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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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| 746 | jermar | 36 | #include <arch/asm.h> |
| 684 | jermar | 37 | |
| 716 | vana | 38 | __u64 thash(__u64 va); |
| 39 | __u64 thash(__u64 va) |
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| 40 | { |
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| 41 | __u64 ret; |
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| 42 | asm |
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| 43 | ( |
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| 44 | "thash %0=%1;;" |
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| 45 | :"=r"(ret) |
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| 46 | :"r" (va) |
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| 47 | ); |
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| 48 | |||
| 49 | return ret; |
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| 50 | } |
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| 715 | vana | 51 | |
| 716 | vana | 52 | __u64 ttag(__u64 va); |
| 53 | __u64 ttag(__u64 va) |
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| 54 | { |
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| 55 | __u64 ret; |
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| 56 | asm |
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| 57 | ( |
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| 58 | "ttag %0=%1;;" |
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| 59 | :"=r"(ret) |
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| 60 | :"r" (va) |
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| 61 | ); |
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| 62 | |||
| 63 | return ret; |
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| 64 | } |
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| 65 | |||
| 66 | |||
| 715 | vana | 67 | static void set_VHPT_environment(void) |
| 68 | { |
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| 728 | vana | 69 | |
| 726 | jermar | 70 | |
| 715 | vana | 71 | /* |
| 72 | TODO: |
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| 73 | */ |
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| 74 | |||
| 75 | int i; |
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| 76 | |||
| 77 | /* First set up REGION REGISTER 0 */ |
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| 78 | |||
| 79 | region_register rr; |
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| 80 | rr.map.ve=0; /*Disable Walker*/ |
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| 81 | rr.map.ps=PAGE_WIDTH; |
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| 82 | rr.map.rid=REGION_RID_MAIN; |
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| 83 | |||
| 84 | asm |
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| 85 | ( |
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| 728 | vana | 86 | ";;\n" |
| 87 | "srlz.i;;\n" |
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| 88 | "srlz.d;;\n" |
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| 89 | "{mov rr[r0]=%0};;\n" |
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| 90 | "srlz.i;;\n" |
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| 91 | "srlz.d;;\n" |
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| 92 | ";;\n" |
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| 715 | vana | 93 | : |
| 94 | :"r"(rr.word) |
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| 95 | ); |
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| 728 | vana | 96 | |
| 97 | |||
| 715 | vana | 98 | /* And Invalidate the rest of REGION REGISTERS */ |
| 99 | for(i=1;i<REGION_REGISTERS;i++) |
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| 100 | { |
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| 101 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
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| 102 | asm |
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| 103 | ( |
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| 728 | vana | 104 | ";;\n" |
| 105 | /* "mov r8=%1;;\n"*/ |
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| 106 | /* "mov rr[r8]=%0;;\n"*/ |
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| 107 | "srlz.i;;\n" |
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| 108 | "srlz.d;;\n" |
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| 109 | "{mov rr[%1]=%0};;\n" |
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| 110 | "srlz.i;;\n" |
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| 111 | "srlz.d;;\n" |
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| 715 | vana | 112 | : |
| 113 | :"r"(rr.word),"r"(i) |
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| 114 | :"r8" |
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| 115 | ); |
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| 116 | }; |
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| 117 | |||
| 728 | vana | 118 | |
| 119 | |||
| 715 | vana | 120 | PTA_register pta; |
| 121 | pta.map.ve=0; /*Disable Walker*/ |
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| 122 | pta.map.vf=1; /*Large entry format*/ |
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| 123 | pta.map.size=VHPT_WIDTH; |
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| 124 | pta.map.base=VHPT_BASE; |
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| 125 | |||
| 728 | vana | 126 | return ; |
| 715 | vana | 127 | |
| 728 | vana | 128 | printf("pta struct size:%d\n",sizeof(pta)); |
| 129 | |||
| 715 | vana | 130 | /*Write PTA*/ |
| 131 | asm |
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| 132 | ( |
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| 133 | "mov cr8=%0;;" |
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| 134 | : |
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| 135 | :"r"(pta.word) |
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| 136 | ); |
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| 728 | vana | 137 | return ; |
| 715 | vana | 138 | } |
| 139 | |||
| 140 | |||
| 684 | jermar | 141 | void page_arch_init(void) |
| 142 | { |
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| 143 | page_operations = &page_ht_operations; |
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| 746 | jermar | 144 | pk_disable(); |
| 715 | vana | 145 | set_VHPT_environment(); |
| 684 | jermar | 146 | } |