diff options
Diffstat (limited to 'include/asm-generic/page.h')
-rw-r--r-- | include/asm-generic/page.h | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/include/asm-generic/page.h b/include/asm-generic/page.h deleted file mode 100644 index 9773582fd9..0000000000 --- a/include/asm-generic/page.h +++ /dev/null @@ -1,103 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_GENERIC_PAGE_H -#define __ASM_GENERIC_PAGE_H -/* - * Generic page.h implementation, for NOMMU architectures. - * This provides the dummy definitions for the memory management. - */ - -#ifdef CONFIG_MMU -#error need to provide a real asm/page.h -#endif - - -/* PAGE_SHIFT determines the page size */ - -#define PAGE_SHIFT 12 -#ifdef __ASSEMBLY__ -#define PAGE_SIZE (1 << PAGE_SHIFT) -#else -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#endif -#define PAGE_MASK (~(PAGE_SIZE-1)) - -#include <asm/setup.h> - -#ifndef __ASSEMBLY__ - -#define clear_page(page) memset((page), 0, PAGE_SIZE) -#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) - -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -/* - * These are used to make use of C type-checking.. - */ -typedef struct { - unsigned long pte; -} pte_t; -typedef struct { - unsigned long pmd[16]; -} pmd_t; -typedef struct { - unsigned long pgd; -} pgd_t; -typedef struct { - unsigned long pgprot; -} pgprot_t; -typedef struct page *pgtable_t; - -#define pte_val(x) ((x).pte) -#define pmd_val(x) ((&x)->pmd[0]) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -extern unsigned long memory_start; -extern unsigned long memory_end; - -#endif /* !__ASSEMBLY__ */ - -#define PAGE_OFFSET (0) - -#ifndef ARCH_PFN_OFFSET -#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) -#endif - -#ifndef __ASSEMBLY__ - -#define __va(x) ((void *)((unsigned long) (x))) -#define __pa(x) ((unsigned long) (x)) - -static inline unsigned long virt_to_pfn(const void *kaddr) -{ - return __pa(kaddr) >> PAGE_SHIFT; -} -#define virt_to_pfn virt_to_pfn -static inline void *pfn_to_virt(unsigned long pfn) -{ - return __va(pfn) << PAGE_SHIFT; -} -#define pfn_to_virt pfn_to_virt - -#define virt_to_page(addr) pfn_to_page(virt_to_pfn(addr)) -#define page_to_virt(page) pfn_to_virt(page_to_pfn(page)) - -#ifndef page_to_phys -#define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT) -#endif - -#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ - ((void *)(kaddr) < (void *)memory_end)) - -#endif /* __ASSEMBLY__ */ - -#include <asm-generic/memory_model.h> -#include <asm-generic/getorder.h> - -#endif /* __ASM_GENERIC_PAGE_H */ |