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2128 | jermar | 1 | /* |
2465 | jermar | 2 | * Copyright (c) 2007 Michal Kebrt |
2128 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup arm32 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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2465 | jermar | 33 | * @brief ARM32 architecture specific functions. |
2128 | jermar | 34 | */ |
35 | |||
36 | #include <arch.h> |
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2465 | jermar | 37 | #include <config.h> |
38 | #include <arch/console.h> |
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39 | #include <ddi/device.h> |
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40 | #include <genarch/fb/fb.h> |
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41 | #include <genarch/fb/visuals.h> |
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42 | #include <ddi/irq.h> |
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43 | #include <arch/debug/print.h> |
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44 | #include <print.h> |
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45 | #include <config.h> |
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46 | #include <interrupt.h> |
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47 | #include <arch/regutils.h> |
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48 | #include <arch/machine.h> |
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49 | #include <userspace.h> |
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3922 | decky | 50 | #include <macros.h> |
2128 | jermar | 51 | |
2465 | jermar | 52 | /** Performs arm32 specific initialization before main_bsp() is called. */ |
3922 | decky | 53 | void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo) |
2128 | jermar | 54 | { |
2745 | decky | 55 | unsigned int i; |
3922 | decky | 56 | |
57 | init.cnt = bootinfo->cnt; |
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58 | |||
59 | for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) { |
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60 | init.tasks[i].addr = bootinfo->tasks[i].addr; |
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61 | init.tasks[i].size = bootinfo->tasks[i].size; |
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2465 | jermar | 62 | } |
2128 | jermar | 63 | } |
64 | |||
2465 | jermar | 65 | /** Performs arm32 specific initialization before mm is initialized. */ |
2128 | jermar | 66 | void arch_pre_mm_init(void) |
67 | { |
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2465 | jermar | 68 | /* It is not assumed by default */ |
69 | interrupts_disable(); |
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2128 | jermar | 70 | } |
71 | |||
2465 | jermar | 72 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
2128 | jermar | 73 | void arch_post_mm_init(void) |
74 | { |
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2465 | jermar | 75 | machine_hw_map_init(); |
76 | |||
77 | /* Initialize exception dispatch table */ |
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78 | exception_init(); |
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79 | |||
80 | interrupt_init(); |
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81 | |||
82 | console_init(device_assign_devno()); |
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83 | |||
84 | #ifdef CONFIG_FB |
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3672 | jermar | 85 | fb_properties_t prop = { |
86 | .addr = machine_get_fb_address(), |
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87 | .offset = 0, |
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88 | .x = 640, |
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89 | .y = 480, |
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90 | .scan = 1920, |
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3880 | decky | 91 | .visual = VISUAL_BGR_8_8_8, |
3672 | jermar | 92 | }; |
93 | fb_init(&prop); |
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2465 | jermar | 94 | #endif |
2128 | jermar | 95 | } |
96 | |||
2465 | jermar | 97 | /** Performs arm32 specific tasks needed after cpu is initialized. |
98 | * |
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99 | * Currently the function is empty. |
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100 | */ |
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2128 | jermar | 101 | void arch_post_cpu_init(void) |
102 | { |
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103 | } |
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104 | |||
2465 | jermar | 105 | |
106 | /** Performs arm32 specific tasks needed before the multiprocessing is |
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107 | * initialized. |
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108 | * |
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109 | * Currently the function is empty because SMP is not supported. |
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110 | */ |
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2128 | jermar | 111 | void arch_pre_smp_init(void) |
112 | { |
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113 | } |
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114 | |||
2465 | jermar | 115 | |
116 | /** Performs arm32 specific tasks needed after the multiprocessing is |
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117 | * initialized. |
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118 | * |
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119 | * Currently the function is empty because SMP is not supported. |
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120 | */ |
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2128 | jermar | 121 | void arch_post_smp_init(void) |
122 | { |
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123 | } |
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124 | |||
2465 | jermar | 125 | |
126 | /** Performs arm32 specific tasks needed before the new task is run. */ |
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2128 | jermar | 127 | void before_task_runs_arch(void) |
128 | { |
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2465 | jermar | 129 | tlb_invalidate_all(); |
2128 | jermar | 130 | } |
131 | |||
2465 | jermar | 132 | |
133 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
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134 | * |
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135 | * It sets supervisor_sp. |
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136 | */ |
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2128 | jermar | 137 | void before_thread_runs_arch(void) |
138 | { |
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2465 | jermar | 139 | uint8_t *stck; |
140 | |||
141 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
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142 | supervisor_sp = (uintptr_t) stck; |
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2128 | jermar | 143 | } |
144 | |||
2465 | jermar | 145 | /** Performs arm32 specific tasks before a thread stops running. |
146 | * |
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147 | * Currently the function is empty. |
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148 | */ |
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2128 | jermar | 149 | void after_thread_ran_arch(void) |
150 | { |
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151 | } |
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152 | |||
2465 | jermar | 153 | /** Halts CPU. */ |
154 | void cpu_halt(void) |
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2227 | decky | 155 | { |
2465 | jermar | 156 | machine_cpu_halt(); |
2227 | decky | 157 | } |
158 | |||
2465 | jermar | 159 | /** Reboot. */ |
160 | void arch_reboot() |
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161 | { |
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162 | /* not implemented */ |
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3880 | decky | 163 | while (1); |
2465 | jermar | 164 | } |
165 | |||
3880 | decky | 166 | /** Construct function pointer |
167 | * |
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168 | * @param fptr function pointer structure |
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169 | * @param addr function address |
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170 | * @param caller calling function address |
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171 | * |
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172 | * @return address of the function pointer |
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173 | * |
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174 | */ |
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175 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
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176 | { |
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177 | return addr; |
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178 | } |
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179 | |||
2128 | jermar | 180 | /** @} |
181 | */ |