diff options
Diffstat (limited to 'linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/page.h')
| -rw-r--r-- | linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/page.h | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/page.h b/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/page.h deleted file mode 100644 index 965effd266..0000000000 --- a/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/page.h +++ /dev/null @@ -1,217 +0,0 @@ -#ifndef _X86_64_PAGE_H -#define _X86_64_PAGE_H - -/* #include <linux/string.h> */ -#ifndef __ASSEMBLY__ -#include <linux/kernel.h> -#include <linux/types.h> -#include <asm/bug.h> -#endif -#include <xen/interface/xen.h> - -/* - * Need to repeat this here in order to not include pgtable.h (which in turn - * depends on definitions made here), but to be able to use the symbolic - * below. The preprocessor will warn if the two definitions aren't identical. - */ -#define _PAGE_PRESENT 0x001 - -#define arch_free_page(_page,_order) \ -({ int foreign = PageForeign(_page); \ - if (foreign) \ - PageForeignDestructor(_page); \ - foreign; \ -}) -#define HAVE_ARCH_FREE_PAGE - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#ifdef __ASSEMBLY__ -#define PAGE_SIZE (0x1 << PAGE_SHIFT) -#else -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#endif -#define PAGE_MASK (~(PAGE_SIZE-1)) - -/* See Documentation/x86_64/mm.txt for a description of the memory map. */ -#define __PHYSICAL_MASK_SHIFT 46 -#define __PHYSICAL_MASK ((1UL << __PHYSICAL_MASK_SHIFT) - 1) -#define __VIRTUAL_MASK_SHIFT 48 -#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1) - -#define PHYSICAL_PAGE_MASK (~(PAGE_SIZE-1) & __PHYSICAL_MASK) - -#define THREAD_ORDER 1 -#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) -#define CURRENT_MASK (~(THREAD_SIZE-1)) - -#define EXCEPTION_STACK_ORDER 0 -#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER) - -#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1) -#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER) - -#define IRQSTACK_ORDER 2 -#define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER) - -#define STACKFAULT_STACK 1 -#define DOUBLEFAULT_STACK 2 -#define NMI_STACK 3 -#define DEBUG_STACK 4 -#define MCE_STACK 5 -#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */ - -#define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1)) -#define LARGE_PAGE_SIZE (1UL << PMD_SHIFT) - -#define HPAGE_SHIFT PMD_SHIFT -#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -extern unsigned long end_pfn; - -#include <asm/maddr.h> - -void clear_page(void *); -void copy_page(void *, void *); - -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) -#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE - -/* - * These are used to make use of C type-checking.. - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pmd; } pmd_t; -typedef struct { unsigned long pud; } pud_t; -typedef struct { unsigned long pgd; } pgd_t; -#define PTE_MASK PHYSICAL_PAGE_MASK - -typedef struct { unsigned long pgprot; } pgprot_t; - -#define __pte_val(x) ((x).pte) -#define pte_val(x) ((__pte_val(x) & _PAGE_PRESENT) ? \ - pte_machine_to_phys(__pte_val(x)) : \ - __pte_val(x)) - -#define __pmd_val(x) ((x).pmd) -static inline unsigned long pmd_val(pmd_t x) -{ - unsigned long ret = __pmd_val(x); -#if CONFIG_XEN_COMPAT <= 0x030002 - if (ret) ret = pte_machine_to_phys(ret) | _PAGE_PRESENT; -#else - if (ret & _PAGE_PRESENT) ret = pte_machine_to_phys(ret); -#endif - return ret; -} - -#define __pud_val(x) ((x).pud) -static inline unsigned long pud_val(pud_t x) -{ - unsigned long ret = __pud_val(x); - if (ret & _PAGE_PRESENT) ret = pte_machine_to_phys(ret); - return ret; -} - -#define __pgd_val(x) ((x).pgd) -static inline unsigned long pgd_val(pgd_t x) -{ - unsigned long ret = __pgd_val(x); - if (ret & _PAGE_PRESENT) ret = pte_machine_to_phys(ret); - return ret; -} - -#define pgprot_val(x) ((x).pgprot) - -static inline pte_t __pte(unsigned long x) -{ - if (x & _PAGE_PRESENT) x = pte_phys_to_machine(x); - return ((pte_t) { (x) }); -} - -static inline pmd_t __pmd(unsigned long x) -{ - if (x & _PAGE_PRESENT) x = pte_phys_to_machine(x); - return ((pmd_t) { (x) }); -} - -static inline pud_t __pud(unsigned long x) -{ - if (x & _PAGE_PRESENT) x = pte_phys_to_machine(x); - return ((pud_t) { (x) }); -} - -static inline pgd_t __pgd(unsigned long x) -{ - if (x & _PAGE_PRESENT) x = pte_phys_to_machine(x); - return ((pgd_t) { (x) }); -} - -#define __pgprot(x) ((pgprot_t) { (x) } ) - -#define __PHYSICAL_START ((unsigned long)CONFIG_PHYSICAL_START) -#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) -#define __START_KERNEL_map 0xffffffff80000000UL -#define __PAGE_OFFSET 0xffff880000000000UL - -#else -#define __PHYSICAL_START CONFIG_PHYSICAL_START -#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) -#define __START_KERNEL_map 0xffffffff80000000 -#define __PAGE_OFFSET 0xffff880000000000 -#endif /* !__ASSEMBLY__ */ - -#if CONFIG_XEN_COMPAT <= 0x030002 -#undef LOAD_OFFSET -#define LOAD_OFFSET 0 -#endif - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - -#define KERNEL_TEXT_SIZE (40UL*1024*1024) -#define KERNEL_TEXT_START 0xffffffff80000000UL - -#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) - -/* Note: __pa(&symbol_visible_to_c) should be always replaced with __pa_symbol. - Otherwise you risk miscompilation. */ -#define __pa(x) (((unsigned long)(x)>=__START_KERNEL_map)?(unsigned long)(x) - (unsigned long)__START_KERNEL_map:(unsigned long)(x) - PAGE_OFFSET) -/* __pa_symbol should be used for C visible symbols. - This seems to be the official gcc blessed way to do such arithmetic. */ -#define __pa_symbol(x) \ - ({unsigned long v; \ - asm("" : "=r" (v) : "0" (x)); \ - __pa(v); }) - -#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) -#define __boot_va(x) __va(x) -#define __boot_pa(x) __pa(x) -#ifdef CONFIG_FLATMEM -#define pfn_valid(pfn) ((pfn) < end_pfn) -#endif - -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS \ - (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ - VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#define __HAVE_ARCH_GATE_AREA 1 - -#include <asm-generic/memory_model.h> -#include <asm-generic/page.h> - -#endif /* __KERNEL__ */ - -#endif /* _X86_64_PAGE_H */ |