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/*
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/*
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 * Copyright (C) 2005 Martin Decky
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 * Copyright (C) 2005 Martin Decky
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#ifndef __amd64_PAGE_H__
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#ifndef __amd64_PAGE_H__
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#define __amd64_PAGE_H__
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#define __amd64_PAGE_H__
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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/page.h>
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#  include <arch/mm/frame.h>
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#  include <arch/mm/frame.h>
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#  include <arch/types.h>
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#  include <arch/types.h>
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#endif
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#endif
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#define PAGE_SIZE   FRAME_SIZE
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#define PAGE_SIZE   FRAME_SIZE
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#ifndef __ASM__
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#ifndef __ASM__
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# define KA2PA(x)   (((__address) (x)) + 0x80000000)
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# define KA2PA(x)      (((__address) (x)) + 0x80000000)
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# define PA2KA(x)   (((__address) (x)) - 0x80000000)
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# define PA2KA(x)      (((__address) (x)) - 0x80000000)
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#else
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#else
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# define KA2PA(x)   ((x) + 0x80000000)
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# define KA2PA(x)      ((x) + 0x80000000)
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# define PA2KA(x)   ((x)) - 0x80000000)
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//# define PA2KA(x)      ((x)) - 0x80000000)
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#endif
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#endif
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#define PTL0_INDEX_ARCH(vaddr)      0
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#define PTL0_INDEX_ARCH(vaddr)  (((vaddr)>>39)&0x1ff)
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#define PTL1_INDEX_ARCH(vaddr)      0
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#define PTL1_INDEX_ARCH(vaddr)  (((vaddr)>>30)&0x1ff)
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#define PTL2_INDEX_ARCH(vaddr)      0
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#define PTL2_INDEX_ARCH(vaddr)  (((vaddr)>>21)&0x1ff)
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#define PTL3_INDEX_ARCH(vaddr)      0
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#define PTL3_INDEX_ARCH(vaddr)  (((vaddr)>>12)&0x1ff)
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#define GET_PTL0_ADDRESS_ARCH()     0
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#define GET_PTL0_ADDRESS_ARCH()         ((pte_t *) read_cr3())
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#define SET_PTL0_ADDRESS_ARCH(ptl0)
 - 
 
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 - 
 
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#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *) 0)
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#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl0))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 )))
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#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      ((pte_t *) 0)
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#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl1))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 )))
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#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      ((pte_t *) 0)
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#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl2))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 )))
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#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((pte_t *) 0)
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#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((__address *) ((((__u64) ((pte_t *)(ptl3))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 )))
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#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)
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#define SET_PTL0_ADDRESS_ARCH(ptl0)     (write_cr3((__address) (ptl0)))
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#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
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#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)   set_pt_addr((pte_t *)(ptl0), (index_t)(i), a)
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#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)       set_pt_addr((pte_t *)(ptl1), (index_t)(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)       set_pt_addr((pte_t *)(ptl2), (index_t)(i), a)
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#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)
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#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)  set_pt_addr((pte_t *)(ptl3), (index_t)(i), a)
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#define GET_PTL1_FLAGS_ARCH(ptl0, i)        0
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#define GET_PTL1_FLAGS_ARCH(ptl0, i)        get_pt_flags((pte_t *)(ptl0), (index_t)(i))
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#define GET_PTL2_FLAGS_ARCH(ptl1, i)        0
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#define GET_PTL2_FLAGS_ARCH(ptl1, i)        get_pt_flags((pte_t *)(ptl1), (index_t)(i))
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#define GET_PTL3_FLAGS_ARCH(ptl2, i)        0
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#define GET_PTL3_FLAGS_ARCH(ptl2, i)        get_pt_flags((pte_t *)(ptl2), (index_t)(i))
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#define GET_FRAME_FLAGS_ARCH(ptl3, i)       0
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#define GET_FRAME_FLAGS_ARCH(ptl3, i)       get_pt_flags((pte_t *)(ptl3), (index_t)(i))
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#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)
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#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)     set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x))
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#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
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#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)         set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x))
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#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
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#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)         set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x))
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#define SET_FRAME_FLAGS_ARCH(ptl3, 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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#ifndef __ASM__
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#ifndef __ASM__
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typedef struct page_specifier pte_t;
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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 unused: 1;
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    unsigned global : 1;
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    unsigned avl : 3;
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    unsigned addr_12_31 : 30;
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    unsigned addr_32_51 : 21;
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    unsigned no_execute : 1;
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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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{
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    pte_t *p = &pt[i];
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    return (
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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->uaccessible<<PAGE_USER_SHIFT |
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        1<<PAGE_READ_SHIFT |
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        p->writeable<<PAGE_WRITE_SHIFT |
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        (!p->no_execute)<<PAGE_EXEC_SHIFT
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    );
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}
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static inline void set_pt_addr(pte_t *pt, index_t i, __address a)
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{
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    pte_t *p = &pt[i];
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    p->addr_12_31 = (a >> 12) & 0xfffff;
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    p->addr_32_51 = a >> 32;
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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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{
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    pte_t *p = &pt[i];
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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->uaccessible = (flags & PAGE_USER) != 0;
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    p->writeable = (flags & PAGE_WRITE) != 0;
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    p->no_execute = (flags & PAGE_EXEC) == 0;
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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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typedef __u64 pte_t;
 - 
 
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#endif
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#endif
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#endif
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#endif
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