| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_X86_PAGE_32_H |
| 3 | #define _ASM_X86_PAGE_32_H |
| 4 | |
| 5 | #include <asm/page_32_types.h> |
| 6 | |
| 7 | #ifndef __ASSEMBLY__ |
| 8 | |
| 9 | #define __phys_addr_nodebug(x) ((x) - PAGE_OFFSET) |
| 10 | #ifdef CONFIG_DEBUG_VIRTUAL |
| 11 | extern unsigned long __phys_addr(unsigned long); |
| 12 | #else |
| 13 | #define __phys_addr(x) __phys_addr_nodebug(x) |
| 14 | #endif |
| 15 | #define __phys_addr_symbol(x) __phys_addr(x) |
| 16 | #define __phys_reloc_hide(x) RELOC_HIDE((x), 0) |
| 17 | |
| 18 | #ifdef CONFIG_FLATMEM |
| 19 | #define pfn_valid(pfn) ((pfn) < max_mapnr) |
| 20 | #endif /* CONFIG_FLATMEM */ |
| 21 | |
| 22 | #ifdef CONFIG_X86_USE_3DNOW |
| 23 | #include <asm/mmx.h> |
| 24 | |
| 25 | static inline void clear_page(void *page) |
| 26 | { |
| 27 | mmx_clear_page(page); |
| 28 | } |
| 29 | |
| 30 | static inline void copy_page(void *to, void *from) |
| 31 | { |
| 32 | mmx_copy_page(to, from); |
| 33 | } |
| 34 | #else /* !CONFIG_X86_USE_3DNOW */ |
| 35 | #include <linux/string.h> |
| 36 | |
| 37 | static inline void clear_page(void *page) |
| 38 | { |
| 39 | memset(page, 0, PAGE_SIZE); |
| 40 | } |
| 41 | |
| 42 | static inline void copy_page(void *to, void *from) |
| 43 | { |
| 44 | memcpy(to, from, PAGE_SIZE); |
| 45 | } |
| 46 | #endif /* CONFIG_X86_3DNOW */ |
| 47 | #endif /* !__ASSEMBLY__ */ |
| 48 | |
| 49 | #endif /* _ASM_X86_PAGE_32_H */ |