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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 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 | /** @addtogroup sparc64interrupt |
29 | /** @addtogroup sparc64interrupt |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_sparc64_TRAP_TABLE_H_ |
35 | #ifndef KERN_sparc64_TRAP_TABLE_H_ |
36 | #define KERN_sparc64_TRAP_TABLE_H_ |
36 | #define KERN_sparc64_TRAP_TABLE_H_ |
37 | 37 | ||
38 | #include <arch/stack.h> |
38 | #include <arch/stack.h> |
39 | 39 | ||
40 | #define TRAP_TABLE_ENTRY_COUNT 1024 |
40 | #define TRAP_TABLE_ENTRY_COUNT 1024 |
41 | #define TRAP_TABLE_ENTRY_SIZE 32 |
41 | #define TRAP_TABLE_ENTRY_SIZE 32 |
42 | #define TRAP_TABLE_SIZE (TRAP_TABLE_ENTRY_COUNT * TRAP_TABLE_ENTRY_SIZE) |
42 | #define TRAP_TABLE_SIZE (TRAP_TABLE_ENTRY_COUNT * TRAP_TABLE_ENTRY_SIZE) |
43 | 43 | ||
44 | #ifndef __ASM__ |
44 | #ifndef __ASM__ |
45 | 45 | ||
46 | #include <arch/types.h> |
46 | #include <arch/types.h> |
47 | 47 | ||
48 | struct trap_table_entry { |
48 | struct trap_table_entry { |
49 | uint8_t octets[TRAP_TABLE_ENTRY_SIZE]; |
49 | uint8_t octets[TRAP_TABLE_ENTRY_SIZE]; |
50 | } __attribute__ ((packed)); |
50 | } __attribute__ ((packed)); |
51 | 51 | ||
52 | typedef struct trap_table_entry trap_table_entry_t; |
52 | typedef struct trap_table_entry trap_table_entry_t; |
53 | 53 | ||
54 | extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT]; |
54 | extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT]; |
55 | extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT]; |
55 | extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT]; |
56 | #endif /* !__ASM__ */ |
56 | #endif /* !__ASM__ */ |
57 | 57 | ||
58 | #ifdef __ASM__ |
58 | #ifdef __ASM__ |
59 | .macro SAVE_GLOBALS |
59 | .macro SAVE_GLOBALS |
60 | mov %g1, %l1 |
60 | mov %g1, %l1 |
61 | mov %g2, %l2 |
61 | mov %g2, %l2 |
62 | mov %g3, %l3 |
62 | mov %g3, %l3 |
63 | mov %g4, %l4 |
63 | mov %g4, %l4 |
64 | mov %g5, %l5 |
64 | mov %g5, %l5 |
65 | mov %g6, %l6 |
65 | mov %g6, %l6 |
66 | mov %g7, %l7 |
66 | mov %g7, %l7 |
67 | .endm |
67 | .endm |
68 | 68 | ||
69 | .macro RESTORE_GLOBALS |
69 | .macro RESTORE_GLOBALS |
70 | mov %l1, %g1 |
70 | mov %l1, %g1 |
71 | mov %l2, %g2 |
71 | mov %l2, %g2 |
72 | mov %l3, %g3 |
72 | mov %l3, %g3 |
73 | mov %l4, %g4 |
73 | mov %l4, %g4 |
74 | mov %l5, %g5 |
74 | mov %l5, %g5 |
75 | mov %l6, %g6 |
75 | mov %l6, %g6 |
76 | mov %l7, %g7 |
76 | mov %l7, %g7 |
77 | .endm |
77 | .endm |
78 | 78 | ||
79 | /* |
79 | /* |
80 | * The following needs to be in sync with the definition of the istate |
80 | * The following needs to be in sync with the definition of the istate |
81 | * structure. The one STACK_ITEM_SIZE is counted for space holding the 7th |
81 | * structure. The one STACK_ITEM_SIZE is counted for space holding the 7th |
82 | * argument to syscall_handler (i.e. syscall number) and the other |
82 | * argument to syscall_handler (i.e. syscall number) and the other |
83 | * STACK_ITEM_SIZE is counted because of the required alignment. |
83 | * STACK_ITEM_SIZE is counted because of the required alignment. |
84 | */ |
84 | */ |
85 | #define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE \ |
85 | #define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE \ |
86 | (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE + \ |
86 | (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE + \ |
87 | (2 * STACK_ITEM_SIZE) + (12 * 8)) |
87 | (2 * STACK_ITEM_SIZE) + (12 * 8)) |
88 | #define SAVED_TSTATE -(1 * 8) |
88 | #define SAVED_TSTATE -(1 * 8) |
89 | #define SAVED_TPC -(2 * 8) |
89 | #define SAVED_TPC -(2 * 8) |
90 | #define SAVED_TNPC -(3 * 8) /* <-- istate_t begins here */ |
90 | #define SAVED_TNPC -(3 * 8) /* <-- istate_t begins here */ |
91 | #define SAVED_Y -(4 * 8) |
91 | #define SAVED_Y -(4 * 8) |
92 | #define SAVED_I0 -(5 * 8) |
92 | #define SAVED_I0 -(5 * 8) |
93 | #define SAVED_I1 -(6 * 8) |
93 | #define SAVED_I1 -(6 * 8) |
94 | #define SAVED_I2 -(7 * 8) |
94 | #define SAVED_I2 -(7 * 8) |
95 | #define SAVED_I3 -(8 * 8) |
95 | #define SAVED_I3 -(8 * 8) |
96 | #define SAVED_I4 -(9 * 8) |
96 | #define SAVED_I4 -(9 * 8) |
97 | #define SAVED_I5 -(10 * 8) |
97 | #define SAVED_I5 -(10 * 8) |
98 | #define SAVED_I6 -(11 * 8) |
98 | #define SAVED_I6 -(11 * 8) |
99 | #define SAVED_I7 -(12 * 8) |
99 | #define SAVED_I7 -(12 * 8) |
100 | 100 | ||
101 | .macro PREEMPTIBLE_HANDLER f |
101 | .macro PREEMPTIBLE_HANDLER f |
102 | sethi %hi(\f), %g1 |
102 | sethi %hi(\f), %g1 |
103 | b preemptible_handler |
103 | b preemptible_handler |
104 | or %g1, %lo(\f), %g1 |
104 | or %g1, %lo(\f), %g1 |
105 | .endm |
105 | .endm |
106 | 106 | ||
107 | #endif /* __ASM__ */ |
107 | #endif /* __ASM__ */ |
108 | 108 | ||
109 | #endif |
109 | #endif |
110 | 110 | ||
111 | /** @} |
111 | /** @} |
112 | */ |
112 | */ |
113 | 113 |