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