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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 |
|
- | 30 | * @ingroup others |
|
- | 31 | * @{ |
|
- | 32 | */ |
|
- | 33 | /** @file |
|
- | 34 | */ |
|
- | 35 | ||
29 | #include <arch.h> |
36 | #include <arch.h> |
30 | #include <arch/ski/ski.h> |
37 | #include <arch/ski/ski.h> |
31 | #include <arch/drivers/it.h> |
38 | #include <arch/drivers/it.h> |
32 | #include <arch/interrupt.h> |
39 | #include <arch/interrupt.h> |
33 | #include <arch/barrier.h> |
40 | #include <arch/barrier.h> |
34 | #include <arch/asm.h> |
41 | #include <arch/asm.h> |
35 | #include <arch/register.h> |
42 | #include <arch/register.h> |
36 | #include <arch/types.h> |
43 | #include <arch/types.h> |
37 | #include <arch/context.h> |
44 | #include <arch/context.h> |
38 | #include <arch/stack.h> |
45 | #include <arch/stack.h> |
39 | #include <arch/mm/page.h> |
46 | #include <arch/mm/page.h> |
40 | #include <mm/as.h> |
47 | #include <mm/as.h> |
41 | #include <config.h> |
48 | #include <config.h> |
42 | #include <userspace.h> |
49 | #include <userspace.h> |
43 | #include <console/console.h> |
50 | #include <console/console.h> |
44 | #include <proc/uarg.h> |
51 | #include <proc/uarg.h> |
45 | #include <syscall/syscall.h> |
52 | #include <syscall/syscall.h> |
46 | 53 | ||
47 | static int kbd_release=0; |
54 | static int kbd_release=0; |
48 | 55 | ||
49 | void arch_pre_main(void) |
56 | void arch_pre_main(void) |
50 | { |
57 | { |
51 | /* Setup usermode init tasks. */ |
58 | /* Setup usermode init tasks. */ |
52 | init.cnt = 8; |
59 | init.cnt = 8; |
53 | init.tasks[0].addr = INIT0_ADDRESS; |
60 | init.tasks[0].addr = INIT0_ADDRESS; |
54 | init.tasks[0].size = INIT0_SIZE; |
61 | init.tasks[0].size = INIT0_SIZE; |
55 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
62 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
56 | init.tasks[1].size = INIT0_SIZE; |
63 | init.tasks[1].size = INIT0_SIZE; |
57 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
64 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
58 | init.tasks[2].size = INIT0_SIZE; |
65 | init.tasks[2].size = INIT0_SIZE; |
59 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
66 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
60 | init.tasks[3].size = INIT0_SIZE; |
67 | init.tasks[3].size = INIT0_SIZE; |
61 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
68 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
62 | init.tasks[4].size = INIT0_SIZE; |
69 | init.tasks[4].size = INIT0_SIZE; |
63 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
70 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
64 | init.tasks[5].size = INIT0_SIZE; |
71 | init.tasks[5].size = INIT0_SIZE; |
65 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
72 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
66 | init.tasks[6].size = INIT0_SIZE; |
73 | init.tasks[6].size = INIT0_SIZE; |
67 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
74 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
68 | init.tasks[7].size = INIT0_SIZE; |
75 | init.tasks[7].size = INIT0_SIZE; |
69 | } |
76 | } |
70 | 77 | ||
71 | void arch_pre_mm_init(void) |
78 | void arch_pre_mm_init(void) |
72 | { |
79 | { |
73 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
80 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
74 | iva_write((__address) &ivt); |
81 | iva_write((__address) &ivt); |
75 | srlz_d(); |
82 | srlz_d(); |
76 | 83 | ||
77 | ski_init_console(); |
84 | ski_init_console(); |
78 | it_init(); |
85 | it_init(); |
79 | } |
86 | } |
80 | 87 | ||
81 | void arch_post_mm_init(void) |
88 | void arch_post_mm_init(void) |
82 | { |
89 | { |
83 | ski_set_console_sysinfo(); |
90 | ski_set_console_sysinfo(); |
84 | } |
91 | } |
85 | 92 | ||
86 | void arch_pre_smp_init(void) |
93 | void arch_pre_smp_init(void) |
87 | { |
94 | { |
88 | } |
95 | } |
89 | 96 | ||
90 | void arch_post_smp_init(void) |
97 | void arch_post_smp_init(void) |
91 | { |
98 | { |
92 | } |
99 | } |
93 | 100 | ||
94 | /** Enter userspace and never return. */ |
101 | /** Enter userspace and never return. */ |
95 | void userspace(uspace_arg_t *kernel_uarg) |
102 | void userspace(uspace_arg_t *kernel_uarg) |
96 | { |
103 | { |
97 | psr_t psr; |
104 | psr_t psr; |
98 | rsc_t rsc; |
105 | rsc_t rsc; |
99 | 106 | ||
100 | psr.value = psr_read(); |
107 | psr.value = psr_read(); |
101 | psr.cpl = PL_USER; |
108 | psr.cpl = PL_USER; |
102 | psr.i = true; /* start with interrupts enabled */ |
109 | psr.i = true; /* start with interrupts enabled */ |
103 | psr.ic = true; |
110 | psr.ic = true; |
104 | psr.ri = 0; /* start with instruction #0 */ |
111 | psr.ri = 0; /* start with instruction #0 */ |
105 | psr.bn = 1; /* start in bank 0 */ |
112 | psr.bn = 1; /* start in bank 0 */ |
106 | 113 | ||
107 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
114 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
108 | rsc.loadrs = 0; |
115 | rsc.loadrs = 0; |
109 | rsc.be = false; |
116 | rsc.be = false; |
110 | rsc.pl = PL_USER; |
117 | rsc.pl = PL_USER; |
111 | rsc.mode = 3; /* eager mode */ |
118 | rsc.mode = 3; /* eager mode */ |
112 | 119 | ||
113 | switch_to_userspace((__address) kernel_uarg->uspace_entry, |
120 | switch_to_userspace((__address) kernel_uarg->uspace_entry, |
114 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
121 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
115 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE, |
122 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE, |
116 | (__address) kernel_uarg->uspace_uarg, |
123 | (__address) kernel_uarg->uspace_uarg, |
117 | psr.value, rsc.value); |
124 | psr.value, rsc.value); |
118 | 125 | ||
119 | while (1) { |
126 | while (1) { |
120 | ; |
127 | ; |
121 | } |
128 | } |
122 | } |
129 | } |
123 | 130 | ||
124 | /** Set thread-local-storage pointer. |
131 | /** Set thread-local-storage pointer. |
125 | * |
132 | * |
126 | * We use r13 (a.k.a. tp) for this purpose. |
133 | * We use r13 (a.k.a. tp) for this purpose. |
127 | */ |
134 | */ |
128 | __native sys_tls_set(__native addr) |
135 | __native sys_tls_set(__native addr) |
129 | { |
136 | { |
130 | return 0; |
137 | return 0; |
131 | } |
138 | } |
132 | 139 | ||
133 | /** Acquire console back for kernel |
140 | /** Acquire console back for kernel |
134 | * |
141 | * |
135 | */ |
142 | */ |
136 | void arch_grab_console(void) |
143 | void arch_grab_console(void) |
137 | { |
144 | { |
138 | kbd_release=kbd_uspace; |
145 | kbd_release=kbd_uspace; |
139 | kbd_uspace=0; |
146 | kbd_uspace=0; |
140 | } |
147 | } |
141 | /** Return console to userspace |
148 | /** Return console to userspace |
142 | * |
149 | * |
143 | */ |
150 | */ |
144 | void arch_release_console(void) |
151 | void arch_release_console(void) |
145 | { |
152 | { |
146 | kbd_uspace=kbd_release; |
153 | kbd_uspace=kbd_release; |
147 | } |
154 | } |
- | 155 | ||
- | 156 | /** @} |
|
- | 157 | */ |
|
- | 158 | ||
148 | 159 |