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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 <genarch/multiboot/multiboot.h> |
|
42 | #include <genarch/drivers/legacy/ia32/io.h> |
43 | #include <genarch/drivers/legacy/ia32/io.h> |
43 | #include <genarch/drivers/ega/ega.h> |
44 | #include <genarch/drivers/ega/ega.h> |
44 | #include <arch/drivers/vesa.h> |
45 | #include <arch/drivers/vesa.h> |
45 | #include <genarch/kbd/i8042.h> |
46 | #include <genarch/kbd/i8042.h> |
46 | #include <arch/drivers/i8254.h> |
47 | #include <arch/drivers/i8254.h> |
47 | #include <arch/drivers/i8259.h> |
48 | #include <arch/drivers/i8259.h> |
- | 49 | #include <arch/boot/boot.h> |
|
48 | 50 | ||
49 | #ifdef CONFIG_SMP |
51 | #ifdef CONFIG_SMP |
50 | #include <arch/smp/apic.h> |
52 | #include <arch/smp/apic.h> |
51 | #endif |
53 | #endif |
52 | 54 | ||
53 | #include <arch/bios/bios.h> |
55 | #include <arch/bios/bios.h> |
54 | #include <arch/cpu.h> |
56 | #include <arch/cpu.h> |
55 | #include <print.h> |
57 | #include <print.h> |
56 | #include <arch/cpuid.h> |
58 | #include <arch/cpuid.h> |
57 | #include <genarch/acpi/acpi.h> |
59 | #include <genarch/acpi/acpi.h> |
58 | #include <panic.h> |
60 | #include <panic.h> |
59 | #include <interrupt.h> |
61 | #include <interrupt.h> |
60 | #include <arch/syscall.h> |
62 | #include <arch/syscall.h> |
61 | #include <arch/debugger.h> |
63 | #include <arch/debugger.h> |
62 | #include <syscall/syscall.h> |
64 | #include <syscall/syscall.h> |
63 | #include <console/console.h> |
65 | #include <console/console.h> |
64 | #include <ddi/irq.h> |
66 | #include <ddi/irq.h> |
65 | #include <ddi/device.h> |
67 | #include <ddi/device.h> |
66 | #include <sysinfo/sysinfo.h> |
68 | #include <sysinfo/sysinfo.h> |
67 | 69 | ||
68 | - | ||
69 | /** Disable I/O on non-privileged levels |
70 | /** Disable I/O on non-privileged levels |
70 | * |
71 | * |
71 | * Clean IOPL(12,13) and NT(14) flags in EFLAGS register |
72 | * Clean IOPL(12,13) and NT(14) flags in EFLAGS register |
72 | */ |
73 | */ |
73 | static void clean_IOPL_NT_flags(void) |
74 | static void clean_IOPL_NT_flags(void) |
74 | { |
75 | { |
75 | asm ( |
76 | asm volatile ( |
76 | "pushfq\n" |
77 | "pushfq\n" |
77 | "pop %%rax\n" |
78 | "pop %%rax\n" |
78 | "and $~(0x7000), %%rax\n" |
79 | "and $~(0x7000), %%rax\n" |
79 | "pushq %%rax\n" |
80 | "pushq %%rax\n" |
80 | "popfq\n" |
81 | "popfq\n" |
81 | : |
- | |
82 | : |
- | |
83 | : "%rax" |
82 | ::: "%rax" |
84 | ); |
83 | ); |
85 | } |
84 | } |
86 | 85 | ||
87 | /** Disable alignment check |
86 | /** Disable alignment check |
88 | * |
87 | * |
89 | * Clean AM(18) flag in CR0 register |
88 | * Clean AM(18) flag in CR0 register |
90 | */ |
89 | */ |
91 | static void clean_AM_flag(void) |
90 | static void clean_AM_flag(void) |
92 | { |
91 | { |
93 | asm ( |
92 | asm volatile ( |
94 | "mov %%cr0, %%rax\n" |
93 | "mov %%cr0, %%rax\n" |
95 | "and $~(0x40000), %%rax\n" |
94 | "and $~(0x40000), %%rax\n" |
96 | "mov %%rax, %%cr0\n" |
95 | "mov %%rax, %%cr0\n" |
97 | : |
- | |
98 | : |
- | |
99 | : "%rax" |
96 | ::: "%rax" |
100 | ); |
97 | ); |
101 | } |
98 | } |
102 | 99 | ||
- | 100 | /** Perform amd64-specific initialization before main_bsp() is called. |
|
- | 101 | * |
|
- | 102 | * @param signature Should contain the multiboot signature. |
|
- | 103 | * @param mi Pointer to the multiboot information structure. |
|
- | 104 | */ |
|
- | 105 | void arch_pre_main(uint32_t signature, const multiboot_info_t *mi) |
|
- | 106 | { |
|
- | 107 | /* Parse multiboot information obtained from the bootloader. */ |
|
- | 108 | multiboot_info_parse(signature, mi); |
|
- | 109 | ||
- | 110 | #ifdef CONFIG_SMP |
|
- | 111 | /* Copy AP bootstrap routines below 1 MB. */ |
|
- | 112 | memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET, |
|
- | 113 | (size_t) &_hardcoded_unmapped_size); |
|
- | 114 | #endif |
|
- | 115 | } |
|
- | 116 | ||
103 | void arch_pre_mm_init(void) |
117 | void arch_pre_mm_init(void) |
104 | { |
118 | { |
105 | /* Enable no-execute pages */ |
119 | /* Enable no-execute pages */ |
106 | set_efer_flag(AMD_NXE_FLAG); |
120 | set_efer_flag(AMD_NXE_FLAG); |
107 | /* Enable FPU */ |
121 | /* Enable FPU */ |
108 | cpu_setup_fpu(); |
122 | cpu_setup_fpu(); |
109 | 123 | ||
110 | /* Initialize segmentation */ |
124 | /* Initialize segmentation */ |
111 | pm_init(); |
125 | pm_init(); |
112 | 126 | ||
113 | /* Disable I/O on nonprivileged levels |
127 | /* Disable I/O on nonprivileged levels |
114 | * clear the NT (nested-thread) flag |
128 | * clear the NT (nested-thread) flag |
115 | */ |
129 | */ |
116 | clean_IOPL_NT_flags(); |
130 | clean_IOPL_NT_flags(); |
117 | /* Disable alignment check */ |
131 | /* Disable alignment check */ |
118 | clean_AM_flag(); |
132 | clean_AM_flag(); |
119 | 133 | ||
120 | if (config.cpu_active == 1) { |
134 | if (config.cpu_active == 1) { |
121 | interrupt_init(); |
135 | interrupt_init(); |
122 | bios_init(); |
136 | bios_init(); |
123 | 137 | ||
124 | /* PIC */ |
138 | /* PIC */ |
125 | i8259_init(); |
139 | i8259_init(); |
126 | } |
140 | } |
127 | } |
141 | } |
128 | 142 | ||
129 | 143 | ||
130 | void arch_post_mm_init(void) |
144 | void arch_post_mm_init(void) |
131 | { |
145 | { |
132 | if (config.cpu_active == 1) { |
146 | if (config.cpu_active == 1) { |
133 | /* Initialize IRQ routing */ |
147 | /* Initialize IRQ routing */ |
134 | irq_init(IRQ_COUNT, IRQ_COUNT); |
148 | irq_init(IRQ_COUNT, IRQ_COUNT); |
135 | 149 | ||
136 | /* hard clock */ |
150 | /* hard clock */ |
137 | i8254_init(); |
151 | i8254_init(); |
138 | 152 | ||
139 | #ifdef CONFIG_FB |
153 | #ifdef CONFIG_FB |
140 | if (vesa_present()) |
154 | if (vesa_present()) |
141 | vesa_init(); |
155 | vesa_init(); |
142 | else |
156 | else |
143 | #endif |
157 | #endif |
144 | ega_init(EGA_BASE, EGA_VIDEORAM); /* video */ |
158 | ega_init(EGA_BASE, EGA_VIDEORAM); /* video */ |
145 | 159 | ||
146 | /* Enable debugger */ |
160 | /* Enable debugger */ |
147 | debugger_init(); |
161 | debugger_init(); |
148 | /* Merge all memory zones to 1 big zone */ |
162 | /* Merge all memory zones to 1 big zone */ |
149 | zone_merge_all(); |
163 | zone_merge_all(); |
150 | } |
164 | } |
151 | 165 | ||
152 | /* Setup fast SYSCALL/SYSRET */ |
166 | /* Setup fast SYSCALL/SYSRET */ |
153 | syscall_setup_cpu(); |
167 | syscall_setup_cpu(); |
154 | } |
168 | } |
155 | 169 | ||
156 | void arch_post_cpu_init() |
170 | void arch_post_cpu_init() |
157 | { |
171 | { |
158 | #ifdef CONFIG_SMP |
172 | #ifdef CONFIG_SMP |
159 | if (config.cpu_active > 1) { |
173 | if (config.cpu_active > 1) { |
160 | l_apic_init(); |
174 | l_apic_init(); |
161 | l_apic_debug(); |
175 | l_apic_debug(); |
162 | } |
176 | } |
163 | #endif |
177 | #endif |
164 | } |
178 | } |
165 | 179 | ||
166 | void arch_pre_smp_init(void) |
180 | void arch_pre_smp_init(void) |
167 | { |
181 | { |
168 | if (config.cpu_active == 1) { |
182 | if (config.cpu_active == 1) { |
169 | #ifdef CONFIG_SMP |
183 | #ifdef CONFIG_SMP |
170 | acpi_init(); |
184 | acpi_init(); |
171 | #endif /* CONFIG_SMP */ |
185 | #endif /* CONFIG_SMP */ |
172 | } |
186 | } |
173 | } |
187 | } |
174 | 188 | ||
175 | void arch_post_smp_init(void) |
189 | void arch_post_smp_init(void) |
176 | { |
190 | { |
177 | devno_t devno = device_assign_devno(); |
191 | devno_t devno = device_assign_devno(); |
178 | /* keyboard controller */ |
192 | /* keyboard controller */ |
179 | (void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD); |
193 | (void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD); |
180 | 194 | ||
181 | /* |
195 | /* |
182 | * This is the necessary evil until the userspace driver is entirely |
196 | * This is the necessary evil until the userspace driver is entirely |
183 | * self-sufficient. |
197 | * self-sufficient. |
184 | */ |
198 | */ |
185 | sysinfo_set_item_val("kbd", NULL, true); |
199 | sysinfo_set_item_val("kbd", NULL, true); |
186 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
200 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
187 | sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD); |
201 | sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD); |
- | 202 | sysinfo_set_item_val("kbd.address.physical", NULL, |
|
- | 203 | (uintptr_t) I8042_BASE); |
|
- | 204 | sysinfo_set_item_val("kbd.address.kernel", NULL, |
|
- | 205 | (uintptr_t) I8042_BASE); |
|
188 | } |
206 | } |
189 | 207 | ||
190 | void calibrate_delay_loop(void) |
208 | void calibrate_delay_loop(void) |
191 | { |
209 | { |
192 | i8254_calibrate_delay_loop(); |
210 | i8254_calibrate_delay_loop(); |
193 | if (config.cpu_active == 1) { |
211 | if (config.cpu_active == 1) { |
194 | /* |
212 | /* |
195 | * This has to be done only on UP. |
213 | * This has to be done only on UP. |
196 | * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. |
214 | * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. |
197 | */ |
215 | */ |
198 | i8254_normal_operation(); |
216 | i8254_normal_operation(); |
199 | } |
217 | } |
200 | } |
218 | } |
201 | 219 | ||
202 | /** Set thread-local-storage pointer |
220 | /** Set thread-local-storage pointer |
203 | * |
221 | * |
204 | * TLS pointer is set in FS register. Unfortunately the 64-bit |
222 | * TLS pointer is set in FS register. Unfortunately the 64-bit |
205 | * part can be set only in CPL0 mode. |
223 | * part can be set only in CPL0 mode. |
206 | * |
224 | * |
207 | * The specs say, that on %fs:0 there is stored contents of %fs register, |
225 | * The specs say, that on %fs:0 there is stored contents of %fs register, |
208 | * we need not to go to CPL0 to read it. |
226 | * we need not to go to CPL0 to read it. |
209 | */ |
227 | */ |
210 | unative_t sys_tls_set(unative_t addr) |
228 | unative_t sys_tls_set(unative_t addr) |
211 | { |
229 | { |
212 | THREAD->arch.tls = addr; |
230 | THREAD->arch.tls = addr; |
213 | write_msr(AMD_MSR_FS, addr); |
231 | write_msr(AMD_MSR_FS, addr); |
214 | return 0; |
232 | return 0; |
215 | } |
233 | } |
216 | 234 | ||
217 | /** Acquire console back for kernel |
235 | /** Acquire console back for kernel |
218 | * |
236 | * |
219 | */ |
237 | */ |
220 | void arch_grab_console(void) |
238 | void arch_grab_console(void) |
221 | { |
239 | { |
222 | #ifdef CONFIG_FB |
240 | #ifdef CONFIG_FB |
223 | vesa_redraw(); |
241 | vesa_redraw(); |
224 | #else |
242 | #else |
225 | ega_redraw(); |
243 | ega_redraw(); |
226 | #endif |
244 | #endif |
227 | } |
245 | } |
228 | 246 | ||
229 | /** Return console to userspace |
247 | /** Return console to userspace |
230 | * |
248 | * |
231 | */ |
249 | */ |
232 | void arch_release_console(void) |
250 | void arch_release_console(void) |
233 | { |
251 | { |
234 | } |
252 | } |
235 | 253 | ||
236 | /** Construct function pointer |
254 | /** Construct function pointer |
237 | * |
255 | * |
238 | * @param fptr function pointer structure |
256 | * @param fptr function pointer structure |
239 | * @param addr function address |
257 | * @param addr function address |
240 | * @param caller calling function address |
258 | * @param caller calling function address |
241 | * |
259 | * |
242 | * @return address of the function pointer |
260 | * @return address of the function pointer |
243 | * |
261 | * |
244 | */ |
262 | */ |
245 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
263 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
246 | { |
264 | { |
247 | return addr; |
265 | return addr; |
248 | } |
266 | } |
249 | 267 | ||
250 | /** @} |
268 | /** @} |
251 | */ |
269 | */ |
252 | 270 |