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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Ondrej Palkovsky |
2 | * Copyright (c) 2005 Ondrej Palkovsky |
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 amd64 |
29 | /** @addtogroup amd64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch.h> |
35 | #include <arch.h> |
36 | 36 | ||
37 | #include <arch/types.h> |
37 | #include <arch/types.h> |
38 | 38 | ||
39 | #include <config.h> |
39 | #include <config.h> |
40 | 40 | ||
41 | #include <proc/thread.h> |
41 | #include <proc/thread.h> |
42 | #include <arch/drivers/ega.h> |
42 | #include <arch/drivers/ega.h> |
43 | #include <arch/drivers/vesa.h> |
43 | #include <arch/drivers/vesa.h> |
44 | #include <genarch/kbd/i8042.h> |
44 | #include <genarch/kbd/i8042.h> |
45 | #include <arch/drivers/i8254.h> |
45 | #include <arch/drivers/i8254.h> |
46 | #include <arch/drivers/i8259.h> |
46 | #include <arch/drivers/i8259.h> |
47 | 47 | ||
48 | #ifdef CONFIG_SMP |
48 | #ifdef CONFIG_SMP |
49 | #include <arch/smp/apic.h> |
49 | #include <arch/smp/apic.h> |
50 | #endif |
50 | #endif |
51 | 51 | ||
52 | #include <arch/bios/bios.h> |
52 | #include <arch/bios/bios.h> |
53 | #include <arch/cpu.h> |
53 | #include <arch/cpu.h> |
54 | #include <print.h> |
54 | #include <print.h> |
55 | #include <arch/cpuid.h> |
55 | #include <arch/cpuid.h> |
56 | #include <genarch/acpi/acpi.h> |
56 | #include <genarch/acpi/acpi.h> |
57 | #include <panic.h> |
57 | #include <panic.h> |
58 | #include <interrupt.h> |
58 | #include <interrupt.h> |
59 | #include <arch/syscall.h> |
59 | #include <arch/syscall.h> |
60 | #include <arch/debugger.h> |
60 | #include <arch/debugger.h> |
61 | #include <syscall/syscall.h> |
61 | #include <syscall/syscall.h> |
62 | #include <console/console.h> |
62 | #include <console/console.h> |
63 | #include <ddi/irq.h> |
63 | #include <ddi/irq.h> |
64 | #include <ddi/device.h> |
64 | #include <ddi/device.h> |
65 | 65 | ||
66 | 66 | ||
67 | /** Disable I/O on non-privileged levels |
67 | /** Disable I/O on non-privileged levels |
68 | * |
68 | * |
69 | * Clean IOPL(12,13) and NT(14) flags in EFLAGS register |
69 | * Clean IOPL(12,13) and NT(14) flags in EFLAGS register |
70 | */ |
70 | */ |
71 | static void clean_IOPL_NT_flags(void) |
71 | static void clean_IOPL_NT_flags(void) |
72 | { |
72 | { |
73 | asm ( |
73 | asm ( |
74 | "pushfq\n" |
74 | "pushfq\n" |
75 | "pop %%rax\n" |
75 | "pop %%rax\n" |
76 | "and $~(0x7000), %%rax\n" |
76 | "and $~(0x7000), %%rax\n" |
77 | "pushq %%rax\n" |
77 | "pushq %%rax\n" |
78 | "popfq\n" |
78 | "popfq\n" |
79 | : |
79 | : |
80 | : |
80 | : |
81 | : "%rax" |
81 | : "%rax" |
82 | ); |
82 | ); |
83 | } |
83 | } |
84 | 84 | ||
85 | /** Disable alignment check |
85 | /** Disable alignment check |
86 | * |
86 | * |
87 | * Clean AM(18) flag in CR0 register |
87 | * Clean AM(18) flag in CR0 register |
88 | */ |
88 | */ |
89 | static void clean_AM_flag(void) |
89 | static void clean_AM_flag(void) |
90 | { |
90 | { |
91 | asm ( |
91 | asm ( |
92 | "mov %%cr0, %%rax\n" |
92 | "mov %%cr0, %%rax\n" |
93 | "and $~(0x40000), %%rax\n" |
93 | "and $~(0x40000), %%rax\n" |
94 | "mov %%rax, %%cr0\n" |
94 | "mov %%rax, %%cr0\n" |
95 | : |
95 | : |
96 | : |
96 | : |
97 | : "%rax" |
97 | : "%rax" |
98 | ); |
98 | ); |
99 | } |
99 | } |
100 | 100 | ||
101 | void arch_pre_mm_init(void) |
101 | void arch_pre_mm_init(void) |
102 | { |
102 | { |
103 | /* Enable no-execute pages */ |
103 | /* Enable no-execute pages */ |
104 | set_efer_flag(AMD_NXE_FLAG); |
104 | set_efer_flag(AMD_NXE_FLAG); |
105 | /* Enable FPU */ |
105 | /* Enable FPU */ |
106 | cpu_setup_fpu(); |
106 | cpu_setup_fpu(); |
107 | 107 | ||
108 | /* Initialize segmentation */ |
108 | /* Initialize segmentation */ |
109 | pm_init(); |
109 | pm_init(); |
110 | 110 | ||
111 | /* Disable I/O on nonprivileged levels |
111 | /* Disable I/O on nonprivileged levels |
112 | * clear the NT (nested-thread) flag |
112 | * clear the NT (nested-thread) flag |
113 | */ |
113 | */ |
114 | clean_IOPL_NT_flags(); |
114 | clean_IOPL_NT_flags(); |
115 | /* Disable alignment check */ |
115 | /* Disable alignment check */ |
116 | clean_AM_flag(); |
116 | clean_AM_flag(); |
117 | 117 | ||
118 | if (config.cpu_active == 1) { |
118 | if (config.cpu_active == 1) { |
119 | interrupt_init(); |
119 | interrupt_init(); |
120 | bios_init(); |
120 | bios_init(); |
121 | 121 | ||
122 | /* PIC */ |
122 | /* PIC */ |
123 | i8259_init(); |
123 | i8259_init(); |
124 | } |
124 | } |
125 | } |
125 | } |
126 | 126 | ||
127 | 127 | ||
128 | void arch_post_mm_init(void) |
128 | void arch_post_mm_init(void) |
129 | { |
129 | { |
130 | if (config.cpu_active == 1) { |
130 | if (config.cpu_active == 1) { |
131 | /* Initialize IRQ routing */ |
131 | /* Initialize IRQ routing */ |
132 | irq_init(IRQ_COUNT, IRQ_COUNT); |
132 | irq_init(IRQ_COUNT, IRQ_COUNT); |
133 | 133 | ||
134 | /* hard clock */ |
134 | /* hard clock */ |
135 | i8254_init(); |
135 | i8254_init(); |
136 | 136 | ||
137 | #ifdef CONFIG_FB |
137 | #ifdef CONFIG_FB |
138 | if (vesa_present()) |
138 | if (vesa_present()) |
139 | vesa_init(); |
139 | vesa_init(); |
140 | else |
140 | else |
141 | #endif |
141 | #endif |
142 | ega_init(); /* video */ |
142 | ega_init(); /* video */ |
143 | 143 | ||
144 | /* Enable debugger */ |
144 | /* Enable debugger */ |
145 | debugger_init(); |
145 | debugger_init(); |
146 | /* Merge all memory zones to 1 big zone */ |
146 | /* Merge all memory zones to 1 big zone */ |
147 | zone_merge_all(); |
147 | zone_merge_all(); |
148 | } |
148 | } |
149 | 149 | ||
150 | /* Setup fast SYSCALL/SYSRET */ |
150 | /* Setup fast SYSCALL/SYSRET */ |
151 | syscall_setup_cpu(); |
151 | syscall_setup_cpu(); |
152 | } |
152 | } |
153 | 153 | ||
154 | void arch_post_cpu_init() |
154 | void arch_post_cpu_init() |
155 | { |
155 | { |
156 | #ifdef CONFIG_SMP |
156 | #ifdef CONFIG_SMP |
157 | if (config.cpu_active > 1) { |
157 | if (config.cpu_active > 1) { |
158 | l_apic_init(); |
158 | l_apic_init(); |
159 | l_apic_debug(); |
159 | l_apic_debug(); |
160 | } |
160 | } |
161 | #endif |
161 | #endif |
162 | } |
162 | } |
163 | 163 | ||
164 | void arch_pre_smp_init(void) |
164 | void arch_pre_smp_init(void) |
165 | { |
165 | { |
166 | if (config.cpu_active == 1) { |
166 | if (config.cpu_active == 1) { |
167 | #ifdef CONFIG_SMP |
167 | #ifdef CONFIG_SMP |
168 | acpi_init(); |
168 | acpi_init(); |
169 | #endif /* CONFIG_SMP */ |
169 | #endif /* CONFIG_SMP */ |
170 | } |
170 | } |
171 | } |
171 | } |
172 | 172 | ||
173 | void arch_post_smp_init(void) |
173 | void arch_post_smp_init(void) |
174 | { |
174 | { |
175 | /* keyboard controller */ |
175 | /* keyboard controller */ |
176 | i8042_init(device_assign_devno(), IRQ_KBD, device_assign_devno(), IRQ_MOUSE); |
176 | i8042_init(device_assign_devno(), IRQ_KBD, device_assign_devno(), IRQ_MOUSE); |
177 | } |
177 | } |
178 | 178 | ||
179 | void calibrate_delay_loop(void) |
179 | void calibrate_delay_loop(void) |
180 | { |
180 | { |
181 | i8254_calibrate_delay_loop(); |
181 | i8254_calibrate_delay_loop(); |
182 | if (config.cpu_active == 1) { |
182 | if (config.cpu_active == 1) { |
183 | /* |
183 | /* |
184 | * This has to be done only on UP. |
184 | * This has to be done only on UP. |
185 | * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. |
185 | * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. |
186 | */ |
186 | */ |
187 | i8254_normal_operation(); |
187 | i8254_normal_operation(); |
188 | } |
188 | } |
189 | } |
189 | } |
190 | 190 | ||
191 | /** Set thread-local-storage pointer |
191 | /** Set thread-local-storage pointer |
192 | * |
192 | * |
193 | * TLS pointer is set in FS register. Unfortunately the 64-bit |
193 | * TLS pointer is set in FS register. Unfortunately the 64-bit |
194 | * part can be set only in CPL0 mode. |
194 | * part can be set only in CPL0 mode. |
195 | * |
195 | * |
196 | * The specs say, that on %fs:0 there is stored contents of %fs register, |
196 | * The specs say, that on %fs:0 there is stored contents of %fs register, |
197 | * we need not to go to CPL0 to read it. |
197 | * we need not to go to CPL0 to read it. |
198 | */ |
198 | */ |
199 | unative_t sys_tls_set(unative_t addr) |
199 | unative_t sys_tls_set(unative_t addr) |
200 | { |
200 | { |
201 | THREAD->arch.tls = addr; |
201 | THREAD->arch.tls = addr; |
202 | write_msr(AMD_MSR_FS, addr); |
202 | write_msr(AMD_MSR_FS, addr); |
203 | return 0; |
203 | return 0; |
204 | } |
204 | } |
205 | 205 | ||
206 | /** Acquire console back for kernel |
206 | /** Acquire console back for kernel |
207 | * |
207 | * |
208 | */ |
208 | */ |
209 | void arch_grab_console(void) |
209 | void arch_grab_console(void) |
210 | { |
210 | { |
211 | i8042_grab(); |
211 | i8042_grab(); |
212 | } |
212 | } |
- | 213 | ||
213 | /** Return console to userspace |
214 | /** Return console to userspace |
214 | * |
215 | * |
215 | */ |
216 | */ |
216 | void arch_release_console(void) |
217 | void arch_release_console(void) |
217 | { |
218 | { |
218 | i8042_release(); |
219 | i8042_release(); |
219 | } |
220 | } |
220 | 221 | ||
221 | /** @} |
222 | /** @} |
222 | */ |
223 | */ |
223 | 224 |