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/*

 * Copyright (c) 2005 Jakub Vana

 * 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>

#ifdef CONFIG_SMP

extern char cpu_by_id_eid_list[256][256];

static void sapic_init(void)

{

    bootinfo->sapic=(unative_t *)(PA2KA((unative_t)(bootinfo->sapic))|FW_OFFSET);

}

static void ipi_broadcast_arch_all(int ipi )

{

    int id,eid;

    int myid,myeid;

    myid=ia64_get_cpu_id();

    myeid=ia64_get_cpu_eid();

    for(id=0;id<256;id++)

        for(eid=0;eid<256;eid++)

            if((id!=myid) || (eid!=myeid))

                ipi_send_ipi(id,eid,ipi);

}

void ipi_broadcast_arch(int ipi )

{

    int id,eid;

    int myid,myeid;

    myid=ia64_get_cpu_id();

    myeid=ia64_get_cpu_eid();

    //printf("Sending ipi %d on %d\n",ipi,CPU->id);

    for(id=0;id<256;id++)

        for(eid=0;eid<256;eid++)

            if((id!=myid) || (eid!=myeid))

                if(cpu_by_id_eid_list[id][eid])

                    ipi_send_ipi(id,eid,ipi);

}

void smp_init(void)

{

    if(!bootinfo->hello_configured) return;

    //If we have not system prepared by hello, we are not able to start AP's

    //this means we are running on simulator

    sapic_init();

    ipi_broadcast_arch_all(bootinfo->wakeup_intno);

    volatile long long brk;

        for(brk=0;brk<100LL*1024LL*1024LL;brk++); //wait a while before CPUs starts

    config.cpu_count=0;

    int id,eid;

    for(id=0;id<256;id++)

        for(eid=0;eid<256;eid++)

                if(cpu_by_id_eid_list[id][eid]==1){

                    config.cpu_count++;

                    cpu_by_id_eid_list[id][eid]=2;

            }

}

void kmp(void *arg __attribute__((unused)))

{

    int id,eid;

    int myid,myeid;

    myid=ia64_get_cpu_id();

    myeid=ia64_get_cpu_eid();

    for(id=0;id<256;id++)

        for(eid=0;eid<256;eid++)

                if((id!=myid) || (eid!=myeid))

                    if(cpu_by_id_eid_list[id][eid]!=0){

                        if(cpu_by_id_eid_list[id][eid]==1){

                            //config.cpu_count++;

                            //cpu_by_id_eid_list[id][eid]=2;

                            printf("Found Late CPU ID:%d EDI:%d Not added to system!!!\n",id,eid);

                            continue;

                            }

                    cpu_by_id_eid_list[id][eid]=3;

                    /*

                     * There may be just one AP being initialized at

                     * the time. After it comes completely up, it is

                     * supposed to wake us up.

                     */

                    if (waitq_sleep_timeout(&ap_completion_wq, 1000000,

                        SYNCH_FLAGS_NONE) == ESYNCH_TIMEOUT) {

                        printf("%s: waiting for cpu ID:%d EID:%d"

                            "timed out\n", __FUNCTION__,

                            id, eid);

                        }    

                }

}

#endif

/*This is just a hack for linking with assembler - may be removed in future*/

#ifndef CONFIG_SMP

void main_ap(void);

void main_ap(void)

{

    while(1);

}

#endif

/** @}

 */