| 0,0 → 1,253 |
|---|
| /* |
| * Copyright (c) 2001-2004 Jakub Jermar |
| * Copyright (c) 2009 Jiri Svoboda |
| * Copyright (c) 2009 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup ia32 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch.h> |
| |
| #include <arch/types.h> |
| |
| #include <arch/pm.h> |
| |
| #include <genarch/multiboot/multiboot.h> |
| #include <genarch/drivers/legacy/ia32/io.h> |
| #include <genarch/drivers/ega/ega.h> |
| #include <arch/drivers/vesa.h> |
| #include <genarch/drivers/i8042/i8042.h> |
| #include <genarch/kbrd/kbrd.h> |
| #include <arch/drivers/i8254.h> |
| #include <arch/drivers/i8259.h> |
| |
| #include <arch/context.h> |
| |
| #include <config.h> |
| |
| #include <arch/interrupt.h> |
| #include <arch/asm.h> |
| #include <genarch/acpi/acpi.h> |
| |
| #include <arch/bios/bios.h> |
| |
| #include <interrupt.h> |
| #include <ddi/irq.h> |
| #include <arch/debugger.h> |
| #include <proc/thread.h> |
| #include <syscall/syscall.h> |
| #include <console/console.h> |
| #include <sysinfo/sysinfo.h> |
| #include <arch/boot/boot.h> |
| |
| #ifdef CONFIG_SMP |
| #include <arch/smp/apic.h> |
| #endif |
| |
| /** Perform ia32-specific initialization before main_bsp() is called. |
| * |
| * @param signature Should contain the multiboot signature. |
| * @param mi Pointer to the multiboot information structure. |
| */ |
| void arch_pre_main(uint32_t signature, const multiboot_info_t *mi) |
| { |
| /* Parse multiboot information obtained from the bootloader. */ |
| multiboot_info_parse(signature, mi); |
| |
| #ifdef CONFIG_SMP |
| /* Copy AP bootstrap routines below 1 MB. */ |
| memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET, |
| (size_t) &_hardcoded_unmapped_size); |
| #endif |
| } |
| |
| void arch_pre_mm_init(void) |
| { |
| pm_init(); |
| |
| if (config.cpu_active == 1) { |
| interrupt_init(); |
| bios_init(); |
| |
| /* PIC */ |
| i8259_init(); |
| } |
| } |
| |
| void arch_post_mm_init(void) |
| { |
| if (config.cpu_active == 1) { |
| /* Initialize IRQ routing */ |
| irq_init(IRQ_COUNT, IRQ_COUNT); |
| |
| /* hard clock */ |
| i8254_init(); |
| |
| #ifdef CONFIG_FB |
| if (vesa_present()) |
| vesa_init(); |
| else |
| #endif |
| #ifdef CONFIG_EGA |
| ega_init(EGA_BASE, EGA_VIDEORAM); /* video */ |
| #else |
| {} |
| #endif |
| |
| /* Enable debugger */ |
| debugger_init(); |
| /* Merge all memory zones to 1 big zone */ |
| zone_merge_all(); |
| } |
| } |
| |
| void arch_post_cpu_init() |
| { |
| #ifdef CONFIG_SMP |
| if (config.cpu_active > 1) { |
| l_apic_init(); |
| l_apic_debug(); |
| } |
| #endif |
| } |
| |
| void arch_pre_smp_init(void) |
| { |
| if (config.cpu_active == 1) { |
| #ifdef CONFIG_SMP |
| acpi_init(); |
| #endif /* CONFIG_SMP */ |
| } |
| } |
| |
| void arch_post_smp_init(void) |
| { |
| #ifdef CONFIG_PC_KBD |
| /* |
| * Initialize the i8042 controller. Then initialize the keyboard |
| * module and connect it to i8042. Enable keyboard interrupts. |
| */ |
| i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD); |
| if (i8042_instance) { |
| kbrd_instance_t *kbrd_instance = kbrd_init(); |
| if (kbrd_instance) { |
| indev_t *sink = stdin_wire(); |
| indev_t *kbrd = kbrd_wire(kbrd_instance, sink); |
| i8042_wire(i8042_instance, kbrd); |
| trap_virtual_enable_irqs(1 << IRQ_KBD); |
| } |
| } |
| |
| /* |
| * This is the necessary evil until the userspace driver is entirely |
| * self-sufficient. |
| */ |
| sysinfo_set_item_val("kbd", NULL, true); |
| sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD); |
| sysinfo_set_item_val("kbd.address.physical", NULL, |
| (uintptr_t) I8042_BASE); |
| sysinfo_set_item_val("kbd.address.kernel", NULL, |
| (uintptr_t) I8042_BASE); |
| #endif |
| } |
| |
| void calibrate_delay_loop(void) |
| { |
| i8254_calibrate_delay_loop(); |
| if (config.cpu_active == 1) { |
| /* |
| * This has to be done only on UP. |
| * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. |
| */ |
| i8254_normal_operation(); |
| } |
| } |
| |
| /** Set thread-local-storage pointer |
| * |
| * TLS pointer is set in GS register. That means, the GS contains |
| * selector, and the descriptor->base is the correct address. |
| */ |
| unative_t sys_tls_set(unative_t addr) |
| { |
| THREAD->arch.tls = addr; |
| set_tls_desc(addr); |
| |
| return 0; |
| } |
| |
| /** Acquire console back for kernel |
| * |
| */ |
| void arch_grab_console(void) |
| { |
| #ifdef CONFIG_FB |
| if (vesa_present()) |
| vesa_redraw(); |
| else |
| #endif |
| #ifdef CONFIG_EGA |
| ega_redraw(); |
| #else |
| {} |
| #endif |
| } |
| |
| /** Return console to userspace |
| * |
| */ |
| void arch_release_console(void) |
| { |
| } |
| |
| /** Construct function pointer |
| * |
| * @param fptr function pointer structure |
| * @param addr function address |
| * @param caller calling function address |
| * |
| * @return address of the function pointer |
| * |
| */ |
| void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
| { |
| return addr; |
| } |
| |
| void arch_reboot(void) |
| { |
| #ifdef CONFIG_PC_KBD |
| i8042_cpu_reset((i8042_t *) I8042_BASE); |
| #endif |
| } |
| |
| /** @} |
| */ |