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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> |
- | |
41 | #include <console/console.h> |
40 | #include <console/console.h> |
42 | #include <arch/boot/boot.h> |
41 | #include <arch/boot/boot.h> |
43 | #include <arch/arch.h> |
42 | #include <arch/arch.h> |
44 | #include <arch/asm.h> |
43 | #include <arch/asm.h> |
45 | #include <arch/mm/page.h> |
44 | #include <arch/mm/page.h> |
46 | #include <arch/stack.h> |
45 | #include <arch/stack.h> |
47 | #include <genarch/ofw/ofw_tree.h> |
46 | #include <genarch/ofw/ofw_tree.h> |
48 | #include <userspace.h> |
47 | #include <userspace.h> |
49 | #include <ddi/irq.h> |
48 | #include <ddi/irq.h> |
50 | #include <string.h> |
49 | #include <string.h> |
51 | 50 | ||
52 | bootinfo_t bootinfo; |
51 | bootinfo_t bootinfo; |
53 | 52 | ||
54 | /** Perform sparc64-specific initialization before main_bsp() is called. */ |
53 | /** Perform sparc64-specific initialization before main_bsp() is called. */ |
55 | void arch_pre_main(void) |
54 | void arch_pre_main(void) |
56 | { |
55 | { |
57 | /* Copy init task info. */ |
56 | /* Copy init task info. */ |
58 | init.cnt = bootinfo.taskmap.count; |
57 | init.cnt = bootinfo.taskmap.count; |
59 | 58 | ||
60 | uint32_t i; |
59 | uint32_t i; |
61 | 60 | ||
62 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
61 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
63 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
62 | init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
64 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
63 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
65 | strncpy(init.tasks[i].name, bootinfo.taskmap.tasks[i].name, |
64 | strncpy(init.tasks[i].name, bootinfo.taskmap.tasks[i].name, |
66 | CONFIG_TASK_NAME_BUFLEN); |
65 | CONFIG_TASK_NAME_BUFLEN); |
67 | } |
66 | } |
68 | 67 | ||
69 | /* Copy boot allocations info. */ |
68 | /* Copy boot allocations info. */ |
70 | ballocs.base = bootinfo.ballocs.base; |
69 | ballocs.base = bootinfo.ballocs.base; |
71 | ballocs.size = bootinfo.ballocs.size; |
70 | ballocs.size = bootinfo.ballocs.size; |
72 | 71 | ||
73 | ofw_tree_init(bootinfo.ofw_root); |
72 | ofw_tree_init(bootinfo.ofw_root); |
74 | } |
73 | } |
75 | 74 | ||
76 | /** Perform sparc64 specific initialization before mm is initialized. */ |
75 | /** Perform sparc64 specific initialization before mm is initialized. */ |
77 | void arch_pre_mm_init(void) |
76 | void arch_pre_mm_init(void) |
78 | { |
77 | { |
79 | if (config.cpu_active == 1) |
78 | if (config.cpu_active == 1) |
80 | trap_init(); |
79 | trap_init(); |
81 | } |
80 | } |
82 | 81 | ||
83 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
82 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
84 | void arch_post_mm_init(void) |
83 | void arch_post_mm_init(void) |
85 | { |
84 | { |
86 | if (config.cpu_active == 1) { |
85 | if (config.cpu_active == 1) { |
87 | /* |
86 | /* |
88 | * We have 2^11 different interrupt vectors. |
87 | * We have 2^11 different interrupt vectors. |
89 | * But we only create 128 buckets. |
88 | * But we only create 128 buckets. |
90 | */ |
89 | */ |
91 | irq_init(1 << 11, 128); |
90 | irq_init(1 << 11, 128); |
92 | - | ||
93 | standalone_sparc64_console_init(); |
- | |
94 | } |
91 | } |
95 | } |
92 | } |
96 | 93 | ||
97 | void arch_post_cpu_init(void) |
94 | void arch_post_cpu_init(void) |
98 | { |
95 | { |
99 | } |
96 | } |
100 | 97 | ||
101 | void arch_pre_smp_init(void) |
98 | void arch_pre_smp_init(void) |
102 | { |
99 | { |
103 | } |
100 | } |
104 | 101 | ||
105 | void arch_post_smp_init(void) |
102 | void arch_post_smp_init(void) |
106 | { |
103 | { |
107 | static thread_t *t = NULL; |
- | |
108 | - | ||
109 | if (!t) { |
- | |
110 | /* |
- | |
111 | * Create thread that polls keyboard. |
- | |
112 | */ |
- | |
113 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
- | |
114 | if (!t) |
- | |
115 | panic("Cannot create kkbdpoll."); |
104 | standalone_sparc64_console_init(); |
116 | thread_ready(t); |
- | |
117 | } |
- | |
118 | } |
105 | } |
119 | 106 | ||
120 | /** Calibrate delay loop. |
107 | /** Calibrate delay loop. |
121 | * |
108 | * |
122 | * On sparc64, we implement delay() by waiting for the TICK register to |
109 | * On sparc64, we implement delay() by waiting for the TICK register to |
123 | * reach a pre-computed value, as opposed to performing some pre-computed |
110 | * reach a pre-computed value, as opposed to performing some pre-computed |
124 | * amount of instructions of known duration. We set the delay_loop_const |
111 | * amount of instructions of known duration. We set the delay_loop_const |
125 | * to 1 in order to neutralize the multiplication done by delay(). |
112 | * to 1 in order to neutralize the multiplication done by delay(). |
126 | */ |
113 | */ |
127 | void calibrate_delay_loop(void) |
114 | void calibrate_delay_loop(void) |
128 | { |
115 | { |
129 | CPU->delay_loop_const = 1; |
116 | CPU->delay_loop_const = 1; |
130 | } |
117 | } |
131 | 118 | ||
132 | /** Wait several microseconds. |
119 | /** Wait several microseconds. |
133 | * |
120 | * |
134 | * We assume that interrupts are already disabled. |
121 | * We assume that interrupts are already disabled. |
135 | * |
122 | * |
136 | * @param t Microseconds to wait. |
123 | * @param t Microseconds to wait. |
137 | */ |
124 | */ |
138 | void asm_delay_loop(const uint32_t usec) |
125 | void asm_delay_loop(const uint32_t usec) |
139 | { |
126 | { |
140 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
127 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
141 | CPU->arch.clock_frequency / 1000000; |
128 | CPU->arch.clock_frequency / 1000000; |
142 | 129 | ||
143 | while (tick_read() < stop) |
130 | while (tick_read() < stop) |
144 | ; |
131 | ; |
145 | } |
132 | } |
146 | 133 | ||
147 | /** Switch to userspace. */ |
134 | /** Switch to userspace. */ |
148 | void userspace(uspace_arg_t *kernel_uarg) |
135 | void userspace(uspace_arg_t *kernel_uarg) |
149 | { |
136 | { |
150 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
137 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
151 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
138 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
152 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
139 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
153 | (uintptr_t) kernel_uarg->uspace_uarg); |
140 | (uintptr_t) kernel_uarg->uspace_uarg); |
154 | 141 | ||
155 | for (;;) |
142 | for (;;) |
156 | ; |
143 | ; |
157 | /* not reached */ |
144 | /* not reached */ |
158 | } |
145 | } |
159 | 146 | ||
160 | void arch_reboot(void) |
147 | void arch_reboot(void) |
161 | { |
148 | { |
162 | // TODO |
149 | // TODO |
163 | while (1); |
150 | while (1); |
164 | } |
151 | } |
165 | 152 | ||
166 | /** Construct function pointer |
153 | /** Construct function pointer |
167 | * |
154 | * |
168 | * @param fptr function pointer structure |
155 | * @param fptr function pointer structure |
169 | * @param addr function address |
156 | * @param addr function address |
170 | * @param caller calling function address |
157 | * @param caller calling function address |
171 | * |
158 | * |
172 | * @return address of the function pointer |
159 | * @return address of the function pointer |
173 | * |
160 | * |
174 | */ |
161 | */ |
175 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
162 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
176 | { |
163 | { |
177 | return addr; |
164 | return addr; |
178 | } |
165 | } |
179 | 166 | ||
180 | /** @} |
167 | /** @} |
181 | */ |
168 | */ |
182 | 169 |