/* * 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/pfn.h> #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; } pte_t; typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; #define pte_val(p) ((p).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); }) #define pmd_val(x) ((x).pmd) #define __pmd(x) ((pmd_t) { (x) } ) 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 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) ((p) >> PAGE_SHIFT) #define pfn_to_phys(pfn) PFN_PHYS(pfn) #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/getorder.h> #endif /* __ASSEMBLY__ */ #ifdef CONFIG_X86_32 #define __HAVE_ARCH_GATE_AREA 1 #endif #endif /* __UM_PAGE_H */
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Kbuild | File | 702 B | 0644 |
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a.out-core.h | File | 695 B | 0644 |
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bugs.h | File | 111 B | 0644 |
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cache.h | File | 483 B | 0644 |
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common.lds.S | File | 1.76 KB | 0644 |
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dma.h | File | 180 B | 0644 |
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fixmap.h | File | 1.63 KB | 0644 |
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hardirq.h | File | 558 B | 0644 |
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io.h | File | 339 B | 0644 |
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irq.h | File | 493 B | 0644 |
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irqflags.h | File | 865 B | 0644 |
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kmap_types.h | File | 219 B | 0644 |
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kvm_para.h | File | 34 B | 0644 |
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mmu.h | File | 558 B | 0644 |
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mmu_context.h | File | 1.87 KB | 0644 |
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page.h | File | 3.15 KB | 0644 |
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pgalloc.h | File | 1.46 KB | 0644 |
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pgtable-2level.h | File | 1.32 KB | 0644 |
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pgtable-3level.h | File | 2.88 KB | 0644 |
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pgtable.h | File | 9.88 KB | 0644 |
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processor-generic.h | File | 1.87 KB | 0644 |
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ptrace-generic.h | File | 1.13 KB | 0644 |
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sections.h | File | 219 B | 0644 |
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setup.h | File | 273 B | 0644 |
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smp.h | File | 121 B | 0644 |
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stacktrace.h | File | 1.06 KB | 0644 |
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syscall-generic.h | File | 2.67 KB | 0644 |
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sysrq.h | File | 182 B | 0644 |
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thread_info.h | File | 2.15 KB | 0644 |
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timex.h | File | 151 B | 0644 |
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tlb.h | File | 4.23 KB | 0644 |
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tlbflush.h | File | 978 B | 0644 |
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uaccess.h | File | 1.65 KB | 0644 |
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unwind.h | File | 213 B | 0644 |
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