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/*
* Copyright (C) 2001-2004 Jakub Jermar
* 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.
*/
#include <arch.h>
#include <arch/types.h>
#include <typedefs.h>
#include <arch/pm.h>
#include <arch/ega.h>
#include <arch/i8042.h>
#include <arch/i8254.h>
#include <arch/i8259.h>
#include <arch/context.h>
#include <config.h>
#include <arch/interrupt.h>
#include <arch/asm.h>
#include <arch/acpi/acpi.h>
void write_dr0(__u32 v)
{
__asm__("movl %0,%%dr0" : : "r" (v));
}
inline __u32 read_dr0(void)
{
__u32 v;
__asm__("movl %%dr0,%0\n" : "=r" (v));
return v;
}
void arch_pre_mm_init(void)
{
pm_init();
write_dr0(config.cpu_active - 1);
if (config.cpu_active == 1) {
bios_init();
i8042_init(); /* a20 bit */
i8259_init(); /* PIC */
i8254_init(); /* hard clock */
trap_register(VECTOR_SYSCALL, syscall);
#ifdef __SMP__
trap_register(VECTOR_TLB_SHOOTDOWN_IPI, tlb_shootdown_ipi);
trap_register(VECTOR_WAKEUP_IPI, wakeup_ipi);
#endif /* __SMP__ */
}
}
void arch_post_mm_init()
{
if (config.cpu_active == 1) {
ega_init(); /* video */
}
}
void arch_late_init()
{
if (config.cpu_active == 1) {
#ifdef __SMP__
acpi_init();
mp_init();
#endif /* __SMP__ */
}
}
void calibrate_delay_loop(void)
{
i8254_calibrate_delay_loop();
i8254_normal_operation();
}