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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 <arch/drivers/tick.h> |
- | |
41 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
42 | #include <console/console.h> |
41 | #include <console/console.h> |
43 | #include <arch/boot/boot.h> |
42 | #include <arch/boot/boot.h> |
44 | #include <arch/arch.h> |
43 | #include <arch/arch.h> |
45 | #include <arch/asm.h> |
44 | #include <arch/asm.h> |
46 | #include <arch/mm/page.h> |
45 | #include <arch/mm/page.h> |
47 | #include <arch/stack.h> |
46 | #include <arch/stack.h> |
48 | #include <genarch/ofw/ofw_tree.h> |
47 | #include <genarch/ofw/ofw_tree.h> |
49 | #include <userspace.h> |
48 | #include <userspace.h> |
50 | 49 | ||
51 | bootinfo_t bootinfo; |
50 | bootinfo_t bootinfo; |
52 | 51 | ||
53 | void arch_pre_main(void) |
52 | void arch_pre_main(void) |
54 | { |
53 | { |
55 | /* Copy init task info. */ |
54 | /* Copy init task info. */ |
56 | init.cnt = bootinfo.taskmap.count; |
55 | init.cnt = bootinfo.taskmap.count; |
57 | 56 | ||
58 | uint32_t i; |
57 | uint32_t i; |
59 | 58 | ||
60 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
59 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
61 | init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr); |
60 | init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr); |
62 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
61 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
63 | } |
62 | } |
64 | 63 | ||
65 | /* Copy boot allocations info. */ |
64 | /* Copy boot allocations info. */ |
66 | ballocs.base = bootinfo.ballocs.base; |
65 | ballocs.base = bootinfo.ballocs.base; |
67 | ballocs.size = bootinfo.ballocs.size; |
66 | ballocs.size = bootinfo.ballocs.size; |
68 | 67 | ||
69 | ofw_tree_init(bootinfo.ofw_root); |
68 | ofw_tree_init(bootinfo.ofw_root); |
70 | } |
69 | } |
71 | 70 | ||
72 | void arch_pre_mm_init(void) |
71 | void arch_pre_mm_init(void) |
73 | { |
72 | { |
74 | trap_init(); |
73 | trap_init(); |
75 | tick_init(); |
- | |
76 | } |
74 | } |
77 | 75 | ||
78 | void arch_post_mm_init(void) |
76 | void arch_post_mm_init(void) |
79 | { |
77 | { |
80 | standalone_sparc64_console_init(); |
78 | standalone_sparc64_console_init(); |
81 | } |
79 | } |
82 | 80 | ||
83 | void arch_pre_smp_init(void) |
81 | void arch_pre_smp_init(void) |
84 | { |
82 | { |
85 | } |
83 | } |
86 | 84 | ||
87 | void arch_post_smp_init(void) |
85 | void arch_post_smp_init(void) |
88 | { |
86 | { |
89 | thread_t *t; |
87 | thread_t *t; |
90 | 88 | ||
91 | /* |
89 | /* |
92 | * Create thread that polls keyboard. |
90 | * Create thread that polls keyboard. |
93 | */ |
91 | */ |
94 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll"); |
92 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll"); |
95 | if (!t) |
93 | if (!t) |
96 | panic("cannot create kkbdpoll\n"); |
94 | panic("cannot create kkbdpoll\n"); |
97 | thread_ready(t); |
95 | thread_ready(t); |
98 | } |
96 | } |
99 | 97 | ||
100 | /** Calibrate delay loop. |
98 | /** Calibrate delay loop. |
101 | * |
99 | * |
102 | * On sparc64, we implement delay() by waiting for the TICK register to |
100 | * On sparc64, we implement delay() by waiting for the TICK register to |
103 | * reach a pre-computed value, as opposed to performing some pre-computed |
101 | * reach a pre-computed value, as opposed to performing some pre-computed |
104 | * amount of instructions of known duration. We set the delay_loop_const |
102 | * amount of instructions of known duration. We set the delay_loop_const |
105 | * to 1 in order to neutralize the multiplication done by delay(). |
103 | * to 1 in order to neutralize the multiplication done by delay(). |
106 | */ |
104 | */ |
107 | void calibrate_delay_loop(void) |
105 | void calibrate_delay_loop(void) |
108 | { |
106 | { |
109 | CPU->delay_loop_const = 1; |
107 | CPU->delay_loop_const = 1; |
110 | } |
108 | } |
111 | 109 | ||
112 | /** Wait several microseconds. |
110 | /** Wait several microseconds. |
113 | * |
111 | * |
114 | * We assume that interrupts are already disabled. |
112 | * We assume that interrupts are already disabled. |
115 | * |
113 | * |
116 | * @param t Microseconds to wait. |
114 | * @param t Microseconds to wait. |
117 | */ |
115 | */ |
118 | void asm_delay_loop(const uint32_t usec) |
116 | void asm_delay_loop(const uint32_t usec) |
119 | { |
117 | { |
120 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) CPU->arch.clock_frequency / 1000000; |
118 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) CPU->arch.clock_frequency / 1000000; |
121 | 119 | ||
122 | while (tick_read() < stop) |
120 | while (tick_read() < stop) |
123 | ; |
121 | ; |
124 | } |
122 | } |
125 | 123 | ||
126 | /** Switch to userspace. */ |
124 | /** Switch to userspace. */ |
127 | void userspace(uspace_arg_t *kernel_uarg) |
125 | void userspace(uspace_arg_t *kernel_uarg) |
128 | { |
126 | { |
129 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
127 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
130 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
128 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
131 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
129 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
132 | (uintptr_t) kernel_uarg->uspace_uarg); |
130 | (uintptr_t) kernel_uarg->uspace_uarg); |
133 | 131 | ||
134 | for (;;) |
132 | for (;;) |
135 | ; |
133 | ; |
136 | /* not reached */ |
134 | /* not reached */ |
137 | } |
135 | } |
138 | 136 | ||
139 | /** @} |
137 | /** @} |
140 | */ |
138 | */ |
141 | 139 |