diff options
Diffstat (limited to 'arch/x86/include/asm/page_32.h')
-rw-r--r-- | arch/x86/include/asm/page_32.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/x86/include/asm/page_32.h b/arch/x86/include/asm/page_32.h new file mode 100644 index 000000000..94dbd51df --- /dev/null +++ b/arch/x86/include/asm/page_32.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_PAGE_32_H +#define _ASM_X86_PAGE_32_H + +#include <asm/page_32_types.h> + +#ifndef __ASSEMBLY__ + +#define __phys_addr_nodebug(x) ((x) - PAGE_OFFSET) +#ifdef CONFIG_DEBUG_VIRTUAL +extern unsigned long __phys_addr(unsigned long); +#else +#define __phys_addr(x) __phys_addr_nodebug(x) +#endif +#define __phys_addr_symbol(x) __phys_addr(x) +#define __phys_reloc_hide(x) RELOC_HIDE((x), 0) + +#ifdef CONFIG_FLATMEM +#define pfn_valid(pfn) ((pfn) < max_mapnr) +#endif /* CONFIG_FLATMEM */ + +#ifdef CONFIG_X86_USE_3DNOW +#include <asm/mmx.h> + +static inline void clear_page(void *page) +{ + mmx_clear_page(page); +} + +static inline void copy_page(void *to, void *from) +{ + mmx_copy_page(to, from); +} +#else /* !CONFIG_X86_USE_3DNOW */ +#include <linux/string.h> + +static inline void clear_page(void *page) +{ + memset(page, 0, PAGE_SIZE); +} + +static inline void copy_page(void *to, void *from) +{ + memcpy(to, from, PAGE_SIZE); +} +#endif /* CONFIG_X86_3DNOW */ +#endif /* !__ASSEMBLY__ */ + +#endif /* _ASM_X86_PAGE_32_H */ |