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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> |
1474 | palkovsky | 41 | #include <console/console.h> |
1790 | jermar | 42 | #include <arch/boot/boot.h> |
1792 | jermar | 43 | #include <arch/arch.h> |
1881 | jermar | 44 | #include <arch/asm.h> |
1860 | jermar | 45 | #include <arch/mm/page.h> |
46 | #include <arch/stack.h> |
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1895 | jermar | 47 | #include <genarch/ofw/ofw_tree.h> |
1860 | jermar | 48 | #include <userspace.h> |
1920 | jermar | 49 | #include <ddi/irq.h> |
424 | jermar | 50 | |
1790 | jermar | 51 | bootinfo_t bootinfo; |
52 | |||
2048 | jermar | 53 | /** Perform sparc64 specific initialization before main_bsp() is called. */ |
1864 | jermar | 54 | void arch_pre_main(void) |
55 | { |
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1894 | jermar | 56 | /* Copy init task info. */ |
1864 | jermar | 57 | init.cnt = bootinfo.taskmap.count; |
58 | |||
59 | uint32_t i; |
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60 | |||
61 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
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1982 | jermar | 62 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
1864 | jermar | 63 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
64 | } |
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1894 | jermar | 65 | |
66 | /* Copy boot allocations info. */ |
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67 | ballocs.base = bootinfo.ballocs.base; |
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68 | ballocs.size = bootinfo.ballocs.size; |
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1895 | jermar | 69 | |
70 | ofw_tree_init(bootinfo.ofw_root); |
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1864 | jermar | 71 | } |
72 | |||
2048 | jermar | 73 | /** Perform sparc64 specific initialization before mm is initialized. */ |
424 | jermar | 74 | void arch_pre_mm_init(void) |
75 | { |
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1903 | jermar | 76 | if (config.cpu_active == 1) |
77 | trap_init(); |
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424 | jermar | 78 | } |
79 | |||
2048 | jermar | 80 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
424 | jermar | 81 | void arch_post_mm_init(void) |
82 | { |
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1919 | jermar | 83 | if (config.cpu_active == 1) { |
2048 | jermar | 84 | /* |
85 | * We have 2^11 different interrupt vectors. |
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86 | * But we only create 128 buckets. |
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87 | */ |
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88 | irq_init(1 << 11, 128); |
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89 | |||
1903 | jermar | 90 | standalone_sparc64_console_init(); |
1919 | jermar | 91 | } |
424 | jermar | 92 | } |
93 | |||
1901 | jermar | 94 | void arch_post_cpu_init(void) |
95 | { |
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96 | } |
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97 | |||
503 | jermar | 98 | void arch_pre_smp_init(void) |
424 | jermar | 99 | { |
100 | } |
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101 | |||
503 | jermar | 102 | void arch_post_smp_init(void) |
103 | { |
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893 | jermar | 104 | thread_t *t; |
105 | |||
1903 | jermar | 106 | if (config.cpu_active == 1) { |
107 | /* |
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108 | * Create thread that polls keyboard. |
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109 | */ |
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2043 | jermar | 110 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
1903 | jermar | 111 | if (!t) |
112 | panic("cannot create kkbdpoll\n"); |
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113 | thread_ready(t); |
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114 | } |
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503 | jermar | 115 | } |
116 | |||
1881 | jermar | 117 | /** Calibrate delay loop. |
118 | * |
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119 | * On sparc64, we implement delay() by waiting for the TICK register to |
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120 | * reach a pre-computed value, as opposed to performing some pre-computed |
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121 | * amount of instructions of known duration. We set the delay_loop_const |
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122 | * to 1 in order to neutralize the multiplication done by delay(). |
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123 | */ |
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424 | jermar | 124 | void calibrate_delay_loop(void) |
125 | { |
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1881 | jermar | 126 | CPU->delay_loop_const = 1; |
424 | jermar | 127 | } |
1474 | palkovsky | 128 | |
1881 | jermar | 129 | /** Wait several microseconds. |
130 | * |
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131 | * We assume that interrupts are already disabled. |
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132 | * |
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133 | * @param t Microseconds to wait. |
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134 | */ |
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135 | void asm_delay_loop(const uint32_t usec) |
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136 | { |
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2043 | jermar | 137 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
138 | CPU->arch.clock_frequency / 1000000; |
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1881 | jermar | 139 | |
140 | while (tick_read() < stop) |
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141 | ; |
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142 | } |
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143 | |||
1860 | jermar | 144 | /** Switch to userspace. */ |
145 | void userspace(uspace_arg_t *kernel_uarg) |
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146 | { |
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147 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
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148 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
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1879 | jermar | 149 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
1864 | jermar | 150 | (uintptr_t) kernel_uarg->uspace_uarg); |
1860 | jermar | 151 | |
152 | for (;;) |
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153 | ; |
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154 | /* not reached */ |
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155 | } |
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156 | |||
1769 | jermar | 157 | /** @} |
1702 | cejka | 158 | */ |