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424 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
424 | 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 | |||
1769 | jermar | 29 | /** @addtogroup sparc64 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
424 | jermar | 35 | #include <arch.h> |
669 | jermar | 36 | #include <debug.h> |
1860 | jermar | 37 | #include <config.h> |
630 | jermar | 38 | #include <arch/trap/trap.h> |
586 | jermar | 39 | #include <arch/console.h> |
669 | jermar | 40 | #include <proc/thread.h> |
3502 | rimsky | 41 | #include <arch/drivers/sgcn.h> |
3467 | rimsky | 42 | #include <arch/drivers/simics_output.h> |
1474 | palkovsky | 43 | #include <console/console.h> |
1790 | jermar | 44 | #include <arch/boot/boot.h> |
1792 | jermar | 45 | #include <arch/arch.h> |
1881 | jermar | 46 | #include <arch/asm.h> |
1860 | jermar | 47 | #include <arch/mm/page.h> |
48 | #include <arch/stack.h> |
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1895 | jermar | 49 | #include <genarch/ofw/ofw_tree.h> |
1860 | jermar | 50 | #include <userspace.h> |
1920 | jermar | 51 | #include <ddi/irq.h> |
424 | jermar | 52 | |
1790 | jermar | 53 | bootinfo_t bootinfo; |
54 | |||
2048 | jermar | 55 | /** Perform sparc64 specific initialization before main_bsp() is called. */ |
1864 | jermar | 56 | void arch_pre_main(void) |
57 | { |
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1894 | jermar | 58 | /* Copy init task info. */ |
1864 | jermar | 59 | init.cnt = bootinfo.taskmap.count; |
60 | |||
61 | uint32_t i; |
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62 | |||
63 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
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1982 | jermar | 64 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
1864 | jermar | 65 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
66 | } |
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1894 | jermar | 67 | |
68 | /* Copy boot allocations info. */ |
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69 | ballocs.base = bootinfo.ballocs.base; |
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70 | ballocs.size = bootinfo.ballocs.size; |
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1895 | jermar | 71 | |
72 | ofw_tree_init(bootinfo.ofw_root); |
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1864 | jermar | 73 | } |
74 | |||
2048 | jermar | 75 | /** Perform sparc64 specific initialization before mm is initialized. */ |
424 | jermar | 76 | void arch_pre_mm_init(void) |
77 | { |
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1903 | jermar | 78 | if (config.cpu_active == 1) |
79 | trap_init(); |
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424 | jermar | 80 | } |
81 | |||
2048 | jermar | 82 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
424 | jermar | 83 | void arch_post_mm_init(void) |
84 | { |
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1919 | jermar | 85 | if (config.cpu_active == 1) { |
2048 | jermar | 86 | /* |
87 | * We have 2^11 different interrupt vectors. |
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88 | * But we only create 128 buckets. |
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89 | */ |
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90 | irq_init(1 << 11, 128); |
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3493 | rimsky | 91 | |
92 | #if defined (CONFIG_SIMICS_OUTPUT) |
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3502 | rimsky | 93 | sgcn_init(); |
3493 | rimsky | 94 | #else |
95 | standalone_sparc64_console_init(); |
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96 | #endif |
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1919 | jermar | 97 | } |
424 | jermar | 98 | } |
99 | |||
1901 | jermar | 100 | void arch_post_cpu_init(void) |
101 | { |
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102 | } |
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103 | |||
503 | jermar | 104 | void arch_pre_smp_init(void) |
424 | jermar | 105 | { |
106 | } |
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107 | |||
503 | jermar | 108 | void arch_post_smp_init(void) |
109 | { |
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2091 | jermar | 110 | static thread_t *t = NULL; |
893 | jermar | 111 | |
2091 | jermar | 112 | |
113 | if (!t) { |
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1903 | jermar | 114 | /* |
115 | * Create thread that polls keyboard. |
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116 | */ |
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2043 | jermar | 117 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
1903 | jermar | 118 | if (!t) |
119 | panic("cannot create kkbdpoll\n"); |
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120 | thread_ready(t); |
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121 | } |
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503 | jermar | 122 | } |
123 | |||
1881 | jermar | 124 | /** Calibrate delay loop. |
125 | * |
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126 | * On sparc64, we implement delay() by waiting for the TICK register to |
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127 | * reach a pre-computed value, as opposed to performing some pre-computed |
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128 | * amount of instructions of known duration. We set the delay_loop_const |
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129 | * to 1 in order to neutralize the multiplication done by delay(). |
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130 | */ |
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424 | jermar | 131 | void calibrate_delay_loop(void) |
132 | { |
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1881 | jermar | 133 | CPU->delay_loop_const = 1; |
424 | jermar | 134 | } |
1474 | palkovsky | 135 | |
1881 | jermar | 136 | /** Wait several microseconds. |
137 | * |
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138 | * We assume that interrupts are already disabled. |
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139 | * |
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140 | * @param t Microseconds to wait. |
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141 | */ |
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142 | void asm_delay_loop(const uint32_t usec) |
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143 | { |
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2043 | jermar | 144 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
2107 | jermar | 145 | CPU->arch.clock_frequency / 1000000; |
1881 | jermar | 146 | |
147 | while (tick_read() < stop) |
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148 | ; |
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149 | } |
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150 | |||
1860 | jermar | 151 | /** Switch to userspace. */ |
152 | void userspace(uspace_arg_t *kernel_uarg) |
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153 | { |
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154 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
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2107 | jermar | 155 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
156 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
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157 | (uintptr_t) kernel_uarg->uspace_uarg); |
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1860 | jermar | 158 | |
159 | for (;;) |
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160 | ; |
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161 | /* not reached */ |
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162 | } |
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163 | |||
2227 | decky | 164 | void arch_reboot(void) |
165 | { |
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166 | // TODO |
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167 | while (1); |
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168 | } |
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169 | |||
1769 | jermar | 170 | /** @} |
1702 | cejka | 171 | */ |