[linux-2.6-block.git] / arch / powerpc / lib / xor_vmx.c

/*
 * 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 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * Copyright (C) IBM Corporation, 2012
 *
 * Author: Anton Blanchard <anton@au.ibm.com>
 */

/*
 * Sparse (as at v0.5.0) gets very, very confused by this file.
 * Make it a bit simpler for it.
 */
#if !defined(__CHECKER__)
#include <altivec.h>
#else
#define vec_xor(a, b) a ^ b
#define vector __attribute__((vector_size(16)))
#endif

#include "xor_vmx.h"

typedef vector signed char unative_t;

#define DEFINE(V)				\
	unative_t *V = (unative_t *)V##_in;	\
	unative_t V##_0, V##_1, V##_2, V##_3

#define LOAD(V)			\
	do {			\
		V##_0 = V[0];	\
		V##_1 = V[1];	\
		V##_2 = V[2];	\
		V##_3 = V[3];	\
	} while (0)

#define STORE(V)		\
	do {			\
		V[0] = V##_0;	\
		V[1] = V##_1;	\
		V[2] = V##_2;	\
		V[3] = V##_3;	\
	} while (0)

#define XOR(V1, V2)					\
	do {						\
		V1##_0 = vec_xor(V1##_0, V2##_0);	\
		V1##_1 = vec_xor(V1##_1, V2##_1);	\
		V1##_2 = vec_xor(V1##_2, V2##_2);	\
		V1##_3 = vec_xor(V1##_3, V2##_3);	\
	} while (0)

void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
		     unsigned long *v2_in)
{
	DEFINE(v1);
	DEFINE(v2);
	unsigned long lines = bytes / (sizeof(unative_t)) / 4;

	do {
		LOAD(v1);
		LOAD(v2);
		XOR(v1, v2);
		STORE(v1);

		v1 += 4;
		v2 += 4;
	} while (--lines > 0);
}

void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
		     unsigned long *v2_in, unsigned long *v3_in)
{
	DEFINE(v1);
	DEFINE(v2);
	DEFINE(v3);
	unsigned long lines = bytes / (sizeof(unative_t)) / 4;

	do {
		LOAD(v1);
		LOAD(v2);
		LOAD(v3);
		XOR(v1, v2);
		XOR(v1, v3);
		STORE(v1);

		v1 += 4;
		v2 += 4;
		v3 += 4;
	} while (--lines > 0);
}

void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
		     unsigned long *v2_in, unsigned long *v3_in,
		     unsigned long *v4_in)
{
	DEFINE(v1);
	DEFINE(v2);
	DEFINE(v3);
	DEFINE(v4);
	unsigned long lines = bytes / (sizeof(unative_t)) / 4;

	do {
		LOAD(v1);
		LOAD(v2);
		LOAD(v3);
		LOAD(v4);
		XOR(v1, v2);
		XOR(v3, v4);
		XOR(v1, v3);
		STORE(v1);

		v1 += 4;
		v2 += 4;
		v3 += 4;
		v4 += 4;
	} while (--lines > 0);
}

void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
		     unsigned long *v2_in, unsigned long *v3_in,
		     unsigned long *v4_in, unsigned long *v5_in)
{
	DEFINE(v1);
	DEFINE(v2);
	DEFINE(v3);
	DEFINE(v4);
	DEFINE(v5);
	unsigned long lines = bytes / (sizeof(unative_t)) / 4;

	do {
		LOAD(v1);
		LOAD(v2);
		LOAD(v3);
		LOAD(v4);
		LOAD(v5);
		XOR(v1, v2);
		XOR(v3, v4);
		XOR(v1, v5);
		XOR(v1, v3);
		STORE(v1);

		v1 += 4;
		v2 += 4;
		v3 += 4;
		v4 += 4;
		v5 += 4;
	} while (--lines > 0);
}
Commit	Line	Data
ef1313de AB	1	/*
	2	* This program is free software; you can redistribute it and/or modify
	3	* it under the terms of the GNU General Public License as published by
	4	* the Free Software Foundation; either version 2 of the License, or
	5	* (at your option) any later version.
	6	*
	7	* This program is distributed in the hope that it will be useful,
	8	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	9	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	10	* GNU General Public License for more details.
	11	*
	12	* You should have received a copy of the GNU General Public License
	13	* along with this program; if not, write to the Free Software
	14	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	15	*
	16	* Copyright (C) IBM Corporation, 2012
	17	*
	18	* Author: Anton Blanchard <anton@au.ibm.com>
	19	*/
8fe08885 DA	20
	21	/*
	22	* Sparse (as at v0.5.0) gets very, very confused by this file.
	23	* Make it a bit simpler for it.
	24	*/
	25	#if !defined(__CHECKER__)
ef1313de	26	#include <altivec.h>
8fe08885 DA	27	#else
	28	#define vec_xor(a, b) a ^ b
	29	#define vector __attribute__((vector_size(16)))
	30	#endif
ef1313de	31
f718d426	32	#include "xor_vmx.h"
ef1313de AB	33
	34	typedef vector signed char unative_t;
	35
	36	#define DEFINE(V) \
	37	unative_t V = (unative_t )V##_in; \
	38	unative_t V##_0, V##_1, V##_2, V##_3
	39
	40	#define LOAD(V) \
	41	do { \
	42	V##_0 = V[0]; \
	43	V##_1 = V[1]; \
	44	V##_2 = V[2]; \
	45	V##_3 = V[3]; \
	46	} while (0)
	47
	48	#define STORE(V) \
	49	do { \
	50	V[0] = V##_0; \
	51	V[1] = V##_1; \
	52	V[2] = V##_2; \
	53	V[3] = V##_3; \
	54	} while (0)
	55
	56	#define XOR(V1, V2) \
	57	do { \
	58	V1##_0 = vec_xor(V1##_0, V2##_0); \
	59	V1##_1 = vec_xor(V1##_1, V2##_1); \
	60	V1##_2 = vec_xor(V1##_2, V2##_2); \
	61	V1##_3 = vec_xor(V1##_3, V2##_3); \
	62	} while (0)
	63
f718d426 MB	64	void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
f718d426 MB	65	unsigned long *v2_in)
ef1313de AB	66	{
	67	DEFINE(v1);
	68	DEFINE(v2);
	69	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
	70
ef1313de AB	71	do {
	72	LOAD(v1);
	73	LOAD(v2);
	74	XOR(v1, v2);
	75	STORE(v1);
	76
	77	v1 += 4;
	78	v2 += 4;
	79	} while (--lines > 0);
ef1313de	80	}
ef1313de	81
f718d426 MB	82	void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
f718d426 MB	83	unsigned long v2_in, unsigned long v3_in)
ef1313de AB	84	{
	85	DEFINE(v1);
	86	DEFINE(v2);
	87	DEFINE(v3);
	88	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
	89
ef1313de AB	90	do {
	91	LOAD(v1);
	92	LOAD(v2);
	93	LOAD(v3);
	94	XOR(v1, v2);
	95	XOR(v1, v3);
	96	STORE(v1);
	97
	98	v1 += 4;
	99	v2 += 4;
	100	v3 += 4;
	101	} while (--lines > 0);
ef1313de	102	}
ef1313de	103
f718d426 MB	104	void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
	105	unsigned long v2_in, unsigned long v3_in,
	106	unsigned long *v4_in)
ef1313de AB	107	{
	108	DEFINE(v1);
	109	DEFINE(v2);
	110	DEFINE(v3);
	111	DEFINE(v4);
	112	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
	113
ef1313de AB	114	do {
	115	LOAD(v1);
	116	LOAD(v2);
	117	LOAD(v3);
	118	LOAD(v4);
	119	XOR(v1, v2);
	120	XOR(v3, v4);
	121	XOR(v1, v3);
	122	STORE(v1);
	123
	124	v1 += 4;
	125	v2 += 4;
	126	v3 += 4;
	127	v4 += 4;
	128	} while (--lines > 0);
ef1313de	129	}
ef1313de	130
f718d426 MB	131	void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
	132	unsigned long v2_in, unsigned long v3_in,
	133	unsigned long v4_in, unsigned long v5_in)
ef1313de AB	134	{
	135	DEFINE(v1);
	136	DEFINE(v2);
	137	DEFINE(v3);
	138	DEFINE(v4);
	139	DEFINE(v5);
	140	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
	141
ef1313de AB	142	do {
	143	LOAD(v1);
	144	LOAD(v2);
	145	LOAD(v3);
	146	LOAD(v4);
	147	LOAD(v5);
	148	XOR(v1, v2);
	149	XOR(v3, v4);
	150	XOR(v1, v5);
	151	XOR(v1, v3);
	152	STORE(v1);
	153
	154	v1 += 4;
	155	v2 += 4;
	156	v3 += 4;
	157	v4 += 4;
	158	v5 += 4;
	159	} while (--lines > 0);
ef1313de	160	}