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#include <mm/page.h>
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#include <mm/page.h>
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#include <arch/types.h>
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#include <arch/types.h>
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#include <arch/mm/frame.h>
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#include <arch/mm/frame.h>
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#include <typedefs.h>
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#include <typedefs.h>
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/** Page Table Entry. */
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struct page_specifier {
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struct page_specifier {
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    unsigned present : 1;
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    unsigned present : 1;
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    unsigned writeable : 1;
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    unsigned writeable : 1;
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    unsigned uaccessible : 1;
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    unsigned uaccessible : 1;
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    unsigned page_write_through : 1;
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    unsigned page_write_through : 1;
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    unsigned page_cache_disable : 1;
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    unsigned page_cache_disable : 1;
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    unsigned accessed : 1;
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    unsigned accessed : 1;
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    unsigned dirty : 1;
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    unsigned dirty : 1;
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    unsigned pat : 1;
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    unsigned pat : 1;
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    unsigned global : 1;
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    unsigned global : 1;
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    unsigned soft_valid : 1;    /**< Valid content even if the present bit is not set. */
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    unsigned avl : 3;
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    unsigned avl : 2;
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    unsigned frame_address : 20;
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    unsigned frame_address : 20;
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} __attribute__ ((packed));
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} __attribute__ ((packed));
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static inline int get_pt_flags(pte_t *pt, index_t i)
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static inline int get_pt_flags(pte_t *pt, index_t i)
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{
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{
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    p->page_cache_disable = !(flags & PAGE_CACHEABLE);
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    p->page_cache_disable = !(flags & PAGE_CACHEABLE);
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    p->present = !(flags & PAGE_NOT_PRESENT);
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    p->present = !(flags & PAGE_NOT_PRESENT);
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    p->uaccessible = (flags & PAGE_USER) != 0;
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    p->uaccessible = (flags & PAGE_USER) != 0;
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    p->writeable = (flags & PAGE_WRITE) != 0;
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    p->writeable = (flags & PAGE_WRITE) != 0;
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    p->global = (flags & PAGE_GLOBAL) != 0;
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    p->global = (flags & PAGE_GLOBAL) != 0;
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    /*
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     * Ensure that there is at least one bit set even if the present bit is cleared.
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     */
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    p->soft_valid = true;
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}
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}
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extern void page_arch_init(void);
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extern void page_arch_init(void);
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#endif /* __ASM__ */
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#endif /* __ASM__ */