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1 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2003-2004 Jakub Jermar |
1 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1731 | jermar | 29 | /** @addtogroup mips32 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
1888 | jermar | 35 | #ifndef KERN_mips32_CP0_H_ |
36 | #define KERN_mips32_CP0_H_ |
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1 | jermar | 37 | |
38 | #include <arch/types.h> |
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39 | |||
2089 | decky | 40 | #define cp0_status_ie_enabled_bit (1 << 0) |
41 | #define cp0_status_exl_exception_bit (1 << 1) |
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42 | #define cp0_status_erl_error_bit (1 << 2) |
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43 | #define cp0_status_um_bit (1 << 4) |
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44 | #define cp0_status_bev_bootstrap_bit (1 << 22) |
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45 | #define cp0_status_fpu_bit (1 << 29) |
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1 | jermar | 46 | |
329 | palkovsky | 47 | #define cp0_status_im_shift 8 |
48 | #define cp0_status_im_mask 0xff00 |
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49 | |||
330 | palkovsky | 50 | #define cp0_cause_excno(cause) ((cause >> 2) & 0x1f) |
51 | #define cp0_cause_coperr(cause) ((cause >> 28) & 0x3) |
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52 | |||
53 | #define fpu_cop_id 1 |
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54 | |||
1 | jermar | 55 | /* |
56 | * Magic value for use in msim. |
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57 | */ |
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1434 | palkovsky | 58 | #define cp0_compare_value 100000 |
1 | jermar | 59 | |
329 | palkovsky | 60 | #define cp0_mask_all_int() cp0_status_write(cp0_status_read() & ~(cp0_status_im_mask)) |
61 | #define cp0_unmask_all_int() cp0_status_write(cp0_status_read() | cp0_status_im_mask) |
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2089 | decky | 62 | #define cp0_mask_int(it) cp0_status_write(cp0_status_read() & ~(1 << (cp0_status_im_shift + (it)))) |
63 | #define cp0_unmask_int(it) cp0_status_write(cp0_status_read() | (1 << (cp0_status_im_shift + (it)))) |
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326 | palkovsky | 64 | |
1780 | jermar | 65 | #define GEN_READ_CP0(nm,reg) static inline uint32_t cp0_ ##nm##_read(void) \ |
1096 | palkovsky | 66 | { \ |
1780 | jermar | 67 | uint32_t retval; \ |
1096 | palkovsky | 68 | asm("mfc0 %0, $" #reg : "=r"(retval)); \ |
69 | return retval; \ |
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70 | } |
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1 | jermar | 71 | |
1780 | jermar | 72 | #define GEN_WRITE_CP0(nm,reg) static inline void cp0_ ##nm##_write(uint32_t val) \ |
1096 | palkovsky | 73 | { \ |
74 | asm("mtc0 %0, $" #reg : : "r"(val) ); \ |
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75 | } |
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1 | jermar | 76 | |
1096 | palkovsky | 77 | GEN_READ_CP0(index, 0); |
78 | GEN_WRITE_CP0(index, 0); |
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1 | jermar | 79 | |
1096 | palkovsky | 80 | GEN_READ_CP0(random, 1); |
1 | jermar | 81 | |
1096 | palkovsky | 82 | GEN_READ_CP0(entry_lo0, 2); |
83 | GEN_WRITE_CP0(entry_lo0, 2); |
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1 | jermar | 84 | |
1096 | palkovsky | 85 | GEN_READ_CP0(entry_lo1, 3); |
86 | GEN_WRITE_CP0(entry_lo1, 3); |
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1 | jermar | 87 | |
1096 | palkovsky | 88 | GEN_READ_CP0(context, 4); |
89 | GEN_WRITE_CP0(context, 4); |
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1 | jermar | 90 | |
1096 | palkovsky | 91 | GEN_READ_CP0(pagemask, 5); |
92 | GEN_WRITE_CP0(pagemask, 5); |
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1 | jermar | 93 | |
1096 | palkovsky | 94 | GEN_READ_CP0(wired, 6); |
95 | GEN_WRITE_CP0(wired, 6); |
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1 | jermar | 96 | |
1096 | palkovsky | 97 | GEN_READ_CP0(badvaddr, 8); |
1 | jermar | 98 | |
1096 | palkovsky | 99 | GEN_READ_CP0(count, 9); |
100 | GEN_WRITE_CP0(count, 9); |
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1 | jermar | 101 | |
1096 | palkovsky | 102 | GEN_READ_CP0(entry_hi, 10); |
103 | GEN_WRITE_CP0(entry_hi, 10); |
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1 | jermar | 104 | |
1096 | palkovsky | 105 | GEN_READ_CP0(compare, 11); |
106 | GEN_WRITE_CP0(compare, 11); |
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1 | jermar | 107 | |
1096 | palkovsky | 108 | GEN_READ_CP0(status, 12); |
109 | GEN_WRITE_CP0(status, 12); |
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1 | jermar | 110 | |
1096 | palkovsky | 111 | GEN_READ_CP0(cause, 13); |
112 | GEN_WRITE_CP0(cause, 13); |
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1 | jermar | 113 | |
1096 | palkovsky | 114 | GEN_READ_CP0(epc, 14); |
115 | GEN_WRITE_CP0(epc, 14); |
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116 | |||
117 | GEN_READ_CP0(prid, 15); |
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118 | |||
1 | jermar | 119 | #endif |
1702 | cejka | 120 | |
1731 | jermar | 121 | /** @} |
1702 | cejka | 122 | */ |