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36 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
36 | 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 | |||
1888 | jermar | 29 | /** @addtogroup ia64 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
78 | jermar | 35 | #include <arch.h> |
36 | #include <arch/ski/ski.h> |
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435 | jermar | 37 | #include <arch/drivers/it.h> |
470 | jermar | 38 | #include <arch/interrupt.h> |
39 | #include <arch/barrier.h> |
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919 | jermar | 40 | #include <arch/asm.h> |
41 | #include <arch/register.h> |
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470 | jermar | 42 | #include <arch/types.h> |
919 | jermar | 43 | #include <arch/context.h> |
962 | jermar | 44 | #include <arch/stack.h> |
919 | jermar | 45 | #include <arch/mm/page.h> |
46 | #include <mm/as.h> |
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47 | #include <config.h> |
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48 | #include <userspace.h> |
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519 | vana | 49 | #include <console/console.h> |
1078 | jermar | 50 | #include <proc/uarg.h> |
1121 | jermar | 51 | #include <syscall/syscall.h> |
1942 | jermar | 52 | #include <ddi/irq.h> |
2513 | vana | 53 | #include <ddi/device.h> |
3779 | jermar | 54 | #include <arch/bootinfo.h> |
2110 | jermar | 55 | #include <arch/drivers/ega.h> |
3779 | jermar | 56 | #include <genarch/drivers/ega/ega.h> |
2513 | vana | 57 | #include <genarch/kbd/i8042.h> |
3578 | vana | 58 | #include <genarch/kbd/ns16550.h> |
59 | #include <smp/smp.h> |
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60 | #include <smp/ipi.h> |
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61 | #include <arch/atomic.h> |
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62 | #include <panic.h> |
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63 | #include <print.h> |
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3635 | vana | 64 | #include <sysinfo/sysinfo.h> |
519 | vana | 65 | |
3766 | jermar | 66 | /* NS16550 as a COM 1 */ |
67 | #define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE) |
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68 | #define NS16550_PORT 0x3f8 |
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3578 | vana | 69 | |
2513 | vana | 70 | bootinfo_t *bootinfo; |
71 | |||
3766 | jermar | 72 | static uint64_t iosapic_base = 0xfec00000; |
3657 | vana | 73 | |
1223 | jermar | 74 | void arch_pre_main(void) |
75 | { |
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76 | /* Setup usermode init tasks. */ |
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2513 | vana | 77 | |
2745 | decky | 78 | unsigned int i; |
79 | |||
2513 | vana | 80 | init.cnt = bootinfo->taskmap.count; |
2745 | decky | 81 | |
82 | for (i = 0; i < init.cnt; i++) { |
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3766 | jermar | 83 | init.tasks[i].addr = |
84 | ((unsigned long) bootinfo->taskmap.tasks[i].addr) | |
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85 | VRN_MASK; |
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2745 | decky | 86 | init.tasks[i].size = bootinfo->taskmap.tasks[i].size; |
2513 | vana | 87 | } |
1223 | jermar | 88 | } |
89 | |||
78 | jermar | 90 | void arch_pre_mm_init(void) |
91 | { |
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3766 | jermar | 92 | /* |
93 | * Set Interruption Vector Address (i.e. location of interruption vector |
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94 | * table). |
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95 | */ |
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1780 | jermar | 96 | iva_write((uintptr_t) &ivt); |
470 | jermar | 97 | srlz_d(); |
98 | |||
78 | jermar | 99 | } |
100 | |||
3657 | vana | 101 | static void iosapic_init(void) |
102 | { |
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3766 | jermar | 103 | uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) | FW_OFFSET; |
3657 | vana | 104 | int i; |
105 | |||
3775 | jermar | 106 | int myid, myeid; |
3657 | vana | 107 | |
3766 | jermar | 108 | myid = ia64_get_cpu_id(); |
109 | myeid = ia64_get_cpu_eid(); |
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3661 | vana | 110 | |
3766 | jermar | 111 | for (i = 0; i < 16; i++) { |
112 | if (i == 2) |
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113 | continue; /* Disable Cascade interrupt */ |
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114 | ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i; |
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3657 | vana | 115 | srlz_d(); |
3766 | jermar | 116 | ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i; |
3657 | vana | 117 | srlz_d(); |
3766 | jermar | 118 | ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1; |
3657 | vana | 119 | srlz_d(); |
3766 | jermar | 120 | ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) | |
121 | myeid << (48 - 32); |
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3657 | vana | 122 | srlz_d(); |
123 | } |
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124 | |||
125 | } |
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126 | |||
127 | |||
78 | jermar | 128 | void arch_post_mm_init(void) |
129 | { |
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3766 | jermar | 130 | if (config.cpu_active == 1) { |
3657 | vana | 131 | iosapic_init(); |
3578 | vana | 132 | irq_init(INR_COUNT, INR_COUNT); |
2064 | vana | 133 | #ifdef SKI |
3578 | vana | 134 | ski_init_console(); |
2064 | vana | 135 | #else |
3779 | jermar | 136 | ega_init(EGA_BASE, EGA_VIDEORAM); |
2064 | vana | 137 | #endif |
3578 | vana | 138 | } |
3657 | vana | 139 | it_init(); |
140 | |||
78 | jermar | 141 | } |
503 | jermar | 142 | |
1901 | jermar | 143 | void arch_post_cpu_init(void) |
144 | { |
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145 | } |
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146 | |||
503 | jermar | 147 | void arch_pre_smp_init(void) |
148 | { |
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149 | } |
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150 | |||
2513 | vana | 151 | |
152 | #ifdef I460GX |
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153 | #define POLL_INTERVAL 50000 /* 50 ms */ |
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154 | /** Kernel thread for polling keyboard. */ |
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155 | static void i8042_kkbdpoll(void *arg) |
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156 | { |
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157 | while (1) { |
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3578 | vana | 158 | #ifdef CONFIG_NS16550 |
3657 | vana | 159 | #ifndef CONFIG_NS16550_INTERRUPT_DRIVEN |
3578 | vana | 160 | ns16550_poll(); |
3657 | vana | 161 | #endif |
3661 | vana | 162 | #else |
163 | #ifndef CONFIG_I8042_INTERRUPT_DRIVEN |
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164 | i8042_poll(); |
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165 | #endif |
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3578 | vana | 166 | #endif |
2513 | vana | 167 | thread_usleep(POLL_INTERVAL); |
168 | } |
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169 | } |
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170 | #endif |
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171 | |||
503 | jermar | 172 | void arch_post_smp_init(void) |
173 | { |
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3766 | jermar | 174 | thread_t *t; |
1945 | jermar | 175 | |
3766 | jermar | 176 | /* |
177 | * Create thread that polls keyboard. |
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178 | */ |
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2064 | vana | 179 | #ifdef SKI |
3766 | jermar | 180 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
181 | if (!t) |
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3790 | svoboda | 182 | panic("Cannot create kkbdpoll."); |
3766 | jermar | 183 | thread_ready(t); |
2064 | vana | 184 | #endif |
2513 | vana | 185 | |
186 | #ifdef I460GX |
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3766 | jermar | 187 | devno_t kbd = device_assign_devno(); |
2513 | vana | 188 | |
3578 | vana | 189 | #ifdef CONFIG_NS16550 |
3766 | jermar | 190 | ns16550_init(kbd, NS16550_PORT, NS16550_IRQ, NULL, NULL); |
3578 | vana | 191 | #else |
3766 | jermar | 192 | devno_t mouse = device_assign_devno(); |
193 | i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE); |
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3578 | vana | 194 | #endif |
3766 | jermar | 195 | t = thread_create(i8042_kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
196 | if (!t) |
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3790 | svoboda | 197 | panic("Cannot create kkbdpoll."); |
3766 | jermar | 198 | thread_ready(t); |
2513 | vana | 199 | #endif |
200 | |||
3635 | vana | 201 | sysinfo_set_item_val("ia64_iospace", NULL, true); |
202 | sysinfo_set_item_val("ia64_iospace.address", NULL, true); |
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203 | sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET); |
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503 | jermar | 204 | } |
919 | jermar | 205 | |
3578 | vana | 206 | |
919 | jermar | 207 | /** Enter userspace and never return. */ |
1078 | jermar | 208 | void userspace(uspace_arg_t *kernel_uarg) |
919 | jermar | 209 | { |
210 | psr_t psr; |
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211 | rsc_t rsc; |
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212 | |||
213 | psr.value = psr_read(); |
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214 | psr.cpl = PL_USER; |
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3766 | jermar | 215 | psr.i = true; /* start with interrupts enabled */ |
919 | jermar | 216 | psr.ic = true; |
3766 | jermar | 217 | psr.ri = 0; /* start with instruction #0 */ |
218 | psr.bn = 1; /* start in bank 0 */ |
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919 | jermar | 219 | |
2082 | decky | 220 | asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
919 | jermar | 221 | rsc.loadrs = 0; |
222 | rsc.be = false; |
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223 | rsc.pl = PL_USER; |
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3766 | jermar | 224 | rsc.mode = 3; /* eager mode */ |
919 | jermar | 225 | |
1780 | jermar | 226 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
3766 | jermar | 227 | ((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE - |
228 | ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
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229 | ((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE, |
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230 | (uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value); |
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919 | jermar | 231 | |
3766 | jermar | 232 | while (1) |
919 | jermar | 233 | ; |
234 | } |
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1121 | jermar | 235 | |
236 | /** Set thread-local-storage pointer. |
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237 | * |
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238 | * We use r13 (a.k.a. tp) for this purpose. |
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239 | */ |
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1780 | jermar | 240 | unative_t sys_tls_set(unative_t addr) |
1121 | jermar | 241 | { |
242 | return 0; |
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243 | } |
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1474 | palkovsky | 244 | |
245 | /** Acquire console back for kernel |
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246 | * |
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247 | */ |
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248 | void arch_grab_console(void) |
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249 | { |
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2064 | vana | 250 | #ifdef SKI |
1942 | jermar | 251 | ski_kbd_grab(); |
3657 | vana | 252 | #else |
3766 | jermar | 253 | #ifdef CONFIG_NS16550 |
254 | ns16550_grab(); |
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255 | #else |
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256 | i8042_grab(); |
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3844 | decky | 257 | #endif |
258 | #endif |
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1474 | palkovsky | 259 | } |
3766 | jermar | 260 | |
1474 | palkovsky | 261 | /** Return console to userspace |
262 | * |
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263 | */ |
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264 | void arch_release_console(void) |
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265 | { |
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2064 | vana | 266 | #ifdef SKI |
1942 | jermar | 267 | ski_kbd_release(); |
3657 | vana | 268 | #else |
3766 | jermar | 269 | #ifdef CONFIG_NS16550 |
270 | ns16550_release(); |
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271 | #else |
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272 | i8042_release(); |
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273 | #endif |
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2064 | vana | 274 | #endif |
1474 | palkovsky | 275 | } |
1702 | cejka | 276 | |
2227 | decky | 277 | void arch_reboot(void) |
278 | { |
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3766 | jermar | 279 | outb(0x64, 0xfe); |
280 | while (1) |
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281 | ; |
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2227 | decky | 282 | } |
283 | |||
1888 | jermar | 284 | /** @} |
1702 | cejka | 285 | */ |