/* * This file is subject to the terms and conditions of the GNU General Public * License.  See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle (ralf@gnu.org) */#include <linux/sched.h>#include <linux/mm.h>#include <asm/cacheops.h>void r5432_clear_page_d32(void * page){	__asm__ __volatile__(		".set\tnoreorder\n\t"		".set\tnoat\n\t"		".set\tmips3\n\t"		"addiu\t$1,%0,%2\n"		"1:\tcache\t%3,(%0)\n\t"		"sd\t$0,(%0)\n\t"		"sd\t$0,8(%0)\n\t"		"sd\t$0,16(%0)\n\t"		"sd\t$0,24(%0)\n\t"		"addiu\t%0,64\n\t"		"cache\t%3,-32(%0)\n\t"		"sd\t$0,-32(%0)\n\t"		"sd\t$0,-24(%0)\n\t"		"sd\t$0,-16(%0)\n\t"		"bne\t$1,%0,1b\n\t"		"sd\t$0,-8(%0)\n\t"		".set\tmips0\n\t"		".set\tat\n\t"		".set\treorder"		: "=r" (page)		: "0" (page), "I" (PAGE_SIZE), "i" (Create_Dirty_Excl_D)		: "memory");}/* * This is still inefficient.  We only can do better if we know the * virtual address where the copy will be accessed. */void r5432_copy_page_d32(void * to, void * from){	unsigned long dummy1, dummy2;	unsigned long reg1, reg2, reg3, reg4;	__asm__ __volatile__(		".set\tnoreorder\n\t"		".set\tnoat\n\t"		".set\tmips3\n\t"		"addiu\t$1,%0,%8\n"		"1:\tcache\t%9,(%0)\n\t"		"lw\t%2,(%1)\n\t"		"lw\t%3,4(%1)\n\t"		"lw\t%4,8(%1)\n\t"		"lw\t%5,12(%1)\n\t"		"sw\t%2,(%0)\n\t"		"sw\t%3,4(%0)\n\t"		"sw\t%4,8(%0)\n\t"		"sw\t%5,12(%0)\n\t"		"lw\t%2,16(%1)\n\t"		"lw\t%3,20(%1)\n\t"		"lw\t%4,24(%1)\n\t"		"lw\t%5,28(%1)\n\t"		"sw\t%2,16(%0)\n\t"		"sw\t%3,20(%0)\n\t"		"sw\t%4,24(%0)\n\t"		"sw\t%5,28(%0)\n\t"		"cache\t%9,32(%0)\n\t"		"addiu\t%0,64\n\t"		"addiu\t%1,64\n\t"		"lw\t%2,-32(%1)\n\t"		"lw\t%3,-28(%1)\n\t"		"lw\t%4,-24(%1)\n\t"		"lw\t%5,-20(%1)\n\t"		"sw\t%2,-32(%0)\n\t"		"sw\t%3,-28(%0)\n\t"		"sw\t%4,-24(%0)\n\t"		"sw\t%5,-20(%0)\n\t"		"lw\t%2,-16(%1)\n\t"		"lw\t%3,-12(%1)\n\t"		"lw\t%4,-8(%1)\n\t"		"lw\t%5,-4(%1)\n\t"		"sw\t%2,-16(%0)\n\t"		"sw\t%3,-12(%0)\n\t"		"sw\t%4,-8(%0)\n\t"		"bne\t$1,%0,1b\n\t"		"sw\t%5,-4(%0)\n\t"		".set\tmips0\n\t"		".set\tat\n\t"		".set\treorder"		:"=r" (dummy1), "=r" (dummy2),		 "=&r" (reg1), "=&r" (reg2), "=&r" (reg3), "=&r" (reg4)		:"0" (to), "1" (from),		 "I" (PAGE_SIZE),		 "i" (Create_Dirty_Excl_D));}void pgd_init(unsigned long page){	unsigned long *p = (unsigned long *) page;	int i;	for(i = 0; i < USER_PTRS_PER_PGD; i+=8) {		p[i + 0] = (unsigned long) invalid_pte_table;		p[i + 1] = (unsigned long) invalid_pte_table;		p[i + 2] = (unsigned long) invalid_pte_table;		p[i + 3] = (unsigned long) invalid_pte_table;		p[i + 4] = (unsigned long) invalid_pte_table;		p[i + 5] = (unsigned long) invalid_pte_table;		p[i + 6] = (unsigned long) invalid_pte_table;		p[i + 7] = (unsigned long) invalid_pte_table;	}}