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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> |
- | |
38 | #include <config.h> |
37 | #include <config.h> |
39 | #include <arch/console.h> |
38 | #include <arch/console.h> |
40 | #include <ddi/device.h> |
39 | #include <ddi/device.h> |
41 | #include <genarch/fb/fb.h> |
40 | #include <genarch/fb/fb.h> |
42 | #include <genarch/fb/visuals.h> |
41 | #include <genarch/fb/visuals.h> |
43 | #include <ddi/irq.h> |
42 | #include <ddi/irq.h> |
44 | #include <arch/debug/print.h> |
43 | #include <arch/debug/print.h> |
45 | #include <print.h> |
44 | #include <print.h> |
46 | #include <config.h> |
45 | #include <config.h> |
47 | #include <interrupt.h> |
46 | #include <interrupt.h> |
48 | #include <arch/regutils.h> |
47 | #include <arch/regutils.h> |
49 | #include <arch/machine.h> |
48 | #include <arch/machine.h> |
50 | #include <userspace.h> |
49 | #include <userspace.h> |
51 | - | ||
52 | /** Information about loaded tasks. */ |
- | |
53 | bootinfo_t bootinfo; |
50 | #include <macros.h> |
54 | 51 | ||
55 | /** Performs arm32 specific initialization before main_bsp() is called. */ |
52 | /** Performs arm32 specific initialization before main_bsp() is called. */ |
56 | void arch_pre_main(void) |
53 | void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo) |
57 | { |
54 | { |
58 | unsigned int i; |
55 | unsigned int i; |
59 | - | ||
60 | init.cnt = bootinfo.cnt; |
- | |
61 | - | ||
62 | for (i = 0; i < bootinfo.cnt; ++i) { |
- | |
63 | init.tasks[i].addr = bootinfo.tasks[i].addr; |
- | |
64 | init.tasks[i].size = bootinfo.tasks[i].size; |
- | |
65 | } |
- | |
66 | 56 | ||
- | 57 | init.cnt = bootinfo->cnt; |
|
- | 58 | ||
- | 59 | for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) { |
|
- | 60 | init.tasks[i].addr = bootinfo->tasks[i].addr; |
|
- | 61 | init.tasks[i].size = bootinfo->tasks[i].size; |
|
- | 62 | } |
|
67 | } |
63 | } |
68 | 64 | ||
69 | /** Performs arm32 specific initialization before mm is initialized. */ |
65 | /** Performs arm32 specific initialization before mm is initialized. */ |
70 | void arch_pre_mm_init(void) |
66 | void arch_pre_mm_init(void) |
71 | { |
67 | { |
72 | /* It is not assumed by default */ |
68 | /* It is not assumed by default */ |
73 | interrupts_disable(); |
69 | interrupts_disable(); |
74 | } |
70 | } |
75 | 71 | ||
76 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
72 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
77 | void arch_post_mm_init(void) |
73 | void arch_post_mm_init(void) |
78 | { |
74 | { |
79 | machine_hw_map_init(); |
75 | machine_hw_map_init(); |
80 | 76 | ||
81 | /* Initialize exception dispatch table */ |
77 | /* Initialize exception dispatch table */ |
82 | exception_init(); |
78 | exception_init(); |
83 | 79 | ||
84 | interrupt_init(); |
80 | interrupt_init(); |
85 | 81 | ||
86 | console_init(device_assign_devno()); |
82 | console_init(device_assign_devno()); |
87 | 83 | ||
88 | #ifdef CONFIG_FB |
84 | #ifdef CONFIG_FB |
89 | fb_properties_t prop = { |
85 | fb_properties_t prop = { |
90 | .addr = machine_get_fb_address(), |
86 | .addr = machine_get_fb_address(), |
91 | .offset = 0, |
87 | .offset = 0, |
92 | .x = 640, |
88 | .x = 640, |
93 | .y = 480, |
89 | .y = 480, |
94 | .scan = 1920, |
90 | .scan = 1920, |
95 | .visual = VISUAL_BGR_8_8_8, |
91 | .visual = VISUAL_BGR_8_8_8, |
96 | }; |
92 | }; |
97 | fb_init(&prop); |
93 | fb_init(&prop); |
98 | #endif |
94 | #endif |
99 | } |
95 | } |
100 | 96 | ||
101 | /** Performs arm32 specific tasks needed after cpu is initialized. |
97 | /** Performs arm32 specific tasks needed after cpu is initialized. |
102 | * |
98 | * |
103 | * Currently the function is empty. |
99 | * Currently the function is empty. |
104 | */ |
100 | */ |
105 | void arch_post_cpu_init(void) |
101 | void arch_post_cpu_init(void) |
106 | { |
102 | { |
107 | } |
103 | } |
108 | 104 | ||
109 | 105 | ||
110 | /** Performs arm32 specific tasks needed before the multiprocessing is |
106 | /** Performs arm32 specific tasks needed before the multiprocessing is |
111 | * initialized. |
107 | * initialized. |
112 | * |
108 | * |
113 | * Currently the function is empty because SMP is not supported. |
109 | * Currently the function is empty because SMP is not supported. |
114 | */ |
110 | */ |
115 | void arch_pre_smp_init(void) |
111 | void arch_pre_smp_init(void) |
116 | { |
112 | { |
117 | } |
113 | } |
118 | 114 | ||
119 | 115 | ||
120 | /** Performs arm32 specific tasks needed after the multiprocessing is |
116 | /** Performs arm32 specific tasks needed after the multiprocessing is |
121 | * initialized. |
117 | * initialized. |
122 | * |
118 | * |
123 | * Currently the function is empty because SMP is not supported. |
119 | * Currently the function is empty because SMP is not supported. |
124 | */ |
120 | */ |
125 | void arch_post_smp_init(void) |
121 | void arch_post_smp_init(void) |
126 | { |
122 | { |
127 | } |
123 | } |
128 | 124 | ||
129 | 125 | ||
130 | /** Performs arm32 specific tasks needed before the new task is run. */ |
126 | /** Performs arm32 specific tasks needed before the new task is run. */ |
131 | void before_task_runs_arch(void) |
127 | void before_task_runs_arch(void) |
132 | { |
128 | { |
133 | tlb_invalidate_all(); |
129 | tlb_invalidate_all(); |
134 | } |
130 | } |
135 | 131 | ||
136 | 132 | ||
137 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
133 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
138 | * |
134 | * |
139 | * It sets supervisor_sp. |
135 | * It sets supervisor_sp. |
140 | */ |
136 | */ |
141 | void before_thread_runs_arch(void) |
137 | void before_thread_runs_arch(void) |
142 | { |
138 | { |
143 | uint8_t *stck; |
139 | uint8_t *stck; |
144 | 140 | ||
145 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
141 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
146 | supervisor_sp = (uintptr_t) stck; |
142 | supervisor_sp = (uintptr_t) stck; |
147 | } |
143 | } |
148 | 144 | ||
149 | /** Performs arm32 specific tasks before a thread stops running. |
145 | /** Performs arm32 specific tasks before a thread stops running. |
150 | * |
146 | * |
151 | * Currently the function is empty. |
147 | * Currently the function is empty. |
152 | */ |
148 | */ |
153 | void after_thread_ran_arch(void) |
149 | void after_thread_ran_arch(void) |
154 | { |
150 | { |
155 | } |
151 | } |
156 | 152 | ||
157 | /** Halts CPU. */ |
153 | /** Halts CPU. */ |
158 | void cpu_halt(void) |
154 | void cpu_halt(void) |
159 | { |
155 | { |
160 | machine_cpu_halt(); |
156 | machine_cpu_halt(); |
161 | } |
157 | } |
162 | 158 | ||
163 | /** Reboot. */ |
159 | /** Reboot. */ |
164 | void arch_reboot() |
160 | void arch_reboot() |
165 | { |
161 | { |
166 | /* not implemented */ |
162 | /* not implemented */ |
167 | while (1); |
163 | while (1); |
168 | } |
164 | } |
169 | 165 | ||
170 | /** Construct function pointer |
166 | /** Construct function pointer |
171 | * |
167 | * |
172 | * @param fptr function pointer structure |
168 | * @param fptr function pointer structure |
173 | * @param addr function address |
169 | * @param addr function address |
174 | * @param caller calling function address |
170 | * @param caller calling function address |
175 | * |
171 | * |
176 | * @return address of the function pointer |
172 | * @return address of the function pointer |
177 | * |
173 | * |
178 | */ |
174 | */ |
179 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
175 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
180 | { |
176 | { |
181 | return addr; |
177 | return addr; |
182 | } |
178 | } |
183 | 179 | ||
184 | /** @} |
180 | /** @} |
185 | */ |
181 | */ |
186 | 182 |