summaryrefslogtreecommitdiff
path: root/include/asm-um/page.h
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2008-08-18 03:13:17 +0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-23 09:55:19 +0400
commit8ede0bdb63305d3353efd97e9af6210afb05734e (patch)
treea9500a323d0a2dcadca43c23b5c20186f6d9b724 /include/asm-um/page.h
parent8569c9140bd41089f9b6be8837ca421102714a90 (diff)
downloadlinux-8ede0bdb63305d3353efd97e9af6210afb05734e.tar.xz
x86, um: initial part of asm-um move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/asm-um/page.h')
-rw-r--r--include/asm-um/page.h122
1 files changed, 0 insertions, 122 deletions
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
deleted file mode 100644
index a6df1f13d732..000000000000
--- a/include/asm-um/page.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
- * Copyright 2003 PathScale, Inc.
- * Licensed under the GPL
- */
-
-#ifndef __UM_PAGE_H
-#define __UM_PAGE_H
-
-#include <linux/const.h>
-
-/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT 12
-#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
-
-#ifndef __ASSEMBLY__
-
-struct page;
-
-#include <linux/types.h>
-#include <asm/vm-flags.h>
-
-/*
- * These are used to make use of C type-checking..
- */
-
-#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from) memcpy((void *)(to), (void *)(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)
-
-#if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT)
-
-typedef struct { unsigned long pte_low, pte_high; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
-typedef struct { unsigned long pgd; } pgd_t;
-#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32))
-
-#define pte_get_bits(pte, bits) ((pte).pte_low & (bits))
-#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits))
-#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits))
-#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \
- smp_wmb(); \
- (to).pte_low = (from).pte_low; })
-#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high)
-#define pte_set_val(pte, phys, prot) \
- ({ (pte).pte_high = (phys) >> 32; \
- (pte).pte_low = (phys) | pgprot_val(prot); })
-
-#define pmd_val(x) ((x).pmd)
-#define __pmd(x) ((pmd_t) { (x) } )
-
-typedef unsigned long long pfn_t;
-typedef unsigned long long phys_t;
-
-#else
-
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pgd; } pgd_t;
-
-#ifdef CONFIG_3_LEVEL_PGTABLES
-typedef struct { unsigned long pmd; } pmd_t;
-#define pmd_val(x) ((x).pmd)
-#define __pmd(x) ((pmd_t) { (x) } )
-#endif
-
-#define pte_val(x) ((x).pte)
-
-
-#define pte_get_bits(p, bits) ((p).pte & (bits))
-#define pte_set_bits(p, bits) ((p).pte |= (bits))
-#define pte_clear_bits(p, bits) ((p).pte &= ~(bits))
-#define pte_copy(to, from) ((to).pte = (from).pte)
-#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE))
-#define pte_set_val(p, phys, prot) (p).pte = (phys | pgprot_val(prot))
-
-typedef unsigned long pfn_t;
-typedef unsigned long phys_t;
-
-#endif
-
-typedef struct { unsigned long pgprot; } pgprot_t;
-
-typedef struct page *pgtable_t;
-
-#define pgd_val(x) ((x).pgd)
-#define pgprot_val(x) ((x).pgprot)
-
-#define __pte(x) ((pte_t) { (x) } )
-#define __pgd(x) ((pgd_t) { (x) } )
-#define __pgprot(x) ((pgprot_t) { (x) } )
-
-extern unsigned long uml_physmem;
-
-#define PAGE_OFFSET (uml_physmem)
-#define KERNELBASE PAGE_OFFSET
-
-#define __va_space (8*1024*1024)
-
-#include "mem.h"
-
-/* Cast to unsigned long before casting to void * to avoid a warning from
- * mmap_kmem about cutting a long long down to a void *. Not sure that
- * casting is the right thing, but 32-bit UML can't have 64-bit virtual
- * addresses
- */
-#define __pa(virt) to_phys((void *) (unsigned long) (virt))
-#define __va(phys) to_virt((unsigned long) (phys))
-
-#define phys_to_pfn(p) ((pfn_t) ((p) >> PAGE_SHIFT))
-#define pfn_to_phys(pfn) ((phys_t) ((pfn) << PAGE_SHIFT))
-
-#define pfn_valid(pfn) ((pfn) < max_mapnr)
-#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v)))
-
-#include <asm-generic/memory_model.h>
-#include <asm-generic/page.h>
-
-#endif /* __ASSEMBLY__ */
-#endif /* __UM_PAGE_H */