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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> |
- | |
37 | #include <config.h> |
- | |
38 | #include <arch/trap/trap.h> |
- | |
39 | #include <arch/console.h> |
- | |
40 | #include <proc/thread.h> |
- | |
41 | #include <console/console.h> |
- | |
42 | #include <arch/boot/boot.h> |
36 | #include <arch/boot/boot.h> |
43 | #include <arch/arch.h> |
- | |
44 | #include <arch/asm.h> |
- | |
45 | #include <arch/mm/page.h> |
- | |
46 | #include <arch/stack.h> |
- | |
47 | #include <arch/sun4v/md.h> |
37 | #include <arch/sun4v/md.h> |
48 | #include <genarch/ofw/ofw_tree.h> |
- | |
49 | #include <userspace.h> |
- | |
50 | #include <ddi/irq.h> |
- | |
51 | #include <print.h> |
- | |
52 | 38 | ||
53 | bootinfo_t bootinfo; |
- | |
54 | 39 | ||
55 | /** Perform sparc64 specific initialization before main_bsp() is called. */ |
40 | /** Perform sparc64 specific initialization before main_bsp() is called. */ |
56 | void arch_pre_main(void) |
41 | void arch_pre_main(void) |
57 | { |
42 | { |
58 | /* Copy init task info. */ |
43 | /* Copy init task info. */ |
59 | init.cnt = bootinfo.taskmap.count; |
44 | init.cnt = bootinfo.taskmap.count; |
60 | 45 | ||
61 | uint32_t i; |
46 | uint32_t i; |
62 | 47 | ||
63 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
48 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
64 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
49 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
65 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
50 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
66 | } |
51 | } |
67 | md_init(); |
52 | md_init(); |
68 | } |
53 | } |
69 | - | ||
70 | /** Perform sparc64 specific initialization before mm is initialized. */ |
- | |
71 | void arch_pre_mm_init(void) |
- | |
72 | { |
- | |
73 | if (config.cpu_active == 1) |
- | |
74 | trap_init(); |
- | |
75 | } |
- | |
76 | - | ||
77 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
- | |
78 | void arch_post_mm_init(void) |
- | |
79 | { |
- | |
80 | if (config.cpu_active == 1) { |
- | |
81 | /* |
- | |
82 | * We have 2^11 different interrupt vectors. |
- | |
83 | * But we only create 128 buckets. |
- | |
84 | */ |
- | |
85 | irq_init(1 << 11, 128); |
- | |
86 | } |
- | |
87 | - | ||
88 | standalone_sparc64_console_init(); |
- | |
89 | } |
- | |
90 | - | ||
91 | void arch_post_cpu_init(void) |
- | |
92 | { |
- | |
93 | } |
- | |
94 | - | ||
95 | void arch_pre_smp_init(void) |
- | |
96 | { |
- | |
97 | } |
- | |
98 | - | ||
99 | void arch_post_smp_init(void) |
- | |
100 | { |
- | |
101 | static thread_t *t = NULL; |
- | |
102 | - | ||
103 | - | ||
104 | if (!t) { |
- | |
105 | /* |
- | |
106 | * Create thread that polls keyboard. |
- | |
107 | */ |
- | |
108 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
- | |
109 | if (!t) |
- | |
110 | panic("cannot create kkbdpoll\n"); |
- | |
111 | thread_ready(t); |
- | |
112 | } |
- | |
113 | } |
- | |
114 | - | ||
115 | /** Calibrate delay loop. |
- | |
116 | * |
- | |
117 | * On sparc64, we implement delay() by waiting for the TICK register to |
- | |
118 | * reach a pre-computed value, as opposed to performing some pre-computed |
- | |
119 | * amount of instructions of known duration. We set the delay_loop_const |
- | |
120 | * to 1 in order to neutralize the multiplication done by delay(). |
- | |
121 | */ |
- | |
122 | void calibrate_delay_loop(void) |
- | |
123 | { |
- | |
124 | CPU->delay_loop_const = 1; |
- | |
125 | } |
- | |
126 | - | ||
127 | /** Wait several microseconds. |
- | |
128 | * |
- | |
129 | * We assume that interrupts are already disabled. |
- | |
130 | * |
- | |
131 | * @param t Microseconds to wait. |
- | |
132 | */ |
- | |
133 | void asm_delay_loop(const uint32_t usec) |
- | |
134 | { |
- | |
135 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
- | |
136 | CPU->arch.clock_frequency / 1000000; |
- | |
137 | - | ||
138 | while (tick_read() < stop) |
- | |
139 | ; |
- | |
140 | } |
- | |
141 | - | ||
142 | /** Switch to userspace. */ |
- | |
143 | void userspace(uspace_arg_t *kernel_uarg) |
- | |
144 | { |
- | |
145 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
- | |
146 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
- | |
147 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
- | |
148 | (uintptr_t) kernel_uarg->uspace_uarg); |
- | |
149 | - | ||
150 | for (;;) |
- | |
151 | ; |
- | |
152 | /* not reached */ |
- | |
153 | } |
- | |
154 | - | ||
155 | void arch_reboot(void) |
- | |
156 | { |
- | |
157 | // TODO |
- | |
158 | while (1); |
- | |
159 | } |
- | |
160 | 54 | ||
161 | /** @} |
55 | /** @} |
162 | */ |
56 | */ |
163 | 57 |