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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 |