Subversion Repositories HelenOS

Rev

Rev 4377 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
206 palkovsky 1
/*
2071 jermar 2
 * Copyright (c) 2005 Ondrej Palkovsky
206 palkovsky 3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
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
15
 *   derived from this software without specific prior written permission.
16
 *
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
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1842 jermar 29
/** @addtogroup amd64
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
206 palkovsky 35
#include <arch.h>
36
 
37
#include <arch/types.h>
38
 
39
#include <config.h>
40
 
1112 palkovsky 41
#include <proc/thread.h>
4377 svoboda 42
#include <genarch/multiboot/multiboot.h>
43
#include <genarch/drivers/legacy/ia32/io.h>
44
#include <genarch/drivers/ega/ega.h>
1477 decky 45
#include <arch/drivers/vesa.h>
4377 svoboda 46
#include <genarch/drivers/i8042/i8042.h>
47
#include <genarch/kbrd/kbrd.h>
1477 decky 48
#include <arch/drivers/i8254.h>
49
#include <arch/drivers/i8259.h>
4377 svoboda 50
#include <arch/boot/boot.h>
206 palkovsky 51
 
1901 jermar 52
#ifdef CONFIG_SMP
53
#include <arch/smp/apic.h>
54
#endif
55
 
206 palkovsky 56
#include <arch/bios/bios.h>
251 palkovsky 57
#include <arch/cpu.h>
58
#include <print.h>
59
#include <arch/cpuid.h>
452 decky 60
#include <genarch/acpi/acpi.h>
282 palkovsky 61
#include <panic.h>
576 palkovsky 62
#include <interrupt.h>
803 palkovsky 63
#include <arch/syscall.h>
1072 palkovsky 64
#include <arch/debugger.h>
4391 svoboda 65
#include <arch/breakpoint.h>
1112 palkovsky 66
#include <syscall/syscall.h>
1474 palkovsky 67
#include <console/console.h>
1958 decky 68
#include <ddi/irq.h>
4377 svoboda 69
#include <sysinfo/sysinfo.h>
206 palkovsky 70
 
799 palkovsky 71
/** Disable I/O on non-privileged levels
72
 *
73
 * Clean IOPL(12,13) and NT(14) flags in EFLAGS register
74
 */
75
static void clean_IOPL_NT_flags(void)
76
{
4377 svoboda 77
    asm volatile (
2697 decky 78
        "pushfq\n"
79
        "pop %%rax\n"
80
        "and $~(0x7000), %%rax\n"
81
        "pushq %%rax\n"
82
        "popfq\n"
4377 svoboda 83
        ::: "%rax"
799 palkovsky 84
    );
85
}
86
 
87
/** Disable alignment check
88
 *
89
 * Clean AM(18) flag in CR0 register
90
 */
91
static void clean_AM_flag(void)
92
{
4377 svoboda 93
    asm volatile (
2697 decky 94
        "mov %%cr0, %%rax\n"
95
        "and $~(0x40000), %%rax\n"
96
        "mov %%rax, %%cr0\n"
4377 svoboda 97
        ::: "%rax"
799 palkovsky 98
    );
99
}
100
 
4377 svoboda 101
/** Perform amd64-specific initialization before main_bsp() is called.
102
 *
103
 * @param signature Should contain the multiboot signature.
104
 * @param mi        Pointer to the multiboot information structure.
105
 */
106
void arch_pre_main(uint32_t signature, const multiboot_info_t *mi)
107
{
108
    /* Parse multiboot information obtained from the bootloader. */
109
    multiboot_info_parse(signature, mi);
110
 
111
#ifdef CONFIG_SMP
112
    /* Copy AP bootstrap routines below 1 MB. */
113
    memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET,
114
        (size_t) &_hardcoded_unmapped_size);
115
#endif
116
}
117
 
206 palkovsky 118
void arch_pre_mm_init(void)
119
{
2692 decky 120
    /* Enable no-execute pages */
251 palkovsky 121
    set_efer_flag(AMD_NXE_FLAG);
282 palkovsky 122
    /* Enable FPU */
123
    cpu_setup_fpu();
803 palkovsky 124
 
799 palkovsky 125
    /* Initialize segmentation */
206 palkovsky 126
    pm_init();
2692 decky 127
 
128
    /* Disable I/O on nonprivileged levels
129
     * clear the NT (nested-thread) flag
799 palkovsky 130
     */
131
    clean_IOPL_NT_flags();
132
    /* Disable alignment check */
133
    clean_AM_flag();
134
 
206 palkovsky 135
    if (config.cpu_active == 1) {
1958 decky 136
        interrupt_init();
206 palkovsky 137
        bios_init();
1958 decky 138
 
139
        /* PIC */
140
        i8259_init();
206 palkovsky 141
    }
142
}
143
 
2697 decky 144
 
206 palkovsky 145
void arch_post_mm_init(void)
146
{
147
    if (config.cpu_active == 1) {
1958 decky 148
        /* Initialize IRQ routing */
149
        irq_init(IRQ_COUNT, IRQ_COUNT);
150
 
151
        /* hard clock */
152
        i8254_init();
4377 svoboda 153
 
1289 vana 154
#ifdef CONFIG_FB
1303 palkovsky 155
        if (vesa_present())
156
            vesa_init();
157
        else
1289 vana 158
#endif
4377 svoboda 159
#ifdef CONFIG_EGA
160
            ega_init(EGA_BASE, EGA_VIDEORAM);  /* video */
161
#else
162
            {}
163
#endif
1958 decky 164
 
1072 palkovsky 165
        /* Enable debugger */
166
        debugger_init();
4391 svoboda 167
//#ifdef CONFIG_UDEBUG
168
        /* Enable INT3 breakpoint handler */
169
        breakpoint_init();
170
//#endif
1303 palkovsky 171
        /* Merge all memory zones to 1 big zone */
172
        zone_merge_all();
206 palkovsky 173
    }
2697 decky 174
 
803 palkovsky 175
    /* Setup fast SYSCALL/SYSRET */
176
    syscall_setup_cpu();
206 palkovsky 177
}
242 palkovsky 178
 
1901 jermar 179
void arch_post_cpu_init()
180
{
181
#ifdef CONFIG_SMP
182
    if (config.cpu_active > 1) {
183
        l_apic_init();
184
        l_apic_debug();
185
    }
186
#endif
187
}
188
 
503 jermar 189
void arch_pre_smp_init(void)
242 palkovsky 190
{
191
    if (config.cpu_active == 1) {
2723 decky 192
#ifdef CONFIG_SMP
242 palkovsky 193
        acpi_init();
2723 decky 194
#endif /* CONFIG_SMP */
242 palkovsky 195
    }
196
}
197
 
503 jermar 198
void arch_post_smp_init(void)
199
{
4377 svoboda 200
#ifdef CONFIG_PC_KBD
201
    /*
202
     * Initialize the i8042 controller. Then initialize the keyboard
203
     * module and connect it to i8042. Enable keyboard interrupts.
204
     */
205
    i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
206
    if (i8042_instance) {
207
        kbrd_instance_t *kbrd_instance = kbrd_init();
208
        if (kbrd_instance) {
209
            indev_t *sink = stdin_wire();
210
            indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
211
            i8042_wire(i8042_instance, kbrd);
212
            trap_virtual_enable_irqs(1 << IRQ_KBD);
213
        }
214
    }
215
 
216
    /*
217
     * This is the necessary evil until the userspace driver is entirely
218
     * self-sufficient.
219
     */
220
    sysinfo_set_item_val("kbd", NULL, true);
221
    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
222
    sysinfo_set_item_val("kbd.address.physical", NULL,
223
        (uintptr_t) I8042_BASE);
224
    sysinfo_set_item_val("kbd.address.kernel", NULL,
225
        (uintptr_t) I8042_BASE);
226
#endif
503 jermar 227
}
228
 
242 palkovsky 229
void calibrate_delay_loop(void)
230
{
231
    i8254_calibrate_delay_loop();
1958 decky 232
    if (config.cpu_active == 1) {
233
        /*
234
         * This has to be done only on UP.
235
         * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
236
         */
237
        i8254_normal_operation();
238
    }
242 palkovsky 239
}
1112 palkovsky 240
 
1121 jermar 241
/** Set thread-local-storage pointer
1112 palkovsky 242
 *
243
 * TLS pointer is set in FS register. Unfortunately the 64-bit
244
 * part can be set only in CPL0 mode.
245
 *
1121 jermar 246
 * The specs say, that on %fs:0 there is stored contents of %fs register,
1112 palkovsky 247
 * we need not to go to CPL0 to read it.
248
 */
1780 jermar 249
unative_t sys_tls_set(unative_t addr)
1112 palkovsky 250
{
1184 jermar 251
    THREAD->arch.tls = addr;
1112 palkovsky 252
    write_msr(AMD_MSR_FS, addr);
253
    return 0;
254
}
1474 palkovsky 255
 
256
/** Acquire console back for kernel
257
 *
258
 */
259
void arch_grab_console(void)
260
{
4377 svoboda 261
#ifdef CONFIG_FB
262
    if (vesa_present())
263
        vesa_redraw();
264
    else
265
#endif
266
#ifdef CONFIG_EGA
267
        ega_redraw();
268
#else
269
        {}
270
#endif
1474 palkovsky 271
}
4377 svoboda 272
 
1474 palkovsky 273
/** Return console to userspace
274
 *
275
 */
276
void arch_release_console(void)
277
{
278
}
1702 cejka 279
 
4377 svoboda 280
/** Construct function pointer
281
 *
282
 * @param fptr   function pointer structure
283
 * @param addr   function address
284
 * @param caller calling function address
285
 *
286
 * @return address of the function pointer
287
 *
288
 */
289
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
290
{
291
    return addr;
292
}
293
 
294
void arch_reboot(void)
295
{
296
#ifdef CONFIG_PC_KBD
297
    i8042_cpu_reset((i8042_t *) I8042_BASE);
298
#endif
299
}
300
 
1842 jermar 301
/** @}
1702 cejka 302
 */