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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 ia64 |
29 | /** @addtogroup ia64 |
30 | * @ingroup others |
- | |
31 | * @{ |
30 | * @{ |
32 | */ |
31 | */ |
33 | /** @file |
32 | /** @file |
34 | */ |
33 | */ |
35 | 34 | ||
36 | #include <arch.h> |
35 | #include <arch.h> |
37 | #include <arch/ski/ski.h> |
36 | #include <arch/ski/ski.h> |
38 | #include <arch/drivers/it.h> |
37 | #include <arch/drivers/it.h> |
39 | #include <arch/interrupt.h> |
38 | #include <arch/interrupt.h> |
40 | #include <arch/barrier.h> |
39 | #include <arch/barrier.h> |
41 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
42 | #include <arch/register.h> |
41 | #include <arch/register.h> |
43 | #include <arch/types.h> |
42 | #include <arch/types.h> |
44 | #include <arch/context.h> |
43 | #include <arch/context.h> |
45 | #include <arch/stack.h> |
44 | #include <arch/stack.h> |
46 | #include <arch/mm/page.h> |
45 | #include <arch/mm/page.h> |
47 | #include <mm/as.h> |
46 | #include <mm/as.h> |
48 | #include <config.h> |
47 | #include <config.h> |
49 | #include <userspace.h> |
48 | #include <userspace.h> |
50 | #include <console/console.h> |
49 | #include <console/console.h> |
51 | #include <proc/uarg.h> |
50 | #include <proc/uarg.h> |
52 | #include <syscall/syscall.h> |
51 | #include <syscall/syscall.h> |
53 | 52 | ||
54 | static int kbd_release=0; |
53 | static int kbd_release=0; |
55 | 54 | ||
56 | void arch_pre_main(void) |
55 | void arch_pre_main(void) |
57 | { |
56 | { |
58 | /* Setup usermode init tasks. */ |
57 | /* Setup usermode init tasks. */ |
59 | init.cnt = 8; |
58 | init.cnt = 8; |
60 | init.tasks[0].addr = INIT0_ADDRESS; |
59 | init.tasks[0].addr = INIT0_ADDRESS; |
61 | init.tasks[0].size = INIT0_SIZE; |
60 | init.tasks[0].size = INIT0_SIZE; |
62 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
61 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
63 | init.tasks[1].size = INIT0_SIZE; |
62 | init.tasks[1].size = INIT0_SIZE; |
64 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
63 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
65 | init.tasks[2].size = INIT0_SIZE; |
64 | init.tasks[2].size = INIT0_SIZE; |
66 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
65 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
67 | init.tasks[3].size = INIT0_SIZE; |
66 | init.tasks[3].size = INIT0_SIZE; |
68 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
67 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
69 | init.tasks[4].size = INIT0_SIZE; |
68 | init.tasks[4].size = INIT0_SIZE; |
70 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
69 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
71 | init.tasks[5].size = INIT0_SIZE; |
70 | init.tasks[5].size = INIT0_SIZE; |
72 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
71 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
73 | init.tasks[6].size = INIT0_SIZE; |
72 | init.tasks[6].size = INIT0_SIZE; |
74 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
73 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
75 | init.tasks[7].size = INIT0_SIZE; |
74 | init.tasks[7].size = INIT0_SIZE; |
76 | } |
75 | } |
77 | 76 | ||
78 | void arch_pre_mm_init(void) |
77 | void arch_pre_mm_init(void) |
79 | { |
78 | { |
80 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
79 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
81 | iva_write((__address) &ivt); |
80 | iva_write((__address) &ivt); |
82 | srlz_d(); |
81 | srlz_d(); |
83 | 82 | ||
84 | ski_init_console(); |
83 | ski_init_console(); |
85 | it_init(); |
84 | it_init(); |
86 | } |
85 | } |
87 | 86 | ||
88 | void arch_post_mm_init(void) |
87 | void arch_post_mm_init(void) |
89 | { |
88 | { |
90 | ski_set_console_sysinfo(); |
89 | ski_set_console_sysinfo(); |
91 | } |
90 | } |
92 | 91 | ||
93 | void arch_pre_smp_init(void) |
92 | void arch_pre_smp_init(void) |
94 | { |
93 | { |
95 | } |
94 | } |
96 | 95 | ||
97 | void arch_post_smp_init(void) |
96 | void arch_post_smp_init(void) |
98 | { |
97 | { |
99 | } |
98 | } |
100 | 99 | ||
101 | /** Enter userspace and never return. */ |
100 | /** Enter userspace and never return. */ |
102 | void userspace(uspace_arg_t *kernel_uarg) |
101 | void userspace(uspace_arg_t *kernel_uarg) |
103 | { |
102 | { |
104 | psr_t psr; |
103 | psr_t psr; |
105 | rsc_t rsc; |
104 | rsc_t rsc; |
106 | 105 | ||
107 | psr.value = psr_read(); |
106 | psr.value = psr_read(); |
108 | psr.cpl = PL_USER; |
107 | psr.cpl = PL_USER; |
109 | psr.i = true; /* start with interrupts enabled */ |
108 | psr.i = true; /* start with interrupts enabled */ |
110 | psr.ic = true; |
109 | psr.ic = true; |
111 | psr.ri = 0; /* start with instruction #0 */ |
110 | psr.ri = 0; /* start with instruction #0 */ |
112 | psr.bn = 1; /* start in bank 0 */ |
111 | psr.bn = 1; /* start in bank 0 */ |
113 | 112 | ||
114 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
113 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
115 | rsc.loadrs = 0; |
114 | rsc.loadrs = 0; |
116 | rsc.be = false; |
115 | rsc.be = false; |
117 | rsc.pl = PL_USER; |
116 | rsc.pl = PL_USER; |
118 | rsc.mode = 3; /* eager mode */ |
117 | rsc.mode = 3; /* eager mode */ |
119 | 118 | ||
120 | switch_to_userspace((__address) kernel_uarg->uspace_entry, |
119 | switch_to_userspace((__address) kernel_uarg->uspace_entry, |
121 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
120 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
122 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE, |
121 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE, |
123 | (__address) kernel_uarg->uspace_uarg, |
122 | (__address) kernel_uarg->uspace_uarg, |
124 | psr.value, rsc.value); |
123 | psr.value, rsc.value); |
125 | 124 | ||
126 | while (1) { |
125 | while (1) { |
127 | ; |
126 | ; |
128 | } |
127 | } |
129 | } |
128 | } |
130 | 129 | ||
131 | /** Set thread-local-storage pointer. |
130 | /** Set thread-local-storage pointer. |
132 | * |
131 | * |
133 | * We use r13 (a.k.a. tp) for this purpose. |
132 | * We use r13 (a.k.a. tp) for this purpose. |
134 | */ |
133 | */ |
135 | __native sys_tls_set(__native addr) |
134 | __native sys_tls_set(__native addr) |
136 | { |
135 | { |
137 | return 0; |
136 | return 0; |
138 | } |
137 | } |
139 | 138 | ||
140 | /** Acquire console back for kernel |
139 | /** Acquire console back for kernel |
141 | * |
140 | * |
142 | */ |
141 | */ |
143 | void arch_grab_console(void) |
142 | void arch_grab_console(void) |
144 | { |
143 | { |
145 | kbd_release=kbd_uspace; |
144 | kbd_release=kbd_uspace; |
146 | kbd_uspace=0; |
145 | kbd_uspace=0; |
147 | } |
146 | } |
148 | /** Return console to userspace |
147 | /** Return console to userspace |
149 | * |
148 | * |
150 | */ |
149 | */ |
151 | void arch_release_console(void) |
150 | void arch_release_console(void) |
152 | { |
151 | { |
153 | kbd_uspace=kbd_release; |
152 | kbd_uspace=kbd_release; |
154 | } |
153 | } |
155 | 154 | ||
156 | /** @} |
155 | /** @} |
157 | */ |
156 | */ |
158 | 157 | ||
159 | 158 |