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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/simics/ega.h> |
53 | #include <arch/simics/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 | 85 | ||
86 | 86 | ||
87 | void arch_post_mm_init(void) |
87 | void arch_post_mm_init(void) |
88 | { |
88 | { |
89 | irq_init(INR_COUNT, INR_COUNT); |
89 | irq_init(INR_COUNT, INR_COUNT); |
90 | #ifdef SKI |
90 | #ifdef SKI |
91 | ski_init_console(); |
91 | ski_init_console(); |
92 | #else |
92 | #else |
93 | ega_init(); |
93 | ega_init(); |
94 | #endif |
94 | #endif |
95 | it_init(); |
95 | it_init(); |
96 | } |
96 | } |
97 | 97 | ||
98 | void arch_post_cpu_init(void) |
98 | void arch_post_cpu_init(void) |
99 | { |
99 | { |
100 | } |
100 | } |
101 | 101 | ||
102 | void arch_pre_smp_init(void) |
102 | void arch_pre_smp_init(void) |
103 | { |
103 | { |
104 | } |
104 | } |
105 | 105 | ||
106 | void arch_post_smp_init(void) |
106 | void arch_post_smp_init(void) |
107 | { |
107 | { |
108 | 108 | ||
109 | if (config.cpu_active == 1) { |
109 | if (config.cpu_active == 1) { |
110 | /* |
110 | /* |
111 | * Create thread that polls keyboard. |
111 | * Create thread that polls keyboard. |
112 | */ |
112 | */ |
113 | #ifdef SKI |
113 | #ifdef SKI |
114 | thread_t *t; |
114 | thread_t *t; |
115 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
115 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
116 | if (!t) |
116 | if (!t) |
117 | panic("cannot create kkbdpoll\n"); |
117 | panic("cannot create kkbdpoll\n"); |
118 | thread_ready(t); |
118 | thread_ready(t); |
119 | #endif |
119 | #endif |
120 | } |
120 | } |
121 | } |
121 | } |
122 | 122 | ||
123 | /** Enter userspace and never return. */ |
123 | /** Enter userspace and never return. */ |
124 | void userspace(uspace_arg_t *kernel_uarg) |
124 | void userspace(uspace_arg_t *kernel_uarg) |
125 | { |
125 | { |
126 | psr_t psr; |
126 | psr_t psr; |
127 | rsc_t rsc; |
127 | rsc_t rsc; |
128 | 128 | ||
129 | psr.value = psr_read(); |
129 | psr.value = psr_read(); |
130 | psr.cpl = PL_USER; |
130 | psr.cpl = PL_USER; |
131 | psr.i = true; /* start with interrupts enabled */ |
131 | psr.i = true; /* start with interrupts enabled */ |
132 | psr.ic = true; |
132 | psr.ic = true; |
133 | psr.ri = 0; /* start with instruction #0 */ |
133 | psr.ri = 0; /* start with instruction #0 */ |
134 | psr.bn = 1; /* start in bank 0 */ |
134 | psr.bn = 1; /* start in bank 0 */ |
135 | 135 | ||
136 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
136 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
137 | rsc.loadrs = 0; |
137 | rsc.loadrs = 0; |
138 | rsc.be = false; |
138 | rsc.be = false; |
139 | rsc.pl = PL_USER; |
139 | rsc.pl = PL_USER; |
140 | rsc.mode = 3; /* eager mode */ |
140 | rsc.mode = 3; /* eager mode */ |
141 | 141 | ||
142 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
142 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
143 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
143 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
144 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE, |
144 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE, |
145 | (uintptr_t) kernel_uarg->uspace_uarg, |
145 | (uintptr_t) kernel_uarg->uspace_uarg, |
146 | psr.value, rsc.value); |
146 | psr.value, rsc.value); |
147 | 147 | ||
148 | while (1) { |
148 | while (1) { |
149 | ; |
149 | ; |
150 | } |
150 | } |
151 | } |
151 | } |
152 | 152 | ||
153 | /** Set thread-local-storage pointer. |
153 | /** Set thread-local-storage pointer. |
154 | * |
154 | * |
155 | * We use r13 (a.k.a. tp) for this purpose. |
155 | * We use r13 (a.k.a. tp) for this purpose. |
156 | */ |
156 | */ |
157 | unative_t sys_tls_set(unative_t addr) |
157 | unative_t sys_tls_set(unative_t addr) |
158 | { |
158 | { |
159 | return 0; |
159 | return 0; |
160 | } |
160 | } |
161 | 161 | ||
162 | /** Acquire console back for kernel |
162 | /** Acquire console back for kernel |
163 | * |
163 | * |
164 | */ |
164 | */ |
165 | void arch_grab_console(void) |
165 | void arch_grab_console(void) |
166 | { |
166 | { |
167 | #ifdef SKI |
167 | #ifdef SKI |
168 | ski_kbd_grab(); |
168 | ski_kbd_grab(); |
169 | #endif |
169 | #endif |
170 | } |
170 | } |
171 | /** Return console to userspace |
171 | /** Return console to userspace |
172 | * |
172 | * |
173 | */ |
173 | */ |
174 | void arch_release_console(void) |
174 | void arch_release_console(void) |
175 | { |
175 | { |
176 | #ifdef SKI |
176 | #ifdef SKI |
177 | ski_kbd_release(); |
177 | ski_kbd_release(); |
178 | #endif |
178 | #endif |
179 | } |
179 | } |
180 | 180 | ||
181 | /** @} |
181 | /** @} |
182 | */ |
182 | */ |
183 | 183 |