static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
{
struct kimage *image = arg;
relocate_new_kernel_t rnk;
void *pal_addr = efi_get_pal_addr();
unsigned long code_addr = (unsigned long)page_address(image->control_code_page);
unsigned long vector;
int ii;
u64 fp, gp;
ia64_fptr_t *init_handler = (ia64_fptr_t *)ia64_os_init_on_kdump;
BUG_ON(!image);
if (image->type == KEXEC_TYPE_CRASH) {
crash_save_this_cpu();
current->thread.ksp = (__u64)info->sw - 16;
/* Register noop init handler */
fp = ia64_tpa(init_handler->fp);
gp = ia64_tpa(ia64_getreg(_IA64_REG_GP));
ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, fp, gp, 0, fp, gp, 0);
} else {
/* Unregister init handlers of current kernel */
ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, 0, 0, 0, 0, 0, 0);
}
/* Unregister mca handler - No more recovery on current kernel */
ia64_sal_set_vectors(SAL_VECTOR_OS_MCA, 0, 0, 0, 0, 0, 0);
/* Interrupts aren't acceptable while we reboot */
local_irq_disable();
/* Mask CMC and Performance Monitor interrupts */
ia64_setreg(_IA64_REG_CR_PMV, 1 << 16);
ia64_setreg(_IA64_REG_CR_CMCV, 1 << 16);
/* Mask ITV and Local Redirect Registers */
ia64_set_itv(1 << 16);
ia64_set_lrr0(1 << 16);
ia64_set_lrr1(1 << 16);
/* terminate possible nested in-service interrupts */
for (ii = 0; ii < 16; ii++)
ia64_eoi();
/* unmask TPR and clear any pending interrupts */
ia64_setreg(_IA64_REG_CR_TPR, 0);
ia64_srlz_d();
vector = ia64_get_ivr();
while (vector != IA64_SPURIOUS_INT_VECTOR) {
ia64_eoi();
vector = ia64_get_ivr();
}
platform_kernel_launch_event();
rnk = (relocate_new_kernel_t)&code_addr;
(*rnk)(image->head, image->start, ia64_boot_param,
GRANULEROUNDDOWN((unsigned long) pal_addr));
BUG();
}
/*
* Assume that CPUs have been discovered by some platform-dependent interface. For
* SoftSDV/Lion, that would be ACPI.
*
* Setup of the IPI irq handler is done in irq.c:init_IRQ_SMP().
*/
void __init
init_smp_config(void)
{
struct fptr {
unsigned long fp;
unsigned long gp;
} *ap_startup;
long sal_ret;
/* Tell SAL where to drop the APs. */
ap_startup = (struct fptr *) start_ap;
sal_ret = ia64_sal_set_vectors(SAL_VECTOR_OS_BOOT_RENDEZ,
ia64_tpa(ap_startup->fp), ia64_tpa(ap_startup->gp), 0, 0, 0, 0);
if (sal_ret < 0)
printk(KERN_ERR "SMP: Can't set SAL AP Boot Rendezvous: %s\n",
ia64_sal_strerror(sal_ret));
}
/*
* Assume that CPU's have been discovered by some platform-dependant interface. For
* SoftSDV/Lion, that would be ACPI.
*
* Setup of the IPI irq handler is done in irq.c:init_IRQ_SMP().
*/
void __init
init_smp_config(void)
{
struct fptr {
unsigned long fp;
unsigned long gp;
} *ap_startup;
long sal_ret;
/* Tell SAL where to drop the AP's. */
ap_startup = (struct fptr *) start_ap;
sal_ret = ia64_sal_set_vectors(SAL_VECTOR_OS_BOOT_RENDEZ,
__pa(ap_startup->fp), __pa(ap_startup->gp), 0, 0, 0, 0);
if (sal_ret < 0) {
printk("SMP: Can't set SAL AP Boot Rendezvous: %s\n Forcing UP mode\n",
ia64_sal_strerror(sal_ret));
max_cpus = 0;
smp_num_cpus = 1;
}
}