Rev 3766 | Rev 3779 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
36 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
36 | jermar | 3 | * All rights reserved. |
4 | * |
||
5 | * Redistribution and use in source and binary forms, with or without |
||
6 | * modification, are permitted provided that the following conditions |
||
7 | * are met: |
||
8 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - Redistributions in binary form must reproduce the above copyright |
||
12 | * notice, this list of conditions and the following disclaimer in the |
||
13 | * documentation and/or other materials provided with the distribution. |
||
14 | * - The name of the author may not be used to endorse or promote products |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
1888 | jermar | 29 | /** @addtogroup ia64 |
1702 | cejka | 30 | * @{ |
31 | */ |
||
32 | /** @file |
||
33 | */ |
||
34 | |||
78 | jermar | 35 | #include <arch.h> |
36 | #include <arch/ski/ski.h> |
||
435 | jermar | 37 | #include <arch/drivers/it.h> |
470 | jermar | 38 | #include <arch/interrupt.h> |
39 | #include <arch/barrier.h> |
||
919 | jermar | 40 | #include <arch/asm.h> |
41 | #include <arch/register.h> |
||
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> |
||
47 | #include <config.h> |
||
48 | #include <userspace.h> |
||
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> |
2110 | jermar | 54 | #include <arch/drivers/ega.h> |
2513 | vana | 55 | #include <arch/bootinfo.h> |
56 | #include <genarch/kbd/i8042.h> |
||
3578 | vana | 57 | #include <genarch/kbd/ns16550.h> |
58 | #include <smp/smp.h> |
||
59 | #include <smp/ipi.h> |
||
60 | #include <arch/atomic.h> |
||
61 | #include <panic.h> |
||
62 | #include <print.h> |
||
3635 | vana | 63 | #include <sysinfo/sysinfo.h> |
519 | vana | 64 | |
3766 | jermar | 65 | /* NS16550 as a COM 1 */ |
66 | #define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE) |
||
67 | #define NS16550_PORT 0x3f8 |
||
3578 | vana | 68 | |
2513 | vana | 69 | bootinfo_t *bootinfo; |
70 | |||
3766 | jermar | 71 | static uint64_t iosapic_base = 0xfec00000; |
3657 | vana | 72 | |
1223 | jermar | 73 | void arch_pre_main(void) |
74 | { |
||
75 | /* Setup usermode init tasks. */ |
||
2513 | vana | 76 | |
2745 | decky | 77 | unsigned int i; |
78 | |||
2513 | vana | 79 | init.cnt = bootinfo->taskmap.count; |
2745 | decky | 80 | |
81 | for (i = 0; i < init.cnt; i++) { |
||
3766 | jermar | 82 | init.tasks[i].addr = |
83 | ((unsigned long) bootinfo->taskmap.tasks[i].addr) | |
||
84 | VRN_MASK; |
||
2745 | decky | 85 | init.tasks[i].size = bootinfo->taskmap.tasks[i].size; |
2513 | vana | 86 | } |
1223 | jermar | 87 | } |
88 | |||
78 | jermar | 89 | void arch_pre_mm_init(void) |
90 | { |
||
3766 | jermar | 91 | /* |
92 | * Set Interruption Vector Address (i.e. location of interruption vector |
||
93 | * table). |
||
94 | */ |
||
1780 | jermar | 95 | iva_write((uintptr_t) &ivt); |
470 | jermar | 96 | srlz_d(); |
97 | |||
78 | jermar | 98 | } |
99 | |||
3657 | vana | 100 | static void iosapic_init(void) |
101 | { |
||
3766 | jermar | 102 | uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) | FW_OFFSET; |
3657 | vana | 103 | int i; |
104 | |||
3775 | jermar | 105 | int myid, myeid; |
3657 | vana | 106 | |
3766 | jermar | 107 | myid = ia64_get_cpu_id(); |
108 | myeid = ia64_get_cpu_eid(); |
||
3661 | vana | 109 | |
3766 | jermar | 110 | for (i = 0; i < 16; i++) { |
111 | if (i == 2) |
||
112 | continue; /* Disable Cascade interrupt */ |
||
113 | ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i; |
||
3657 | vana | 114 | srlz_d(); |
3766 | jermar | 115 | ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i; |
3657 | vana | 116 | srlz_d(); |
3766 | jermar | 117 | ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1; |
3657 | vana | 118 | srlz_d(); |
3766 | jermar | 119 | ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) | |
120 | myeid << (48 - 32); |
||
3657 | vana | 121 | srlz_d(); |
122 | } |
||
123 | |||
124 | } |
||
125 | |||
126 | |||
78 | jermar | 127 | void arch_post_mm_init(void) |
128 | { |
||
3766 | jermar | 129 | if (config.cpu_active == 1) { |
3657 | vana | 130 | iosapic_init(); |
3578 | vana | 131 | irq_init(INR_COUNT, INR_COUNT); |
2064 | vana | 132 | #ifdef SKI |
3578 | vana | 133 | ski_init_console(); |
2064 | vana | 134 | #else |
3578 | vana | 135 | ega_init(); |
2064 | vana | 136 | #endif |
3578 | vana | 137 | } |
3657 | vana | 138 | it_init(); |
139 | |||
78 | jermar | 140 | } |
503 | jermar | 141 | |
1901 | jermar | 142 | void arch_post_cpu_init(void) |
143 | { |
||
144 | } |
||
145 | |||
503 | jermar | 146 | void arch_pre_smp_init(void) |
147 | { |
||
148 | } |
||
149 | |||
2513 | vana | 150 | |
151 | #ifdef I460GX |
||
152 | #define POLL_INTERVAL 50000 /* 50 ms */ |
||
153 | /** Kernel thread for polling keyboard. */ |
||
154 | static void i8042_kkbdpoll(void *arg) |
||
155 | { |
||
156 | while (1) { |
||
3578 | vana | 157 | #ifdef CONFIG_NS16550 |
3657 | vana | 158 | #ifndef CONFIG_NS16550_INTERRUPT_DRIVEN |
3578 | vana | 159 | ns16550_poll(); |
3657 | vana | 160 | #endif |
3661 | vana | 161 | #else |
162 | #ifndef CONFIG_I8042_INTERRUPT_DRIVEN |
||
163 | i8042_poll(); |
||
164 | #endif |
||
3578 | vana | 165 | #endif |
2513 | vana | 166 | thread_usleep(POLL_INTERVAL); |
167 | } |
||
168 | } |
||
169 | #endif |
||
170 | |||
503 | jermar | 171 | void arch_post_smp_init(void) |
172 | { |
||
3766 | jermar | 173 | thread_t *t; |
1945 | jermar | 174 | |
3766 | jermar | 175 | /* |
176 | * Create thread that polls keyboard. |
||
177 | */ |
||
2064 | vana | 178 | #ifdef SKI |
3766 | jermar | 179 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
180 | if (!t) |
||
181 | panic("cannot create kkbdpoll\n"); |
||
182 | thread_ready(t); |
||
2064 | vana | 183 | #endif |
2513 | vana | 184 | |
185 | #ifdef I460GX |
||
3766 | jermar | 186 | devno_t kbd = device_assign_devno(); |
2513 | vana | 187 | |
3578 | vana | 188 | #ifdef CONFIG_NS16550 |
3766 | jermar | 189 | ns16550_init(kbd, NS16550_PORT, NS16550_IRQ, NULL, NULL); |
3578 | vana | 190 | #else |
3766 | jermar | 191 | devno_t mouse = device_assign_devno(); |
192 | i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE); |
||
3578 | vana | 193 | #endif |
3766 | jermar | 194 | t = thread_create(i8042_kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
195 | if (!t) |
||
196 | panic("cannot create kkbdpoll\n"); |
||
197 | thread_ready(t); |
||
2513 | vana | 198 | #endif |
199 | |||
3635 | vana | 200 | sysinfo_set_item_val("ia64_iospace", NULL, true); |
201 | sysinfo_set_item_val("ia64_iospace.address", NULL, true); |
||
202 | sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET); |
||
503 | jermar | 203 | } |
919 | jermar | 204 | |
3578 | vana | 205 | |
919 | jermar | 206 | /** Enter userspace and never return. */ |
1078 | jermar | 207 | void userspace(uspace_arg_t *kernel_uarg) |
919 | jermar | 208 | { |
209 | psr_t psr; |
||
210 | rsc_t rsc; |
||
211 | |||
212 | psr.value = psr_read(); |
||
213 | psr.cpl = PL_USER; |
||
3766 | jermar | 214 | psr.i = true; /* start with interrupts enabled */ |
919 | jermar | 215 | psr.ic = true; |
3766 | jermar | 216 | psr.ri = 0; /* start with instruction #0 */ |
217 | psr.bn = 1; /* start in bank 0 */ |
||
919 | jermar | 218 | |
2082 | decky | 219 | asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
919 | jermar | 220 | rsc.loadrs = 0; |
221 | rsc.be = false; |
||
222 | rsc.pl = PL_USER; |
||
3766 | jermar | 223 | rsc.mode = 3; /* eager mode */ |
919 | jermar | 224 | |
1780 | jermar | 225 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
3766 | jermar | 226 | ((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE - |
227 | ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
||
228 | ((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE, |
||
229 | (uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value); |
||
919 | jermar | 230 | |
3766 | jermar | 231 | while (1) |
919 | jermar | 232 | ; |
233 | } |
||
1121 | jermar | 234 | |
235 | /** Set thread-local-storage pointer. |
||
236 | * |
||
237 | * We use r13 (a.k.a. tp) for this purpose. |
||
238 | */ |
||
1780 | jermar | 239 | unative_t sys_tls_set(unative_t addr) |
1121 | jermar | 240 | { |
241 | return 0; |
||
242 | } |
||
1474 | palkovsky | 243 | |
244 | /** Acquire console back for kernel |
||
245 | * |
||
246 | */ |
||
247 | void arch_grab_console(void) |
||
248 | { |
||
2064 | vana | 249 | #ifdef SKI |
1942 | jermar | 250 | ski_kbd_grab(); |
3657 | vana | 251 | #else |
3766 | jermar | 252 | #ifdef CONFIG_NS16550 |
253 | ns16550_grab(); |
||
254 | #else |
||
255 | i8042_grab(); |
||
2064 | vana | 256 | #endif |
3766 | jermar | 257 | #endif |
1474 | palkovsky | 258 | } |
3766 | jermar | 259 | |
1474 | palkovsky | 260 | /** Return console to userspace |
261 | * |
||
262 | */ |
||
263 | void arch_release_console(void) |
||
264 | { |
||
2064 | vana | 265 | #ifdef SKI |
1942 | jermar | 266 | ski_kbd_release(); |
3657 | vana | 267 | #else |
3766 | jermar | 268 | #ifdef CONFIG_NS16550 |
269 | ns16550_release(); |
||
270 | #else |
||
271 | i8042_release(); |
||
272 | #endif |
||
2064 | vana | 273 | #endif |
1474 | palkovsky | 274 | } |
1702 | cejka | 275 | |
2227 | decky | 276 | void arch_reboot(void) |
277 | { |
||
3766 | jermar | 278 | outb(0x64, 0xfe); |
279 | while (1) |
||
280 | ; |
||
2227 | decky | 281 | } |
282 | |||
1888 | jermar | 283 | /** @} |
1702 | cejka | 284 | */ |