| 		p1[0] = d0;	/* Store the result (in bursts)		*/
 | |
| 		p1[1] = d1;
 | |
| 		p1[2] = d2;
 | |
| 		p1[3] = d3;
 | |
| 		p1[4] = d4;
 | |
| 		p1[5] = d5;
 | |
| 		p1[6] = d6;
 | |
| 		p1[7] = d7;
 | |
| 		p1 += 8;
 | |
| 		p2 += 8;
 | |
| 	} while (--lines > 0);
 | |
| 	if (lines == 0)
 | |
| 		goto once_more;
 | |
| }
 | |
| 
 | |
| static void
 | |
| xor_32regs_p_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
 | |
| 	    unsigned long *p3)
 | |
| {
 | |
| 	long lines = bytes / (sizeof (long)) / 8 - 1;
 | |
| 
 | |
| 	prefetchw(p1);
 | |
| 	prefetch(p2);
 | |
| 	prefetch(p3);
 | |
| 
 | |
| 	do {
 | |
| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
 | |
| 
 | |
| 		prefetchw(p1+8);
 | |
| 		prefetch(p2+8);
 | |
| 		prefetch(p3+8);
 | |
|  once_more:
 | |
| 		d0 = p1[0];	/* Pull the stuff into registers	*/
 | |
| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
 | |
| 		d2 = p1[2];
 | |
| 		d3 = p1[3];
 | |
| 		d4 = p1[4];
 | |
| 		d5 = p1[5];
 | |
| 		d6 = p1[6];
 | |
| 		d7 = p1[7];
 | |
| 		d0 ^= p2[0];
 | |
| 		d1 ^= p2[1];
 | |
| 		d2 ^= p2[2];
 | |
| 		d3 ^= p2[3];
 | |
| 		d4 ^= p2[4];
 | |
| 		d5 ^= p2[5];
 | |
| 		d6 ^= p2[6];
 | |
| 		d7 ^= p2[7];
 | |
| 		d0 ^= p3[0];
 | |
| 		d1 ^= p3[1];
 | |
| 		d2 ^= p3[2];
 | |
| 		d3 ^= p3[3];
 | |
| 		d4 ^= p3[4];
 | |
| 		d5 ^= p3[5];
 | |
| 		d6 ^= p3[6];
 | |
| 		d7 ^= p3[7];
 | |
| 		p1[0] = d0;	/* Store the result (in bursts)		*/
 | |
| 		p1[1] = d1;
 | |
| 		p1[2] = d2;
 | |
| 		p1[3] = d3;
 | |
| 		p1[4] = d4;
 | |
| 		p1[5] = d5;
 | |
| 		p1[6] = d6;
 | |
| 		p1[7] = d7;
 | |
| 		p1 += 8;
 | |
| 		p2 += 8;
 | |
| 		p3 += 8;
 | |
| 	} while (--lines > 0);
 | |
| 	if (lines == 0)
 | |
| 		goto once_more;
 | |
| }
 | |
| 
 | |
| static void
 | |
| xor_32regs_p_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
 | |
| 	    unsigned long *p3, unsigned long *p4)
 | |
| {
 | |
| 	long lines = bytes / (sizeof (long)) / 8 - 1;
 | |
| 
 | |
| 	prefetchw(p1);
 | |
| 	prefetch(p2);
 | |
| 	prefetch(p3);
 | |
| 	prefetch(p4);
 | |
| 
 | |
| 	do {
 | |
| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
 | |
| 
 | |
| 		prefetchw(p1+8);
 | |
| 		prefetch(p2+8);
 | |
| 		prefetch(p3+8);
 | |
| 		prefetch(p4+8);
 | |
|  once_more:
 | |
| 		d0 = p1[0];	/* Pull the stuff into registers	*/
 | |
| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
 | |
| 		d2 = p1[2];
 | |
| 		d3 = p1[3];
 | |
| 		d4 = p1[4];
 | |
| 		d5 = p1[5];
 | |
| 		d6 = p1[6];
 | |
| 		d7 = p1[7];
 | |
| 		d0 ^= p2[0];
 | |
| 		d1 ^= p2[1];
 | |
| 		d2 ^= p2[2];
 | |
| 		d3 ^= p2[3];
 | |
| 		d4 ^= p2[4];
 | |
| 		d5 ^= p2[5];
 | |
| 		d6 ^= p2[6];
 | |
| 		d7 ^= p2[7];
 | |
| 		d0 ^= p3[0];
 | |
| 		d1 ^= p3[1];
 | |
| 		d2 ^= p3[2];
 | |
| 		d3 ^= p3[3];
 | |
| 		d4 ^= p3[4];
 | |
| 		d5 ^= p3[5];
 | |
| 		d6 ^= p3[6];
 | |
| 		d7 ^= p3[7];
 | |
| 		d0 ^= p4[0];
 | |
| 		d1 ^= p4[1];
 | |
| 		d2 ^= p4[2];
 | |
| 		d3 ^= p4[3];
 | |
| 		d4 ^= p4[4];
 | |
| 		d5 ^= p4[5];
 | |
| 		d6 ^= p4[6];
 | |
| 		d7 ^= p4[7];
 | |
| 		p1[0] = d0;	/* Store the result (in bursts)		*/
 | |
| 		p1[1] = d1;
 | |
| 		p1[2] = d2;
 | |
| 		p1[3] = d3;
 | |
| 		p1[4] = d4;
 | |
| 		p1[5] = d5;
 | |
| 		p1[6] = d6;
 | |
| 		p1[7] = d7;
 | |
| 		p1 += 8;
 | |
| 		p2 += 8;
 | |
| 		p3 += 8;
 | |
| 		p4 += 8;
 | |
| 	} while (--lines > 0);
 | |
| 	if (lines == 0)
 | |
| 		goto once_more;
 | |
| }
 | |
| 
 | |
| static void
 | |
| xor_32regs_p_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
 | |
| 	    unsigned long *p3, unsigned long *p4, unsigned long *p5)
 | |
| {
 | |
| 	long lines = bytes / (sizeof (long)) / 8 - 1;
 | |
| 
 | |
| 	prefetchw(p1);
 | |
| 	prefetch(p2);
 | |
| 	prefetch(p3);
 | |
| 	prefetch(p4);
 | |
| 	prefetch(p5);
 | |
| 
 | |
| 	do {
 | |
| 		register long d0, d1, d2, d3, d4, d5, d6, d7;
 | |
| 
 | |
| 		prefetchw(p1+8);
 | |
| 		prefetch(p2+8);
 | |
| 		prefetch(p3+8);
 | |
| 		prefetch(p4+8);
 | |
| 		prefetch(p5+8);
 | |
|  once_more:
 | |
| 		d0 = p1[0];	/* Pull the stuff into registers	*/
 | |
| 		d1 = p1[1];	/*  ... in bursts, if possible.		*/
 | |
| 		d2 = p1[2];
 | |
| 		d3 = p1[3];
 | |
| 		d4 = p1[4];
 | |
| 		d5 = p1[5];
 | |
| 		d6 = p1[6];
 | |
| 		d7 = p1[7];
 | |
| 		d0 ^= p2[0];
 | |
| 		d1 ^= p2[1];
 | |
| 		d2 ^= p2[2];
 | |
| 		d3 ^= p2[3];
 | |
| 		d4 ^= p2[4];
 | |
| 		d5 ^= p2[5];
 | |
| 		d6 ^= p2[6];
 | |
| 		d7 ^= p2[7];
 | |
| 		d0 ^= p3[0];
 | |
| 		d1 ^= p3[1];
 | |
| 		d2 ^= p3[2];
 | |
| 		d3 ^= p3[3];
 | |
| 		d4 ^= p3[4];
 | |
| 		d5 ^= p3[5];
 | |
| 		d6 ^= p3[6];
 | |
| 		d7 ^= p3[7];
 | |
| 		d0 ^= p4[0];
 | |
| 		d1 ^= p4[1];
 | |
| 		d2 ^= p4[2];
 | |
| 		d3 ^= p4[3];
 | |
| 		d4 ^= p4[4];
 | |
| 		d5 ^= p4[5];
 | |
| 		d6 ^= p4[6];
 | |
| 		d7 ^= p4[7];
 | |
| 		d0 ^= p5[0];
 | |
| 		d1 ^= p5[1];
 | |
| 		d2 ^= p5[2];
 | |
| 		d3 ^= p5[3];
 | |
| 		d4 ^= p5[4];
 | |
| 		d5 ^= p5[5];
 | |
| 		d6 ^= p5[6];
 | |
| 		d7 ^= p5[7];
 | |
| 		p1[0] = d0;	/* Store the result (in bursts)		*/
 | |
| 		p1[1] = d1;
 | |
| 		p1[2] = d2;
 | |
| 		p1[3] = d3;
 | |
| 		p1[4] = d4;
 | |
| 		p1[5] = d5;
 | |
| 		p1[6] = d6;
 | |
| 		p1[7] = d7;
 | |
| 		p1 += 8;
 | |
| 		p2 += 8;
 | |
| 		p3 += 8;
 | |
| 		p4 += 8;
 | |
| 		p5 += 8;
 | |
| 	} while (--lines > 0);
 | |
| 	if (lines == 0)
 | |
| 		goto once_more;
 | |
| }
 | |
| 
 | |
| static struct xor_block_template xor_block_8regs = {
 | |
| 	.name = "8regs",
 | |
| 	.do_2 = xor_8regs_2,
 | |
| 	.do_3 = xor_8regs_3,
 | |
| 	.do_4 = xor_8regs_4,
 | |
| 	.do_5 = xor_8regs_5,
 | |
| };
 | |
| 
 | |
| static struct xor_block_template xor_block_32regs = {
 | |
| 	.name = "32regs",
 | |
| 	.do_2 = xor_32regs_2,
 | |
| 	.do_3 = xor_32regs_3,
 | |
| 	.do_4 = xor_32regs_4,
 | |
| 	.do_5 = xor_32regs_5,
 | |
| };
 | |
| 
 | |
| static struct xor_block_template xor_block_8regs_p __maybe_unused = {
 | |
| 	.name = "8regs_prefetch",
 | |
| 	.do_2 = xor_8regs_p_2,
 | |
| 	.do_3 = xor_8regs_p_3,
 | |
| 	.do_4 = xor_8regs_p_4,
 | |
| 	.do_5 = xor_8regs_p_5,
 | |
| };
 | |
| 
 | |
| static struct xor_block_template xor_block_32regs_p __maybe_unused = {
 | |
| 	.name = "32regs_prefetch",
 | |
| 	.do_2 = xor_32regs_p_2,
 | |
| 	.do_3 = xor_32regs_p_3,
 | |
| 	.do_4 = xor_32regs_p_4,
 | |
| 	.do_5 = xor_32regs_p_5,
 | |
| };
 | |
| 
 | |
| #define XOR_TRY_TEMPLATES			\
 | |
| 	do {					\
 | |
| 		xor_speed(&xor_block_8regs);	\
 | |
| 		xor_speed(&xor_block_8regs_p);	\
 | |
| 		xor_speed(&xor_block_32regs);	\
 | |
| 		xor_speed(&xor_block_32regs_p);	\
 | |
| 	} while (0)
 |