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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 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 __ARCH_H__ |
29 | #ifndef __ARCH_H__ |
30 | #define __ARCH_H__ |
30 | #define __ARCH_H__ |
31 | 31 | ||
32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
33 | #include <typedefs.h> |
33 | #include <typedefs.h> |
34 | 34 | ||
35 | #include <cpu.h> |
35 | #include <cpu.h> |
36 | #include <arch/cpu.h> |
36 | #include <arch/cpu.h> |
37 | #include <arch/asm.h> |
37 | #include <arch/asm.h> |
38 | 38 | ||
39 | #include <proc/thread.h> |
39 | #include <proc/thread.h> |
40 | #include <proc/task.h> |
40 | #include <proc/task.h> |
41 | 41 | ||
42 | #define CPU THE->cpu |
42 | #define CPU THE->cpu |
43 | #define THREAD THE->thread |
43 | #define THREAD THE->thread |
44 | #define TASK THE->task |
44 | #define TASK THE->task |
- | 45 | #define PREEMPTION_DISABLED THE->preemption_disabled |
|
45 | 46 | ||
46 | #ifndef early_mapping |
47 | #ifndef early_mapping |
47 | #define early_mapping(stack, size) |
48 | #define early_mapping(stack, size) |
48 | #endif /* early_mapping */ |
49 | #endif /* early_mapping */ |
49 | 50 | ||
50 | /* |
51 | /* |
51 | * For each possible kernel stack, structure |
52 | * For each possible kernel stack, structure |
52 | * of the following type will be placed at |
53 | * of the following type will be placed at |
53 | * the bottom of the stack. |
54 | * the bottom of the stack. |
54 | */ |
55 | */ |
55 | struct the { |
56 | struct the { |
56 | int preemption_disabled; |
57 | int preemption_disabled; |
57 | thread_t *thread; /* current thread */ |
58 | thread_t *thread; /* current thread */ |
58 | task_t *task; /* current task */ |
59 | task_t *task; /* current task */ |
59 | cpu_t *cpu; /* executing cpu */ |
60 | cpu_t *cpu; /* executing cpu */ |
60 | }; |
61 | }; |
61 | 62 | ||
62 | #define THE ((the_t *)(get_stack_base())) |
63 | #define THE ((the_t *)(get_stack_base())) |
63 | 64 | ||
64 | extern void the_initialize(the_t *the); |
65 | extern void the_initialize(the_t *the); |
65 | extern void the_copy(the_t *src, the_t *dst); |
66 | extern void the_copy(the_t *src, the_t *dst); |
66 | 67 | ||
67 | extern void arch_pre_mm_init(void); |
68 | extern void arch_pre_mm_init(void); |
68 | extern void arch_post_mm_init(void); |
69 | extern void arch_post_mm_init(void); |
69 | extern void arch_late_init(void); |
70 | extern void arch_late_init(void); |
70 | extern void calibrate_delay_loop(void); |
71 | extern void calibrate_delay_loop(void); |
71 | 72 | ||
72 | extern pri_t cpu_priority_high(void); |
73 | extern pri_t cpu_priority_high(void); |
73 | extern pri_t cpu_priority_low(void); |
74 | extern pri_t cpu_priority_low(void); |
74 | extern void cpu_priority_restore(pri_t pri); |
75 | extern void cpu_priority_restore(pri_t pri); |
75 | extern pri_t cpu_priority_read(void); |
76 | extern pri_t cpu_priority_read(void); |
76 | 77 | ||
77 | #endif |
78 | #endif |
78 | 79 |