/*
* 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/drivers/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/bootinfo.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();
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 got system prepared by hello, we are not able to start
* AP's. This means we are running on a 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) {
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) {
"ID:%d EID:%d timed out\n",
__FUNCTION__, id, eid);
}
}
}
#endif
/** @}
*/