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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 <arch/types.h> |
|
| 30 | #include <genarch/mm/page_ht.h> |
31 | #include <genarch/mm/page_ht.h> |
| 31 | #include <mm/page.h> |
32 | #include <mm/page.h> |
| 32 | #include <config.h> |
33 | #include <config.h> |
| 33 | #include <panic.h> |
34 | #include <panic.h> |
| 34 | 35 | ||
| - | 36 | __u64 thash(__u64 va); |
|
| - | 37 | __u64 thash(__u64 va) |
|
| - | 38 | { |
|
| - | 39 | __u64 ret; |
|
| - | 40 | asm |
|
| - | 41 | ( |
|
| - | 42 | "thash %0=%1;;" |
|
| - | 43 | :"=r"(ret) |
|
| - | 44 | :"r" (va) |
|
| - | 45 | ); |
|
| - | 46 | ||
| - | 47 | return ret; |
|
| - | 48 | } |
|
| - | 49 | ||
| - | 50 | __u64 ttag(__u64 va); |
|
| - | 51 | __u64 ttag(__u64 va) |
|
| - | 52 | { |
|
| - | 53 | __u64 ret; |
|
| - | 54 | asm |
|
| - | 55 | ( |
|
| - | 56 | "ttag %0=%1;;" |
|
| - | 57 | :"=r"(ret) |
|
| - | 58 | :"r" (va) |
|
| - | 59 | ); |
|
| - | 60 | ||
| - | 61 | return ret; |
|
| - | 62 | } |
|
| - | 63 | ||
| 35 | 64 | ||
| 36 | static void set_VHPT_environment(void) |
65 | static void set_VHPT_environment(void) |
| 37 | { |
66 | { |
| 38 | /* |
67 | /* |
| 39 | TODO: |
68 | TODO: |
| 40 | */ |
69 | */ |
| 41 | 70 | ||
| 42 | int i; |
71 | int i; |
| 43 | 72 | ||
| 44 | /* First set up REGION REGISTER 0 */ |
73 | /* First set up REGION REGISTER 0 */ |
| 45 | 74 | ||
| 46 | region_register rr; |
75 | region_register rr; |
| 47 | rr.map.ve=0; /*Disable Walker*/ |
76 | rr.map.ve=0; /*Disable Walker*/ |
| 48 | rr.map.ps=PAGE_WIDTH; |
77 | rr.map.ps=PAGE_WIDTH; |
| 49 | rr.map.rid=REGION_RID_MAIN; |
78 | rr.map.rid=REGION_RID_MAIN; |
| 50 | 79 | ||
| 51 | asm |
80 | asm |
| 52 | ( |
81 | ( |
| 53 | "mov rr[r0]=%0;;" |
82 | "mov rr[r0]=%0;;" |
| 54 | : |
83 | : |
| 55 | :"r"(rr.word) |
84 | :"r"(rr.word) |
| 56 | ); |
85 | ); |
| 57 | 86 | ||
| 58 | /* And Invalidate the rest of REGION REGISTERS */ |
87 | /* And Invalidate the rest of REGION REGISTERS */ |
| 59 | 88 | ||
| 60 | for(i=1;i<REGION_REGISTERS;i++) |
89 | for(i=1;i<REGION_REGISTERS;i++) |
| 61 | { |
90 | { |
| 62 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
91 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
| 63 | asm |
92 | asm |
| 64 | ( |
93 | ( |
| 65 | "mov r8=%1;;" |
94 | "mov r8=%1;;" |
| 66 | "mov rr[r8]=%0;;" |
95 | "mov rr[r8]=%0;;" |
| 67 | : |
96 | : |
| 68 | :"r"(rr.word),"r"(i) |
97 | :"r"(rr.word),"r"(i) |
| 69 | :"r8" |
98 | :"r8" |
| 70 | ); |
99 | ); |
| 71 | }; |
100 | }; |
| 72 | 101 | ||
| 73 | PTA_register pta; |
102 | PTA_register pta; |
| 74 | pta.map.ve=0; /*Disable Walker*/ |
103 | pta.map.ve=0; /*Disable Walker*/ |
| 75 | pta.map.vf=1; /*Large entry format*/ |
104 | pta.map.vf=1; /*Large entry format*/ |
| 76 | pta.map.size=VHPT_WIDTH; |
105 | pta.map.size=VHPT_WIDTH; |
| 77 | pta.map.base=VHPT_BASE; |
106 | pta.map.base=VHPT_BASE; |
| 78 | 107 | ||
| 79 | 108 | ||
| 80 | /*Write PTA*/ |
109 | /*Write PTA*/ |
| 81 | asm |
110 | asm |
| 82 | ( |
111 | ( |
| 83 | "mov cr8=%0;;" |
112 | "mov cr8=%0;;" |
| 84 | : |
113 | : |
| 85 | :"r"(pta.word) |
114 | :"r"(pta.word) |
| 86 | ); |
115 | ); |
| 87 | 116 | ||
| 88 | } |
117 | } |
| 89 | 118 | ||
| 90 | 119 | ||
| 91 | void page_arch_init(void) |
120 | void page_arch_init(void) |
| 92 | { |
121 | { |
| 93 | page_operations = &page_ht_operations; |
122 | page_operations = &page_ht_operations; |
| 94 | set_VHPT_environment(); |
123 | set_VHPT_environment(); |
| 95 | } |
124 | } |
| 96 | 125 | ||