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3743 | rimsky | 1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
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3 | * All rights reserved. |
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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 sparc64 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
35 | #include <arch.h> |
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36 | #include <debug.h> |
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37 | #include <config.h> |
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38 | #include <arch/trap/trap.h> |
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39 | #include <arch/console.h> |
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40 | #include <proc/thread.h> |
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41 | #include <console/console.h> |
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42 | #include <arch/boot/boot.h> |
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43 | #include <arch/arch.h> |
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44 | #include <arch/asm.h> |
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45 | #include <arch/mm/page.h> |
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46 | #include <arch/stack.h> |
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3783 | rimsky | 47 | #include <arch/sun4v/md.h> |
3743 | rimsky | 48 | #include <genarch/ofw/ofw_tree.h> |
49 | #include <userspace.h> |
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50 | #include <ddi/irq.h> |
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51 | #include <print.h> |
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52 | |||
53 | bootinfo_t bootinfo; |
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54 | |||
55 | /** Perform sparc64 specific initialization before main_bsp() is called. */ |
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56 | void arch_pre_main(void) |
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57 | { |
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58 | /* Copy init task info. */ |
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59 | init.cnt = bootinfo.taskmap.count; |
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3748 | rimsky | 60 | |
3743 | rimsky | 61 | uint32_t i; |
62 | |||
63 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
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64 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
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65 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
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66 | } |
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3783 | rimsky | 67 | md_init(); |
3743 | rimsky | 68 | } |
69 | |||
70 | /** Perform sparc64 specific initialization before mm is initialized. */ |
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71 | void arch_pre_mm_init(void) |
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72 | { |
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73 | if (config.cpu_active == 1) |
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74 | trap_init(); |
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75 | } |
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76 | |||
77 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
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78 | void arch_post_mm_init(void) |
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79 | { |
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80 | if (config.cpu_active == 1) { |
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81 | /* |
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82 | * We have 2^11 different interrupt vectors. |
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83 | * But we only create 128 buckets. |
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84 | */ |
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85 | irq_init(1 << 11, 128); |
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3770 | rimsky | 86 | } |
3743 | rimsky | 87 | |
3817 | rimsky | 88 | standalone_sparc64_console_init(); |
3743 | rimsky | 89 | } |
90 | |||
91 | void arch_post_cpu_init(void) |
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92 | { |
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93 | } |
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94 | |||
95 | void arch_pre_smp_init(void) |
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96 | { |
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97 | } |
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98 | |||
99 | void arch_post_smp_init(void) |
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100 | { |
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101 | static thread_t *t = NULL; |
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102 | |||
103 | |||
104 | if (!t) { |
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105 | /* |
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106 | * Create thread that polls keyboard. |
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107 | */ |
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108 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
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109 | if (!t) |
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110 | panic("cannot create kkbdpoll\n"); |
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111 | thread_ready(t); |
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112 | } |
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113 | } |
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114 | |||
115 | /** Calibrate delay loop. |
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116 | * |
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117 | * On sparc64, we implement delay() by waiting for the TICK register to |
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118 | * reach a pre-computed value, as opposed to performing some pre-computed |
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119 | * amount of instructions of known duration. We set the delay_loop_const |
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120 | * to 1 in order to neutralize the multiplication done by delay(). |
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121 | */ |
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122 | void calibrate_delay_loop(void) |
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123 | { |
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124 | CPU->delay_loop_const = 1; |
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125 | } |
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126 | |||
127 | /** Wait several microseconds. |
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128 | * |
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129 | * We assume that interrupts are already disabled. |
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130 | * |
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131 | * @param t Microseconds to wait. |
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132 | */ |
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133 | void asm_delay_loop(const uint32_t usec) |
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134 | { |
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135 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
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136 | CPU->arch.clock_frequency / 1000000; |
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137 | |||
138 | while (tick_read() < stop) |
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139 | ; |
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140 | } |
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141 | |||
142 | /** Switch to userspace. */ |
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143 | void userspace(uspace_arg_t *kernel_uarg) |
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144 | { |
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145 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
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146 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
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147 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
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148 | (uintptr_t) kernel_uarg->uspace_uarg); |
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149 | |||
150 | for (;;) |
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151 | ; |
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152 | /* not reached */ |
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153 | } |
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154 | |||
155 | void arch_reboot(void) |
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156 | { |
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157 | // TODO |
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158 | while (1); |
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159 | } |
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160 | |||
161 | /** @} |
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162 | */ |