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