31422c51e0
Fix up all users. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
184 lines
4.3 KiB
C
184 lines
4.3 KiB
C
#ifndef _ASM_X86_PAGE_H
|
|
#define _ASM_X86_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))
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK)
|
|
#define PTE_MASK (_AT(long, PHYSICAL_PAGE_MASK))
|
|
|
|
#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
|
|
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
|
|
|
|
#define HPAGE_SHIFT PMD_SHIFT
|
|
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
|
|
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
|
|
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
|
|
|
|
/* to align the pointer to the (next) page boundary */
|
|
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
|
|
|
|
#define __PHYSICAL_MASK _AT(phys_addr_t, (_AC(1,ULL) << __PHYSICAL_MASK_SHIFT) - 1)
|
|
#define __VIRTUAL_MASK ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#include <linux/types.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_X86_64
|
|
#include <asm/page_64.h>
|
|
#define max_pfn_mapped end_pfn_map
|
|
#else
|
|
#include <asm/page_32.h>
|
|
#define max_pfn_mapped max_low_pfn
|
|
#endif /* CONFIG_X86_64 */
|
|
|
|
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
|
|
|
|
#define VM_DATA_DEFAULT_FLAGS \
|
|
(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
|
|
VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
|
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
extern int page_is_ram(unsigned long pagenr);
|
|
|
|
struct page;
|
|
|
|
static void inline clear_user_page(void *page, unsigned long vaddr,
|
|
struct page *pg)
|
|
{
|
|
clear_page(page);
|
|
}
|
|
|
|
static void inline copy_user_page(void *to, void *from, unsigned long vaddr,
|
|
struct page *topage)
|
|
{
|
|
copy_page(to, from);
|
|
}
|
|
|
|
#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
|
|
alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
|
|
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
|
|
|
|
typedef struct { pgdval_t pgd; } pgd_t;
|
|
typedef struct { pgprotval_t pgprot; } pgprot_t;
|
|
|
|
static inline pgd_t native_make_pgd(pgdval_t val)
|
|
{
|
|
return (pgd_t) { val };
|
|
}
|
|
|
|
static inline pgdval_t native_pgd_val(pgd_t pgd)
|
|
{
|
|
return pgd.pgd;
|
|
}
|
|
|
|
#if PAGETABLE_LEVELS >= 3
|
|
#if PAGETABLE_LEVELS == 4
|
|
typedef struct { pudval_t pud; } pud_t;
|
|
|
|
static inline pud_t native_make_pud(pmdval_t val)
|
|
{
|
|
return (pud_t) { val };
|
|
}
|
|
|
|
static inline pudval_t native_pud_val(pud_t pud)
|
|
{
|
|
return pud.pud;
|
|
}
|
|
#else /* PAGETABLE_LEVELS == 3 */
|
|
#include <asm-generic/pgtable-nopud.h>
|
|
|
|
static inline pudval_t native_pud_val(pud_t pud)
|
|
{
|
|
return native_pgd_val(pud.pgd);
|
|
}
|
|
#endif /* PAGETABLE_LEVELS == 4 */
|
|
|
|
typedef struct { pmdval_t pmd; } pmd_t;
|
|
|
|
static inline pmd_t native_make_pmd(pmdval_t val)
|
|
{
|
|
return (pmd_t) { val };
|
|
}
|
|
|
|
static inline pmdval_t native_pmd_val(pmd_t pmd)
|
|
{
|
|
return pmd.pmd;
|
|
}
|
|
#else /* PAGETABLE_LEVELS == 2 */
|
|
#include <asm-generic/pgtable-nopmd.h>
|
|
|
|
static inline pmdval_t native_pmd_val(pmd_t pmd)
|
|
{
|
|
return native_pgd_val(pmd.pud.pgd);
|
|
}
|
|
#endif /* PAGETABLE_LEVELS >= 3 */
|
|
|
|
static inline pte_t native_make_pte(pteval_t val)
|
|
{
|
|
return (pte_t) { .pte = val };
|
|
}
|
|
|
|
static inline pteval_t native_pte_val(pte_t pte)
|
|
{
|
|
return pte.pte;
|
|
}
|
|
|
|
#define pgprot_val(x) ((x).pgprot)
|
|
#define __pgprot(x) ((pgprot_t) { (x) } )
|
|
|
|
#ifdef CONFIG_PARAVIRT
|
|
#include <asm/paravirt.h>
|
|
#else /* !CONFIG_PARAVIRT */
|
|
|
|
#define pgd_val(x) native_pgd_val(x)
|
|
#define __pgd(x) native_make_pgd(x)
|
|
|
|
#ifndef __PAGETABLE_PUD_FOLDED
|
|
#define pud_val(x) native_pud_val(x)
|
|
#define __pud(x) native_make_pud(x)
|
|
#endif
|
|
|
|
#ifndef __PAGETABLE_PMD_FOLDED
|
|
#define pmd_val(x) native_pmd_val(x)
|
|
#define __pmd(x) native_make_pmd(x)
|
|
#endif
|
|
|
|
#define pte_val(x) native_pte_val(x)
|
|
#define __pte(x) native_make_pte(x)
|
|
|
|
#endif /* CONFIG_PARAVIRT */
|
|
|
|
#define __pa(x) __phys_addr((unsigned long)(x))
|
|
/* __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) __pa(__phys_reloc_hide((unsigned long)(x)))
|
|
|
|
#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
|
|
|
|
#define __boot_va(x) __va(x)
|
|
#define __boot_pa(x) __pa(x)
|
|
|
|
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
|
|
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
|
|
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#include <asm-generic/memory_model.h>
|
|
#include <asm-generic/page.h>
|
|
|
|
#define __HAVE_ARCH_GATE_AREA 1
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_X86_PAGE_H */
|