diff options
Diffstat (limited to 'arch/mips/mm/init.c')
| -rw-r--r-- | arch/mips/mm/init.c | 59 |
1 files changed, 8 insertions, 51 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 9cb47cefa..3e309e438 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -1,8 +1,11 @@ /* - * arch/mips/mm/init.c + * 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) 1991, 1992, 1993, 1994 Linus Torvalds - * Ported to MIPS by Ralf Baechle + * Copyright (C) 1994, 1995, 1996 by Ralf Baechle + * + * $Id: init.c,v 1.4 1998/03/21 08:01:45 ralf Exp $ */ #include <linux/config.h> #include <linux/signal.h> @@ -113,58 +116,12 @@ pte_t * __bad_pagetable(void) return (pte_t *)page; } -static inline void -__zeropage(unsigned long page) -{ - unsigned long dummy1, dummy2; - -#if (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) - /* - * Use 64bit code even for Linux/MIPS 32bit on R4000 - */ - __asm__ __volatile__( - ".set\tnoreorder\n" - ".set\tnoat\n\t" - ".set\tmips3\n" - "1:\tsd\t$0,(%0)\n\t" - "subu\t%1,1\n\t" - "bnez\t%1,1b\n\t" - "addiu\t%0,8\n\t" - ".set\tmips0\n\t" - ".set\tat\n" - ".set\treorder" - :"=r" (dummy1), - "=r" (dummy2) - :"0" (page), - "1" (PAGE_SIZE/8)); -#else /* (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) */ - __asm__ __volatile__( - ".set\tnoreorder\n" - "1:\tsw\t$0,(%0)\n\t" - "subu\t%1,1\n\t" - "bnez\t%1,1b\n\t" - "addiu\t%0,4\n\t" - ".set\treorder" - :"=r" (dummy1), - "=r" (dummy2) - :"0" (page), - "1" (PAGE_SIZE/4)); -#endif -} - -static inline void -zeropage(unsigned long page) -{ - flush_page_to_ram(page); - __zeropage(page); -} - pte_t __bad_page(void) { extern char empty_bad_page[PAGE_SIZE]; unsigned long page = (unsigned long)empty_bad_page; - zeropage(page); + clear_page(page); return pte_mkdirty(mk_pte(page, PAGE_SHARED)); } @@ -221,7 +178,7 @@ void mem_init(unsigned long start_mem, unsigned long end_mem) high_memory = (void *)end_mem; /* clear the zero-page */ - memset(empty_zero_page, 0, PAGE_SIZE); + clear_page(empty_zero_page); /* mark usable pages in the mem_map[] */ start_mem = PAGE_ALIGN(start_mem); |