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/*
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/*
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 * Copyright (C) 2006 Jakub Jermar
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 * Copyright (C) 2006 Jakub Jermar
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 * Copyright (C) 2006 Jakub Vana
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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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 * (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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#include <arch/mm/page.h>
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#include <arch/mm/page.h>
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#include <arch/types.h>
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#include <genarch/mm/page_ht.h>
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#include <genarch/mm/page_ht.h>
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#include <mm/asid.h>
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#include <arch/types.h>
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#include <print.h>
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#include <print.h>
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#include <mm/page.h>
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#include <mm/page.h>
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#include <mm/frame.h>
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#include <config.h>
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#include <config.h>
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#include <panic.h>
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#include <panic.h>
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#include <arch/asm.h>
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#include <arch/asm.h>
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#include <arch/barrier.h>
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__u64 thash(__u64 va);
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/** Initialize VHPT and region registers. */
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__u64 thash(__u64 va)
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static void set_vhpt_environment(void)
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{
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    __u64 ret;
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    asm
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    (
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        "thash %0=%1;;"
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        :"=r"(ret)
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        :"r" (va)
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    );
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    return ret;
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}
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__u64 ttag(__u64 va);
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__u64 ttag(__u64 va)
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{
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{
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    __u64 ret;
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    asm
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    (
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        "ttag %0=%1;;"
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        :"=r"(ret)
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        :"r" (va)
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    );
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    return ret;
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}
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static void set_VHPT_environment(void)
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{
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    /*
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    TODO:
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    */
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    int i;
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    /* First set up REGION REGISTER 0 */
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    region_register rr;
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    region_register rr;
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    rr.map.ve=0;                  /*Disable Walker*/
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    rr.map.ps=PAGE_WIDTH;
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    pta_register pta;  
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    rr.map.rid=REGION_RID_MAIN;
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    int i;
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    asm
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    (
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    /*
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        ";;\n"
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        "srlz.i;;\n"
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        "srlz.d;;\n"
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        "{mov rr[r0]=%0};;\n"
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     * First set up kernel region register.
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        "srlz.i;;\n"
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        "srlz.d;;\n"
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        ";;\n"
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        :
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     */
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        :"r"(rr.word)
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    rr.word = rr_read(VRN_KERNEL);
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    );
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    /* And Invalidate the rest of REGION REGISTERS */
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    rr.map.ve = 0;                  /* disable VHPT walker */
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    for(i=1;i<REGION_REGISTERS;i++)
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    rr.map.ps = PAGE_WIDTH;
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    {
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        rr.map.rid=REGION_RID_FIRST_INVALID+i-1;
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    rr.map.rid = ASID_KERNEL;
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        asm
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        (
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            ";;\n"
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/*          "mov r8=%1;;\n"*/
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/*          "mov rr[r8]=%0;;\n"*/
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    rr_write(VRN_KERNEL, rr.word);
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            "srlz.i;;\n"
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            "srlz.d;;\n"
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            "{mov rr[%1]=%0};;\n"
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            "srlz.i;;\n"
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    srlz_i();
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            "srlz.d;;\n"
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    srlz_d();
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            :
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            :"r"(rr.word),"r"(i)
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            :"r8"
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        );
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    };
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    /*
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     * And invalidate the rest of region register.
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     */
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    for(i = 0; i < REGION_REGISTERS; i++) {
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        /* skip kernel rr */
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        if (i == VRN_KERNEL)
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            continue;
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        rr.word == rr_read(i);
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        rr.map.rid = ASID_INVALID;
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        rr_write(i, rr.word);
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        srlz_i();
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        srlz_d();
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    }
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    PTA_register pta;
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    pta.map.ve=0;                   /*Disable Walker*/
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    pta.map.vf=1;                   /*Large entry format*/
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    pta.map.size=VHPT_WIDTH;
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    pta.map.base=VHPT_BASE;
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    /*
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    return ;
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     * Allocate VHPT and invalidate all its entries.
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     */
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    printf("pta struct size:%d\n",sizeof(pta));
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    page_ht = (pte_t *) frame_alloc(FRAME_KA, VHPT_WIDTH - FRAME_WIDTH, NULL);
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    ht_invalidate_all();
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    /*Write PTA*/
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    asm
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    (
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    /*
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        "mov cr8=%0;;"
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     * Set up PTA register.
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        :
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     */
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    pta.word = pta_read();
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    pta.map.ve = 0;                   /* disable VHPT walker */
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    pta.map.vf = 1;                   /* large entry format */
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    pta.map.size = VHPT_WIDTH;
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    pta.map.base = (__address) page_ht;
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        :"r"(pta.word)
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    pta_write(pta.word);
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    ); 
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    srlz_i();
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    return ;
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    srlz_d();
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}  
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}
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- 
 
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/** Initialize ia64 virtual address translation subsystem. */
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void page_arch_init(void)
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void page_arch_init(void)
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{
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{
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    page_operations = &page_ht_operations;
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    page_operations = &page_ht_operations;
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    pk_disable();
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    pk_disable();
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    set_VHPT_environment();
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    set_vhpt_environment();
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}
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}