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| Rev | Author | Line No. | Line |
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| 684 | jermar | 1 | /* |
| 2 | * Copyright (C) 2006 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include <arch/mm/page.h> |
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| 716 | vana | 30 | #include <arch/types.h> |
| 684 | jermar | 31 | #include <genarch/mm/page_ht.h> |
| 728 | vana | 32 | #include <print.h> |
| 684 | jermar | 33 | #include <mm/page.h> |
| 34 | #include <config.h> |
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| 35 | #include <panic.h> |
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| 36 | |||
| 716 | vana | 37 | __u64 thash(__u64 va); |
| 38 | __u64 thash(__u64 va) |
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| 39 | { |
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| 40 | __u64 ret; |
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| 41 | asm |
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| 42 | ( |
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| 43 | "thash %0=%1;;" |
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| 44 | :"=r"(ret) |
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| 45 | :"r" (va) |
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| 46 | ); |
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| 47 | |||
| 48 | return ret; |
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| 49 | } |
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| 715 | vana | 50 | |
| 716 | vana | 51 | __u64 ttag(__u64 va); |
| 52 | __u64 ttag(__u64 va) |
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| 53 | { |
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| 54 | __u64 ret; |
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| 55 | asm |
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| 56 | ( |
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| 57 | "ttag %0=%1;;" |
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| 58 | :"=r"(ret) |
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| 59 | :"r" (va) |
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| 60 | ); |
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| 61 | |||
| 62 | return ret; |
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| 63 | } |
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| 64 | |||
| 65 | |||
| 715 | vana | 66 | static void set_VHPT_environment(void) |
| 67 | { |
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| 728 | vana | 68 | |
| 726 | jermar | 69 | |
| 715 | vana | 70 | /* |
| 71 | TODO: |
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| 72 | */ |
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| 73 | |||
| 74 | int i; |
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| 75 | |||
| 76 | /* First set up REGION REGISTER 0 */ |
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| 77 | |||
| 78 | region_register rr; |
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| 79 | rr.map.ve=0; /*Disable Walker*/ |
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| 80 | rr.map.ps=PAGE_WIDTH; |
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| 81 | rr.map.rid=REGION_RID_MAIN; |
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| 82 | |||
| 83 | asm |
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| 84 | ( |
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| 728 | vana | 85 | ";;\n" |
| 86 | "srlz.i;;\n" |
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| 87 | "srlz.d;;\n" |
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| 88 | "{mov rr[r0]=%0};;\n" |
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| 89 | "srlz.i;;\n" |
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| 90 | "srlz.d;;\n" |
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| 91 | ";;\n" |
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| 715 | vana | 92 | : |
| 93 | :"r"(rr.word) |
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| 94 | ); |
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| 728 | vana | 95 | |
| 96 | |||
| 715 | vana | 97 | /* And Invalidate the rest of REGION REGISTERS */ |
| 98 | for(i=1;i<REGION_REGISTERS;i++) |
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| 99 | { |
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| 100 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
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| 101 | asm |
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| 102 | ( |
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| 728 | vana | 103 | ";;\n" |
| 104 | /* "mov r8=%1;;\n"*/ |
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| 105 | /* "mov rr[r8]=%0;;\n"*/ |
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| 106 | "srlz.i;;\n" |
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| 107 | "srlz.d;;\n" |
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| 108 | "{mov rr[%1]=%0};;\n" |
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| 109 | "srlz.i;;\n" |
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| 110 | "srlz.d;;\n" |
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| 715 | vana | 111 | : |
| 112 | :"r"(rr.word),"r"(i) |
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| 113 | :"r8" |
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| 114 | ); |
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| 115 | }; |
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| 116 | |||
| 728 | vana | 117 | |
| 118 | |||
| 715 | vana | 119 | PTA_register pta; |
| 120 | pta.map.ve=0; /*Disable Walker*/ |
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| 121 | pta.map.vf=1; /*Large entry format*/ |
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| 122 | pta.map.size=VHPT_WIDTH; |
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| 123 | pta.map.base=VHPT_BASE; |
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| 124 | |||
| 728 | vana | 125 | return ; |
| 715 | vana | 126 | |
| 728 | vana | 127 | printf("pta struct size:%d\n",sizeof(pta)); |
| 128 | |||
| 715 | vana | 129 | /*Write PTA*/ |
| 130 | asm |
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| 131 | ( |
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| 132 | "mov cr8=%0;;" |
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| 133 | : |
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| 134 | :"r"(pta.word) |
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| 135 | ); |
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| 728 | vana | 136 | return ; |
| 715 | vana | 137 | } |
| 138 | |||
| 139 | |||
| 684 | jermar | 140 | void page_arch_init(void) |
| 141 | { |
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| 142 | page_operations = &page_ht_operations; |
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| 715 | vana | 143 | set_VHPT_environment(); |
| 684 | jermar | 144 | } |