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Diffstat (limited to 'include/asm-sh/page.h')
| -rw-r--r-- | include/asm-sh/page.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h deleted file mode 100644 index 6bc9bba1010..00000000000 --- a/include/asm-sh/page.h +++ /dev/null @@ -1,162 +0,0 @@ -#ifndef __ASM_SH_PAGE_H -#define __ASM_SH_PAGE_H - -/* - * Copyright (C) 1999 Niibe Yutaka - */ - -/* - [ P0/U0 (virtual) ] 0x00000000 <------ User space - [ P1 (fixed) cached ] 0x80000000 <------ Kernel space - [ P2 (fixed) non-cachable] 0xA0000000 <------ Physical access - [ P3 (virtual) cached] 0xC0000000 <------ vmalloced area - [ P4 control ] 0xE0000000 - */ - -#ifdef __KERNEL__ - -/* PAGE_SHIFT determines the page size */ -#if defined(CONFIG_PAGE_SIZE_4KB) -# define PAGE_SHIFT 12 -#elif defined(CONFIG_PAGE_SIZE_8KB) -# define PAGE_SHIFT 13 -#elif defined(CONFIG_PAGE_SIZE_64KB) -# define PAGE_SHIFT 16 -#else -# error "Bogus kernel page size?" -#endif - -#ifdef __ASSEMBLY__ -#define PAGE_SIZE (1 << PAGE_SHIFT) -#else -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#endif - -#define PAGE_MASK (~(PAGE_SIZE-1)) -#define PTE_MASK PAGE_MASK - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -#define HPAGE_SHIFT 16 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K) -#define HPAGE_SHIFT 18 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB) -#define HPAGE_SHIFT 20 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) -#define HPAGE_SHIFT 22 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64MB) -#define HPAGE_SHIFT 26 -#endif - -#ifdef CONFIG_HUGETLB_PAGE -#define HPAGE_SIZE (1UL << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE-1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) -#endif - -#ifndef __ASSEMBLY__ - -extern void (*clear_page)(void *to); -extern void (*copy_page)(void *to, void *from); - -extern unsigned long shm_align_mask; -extern unsigned long max_low_pfn, min_low_pfn; -extern unsigned long memory_start, memory_end; - -#ifdef CONFIG_MMU -extern void clear_page_slow(void *to); -extern void copy_page_slow(void *to, void *from); -#else -extern void clear_page_nommu(void *to); -extern void copy_page_nommu(void *to, void *from); -#endif - -#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ - defined(CONFIG_SH7705_CACHE_32KB)) -struct page; -extern void clear_user_page(void *to, unsigned long address, struct page *pg); -extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); -extern void __clear_user_page(void *to, void *orig_to); -extern void __copy_user_page(void *to, void *from, void *orig_to); -#elif defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH3) || !defined(CONFIG_MMU) -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#endif - -/* - * These are used to make use of C type-checking.. - */ -#ifdef CONFIG_X2TLB -typedef struct { unsigned long pte_low, pte_high; } pte_t; -typedef struct { unsigned long long pgprot; } pgprot_t; -#define pte_val(x) \ - ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) -#define __pte(x) \ - ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) -#else -typedef struct { unsigned long pte_low; } pte_t; -typedef struct { unsigned long pgprot; } pgprot_t; -#define pte_val(x) ((x).pte_low) -#define __pte(x) ((pte_t) { (x) } ) -#endif - -typedef struct { unsigned long pgd; } pgd_t; - -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -#endif /* !__ASSEMBLY__ */ - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - -/* - * IF YOU CHANGE THIS, PLEASE ALSO CHANGE - * - * arch/sh/kernel/vmlinux.lds.S - * - * which has the same constant encoded.. - */ - -#define __MEMORY_START CONFIG_MEMORY_START -#define __MEMORY_SIZE CONFIG_MEMORY_SIZE - -#define PAGE_OFFSET CONFIG_PAGE_OFFSET -#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -#define phys_to_page(phys) (pfn_to_page(phys >> PAGE_SHIFT)) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) - -/* PFN start number, because of __MEMORY_START */ -#define PFN_START (__MEMORY_START >> PAGE_SHIFT) -#define ARCH_PFN_OFFSET (PFN_START) -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#ifdef CONFIG_FLATMEM -#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn) -#endif -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include <asm-generic/memory_model.h> -#include <asm-generic/page.h> - -/* vDSO support */ -#ifdef CONFIG_VSYSCALL -#define __HAVE_ARCH_GATE_AREA -#endif - -/* - * Slub defaults to 8-byte alignment, we're only interested in 4. - * Slab defaults to BYTES_PER_WORD, which ends up being the same anyways. - */ -#define ARCH_KMALLOC_MINALIGN 4 -#define ARCH_SLAB_MINALIGN 4 - -#endif /* __KERNEL__ */ -#endif /* __ASM_SH_PAGE_H */ |