1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * include/asm-generic/xor.h
5  * Generic optimized RAID-5 checksumming functions.
20 		p1[3] ^= p2[3];  in xor_8regs_2()
23 		p1[6] ^= p2[6];  in xor_8regs_2()
27 	} while (--lines > 0);  in xor_8regs_2()
41 		p1[3] ^= p2[3] ^ p3[3];  in xor_8regs_3()
44 		p1[6] ^= p2[6] ^ p3[6];  in xor_8regs_3()
49 	} while (--lines > 0);  in xor_8regs_3()
64 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3];  in xor_8regs_4()
67 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6];  in xor_8regs_4()
73 	} while (--lines > 0);  in xor_8regs_4()
89 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3];  in xor_8regs_5()
92 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6];  in xor_8regs_5()
99 	} while (--lines > 0);  in xor_8regs_5()
113 		d3 = p1[3];  in xor_32regs_2()
116 		d6 = p1[6];  in xor_32regs_2()
121 		d3 ^= p2[3];  in xor_32regs_2()
124 		d6 ^= p2[6];  in xor_32regs_2()
129 		p1[3] = d3;  in xor_32regs_2()
132 		p1[6] = d6;  in xor_32regs_2()
136 	} while (--lines > 0);  in xor_32regs_2()
151 		d3 = p1[3];  in xor_32regs_3()
154 		d6 = p1[6];  in xor_32regs_3()
159 		d3 ^= p2[3];  in xor_32regs_3()
162 		d6 ^= p2[6];  in xor_32regs_3()
167 		d3 ^= p3[3];  in xor_32regs_3()
170 		d6 ^= p3[6];  in xor_32regs_3()
175 		p1[3] = d3;  in xor_32regs_3()
178 		p1[6] = d6;  in xor_32regs_3()
183 	} while (--lines > 0);  in xor_32regs_3()
199 		d3 = p1[3];  in xor_32regs_4()
202 		d6 = p1[6];  in xor_32regs_4()
207 		d3 ^= p2[3];  in xor_32regs_4()
210 		d6 ^= p2[6];  in xor_32regs_4()
215 		d3 ^= p3[3];  in xor_32regs_4()
218 		d6 ^= p3[6];  in xor_32regs_4()
223 		d3 ^= p4[3];  in xor_32regs_4()
226 		d6 ^= p4[6];  in xor_32regs_4()
231 		p1[3] = d3;  in xor_32regs_4()
234 		p1[6] = d6;  in xor_32regs_4()
240 	} while (--lines > 0);  in xor_32regs_4()
257 		d3 = p1[3];  in xor_32regs_5()
260 		d6 = p1[6];  in xor_32regs_5()
265 		d3 ^= p2[3];  in xor_32regs_5()
268 		d6 ^= p2[6];  in xor_32regs_5()
273 		d3 ^= p3[3];  in xor_32regs_5()
276 		d6 ^= p3[6];  in xor_32regs_5()
281 		d3 ^= p4[3];  in xor_32regs_5()
284 		d6 ^= p4[6];  in xor_32regs_5()
289 		d3 ^= p5[3];  in xor_32regs_5()
292 		d6 ^= p5[6];  in xor_32regs_5()
297 		p1[3] = d3;  in xor_32regs_5()
300 		p1[6] = d6;  in xor_32regs_5()
307 	} while (--lines > 0);  in xor_32regs_5()
314 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_8regs_p_2()
325 		p1[3] ^= p2[3];  in xor_8regs_p_2()
328 		p1[6] ^= p2[6];  in xor_8regs_p_2()
332 	} while (--lines > 0);  in xor_8regs_p_2()
342 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_8regs_p_3()
355 		p1[3] ^= p2[3] ^ p3[3];  in xor_8regs_p_3()
358 		p1[6] ^= p2[6] ^ p3[6];  in xor_8regs_p_3()
363 	} while (--lines > 0);  in xor_8regs_p_3()
374 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_8regs_p_4()
390 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3];  in xor_8regs_p_4()
393 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6];  in xor_8regs_p_4()
399 	} while (--lines > 0);  in xor_8regs_p_4()
411 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_8regs_p_5()
429 		p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3];  in xor_8regs_p_5()
432 		p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6];  in xor_8regs_p_5()
439 	} while (--lines > 0);  in xor_8regs_p_5()
448 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_32regs_p_2()
462 		d3 = p1[3];  in xor_32regs_p_2()
465 		d6 = p1[6];  in xor_32regs_p_2()
470 		d3 ^= p2[3];  in xor_32regs_p_2()
473 		d6 ^= p2[6];  in xor_32regs_p_2()
478 		p1[3] = d3;  in xor_32regs_p_2()
481 		p1[6] = d6;  in xor_32regs_p_2()
485 	} while (--lines > 0);  in xor_32regs_p_2()
495 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_32regs_p_3()
511 		d3 = p1[3];  in xor_32regs_p_3()
514 		d6 = p1[6];  in xor_32regs_p_3()
519 		d3 ^= p2[3];  in xor_32regs_p_3()
522 		d6 ^= p2[6];  in xor_32regs_p_3()
527 		d3 ^= p3[3];  in xor_32regs_p_3()
530 		d6 ^= p3[6];  in xor_32regs_p_3()
535 		p1[3] = d3;  in xor_32regs_p_3()
538 		p1[6] = d6;  in xor_32regs_p_3()
543 	} while (--lines > 0);  in xor_32regs_p_3()
554 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_32regs_p_4()
572 		d3 = p1[3];  in xor_32regs_p_4()
575 		d6 = p1[6];  in xor_32regs_p_4()
580 		d3 ^= p2[3];  in xor_32regs_p_4()
583 		d6 ^= p2[6];  in xor_32regs_p_4()
588 		d3 ^= p3[3];  in xor_32regs_p_4()
591 		d6 ^= p3[6];  in xor_32regs_p_4()
596 		d3 ^= p4[3];  in xor_32regs_p_4()
599 		d6 ^= p4[6];  in xor_32regs_p_4()
604 		p1[3] = d3;  in xor_32regs_p_4()
607 		p1[6] = d6;  in xor_32regs_p_4()
613 	} while (--lines > 0);  in xor_32regs_p_4()
625 	long lines = bytes / (sizeof (long)) / 8 - 1;  in xor_32regs_p_5()
645 		d3 = p1[3];  in xor_32regs_p_5()
648 		d6 = p1[6];  in xor_32regs_p_5()
653 		d3 ^= p2[3];  in xor_32regs_p_5()
656 		d6 ^= p2[6];  in xor_32regs_p_5()
661 		d3 ^= p3[3];  in xor_32regs_p_5()
664 		d6 ^= p3[6];  in xor_32regs_p_5()
669 		d3 ^= p4[3];  in xor_32regs_p_5()
672 		d6 ^= p4[6];  in xor_32regs_p_5()
677 		d3 ^= p5[3];  in xor_32regs_p_5()
680 		d6 ^= p5[6];  in xor_32regs_p_5()
685 		p1[3] = d3;  in xor_32regs_p_5()
688 		p1[6] = d6;  in xor_32regs_p_5()
695 	} while (--lines > 0);  in xor_32regs_p_5()