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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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30 | #include <genarch/mm/page_ht.h> |
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31 | #include <mm/page.h> |
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32 | #include <config.h> |
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33 | #include <panic.h> |
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34 | |||
715 | vana | 35 | |
36 | static void set_VHPT_environment(void) |
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37 | { |
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38 | /* |
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39 | TODO: |
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40 | */ |
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41 | |||
42 | int i; |
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43 | |||
44 | /* First set up REGION REGISTER 0 */ |
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45 | |||
46 | region_register rr; |
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47 | rr.map.ve=0; /*Disable Walker*/ |
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48 | rr.map.ps=PAGE_WIDTH; |
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49 | rr.map.rid=REGION_RID_MAIN; |
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50 | |||
51 | asm |
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52 | ( |
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53 | "mov rr[r0]=%0;;" |
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54 | : |
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55 | :"r"(rr.word) |
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56 | ); |
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57 | |||
58 | /* And Invalidate the rest of REGION REGISTERS */ |
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59 | |||
60 | for(i=1;i<REGION_REGISTERS;i++) |
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61 | { |
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62 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
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63 | asm |
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64 | ( |
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65 | "mov r8=%1;;" |
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66 | "mov rr[r8]=%0;;" |
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67 | : |
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68 | :"r"(rr.word),"r"(i) |
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69 | :"r8" |
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70 | ); |
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71 | }; |
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72 | |||
73 | PTA_register pta; |
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74 | pta.map.ve=0; /*Disable Walker*/ |
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75 | pta.map.vf=1; /*Large entry format*/ |
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76 | pta.map.size=VHPT_WIDTH; |
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77 | pta.map.base=VHPT_BASE; |
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78 | |||
79 | |||
80 | /*Write PTA*/ |
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81 | asm |
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82 | ( |
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83 | "mov cr8=%0;;" |
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84 | : |
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85 | :"r"(pta.word) |
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86 | ); |
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87 | |||
88 | } |
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89 | |||
90 | |||
684 | jermar | 91 | void page_arch_init(void) |
92 | { |
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93 | page_operations = &page_ht_operations; |
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715 | vana | 94 | set_VHPT_environment(); |
684 | jermar | 95 | } |