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Line 59... Line 59...
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#define PTL0_ENTRIES_ARCH   1024
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#define PTL0_ENTRIES_ARCH   1024
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#define PTL1_ENTRIES_ARCH   0
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#define PTL1_ENTRIES_ARCH   0
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#define PTL2_ENTRIES_ARCH   0
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#define PTL2_ENTRIES_ARCH   0
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#define PTL3_ENTRIES_ARCH   1024
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#define PTL3_ENTRIES_ARCH   1024
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#define PTL0_INDEX_ARCH(vaddr)  (((vaddr)>>22)&0x3ff)
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#define PTL0_INDEX_ARCH(vaddr)  (((vaddr) >> 22) & 0x3ff)
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#define PTL1_INDEX_ARCH(vaddr)  0
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#define PTL1_INDEX_ARCH(vaddr)  0
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#define PTL2_INDEX_ARCH(vaddr)  0
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#define PTL2_INDEX_ARCH(vaddr)  0
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#define PTL3_INDEX_ARCH(vaddr)  (((vaddr)>>12)&0x3ff)
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#define PTL3_INDEX_ARCH(vaddr)  (((vaddr) >> 12) & 0x3ff)
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#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *)((((pte_t *)(ptl0))[(i)].frame_address)<<12))
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#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *)((((pte_t *)(ptl0))[(i)].frame_address) << 12))
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#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      (ptl1)
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#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      (ptl1)
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#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      (ptl2)
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#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      (ptl2)
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#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((uintptr_t)((((pte_t *)(ptl3))[(i)].frame_address)<<12))
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#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((uintptr_t)((((pte_t *)(ptl3))[(i)].frame_address) << 12))
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#define SET_PTL0_ADDRESS_ARCH(ptl0)     (write_cr3((uintptr_t) (ptl0)))
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#define SET_PTL0_ADDRESS_ARCH(ptl0)     (write_cr3((uintptr_t) (ptl0)))
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#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)   (((pte_t *)(ptl0))[(i)].frame_address = (a)>>12)
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#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)   (((pte_t *)(ptl0))[(i)].frame_address = (a)>>12)
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#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
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#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
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#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
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#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
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#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
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#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
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#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)    set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))
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#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)    set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))
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#define PTE_VALID_ARCH(p)           (*((uint32_t *) (p)) != 0)
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#define PTE_VALID_ARCH(p)           (*((uint32_t *) (p)) != 0)
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#define PTE_PRESENT_ARCH(p)         ((p)->present != 0)
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#define PTE_PRESENT_ARCH(p)         ((p)->present != 0)
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#define PTE_GET_FRAME_ARCH(p)           ((p)->frame_address<<FRAME_WIDTH)
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#define PTE_GET_FRAME_ARCH(p)           ((p)->frame_address << FRAME_WIDTH)
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#define PTE_WRITABLE_ARCH(p)            ((p)->writeable != 0)
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#define PTE_WRITABLE_ARCH(p)            ((p)->writeable != 0)
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#define PTE_EXECUTABLE_ARCH(p)          1
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#define PTE_EXECUTABLE_ARCH(p)          1
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#ifndef __ASM__
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#ifndef __ASM__
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#include <mm/page.h>
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#include <mm/mm.h>
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#include <arch/types.h>
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#include <arch/mm/frame.h>
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#include <arch/interrupt.h>
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#include <typedefs.h>
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/* Page fault error codes. */
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/* Page fault error codes. */
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/** When bit on this position is 0, the page fault was caused by a not-present page. */
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/** When bit on this position is 0, the page fault was caused by a not-present page. */
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#define PFERR_CODE_P        (1<<0)
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#define PFERR_CODE_P        (1 << 0)
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/** When bit on this position is 1, the page fault was caused by a write. */
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/** When bit on this position is 1, the page fault was caused by a write. */
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#define PFERR_CODE_RW       (1<<1)
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#define PFERR_CODE_RW       (1 << 1)
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/** When bit on this position is 1, the page fault was caused in user mode. */
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/** When bit on this position is 1, the page fault was caused in user mode. */
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#define PFERR_CODE_US       (1<<2)
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#define PFERR_CODE_US       (1 << 2)
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/** When bit on this position is 1, a reserved bit was set in page directory. */
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/** When bit on this position is 1, a reserved bit was set in page directory. */
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#define PFERR_CODE_RSVD     (1<<3) 
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#define PFERR_CODE_RSVD     (1 << 3)   
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/** Page Table Entry. */
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struct page_specifier {
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    unsigned present : 1;
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    unsigned writeable : 1;
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    unsigned uaccessible : 1;
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    unsigned page_write_through : 1;
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    unsigned page_cache_disable : 1;
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    unsigned accessed : 1;
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    unsigned dirty : 1;
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    unsigned pat : 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 : 2;
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    unsigned frame_address : 20;
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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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    pte_t *p = &pt[i];
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    pte_t *p = &pt[i];
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    return (
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    return (
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        (!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT |
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        (!p->page_cache_disable) << PAGE_CACHEABLE_SHIFT |
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        (!p->present)<<PAGE_PRESENT_SHIFT |
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        (!p->present) << PAGE_PRESENT_SHIFT |
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        p->uaccessible<<PAGE_USER_SHIFT |
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        p->uaccessible << PAGE_USER_SHIFT |
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        1<<PAGE_READ_SHIFT |
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        1<<PAGE_READ_SHIFT |
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        p->writeable<<PAGE_WRITE_SHIFT |
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        p->writeable << PAGE_WRITE_SHIFT |
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        1<<PAGE_EXEC_SHIFT |
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        1<<PAGE_EXEC_SHIFT |
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        p->global<<PAGE_GLOBAL_SHIFT
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        p->global << PAGE_GLOBAL_SHIFT
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    );
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    );
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}
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}
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static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
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static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
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{
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{