/*
* Copyright (c) 2005 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.
*/
/** @addtogroup ia64
* @{
*/
/** @file
*/
#include <arch.h>
#include <arch/ski/ski.h>
#include <arch/drivers/it.h>
#include <arch/interrupt.h>
#include <arch/barrier.h>
#include <arch/asm.h>
#include <arch/register.h>
#include <arch/types.h>
#include <arch/context.h>
#include <arch/stack.h>
#include <arch/mm/page.h>
#include <mm/as.h>
#include <config.h>
#include <userspace.h>
#include <console/console.h>
#include <proc/uarg.h>
#include <syscall/syscall.h>
#include <ddi/irq.h>
#include <ddi/device.h>
#include <arch/drivers/ega.h>
#include <arch/bootinfo.h>
#include <genarch/kbd/i8042.h>
#include <genarch/kbd/ns16550.h>
#include <smp/smp.h>
#include <smp/ipi.h>
#include <arch/atomic.h>
#include <panic.h>
#include <print.h>
#include <sysinfo/sysinfo.h>
/*NS16550 as a COM 1*/
#define NS16550_IRQ (4+LAGACY_INTERRUPT_BASE)
#define NS16550_PORT 0x3f8
bootinfo_t *bootinfo;
static uint64_t iosapic_base=0xfec00000;
void arch_pre_main(void)
{
/* Setup usermode init tasks. */
unsigned int i;
init.cnt = bootinfo->taskmap.count;
for (i = 0; i < init.cnt; i++) {
init.tasks[i].addr = ((unsigned long) bootinfo->taskmap.tasks[i].addr) | VRN_MASK;
init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
}
}
void arch_pre_mm_init(void)
{
/* Set Interruption Vector Address (i.e. location of interruption vector table). */
iva_write((uintptr_t) &ivt);
srlz_d();
}
static void iosapic_init(void)
{
uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base))|FW_OFFSET;
int i;
int myid,myeid;
myid=ia64_get_cpu_id();
myeid=ia64_get_cpu_eid();
for(i=0;i<16;i++)
{
if(i==2) continue; //Disable Cascade interrupt
((uint32_t*)(IOSAPIC+0x00))[0]=0x10+2*i;
srlz_d();
((uint32_t*)(IOSAPIC+0x10))[0]=LAGACY_INTERRUPT_BASE+i;
srlz_d();
((uint32_t*)(IOSAPIC+0x00))[0]=0x10+2*i+1;
srlz_d();
((uint32_t*)(IOSAPIC+0x10))[0]=myid<<(56-32) | myeid<<(48-32);
srlz_d();
}
}
void arch_post_mm_init(void)
{
if(config.cpu_active==1)
{
iosapic_init();
irq_init(INR_COUNT, INR_COUNT);
#ifdef SKI
ski_init_console();
#else
ega_init();
#endif
}
it_init();
}
void arch_post_cpu_init(void)
{
}
void arch_pre_smp_init(void)
{
}
#ifdef I460GX
#define POLL_INTERVAL 50000 /* 50 ms */
/** Kernel thread for polling keyboard. */
static void i8042_kkbdpoll(void *arg)
{
while (1) {
#ifdef CONFIG_NS16550
#ifndef CONFIG_NS16550_INTERRUPT_DRIVEN
ns16550_poll();
#endif
#else
#ifndef CONFIG_I8042_INTERRUPT_DRIVEN
i8042_poll();
#endif
#endif
thread_usleep(POLL_INTERVAL);
}
}
#endif
void end_of_irq_void(void *cir_arg __attribute__((unused)),inr_t inr __attribute__((unused)));
void end_of_irq_void(void *cir_arg __attribute__((unused)),inr_t inr __attribute__((unused)))
{
return;
}
void arch_post_smp_init(void)
{
{
/*
* Create thread that polls keyboard.
*/
#ifdef SKI
thread_t *t;
t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
if (!t)
panic("cannot create kkbdpoll\n");
thread_ready(t);
#endif
#ifdef I460GX
devno_t kbd = device_assign_devno();
/* keyboard controller */
#ifdef CONFIG_NS16550
ns16550_init(kbd, NS16550_PORT, NS16550_IRQ,end_of_irq_void,NULL); // as a COM 1
#else
devno_t mouse = device_assign_devno();
i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE);
#endif
thread_t *t;
t = thread_create(i8042_kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
if (!t)
panic("cannot create kkbdpoll\n");
thread_ready(t);
#endif
}
sysinfo_set_item_val("ia64_iospace", NULL, true);
sysinfo_set_item_val("ia64_iospace.address", NULL, true);
sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
}
/** Enter userspace and never return. */
void userspace(uspace_arg_t *kernel_uarg)
{
psr_t psr;
rsc_t rsc;
psr.value = psr_read();
psr.cpl = PL_USER;
psr.i = true; /* start with interrupts enabled */
psr.ic = true;
psr.ri = 0; /* start with instruction #0 */
psr.bn = 1; /* start in bank 0 */
asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
rsc.loadrs = 0;
rsc.be = false;
rsc.pl = PL_USER;
rsc.mode = 3; /* eager mode */
switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
(uintptr_t) kernel_uarg->uspace_uarg,
psr.value, rsc.value);
while (1) {
;
}
}
/** Set thread-local-storage pointer.
*
* We use r13 (a.k.a. tp) for this purpose.
*/
unative_t sys_tls_set(unative_t addr)
{
return 0;
}
/** Acquire console back for kernel
*
*/
void arch_grab_console(void)
{
#ifdef SKI
ski_kbd_grab();
#else
#ifdef CONFIG_NS16550
ns16550_grab();
#else
i8042_grab();
#endif
#endif
}
/** Return console to userspace
*
*/
void arch_release_console(void)
{
#ifdef SKI
ski_kbd_release();
#else
#ifdef CONFIG_NS16550
ns16550_release();
#else
i8042_release();
#endif
#endif
}
void arch_reboot(void)
{
outb(0x64,0xfe);
while (1);
}
/** @}
*/