LCOV - code coverage report
Current view: top level - arch/x86/include/asm - page_types.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1 1 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       1             : #ifndef _ASM_X86_PAGE_DEFS_H
       2             : #define _ASM_X86_PAGE_DEFS_H
       3             : 
       4             : #include <linux/const.h>
       5             : 
       6             : /* PAGE_SHIFT determines the page size */
       7             : #define PAGE_SHIFT      12
       8             : #define PAGE_SIZE       (_AC(1,UL) << PAGE_SHIFT)
       9             : #define PAGE_MASK       (~(PAGE_SIZE-1))
      10             : 
      11             : #define __PHYSICAL_MASK         ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1)
      12             : #define __VIRTUAL_MASK          ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
      13             : 
      14             : /* Cast PAGE_MASK to a signed type so that it is sign-extended if
      15             :    virtual addresses are 32-bits but physical addresses are larger
      16             :    (ie, 32-bit PAE). */
      17             : #define PHYSICAL_PAGE_MASK      (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
      18             : 
      19             : #define PMD_PAGE_SIZE           (_AC(1, UL) << PMD_SHIFT)
      20             : #define PMD_PAGE_MASK           (~(PMD_PAGE_SIZE-1))
      21             : 
      22             : #define HPAGE_SHIFT             PMD_SHIFT
      23             : #define HPAGE_SIZE              (_AC(1,UL) << HPAGE_SHIFT)
      24             : #define HPAGE_MASK              (~(HPAGE_SIZE - 1))
      25             : #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
      26             : 
      27             : #define HUGE_MAX_HSTATE 2
      28             : 
      29             : #define PAGE_OFFSET             ((unsigned long)__PAGE_OFFSET)
      30             : 
      31             : #define VM_DATA_DEFAULT_FLAGS \
      32             :         (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
      33             :          VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
      34             : 
      35             : #ifdef CONFIG_X86_64
      36             : #include <asm/page_64_types.h>
      37             : #else
      38             : #include <asm/page_32_types.h>
      39             : #endif  /* CONFIG_X86_64 */
      40             : 
      41             : #ifndef __ASSEMBLY__
      42             : 
      43             : extern int page_is_ram(unsigned long pagenr);
      44             : extern int devmem_is_allowed(unsigned long pagenr);
      45             : 
      46             : extern unsigned long max_low_pfn_mapped;
      47             : extern unsigned long max_pfn_mapped;
      48             : 
      49             : extern unsigned long init_memory_mapping(unsigned long start,
      50             :                                          unsigned long end);
      51             : 
      52             : extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn,
      53             :                                 int acpi, int k8);
      54             : extern void free_initmem(void);
      55           1 : 
      56             : #endif  /* !__ASSEMBLY__ */
      57             : 
      58             : #endif  /* _ASM_X86_PAGE_DEFS_H */

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