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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 sparc64 |
29 | /** @addtogroup sparc64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch.h> |
35 | #include <arch.h> |
36 | #include <debug.h> |
36 | #include <debug.h> |
37 | #include <config.h> |
37 | #include <config.h> |
38 | #include <arch/trap/trap.h> |
38 | #include <arch/trap/trap.h> |
39 | #include <arch/console.h> |
39 | #include <arch/console.h> |
40 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
41 | #include <console/console.h> |
41 | #include <console/console.h> |
42 | #include <arch/boot/boot.h> |
42 | #include <arch/boot/boot.h> |
43 | #include <arch/arch.h> |
43 | #include <arch/arch.h> |
44 | #include <arch/asm.h> |
44 | #include <arch/asm.h> |
45 | #include <arch/mm/page.h> |
45 | #include <arch/mm/page.h> |
46 | #include <arch/stack.h> |
46 | #include <arch/stack.h> |
47 | #include <genarch/ofw/ofw_tree.h> |
47 | #include <genarch/ofw/ofw_tree.h> |
48 | #include <userspace.h> |
48 | #include <userspace.h> |
49 | #include <ddi/irq.h> |
49 | #include <ddi/irq.h> |
50 | 50 | ||
51 | bootinfo_t bootinfo; |
51 | bootinfo_t bootinfo; |
52 | 52 | ||
53 | void arch_pre_main(void) |
53 | void arch_pre_main(void) |
54 | { |
54 | { |
55 | /* Copy init task info. */ |
55 | /* Copy init task info. */ |
56 | init.cnt = bootinfo.taskmap.count; |
56 | init.cnt = bootinfo.taskmap.count; |
57 | 57 | ||
58 | uint32_t i; |
58 | uint32_t i; |
59 | 59 | ||
60 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
60 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
61 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
61 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
62 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
62 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
63 | } |
63 | } |
64 | 64 | ||
65 | /* Copy boot allocations info. */ |
65 | /* Copy boot allocations info. */ |
66 | ballocs.base = bootinfo.ballocs.base; |
66 | ballocs.base = bootinfo.ballocs.base; |
67 | ballocs.size = bootinfo.ballocs.size; |
67 | ballocs.size = bootinfo.ballocs.size; |
68 | 68 | ||
69 | ofw_tree_init(bootinfo.ofw_root); |
69 | ofw_tree_init(bootinfo.ofw_root); |
70 | } |
70 | } |
71 | 71 | ||
72 | void arch_pre_mm_init(void) |
72 | void arch_pre_mm_init(void) |
73 | { |
73 | { |
74 | if (config.cpu_active == 1) |
74 | if (config.cpu_active == 1) |
75 | trap_init(); |
75 | trap_init(); |
76 | } |
76 | } |
77 | 77 | ||
78 | void arch_post_mm_init(void) |
78 | void arch_post_mm_init(void) |
79 | { |
79 | { |
80 | if (config.cpu_active == 1) { |
80 | if (config.cpu_active == 1) { |
81 | irq_init(1<<11, 128); |
81 | irq_init(1<<11, 128); |
82 | standalone_sparc64_console_init(); |
82 | standalone_sparc64_console_init(); |
83 | } |
83 | } |
84 | } |
84 | } |
85 | 85 | ||
86 | void arch_post_cpu_init(void) |
86 | void arch_post_cpu_init(void) |
87 | { |
87 | { |
88 | } |
88 | } |
89 | 89 | ||
90 | void arch_pre_smp_init(void) |
90 | void arch_pre_smp_init(void) |
91 | { |
91 | { |
92 | } |
92 | } |
93 | 93 | ||
94 | void arch_post_smp_init(void) |
94 | void arch_post_smp_init(void) |
95 | { |
95 | { |
96 | thread_t *t; |
96 | thread_t *t; |
97 | 97 | ||
98 | if (config.cpu_active == 1) { |
98 | if (config.cpu_active == 1) { |
99 | /* |
99 | /* |
100 | * Create thread that polls keyboard. |
100 | * Create thread that polls keyboard. |
101 | */ |
101 | */ |
102 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll"); |
102 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
103 | if (!t) |
103 | if (!t) |
104 | panic("cannot create kkbdpoll\n"); |
104 | panic("cannot create kkbdpoll\n"); |
105 | thread_ready(t); |
105 | thread_ready(t); |
106 | } |
106 | } |
107 | } |
107 | } |
108 | 108 | ||
109 | /** Calibrate delay loop. |
109 | /** Calibrate delay loop. |
110 | * |
110 | * |
111 | * On sparc64, we implement delay() by waiting for the TICK register to |
111 | * On sparc64, we implement delay() by waiting for the TICK register to |
112 | * reach a pre-computed value, as opposed to performing some pre-computed |
112 | * reach a pre-computed value, as opposed to performing some pre-computed |
113 | * amount of instructions of known duration. We set the delay_loop_const |
113 | * amount of instructions of known duration. We set the delay_loop_const |
114 | * to 1 in order to neutralize the multiplication done by delay(). |
114 | * to 1 in order to neutralize the multiplication done by delay(). |
115 | */ |
115 | */ |
116 | void calibrate_delay_loop(void) |
116 | void calibrate_delay_loop(void) |
117 | { |
117 | { |
118 | CPU->delay_loop_const = 1; |
118 | CPU->delay_loop_const = 1; |
119 | } |
119 | } |
120 | 120 | ||
121 | /** Wait several microseconds. |
121 | /** Wait several microseconds. |
122 | * |
122 | * |
123 | * We assume that interrupts are already disabled. |
123 | * We assume that interrupts are already disabled. |
124 | * |
124 | * |
125 | * @param t Microseconds to wait. |
125 | * @param t Microseconds to wait. |
126 | */ |
126 | */ |
127 | void asm_delay_loop(const uint32_t usec) |
127 | void asm_delay_loop(const uint32_t usec) |
128 | { |
128 | { |
129 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) CPU->arch.clock_frequency / 1000000; |
129 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
- | 130 | CPU->arch.clock_frequency / 1000000; |
|
130 | 131 | ||
131 | while (tick_read() < stop) |
132 | while (tick_read() < stop) |
132 | ; |
133 | ; |
133 | } |
134 | } |
134 | 135 | ||
135 | /** Switch to userspace. */ |
136 | /** Switch to userspace. */ |
136 | void userspace(uspace_arg_t *kernel_uarg) |
137 | void userspace(uspace_arg_t *kernel_uarg) |
137 | { |
138 | { |
138 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
139 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
139 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
140 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
140 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
141 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
141 | (uintptr_t) kernel_uarg->uspace_uarg); |
142 | (uintptr_t) kernel_uarg->uspace_uarg); |
142 | 143 | ||
143 | for (;;) |
144 | for (;;) |
144 | ; |
145 | ; |
145 | /* not reached */ |
146 | /* not reached */ |
146 | } |
147 | } |
147 | 148 | ||
148 | /** @} |
149 | /** @} |
149 | */ |
150 | */ |
150 | 151 |