mach_mp_startup.c revision 982b91072930da051b05465dbd43c5ff024c96bc
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * CDDL HEADER START
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da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Use is subject to license terms.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#pragma ident "%Z%%M% %I% %E% SMI"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Useful for disabling MP bring-up for an MP capable kernel
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * (a kernel that was built with MP defined)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Init CPU info - get CPU type info for processor_info system call.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Get clock-frequency property from cpunodes[] for the CPU.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin pi->pi_clock = (cpunode->clock_freq + 500000) / 1000000;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin "%s (portid %d impl 0x%x ver 0x%x clock %d MHz)",
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin cpunode->implementation, cpunode->version, pi->pi_clock);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin cmn_err(CE_CONT, "?cpu%d: %s\n", cpuid, cp->cpu_idstr);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin cp->cpu_brandstr = kmem_alloc(strlen(cpunode->name) + 1, KM_SLEEP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * StarFire requires the signature block stuff setup here
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * cpu0 starts out running. Other cpus are
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * still in OBP land and we will leave them
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * alone for now.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin CPU_SIGNATURE(OS_SIG, SIGST_RUN, SIGSUBST_NULL, cpuid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif /* lint */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Routine used to cleanup a CPU that has been powered off. This will
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * destroy all per-cpu information related to this cpu.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin extern int cleanup_cpu_common(int);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin extern int get_portid_ddi(dev_info_t *, dev_info_t **);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin struct mp_find_cpu_arg *target = (struct mp_find_cpu_arg *)arg;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* Found it */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Routine used to setup a newly inserted CPU in preparation for starting
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * it running code.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin extern int setup_cpu_common(int);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Note: uses cpu_lock to protect cpunodes and ncpunodes
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * which will be modified inside of fill_cpu_ddi().
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * sun4v cpu setup may fail. sun4u assumes cpu setup to
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * be always successful, so the return value is ignored.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return (0);