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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 <arch/types.h> |
31 | #include <genarch/mm/page_ht.h> |
31 | #include <genarch/mm/page_ht.h> |
32 | #include <mm/page.h> |
32 | #include <mm/page.h> |
33 | #include <config.h> |
33 | #include <config.h> |
34 | #include <panic.h> |
34 | #include <panic.h> |
35 | 35 | ||
36 | __u64 thash(__u64 va); |
36 | __u64 thash(__u64 va); |
37 | __u64 thash(__u64 va) |
37 | __u64 thash(__u64 va) |
38 | { |
38 | { |
39 | __u64 ret; |
39 | __u64 ret; |
40 | asm |
40 | asm |
41 | ( |
41 | ( |
42 | "thash %0=%1;;" |
42 | "thash %0=%1;;" |
43 | :"=r"(ret) |
43 | :"=r"(ret) |
44 | :"r" (va) |
44 | :"r" (va) |
45 | ); |
45 | ); |
46 | 46 | ||
47 | return ret; |
47 | return ret; |
48 | } |
48 | } |
49 | 49 | ||
50 | __u64 ttag(__u64 va); |
50 | __u64 ttag(__u64 va); |
51 | __u64 ttag(__u64 va) |
51 | __u64 ttag(__u64 va) |
52 | { |
52 | { |
53 | __u64 ret; |
53 | __u64 ret; |
54 | asm |
54 | asm |
55 | ( |
55 | ( |
56 | "ttag %0=%1;;" |
56 | "ttag %0=%1;;" |
57 | :"=r"(ret) |
57 | :"=r"(ret) |
58 | :"r" (va) |
58 | :"r" (va) |
59 | ); |
59 | ); |
60 | 60 | ||
61 | return ret; |
61 | return ret; |
62 | } |
62 | } |
63 | 63 | ||
64 | 64 | ||
65 | static void set_VHPT_environment(void) |
65 | static void set_VHPT_environment(void) |
66 | { |
66 | { |
- | 67 | return; |
|
- | 68 | ||
67 | /* |
69 | /* |
68 | TODO: |
70 | TODO: |
69 | */ |
71 | */ |
70 | 72 | ||
71 | int i; |
73 | int i; |
72 | 74 | ||
73 | /* First set up REGION REGISTER 0 */ |
75 | /* First set up REGION REGISTER 0 */ |
74 | 76 | ||
75 | region_register rr; |
77 | region_register rr; |
76 | rr.map.ve=0; /*Disable Walker*/ |
78 | rr.map.ve=0; /*Disable Walker*/ |
77 | rr.map.ps=PAGE_WIDTH; |
79 | rr.map.ps=PAGE_WIDTH; |
78 | rr.map.rid=REGION_RID_MAIN; |
80 | rr.map.rid=REGION_RID_MAIN; |
79 | 81 | ||
80 | asm |
82 | asm |
81 | ( |
83 | ( |
82 | "mov rr[r0]=%0;;" |
84 | "mov rr[r0]=%0;;" |
83 | : |
85 | : |
84 | :"r"(rr.word) |
86 | :"r"(rr.word) |
85 | ); |
87 | ); |
86 | 88 | ||
87 | /* And Invalidate the rest of REGION REGISTERS */ |
89 | /* And Invalidate the rest of REGION REGISTERS */ |
88 | 90 | ||
89 | for(i=1;i<REGION_REGISTERS;i++) |
91 | for(i=1;i<REGION_REGISTERS;i++) |
90 | { |
92 | { |
91 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
93 | rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
92 | asm |
94 | asm |
93 | ( |
95 | ( |
94 | "mov r8=%1;;" |
96 | "mov r8=%1;;" |
95 | "mov rr[r8]=%0;;" |
97 | "mov rr[r8]=%0;;" |
96 | : |
98 | : |
97 | :"r"(rr.word),"r"(i) |
99 | :"r"(rr.word),"r"(i) |
98 | :"r8" |
100 | :"r8" |
99 | ); |
101 | ); |
100 | }; |
102 | }; |
101 | 103 | ||
102 | PTA_register pta; |
104 | PTA_register pta; |
103 | pta.map.ve=0; /*Disable Walker*/ |
105 | pta.map.ve=0; /*Disable Walker*/ |
104 | pta.map.vf=1; /*Large entry format*/ |
106 | pta.map.vf=1; /*Large entry format*/ |
105 | pta.map.size=VHPT_WIDTH; |
107 | pta.map.size=VHPT_WIDTH; |
106 | pta.map.base=VHPT_BASE; |
108 | pta.map.base=VHPT_BASE; |
107 | 109 | ||
108 | 110 | ||
109 | /*Write PTA*/ |
111 | /*Write PTA*/ |
110 | asm |
112 | asm |
111 | ( |
113 | ( |
112 | "mov cr8=%0;;" |
114 | "mov cr8=%0;;" |
113 | : |
115 | : |
114 | :"r"(pta.word) |
116 | :"r"(pta.word) |
115 | ); |
117 | ); |
116 | 118 | ||
117 | } |
119 | } |
118 | 120 | ||
119 | 121 | ||
120 | void page_arch_init(void) |
122 | void page_arch_init(void) |
121 | { |
123 | { |
122 | page_operations = &page_ht_operations; |
124 | page_operations = &page_ht_operations; |
123 | set_VHPT_environment(); |
125 | set_VHPT_environment(); |
124 | } |
126 | } |
125 | 127 |