diff options
Diffstat (limited to 'include/asm-parisc/page.h')
| -rw-r--r-- | include/asm-parisc/page.h | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h deleted file mode 100644 index c3941f09a87..00000000000 --- a/include/asm-parisc/page.h +++ /dev/null @@ -1,173 +0,0 @@ -#ifndef _PARISC_PAGE_H -#define _PARISC_PAGE_H - -#include <linux/const.h> - -#if defined(CONFIG_PARISC_PAGE_SIZE_4KB) -# define PAGE_SHIFT 12 -#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB) -# define PAGE_SHIFT 14 -#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB) -# define PAGE_SHIFT 16 -#else -# error "unknown default kernel page size" -#endif -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - - -#ifndef __ASSEMBLY__ - -#include <asm/types.h> -#include <asm/cache.h> - -#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) -#define copy_page(to,from) copy_user_page_asm((void *)(to), (void *)(from)) - -struct page; - -void copy_user_page_asm(void *to, void *from); -void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, - struct page *pg); -void clear_user_page(void *page, unsigned long vaddr, struct page *pg); - -/* - * These are used to make use of C type-checking.. - */ -#define STRICT_MM_TYPECHECKS -#ifdef STRICT_MM_TYPECHECKS -typedef struct { unsigned long pte; -#if !defined(CONFIG_64BIT) - unsigned long future_flags; - /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY - to 2, but then strangely the identical 32bit kernel boots on a - c3000(pa20), but not any longer on a 715(pa11). - Still investigating... HelgeD. - */ -#endif -} pte_t; /* either 32 or 64bit */ - -/* NOTE: even on 64 bits, these entries are __u32 because we allocate - * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */ -typedef struct { __u32 pmd; } pmd_t; -typedef struct { __u32 pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; - -#define pte_val(x) ((x).pte) -/* These do not work lvalues, so make sure we don't use them as such. */ -#define pmd_val(x) ((x).pmd + 0) -#define pgd_val(x) ((x).pgd + 0) -#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) } ) - -#define __pmd_val_set(x,n) (x).pmd = (n) -#define __pgd_val_set(x,n) (x).pgd = (n) - -#else -/* - * .. while these make it easier on the compiler - */ -typedef unsigned long pte_t; -typedef __u32 pmd_t; -typedef __u32 pgd_t; -typedef unsigned long pgprot_t; - -#define pte_val(x) (x) -#define pmd_val(x) (x) -#define pgd_val(x) (x) -#define pgprot_val(x) (x) - -#define __pte(x) (x) -#define __pmd(x) (x) -#define __pgd(x) (x) -#define __pgprot(x) (x) - -#define __pmd_val_set(x,n) (x) = (n) -#define __pgd_val_set(x,n) (x) = (n) - -#endif /* STRICT_MM_TYPECHECKS */ - -typedef struct page *pgtable_t; - -typedef struct __physmem_range { - unsigned long start_pfn; - unsigned long pages; /* PAGE_SIZE pages */ -} physmem_range_t; - -extern physmem_range_t pmem_ranges[]; -extern int npmem_ranges; - -#endif /* !__ASSEMBLY__ */ - -/* WARNING: The definitions below must match exactly to sizeof(pte_t) - * etc - */ -#ifdef CONFIG_64BIT -#define BITS_PER_PTE_ENTRY 3 -#define BITS_PER_PMD_ENTRY 2 -#define BITS_PER_PGD_ENTRY 2 -#else -#define BITS_PER_PTE_ENTRY 3 -#define BITS_PER_PMD_ENTRY 2 -#define BITS_PER_PGD_ENTRY BITS_PER_PMD_ENTRY -#endif -#define PGD_ENTRY_SIZE (1UL << BITS_PER_PGD_ENTRY) -#define PMD_ENTRY_SIZE (1UL << BITS_PER_PMD_ENTRY) -#define PTE_ENTRY_SIZE (1UL << BITS_PER_PTE_ENTRY) - -#define LINUX_GATEWAY_SPACE 0 - -/* This governs the relationship between virtual and physical addresses. - * If you alter it, make sure to take care of our various fixed mapping - * segments in fixmap.h */ -#ifdef CONFIG_64BIT -#define __PAGE_OFFSET (0x40000000) /* 1GB */ -#else -#define __PAGE_OFFSET (0x10000000) /* 256MB */ -#endif - -#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) - -/* The size of the gateway page (we leave lots of room for expansion) */ -#define GATEWAY_PAGE_SIZE 0x4000 - -/* The start of the actual kernel binary---used in vmlinux.lds.S - * Leave some space after __PAGE_OFFSET for detecting kernel null - * ptr derefs */ -#define KERNEL_BINARY_TEXT_START (__PAGE_OFFSET + 0x100000) - -/* These macros don't work for 64-bit C code -- don't allow in C at all */ -#ifdef __ASSEMBLY__ -# define PA(x) ((x)-__PAGE_OFFSET) -# define VA(x) ((x)+__PAGE_OFFSET) -#endif -#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) - -#ifndef CONFIG_DISCONTIGMEM -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#endif /* CONFIG_DISCONTIGMEM */ - -#ifdef CONFIG_HUGETLB_PAGE -#define HPAGE_SHIFT 22 /* 4MB (is this fixed?) */ -#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#endif - -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define virt_to_page(kaddr) pfn_to_page(__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> - -#endif /* _PARISC_PAGE_H */ |