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1 | /* |
1 | /* |
2 | * Copyright (C) 2003-2004 Jakub Jermar |
2 | * Copyright (C) 2003-2004 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 | #ifndef __CP0_H__ |
29 | #ifndef __CP0_H__ |
30 | #define __CP0_H__ |
30 | #define __CP0_H__ |
31 | 31 | ||
32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
33 | 33 | ||
34 | #define cp0_status_ie_enabled_bit (1<<0) |
34 | #define cp0_status_ie_enabled_bit (1<<0) |
35 | #define cp0_status_exl_exception_bit (1<<1) |
35 | #define cp0_status_exl_exception_bit (1<<1) |
36 | #define cp0_status_erl_error_bit (1<<2) |
36 | #define cp0_status_erl_error_bit (1<<2) |
37 | #define cp0_status_um_bit (1<<4) |
37 | #define cp0_status_um_bit (1<<4) |
38 | #define cp0_status_bev_bootstrap_bit (1<<22) |
38 | #define cp0_status_bev_bootstrap_bit (1<<22) |
39 | #define cp0_status_fpu_bit (1<<29) |
39 | #define cp0_status_fpu_bit (1<<29) |
40 | 40 | ||
41 | #define cp0_status_im7_shift 15 |
41 | #define cp0_status_im_shift 8 |
- | 42 | #define cp0_status_im_mask 0xff00 |
|
- | 43 | ||
42 | /* |
44 | /* |
43 | * Magic value for use in msim. |
45 | * Magic value for use in msim. |
44 | * On AMD Duron 800Mhz, this roughly seems like one us. |
46 | * On AMD Duron 800Mhz, this roughly seems like one us. |
45 | */ |
47 | */ |
46 | #define cp0_compare_value 10000 |
48 | #define cp0_compare_value 10000 |
47 | 49 | ||
48 | static inline void tlbp(void) |
50 | static inline void tlbp(void) |
49 | { |
51 | { |
50 | __asm__ volatile ("tlbp"); |
52 | __asm__ volatile ("tlbp"); |
51 | } |
53 | } |
52 | 54 | ||
53 | static inline void tlbr(void) |
55 | static inline void tlbr(void) |
54 | { |
56 | { |
55 | __asm__ volatile ("tlbr"); |
57 | __asm__ volatile ("tlbr"); |
56 | } |
58 | } |
57 | static inline void tlbwi(void) |
59 | static inline void tlbwi(void) |
58 | { |
60 | { |
59 | __asm__ volatile ("tlbwi"); |
61 | __asm__ volatile ("tlbwi"); |
60 | } |
62 | } |
61 | static inline void tlbwr(void) |
63 | static inline void tlbwr(void) |
62 | { |
64 | { |
63 | __asm__ volatile ("tlbwr"); |
65 | __asm__ volatile ("tlbwr"); |
64 | } |
66 | } |
65 | 67 | ||
- | 68 | #define cp0_mask_all_int() cp0_status_write(cp0_status_read() & ~(cp0_status_im_mask)) |
|
- | 69 | #define cp0_unmask_all_int() cp0_status_write(cp0_status_read() | cp0_status_im_mask) |
|
- | 70 | #define cp0_mask_int(it) cp0_status_write(cp0_status_read() & ~(1<<(cp0_status_im_shift+(it)))) |
|
- | 71 | #define cp0_unmask_int(it) cp0_status_write(cp0_status_read() | (1<<(cp0_status_im_shift+(it)))) |
|
66 | 72 | ||
67 | 73 | ||
68 | extern __u32 cp0_index_read(void); |
74 | extern __u32 cp0_index_read(void); |
69 | extern void cp0_idnex_write(__u32 val); |
75 | extern void cp0_idnex_write(__u32 val); |
70 | 76 | ||
71 | extern __u32 cp0_random_read(void); |
77 | extern __u32 cp0_random_read(void); |
72 | 78 | ||
73 | extern __u32 cp0_entry_lo0_read(void); |
79 | extern __u32 cp0_entry_lo0_read(void); |
74 | extern void cp0_entry_lo0_write(__u32 val); |
80 | extern void cp0_entry_lo0_write(__u32 val); |
75 | 81 | ||
76 | extern __u32 cp0_entry_lo1_read(void); |
82 | extern __u32 cp0_entry_lo1_read(void); |
77 | extern void cp0_entry_lo1_write(__u32 val); |
83 | extern void cp0_entry_lo1_write(__u32 val); |
78 | 84 | ||
79 | extern __u32 cp0_context_read(void); |
85 | extern __u32 cp0_context_read(void); |
80 | extern void cp0_context_write(__u32 val); |
86 | extern void cp0_context_write(__u32 val); |
81 | 87 | ||
82 | extern __u32 cp0_pagemask_read(void); |
88 | extern __u32 cp0_pagemask_read(void); |
83 | extern void cp0_pagemask_write(__u32 val); |
89 | extern void cp0_pagemask_write(__u32 val); |
84 | 90 | ||
85 | extern __u32 cp0_wired_read(void); |
91 | extern __u32 cp0_wired_read(void); |
86 | extern void cp0_wired_write(__u32 val); |
92 | extern void cp0_wired_write(__u32 val); |
87 | 93 | ||
88 | extern __u32 cp0_badvaddr_read(void); |
94 | extern __u32 cp0_badvaddr_read(void); |
89 | 95 | ||
90 | extern volatile __u32 cp0_count_read(void); |
96 | extern volatile __u32 cp0_count_read(void); |
91 | extern void cp0_count_write(__u32 val); |
97 | extern void cp0_count_write(__u32 val); |
92 | 98 | ||
93 | extern volatile __u32 cp0_entry_hi_read(void); |
99 | extern volatile __u32 cp0_entry_hi_read(void); |
94 | extern void cp0_entry_hi_write(__u32 val); |
100 | extern void cp0_entry_hi_write(__u32 val); |
95 | 101 | ||
96 | extern volatile __u32 cp0_compare_read(void); |
102 | extern volatile __u32 cp0_compare_read(void); |
97 | extern void cp0_compare_write(__u32 val); |
103 | extern void cp0_compare_write(__u32 val); |
98 | 104 | ||
99 | extern __u32 cp0_status_read(void); |
105 | extern __u32 cp0_status_read(void); |
100 | extern void cp0_status_write(__u32 val); |
106 | extern void cp0_status_write(__u32 val); |
101 | 107 | ||
102 | extern __u32 cp0_cause_read(void); |
108 | extern __u32 cp0_cause_read(void); |
103 | extern void cp0_cause_write(__u32 val); |
109 | extern void cp0_cause_write(__u32 val); |
104 | 110 | ||
105 | extern __u32 cp0_epc_read(void); |
111 | extern __u32 cp0_epc_read(void); |
106 | extern void cp0_epc_write(__u32 val); |
112 | extern void cp0_epc_write(__u32 val); |
107 | 113 | ||
108 | extern __u32 cp0_prid_read(void); |
114 | extern __u32 cp0_prid_read(void); |
109 | 115 | ||
110 | #endif |
116 | #endif |
111 | 117 |