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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 | #ifndef __sparc64_TRAP_TABLE_H__ |
29 | #ifndef __sparc64_TRAP_TABLE_H__ |
30 | #define __sparc64_TRAP_TABLE_H__ |
30 | #define __sparc64_TRAP_TABLE_H__ |
31 | 31 | ||
32 | #ifndef __ASM__ |
32 | #ifndef __ASM__ |
33 | #include <arch/types.h> |
33 | #include <arch/types.h> |
34 | #endif /* __ASM__ */ |
34 | #endif /* __ASM__ */ |
35 | 35 | ||
36 | #include <arch/stack.h> |
36 | #include <arch/stack.h> |
37 | 37 | ||
38 | #define TRAP_TABLE_ENTRY_COUNT 1024 |
38 | #define TRAP_TABLE_ENTRY_COUNT 1024 |
39 | #define TRAP_TABLE_ENTRY_SIZE 32 |
39 | #define TRAP_TABLE_ENTRY_SIZE 32 |
40 | #define TRAP_TABLE_SIZE (TRAP_TABLE_ENTRY_COUNT*TRAP_TABLE_ENTRY_SIZE) |
40 | #define TRAP_TABLE_SIZE (TRAP_TABLE_ENTRY_COUNT*TRAP_TABLE_ENTRY_SIZE) |
41 | 41 | ||
42 | #ifndef __ASM__ |
42 | #ifndef __ASM__ |
43 | struct trap_table_entry { |
43 | struct trap_table_entry { |
44 | __u8 octets[TRAP_TABLE_ENTRY_SIZE]; |
44 | __u8 octets[TRAP_TABLE_ENTRY_SIZE]; |
45 | } __attribute__ ((packed)); |
45 | } __attribute__ ((packed)); |
46 | 46 | ||
47 | typedef struct trap_table_entry trap_table_entry_t; |
47 | typedef struct trap_table_entry trap_table_entry_t; |
48 | 48 | ||
49 | extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT]; |
49 | extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT]; |
50 | extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT]; |
50 | extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT]; |
51 | #endif /* !__ASM__ */ |
51 | #endif /* !__ASM__ */ |
52 | 52 | ||
53 | #ifdef __ASM__ |
53 | #ifdef __ASM__ |
54 | .macro SAVE_GLOBALS |
54 | .macro SAVE_GLOBALS |
55 | mov %g1, %l1 |
55 | mov %g1, %l1 |
56 | mov %g2, %l2 |
56 | mov %g2, %l2 |
57 | mov %g3, %l3 |
57 | mov %g3, %l3 |
58 | mov %g4, %l4 |
58 | mov %g4, %l4 |
59 | mov %g5, %l5 |
59 | mov %g5, %l5 |
60 | mov %g6, %l6 |
60 | mov %g6, %l6 |
61 | mov %g7, %l7 |
61 | mov %g7, %l7 |
62 | .endm |
62 | .endm |
63 | 63 | ||
64 | .macro RESTORE_GLOBALS |
64 | .macro RESTORE_GLOBALS |
65 | mov %l1, %g1 |
65 | mov %l1, %g1 |
66 | mov %l2, %g2 |
66 | mov %l2, %g2 |
67 | mov %l3, %g3 |
67 | mov %l3, %g3 |
68 | mov %l4, %g4 |
68 | mov %l4, %g4 |
69 | mov %l5, %g5 |
69 | mov %l5, %g5 |
70 | mov %l6, %g6 |
70 | mov %l6, %g6 |
71 | mov %l7, %g7 |
71 | mov %l7, %g7 |
72 | .endm |
72 | .endm |
73 | 73 | ||
74 | #define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE (STACK_WINDOW_SAVE_AREA_SIZE+(4*8)) |
74 | #define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE (STACK_WINDOW_SAVE_AREA_SIZE+(4*8)) |
75 | #define SAVED_TSTATE -(1*8) |
75 | #define SAVED_TSTATE -(1*8) |
76 | #define SAVED_TPC -(2*8) |
76 | #define SAVED_TPC -(2*8) |
77 | #define SAVED_TNPC -(3*8) |
77 | #define SAVED_TNPC -(3*8) |
78 | #define SAVED_PSTATE -(4*8) |
78 | #define SAVED_PSTATE -(4*8) |
79 | 79 | ||
80 | .macro PREEMPTIBLE_HANDLER f |
80 | .macro PREEMPTIBLE_HANDLER f |
81 | set \f, %l0 |
81 | set \f, %l0 |
82 | b preemptible_handler |
82 | b preemptible_handler |
83 | nop |
83 | nop |
84 | .endm |
84 | .endm |
85 | 85 | ||
86 | .macro SIMPLE_HANDLER f |
86 | .macro SIMPLE_HANDLER f |
87 | call \f |
87 | call \f |
88 | nop |
88 | nop |
89 | .endm |
89 | .endm |
90 | #endif /* __ASM__ */ |
90 | #endif /* __ASM__ */ |
91 | 91 | ||
92 | #endif |
92 | #endif |
93 | 93 |