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1 | /* |
1 | /* |
2 | * Copyright (c) 2007 Michal Kebrt |
2 | * Copyright (c) 2007 Michal Kebrt |
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 arm32 |
29 | /** @addtogroup arm32 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | * @brief ARM32 architecture specific functions. |
33 | * @brief ARM32 architecture specific functions. |
34 | */ |
34 | */ |
35 | 35 | ||
36 | - | ||
37 | #include <arch.h> |
36 | #include <arch.h> |
38 | #include <arch/boot.h> |
37 | #include <arch/boot.h> |
39 | #include <config.h> |
38 | #include <config.h> |
40 | #include <arch/console.h> |
39 | #include <arch/console.h> |
41 | #include <ddi/device.h> |
40 | #include <ddi/device.h> |
42 | #include <genarch/fb/fb.h> |
41 | #include <genarch/fb/fb.h> |
43 | #include <genarch/fb/visuals.h> |
42 | #include <genarch/fb/visuals.h> |
44 | #include <ddi/irq.h> |
43 | #include <ddi/irq.h> |
45 | #include <arch/debug/print.h> |
44 | #include <arch/debug/print.h> |
46 | #include <print.h> |
45 | #include <print.h> |
47 | #include <config.h> |
46 | #include <config.h> |
48 | #include <interrupt.h> |
47 | #include <interrupt.h> |
49 | #include <arch/regutils.h> |
48 | #include <arch/regutils.h> |
50 | #include <arch/machine.h> |
49 | #include <arch/machine.h> |
51 | #include <userspace.h> |
50 | #include <userspace.h> |
52 | 51 | ||
53 | /** Information about loaded tasks. */ |
52 | /** Information about loaded tasks. */ |
54 | bootinfo_t bootinfo; |
53 | bootinfo_t bootinfo; |
55 | 54 | ||
56 | - | ||
57 | /** Performs arm32 specific initialization before main_bsp() is called. */ |
55 | /** Performs arm32 specific initialization before main_bsp() is called. */ |
58 | void arch_pre_main(void) |
56 | void arch_pre_main(void) |
59 | { |
57 | { |
60 | int i; |
58 | int i; |
61 | 59 | ||
62 | init.cnt = bootinfo.cnt; |
60 | init.cnt = bootinfo.cnt; |
63 | 61 | ||
64 | for (i = 0; i < bootinfo.cnt; ++i) { |
62 | for (i = 0; i < bootinfo.cnt; ++i) { |
65 | init.tasks[i].addr = bootinfo.tasks[i].addr; |
63 | init.tasks[i].addr = bootinfo.tasks[i].addr; |
66 | init.tasks[i].size = bootinfo.tasks[i].size; |
64 | init.tasks[i].size = bootinfo.tasks[i].size; |
67 | } |
65 | } |
68 | 66 | ||
69 | } |
67 | } |
70 | 68 | ||
71 | - | ||
72 | /** Performs arm32 specific initialization before mm is initialized. */ |
69 | /** Performs arm32 specific initialization before mm is initialized. */ |
73 | void arch_pre_mm_init(void) |
70 | void arch_pre_mm_init(void) |
74 | { |
71 | { |
75 | /* It is not assumed by default */ |
72 | /* It is not assumed by default */ |
76 | interrupts_disable(); |
73 | interrupts_disable(); |
77 | } |
74 | } |
78 | 75 | ||
79 | - | ||
80 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
76 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
81 | void arch_post_mm_init(void) |
77 | void arch_post_mm_init(void) |
82 | { |
78 | { |
83 | machine_hw_map_init(); |
79 | machine_hw_map_init(); |
84 | 80 | ||
85 | /* Initialize dispatch table */ |
81 | /* Initialize exception dispatch table */ |
86 | exception_init(); |
82 | exception_init(); |
87 | 83 | ||
88 | interrupt_init(); |
84 | interrupt_init(); |
89 | 85 | ||
90 | console_init(device_assign_devno()); |
86 | console_init(device_assign_devno()); |
91 | 87 | ||
92 | #ifdef CONFIG_FB |
88 | #ifdef CONFIG_FB |
93 | fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8); |
89 | fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8); |
94 | #endif |
90 | #endif |
95 | } |
91 | } |
96 | 92 | ||
97 | - | ||
98 | /** Performs arm32 specific tasks needed after cpu is initialized. |
93 | /** Performs arm32 specific tasks needed after cpu is initialized. |
99 | * |
94 | * |
100 | * Currently the function is empty. |
95 | * Currently the function is empty. |
101 | */ |
96 | */ |
102 | void arch_post_cpu_init(void) |
97 | void arch_post_cpu_init(void) |
103 | { |
98 | { |
104 | } |
99 | } |
105 | 100 | ||
106 | 101 | ||
107 | /** Performs arm32 specific tasks needed before the multiprocessing is |
102 | /** Performs arm32 specific tasks needed before the multiprocessing is |
108 | * initialized. |
103 | * initialized. |
109 | * |
104 | * |
110 | * Currently the function is empty because SMP is not supported. |
105 | * Currently the function is empty because SMP is not supported. |
111 | */ |
106 | */ |
112 | void arch_pre_smp_init(void) |
107 | void arch_pre_smp_init(void) |
113 | { |
108 | { |
114 | } |
109 | } |
115 | 110 | ||
116 | 111 | ||
117 | /** Performs arm32 specific tasks needed after the multiprocessing is |
112 | /** Performs arm32 specific tasks needed after the multiprocessing is |
118 | * initialized. |
113 | * initialized. |
119 | * |
114 | * |
120 | * Currently the function is empty because SMP is not supported. |
115 | * Currently the function is empty because SMP is not supported. |
121 | */ |
116 | */ |
122 | void arch_post_smp_init(void) |
117 | void arch_post_smp_init(void) |
123 | { |
118 | { |
124 | } |
119 | } |
125 | 120 | ||
126 | 121 | ||
127 | /** Performs arm32 specific tasks needed before the new task is run. */ |
122 | /** Performs arm32 specific tasks needed before the new task is run. */ |
128 | void before_task_runs_arch(void) |
123 | void before_task_runs_arch(void) |
129 | { |
124 | { |
130 | tlb_invalidate_all(); |
125 | tlb_invalidate_all(); |
131 | } |
126 | } |
132 | 127 | ||
133 | 128 | ||
134 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
129 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
135 | * |
130 | * |
136 | * It sets supervisor_sp. |
131 | * It sets supervisor_sp. |
137 | */ |
132 | */ |
138 | void before_thread_runs_arch(void) |
133 | void before_thread_runs_arch(void) |
139 | { |
134 | { |
140 | supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
135 | uint8_t *stck; |
141 | } |
- | |
142 | 136 | ||
- | 137 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
|
- | 138 | supervisor_sp = (uintptr_t) stck; |
|
- | 139 | } |
|
143 | 140 | ||
144 | /** Performs arm32 specific tasks before a thread stops running. |
141 | /** Performs arm32 specific tasks before a thread stops running. |
145 | * |
142 | * |
146 | * Currently the function is empty. |
143 | * Currently the function is empty. |
147 | */ |
144 | */ |
148 | void after_thread_ran_arch(void) |
145 | void after_thread_ran_arch(void) |
149 | { |
146 | { |
150 | } |
147 | } |
151 | 148 | ||
152 | - | ||
153 | /** Halts CPU. */ |
149 | /** Halts CPU. */ |
154 | void cpu_halt(void) |
150 | void cpu_halt(void) |
155 | { |
151 | { |
156 | machine_cpu_halt(); |
152 | machine_cpu_halt(); |
157 | } |
153 | } |
158 | 154 | ||
159 | /** @} |
155 | /** @} |
160 | */ |
156 | */ |
161 | - | ||
162 | - | ||
163 | - | ||
164 | - | ||
165 | - | ||
166 | - | ||
167 | - | ||
168 | - | ||
169 | - | ||
170 | - | ||
171 | - | ||
172 | - | ||
173 | - | ||
174 | - | ||
175 | 157 |