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