NAME
cpu_configure —
machine-dependent device
autoconfiguration
SYNOPSIS
#include
<sys/systm.h>
void
cpu_configure(void);
DESCRIPTION
The machine-dependentcpu_configure()
is called during system bootstrap to perform the machine-dependent portion of
device autoconfiguration. It sets the configuration machinery in motion by
finding the root bus (“mainbus”). When this function returns,
interrupts must be enabled.
The following tasks are performed by
cpu_configure():
- initialize soft interrupts (see softint(9));
- initialize CPU interrupts and SPLs (see spl(9));
- call
config_rootfound() for “mainbus”; and - complete any initialization deferred from cpu_startup(9).