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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup ia64 |
29 | /** @addtogroup ia64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch.h> |
35 | #include <arch.h> |
36 | #include <arch/ski/ski.h> |
36 | #include <arch/ski/ski.h> |
37 | #include <arch/drivers/it.h> |
37 | #include <arch/drivers/it.h> |
38 | #include <arch/interrupt.h> |
38 | #include <arch/interrupt.h> |
39 | #include <arch/barrier.h> |
39 | #include <arch/barrier.h> |
40 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
41 | #include <arch/register.h> |
41 | #include <arch/register.h> |
42 | #include <arch/types.h> |
42 | #include <arch/types.h> |
43 | #include <arch/context.h> |
43 | #include <arch/context.h> |
44 | #include <arch/stack.h> |
44 | #include <arch/stack.h> |
45 | #include <arch/mm/page.h> |
45 | #include <arch/mm/page.h> |
46 | #include <mm/as.h> |
46 | #include <mm/as.h> |
47 | #include <config.h> |
47 | #include <config.h> |
48 | #include <userspace.h> |
48 | #include <userspace.h> |
49 | #include <console/console.h> |
49 | #include <console/console.h> |
50 | #include <proc/uarg.h> |
50 | #include <proc/uarg.h> |
51 | #include <syscall/syscall.h> |
51 | #include <syscall/syscall.h> |
52 | #include <ddi/irq.h> |
52 | #include <ddi/irq.h> |
53 | #include <arch/drivers/ega.h> |
53 | #include <arch/drivers/ega.h> |
54 | 54 | ||
55 | void arch_pre_main(void) |
55 | void arch_pre_main(void) |
56 | { |
56 | { |
57 | /* Setup usermode init tasks. */ |
57 | /* Setup usermode init tasks. */ |
58 | init.cnt = 8; |
58 | init.cnt = 8; |
59 | init.tasks[0].addr = INIT0_ADDRESS; |
59 | init.tasks[0].addr = INIT0_ADDRESS; |
60 | init.tasks[0].size = INIT0_SIZE; |
60 | init.tasks[0].size = INIT0_SIZE; |
61 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
61 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
62 | init.tasks[1].size = INIT0_SIZE; |
62 | init.tasks[1].size = INIT0_SIZE; |
63 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
63 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
64 | init.tasks[2].size = INIT0_SIZE; |
64 | init.tasks[2].size = INIT0_SIZE; |
65 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
65 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
66 | init.tasks[3].size = INIT0_SIZE; |
66 | init.tasks[3].size = INIT0_SIZE; |
67 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
67 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
68 | init.tasks[4].size = INIT0_SIZE; |
68 | init.tasks[4].size = INIT0_SIZE; |
69 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
69 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
70 | init.tasks[5].size = INIT0_SIZE; |
70 | init.tasks[5].size = INIT0_SIZE; |
71 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
71 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
72 | init.tasks[6].size = INIT0_SIZE; |
72 | init.tasks[6].size = INIT0_SIZE; |
73 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
73 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
74 | init.tasks[7].size = INIT0_SIZE; |
74 | init.tasks[7].size = INIT0_SIZE; |
75 | } |
75 | } |
76 | 76 | ||
77 | void arch_pre_mm_init(void) |
77 | void arch_pre_mm_init(void) |
78 | { |
78 | { |
79 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
79 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
80 | iva_write((uintptr_t) &ivt); |
80 | iva_write((uintptr_t) &ivt); |
81 | srlz_d(); |
81 | srlz_d(); |
82 | 82 | ||
83 | } |
83 | } |
84 | 84 | ||
85 | void arch_post_mm_init(void) |
85 | void arch_post_mm_init(void) |
86 | { |
86 | { |
87 | irq_init(INR_COUNT, INR_COUNT); |
87 | irq_init(INR_COUNT, INR_COUNT); |
88 | #ifdef SKI |
88 | #ifdef SKI |
89 | ski_init_console(); |
89 | ski_init_console(); |
90 | #else |
90 | #else |
91 | ega_init(); |
91 | ega_init(); |
92 | #endif |
92 | #endif |
93 | it_init(); |
93 | it_init(); |
94 | } |
94 | } |
95 | 95 | ||
96 | void arch_post_cpu_init(void) |
96 | void arch_post_cpu_init(void) |
97 | { |
97 | { |
98 | } |
98 | } |
99 | 99 | ||
100 | void arch_pre_smp_init(void) |
100 | void arch_pre_smp_init(void) |
101 | { |
101 | { |
102 | } |
102 | } |
103 | 103 | ||
104 | void arch_post_smp_init(void) |
104 | void arch_post_smp_init(void) |
105 | { |
105 | { |
106 | 106 | ||
107 | if (config.cpu_active == 1) { |
107 | if (config.cpu_active == 1) { |
108 | /* |
108 | /* |
109 | * Create thread that polls keyboard. |
109 | * Create thread that polls keyboard. |
110 | */ |
110 | */ |
111 | #ifdef SKI |
111 | #ifdef SKI |
112 | thread_t *t; |
112 | thread_t *t; |
113 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
113 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
114 | if (!t) |
114 | if (!t) |
115 | panic("cannot create kkbdpoll\n"); |
115 | panic("cannot create kkbdpoll\n"); |
116 | thread_ready(t); |
116 | thread_ready(t); |
117 | #endif |
117 | #endif |
118 | } |
118 | } |
119 | } |
119 | } |
120 | 120 | ||
121 | /** Enter userspace and never return. */ |
121 | /** Enter userspace and never return. */ |
122 | void userspace(uspace_arg_t *kernel_uarg) |
122 | void userspace(uspace_arg_t *kernel_uarg) |
123 | { |
123 | { |
124 | psr_t psr; |
124 | psr_t psr; |
125 | rsc_t rsc; |
125 | rsc_t rsc; |
126 | 126 | ||
127 | psr.value = psr_read(); |
127 | psr.value = psr_read(); |
128 | psr.cpl = PL_USER; |
128 | psr.cpl = PL_USER; |
129 | psr.i = true; /* start with interrupts enabled */ |
129 | psr.i = true; /* start with interrupts enabled */ |
130 | psr.ic = true; |
130 | psr.ic = true; |
131 | psr.ri = 0; /* start with instruction #0 */ |
131 | psr.ri = 0; /* start with instruction #0 */ |
132 | psr.bn = 1; /* start in bank 0 */ |
132 | psr.bn = 1; /* start in bank 0 */ |
133 | 133 | ||
134 | asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
134 | asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
135 | rsc.loadrs = 0; |
135 | rsc.loadrs = 0; |
136 | rsc.be = false; |
136 | rsc.be = false; |
137 | rsc.pl = PL_USER; |
137 | rsc.pl = PL_USER; |
138 | rsc.mode = 3; /* eager mode */ |
138 | rsc.mode = 3; /* eager mode */ |
139 | 139 | ||
140 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
140 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
141 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
141 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
142 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE, |
142 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE, |
143 | (uintptr_t) kernel_uarg->uspace_uarg, |
143 | (uintptr_t) kernel_uarg->uspace_uarg, |
144 | psr.value, rsc.value); |
144 | psr.value, rsc.value); |
145 | 145 | ||
146 | while (1) { |
146 | while (1) { |
147 | ; |
147 | ; |
148 | } |
148 | } |
149 | } |
149 | } |
150 | 150 | ||
151 | /** Set thread-local-storage pointer. |
151 | /** Set thread-local-storage pointer. |
152 | * |
152 | * |
153 | * We use r13 (a.k.a. tp) for this purpose. |
153 | * We use r13 (a.k.a. tp) for this purpose. |
154 | */ |
154 | */ |
155 | unative_t sys_tls_set(unative_t addr) |
155 | unative_t sys_tls_set(unative_t addr) |
156 | { |
156 | { |
157 | return 0; |
157 | return 0; |
158 | } |
158 | } |
159 | 159 | ||
160 | /** Acquire console back for kernel |
160 | /** Acquire console back for kernel |
161 | * |
161 | * |
162 | */ |
162 | */ |
163 | void arch_grab_console(void) |
163 | void arch_grab_console(void) |
164 | { |
164 | { |
165 | #ifdef SKI |
165 | #ifdef SKI |
166 | ski_kbd_grab(); |
166 | ski_kbd_grab(); |
167 | #endif |
167 | #endif |
168 | } |
168 | } |
169 | /** Return console to userspace |
169 | /** Return console to userspace |
170 | * |
170 | * |
171 | */ |
171 | */ |
172 | void arch_release_console(void) |
172 | void arch_release_console(void) |
173 | { |
173 | { |
174 | #ifdef SKI |
174 | #ifdef SKI |
175 | ski_kbd_release(); |
175 | ski_kbd_release(); |
176 | #endif |
176 | #endif |
177 | } |
177 | } |
178 | 178 | ||
179 | void arch_reboot(void) |
179 | void arch_reboot(void) |
180 | { |
180 | { |
181 | // TODO |
181 | // TODO |
182 | while (1); |
182 | while (1); |
183 | } |
183 | } |
184 | 184 | ||
185 | /** @} |
185 | /** @} |
186 | */ |
186 | */ |
187 | 187 |