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