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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/cpuvar.h>
#include <sys/kdi_impl.h>
#include <sys/reboot.h>
#include <sys/errno.h>
#include <sys/atomic.h>
#include <sys/kmem.h>
kdi_debugvec_t *kdi_dvec;
struct modctl *kdi_dmods;
static kdi_dtrace_state_t kdi_dtrace_state = KDI_DTSTATE_IDLE;
void
kdi_dvec_vmready(void)
{
kdi_dvec->dv_kctl_vmready();
kdi_dvec->dv_vmready();
}
void
kdi_dvec_memavail(void)
{
/*
* The driver will allocate more memory (if requested), and will call
* dv_memavail itself.
*/
kdi_dvec->dv_kctl_memavail();
}
#if defined(__x86)
void
kdi_dvec_handle_fault(greg_t trapno, greg_t pc, greg_t sp, int cpuid)
{
kdi_dvec->dv_handle_fault(trapno, pc, sp, cpuid);
}
#endif
#if defined(__sparc)
/*
* Called on the CPU being initialized
*/
void
kdi_dvec_cpu_init(struct cpu *cp)
{
kdi_dvec->dv_kctl_cpu_init();
kdi_dvec->dv_cpu_init(cp);
}
void
kdi_dvec_cpr_restart(void)
{
kdi_dvec->dv_kctl_cpu_init();
kdi_dvec->dv_cpr_restart();
}
#endif /* __sparc */
void
kdi_dvec_modavail(void)
{
kdi_dvec->dv_kctl_modavail();
}
void
kdi_dvec_thravail(void)
{
kdi_dvec->dv_kctl_thravail();
}
void
kdi_dvec_mod_loaded(struct modctl *modp)
{
kdi_dvec->dv_mod_loaded(modp);
}
void
kdi_dvec_mod_unloading(struct modctl *modp)
{
kdi_dvec->dv_mod_unloading(modp);
}
kdi_dtrace_state_t
kdi_dtrace_get_state(void)
{
return (kdi_dtrace_state);
}
int
kdi_dtrace_set(kdi_dtrace_set_t transition)
{
kdi_dtrace_state_t new, cur;
do {
cur = kdi_dtrace_state;
switch (transition) {
case KDI_DTSET_DTRACE_ACTIVATE:
if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE)
return (EBUSY);
if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
return (0);
new = KDI_DTSTATE_DTRACE_ACTIVE;
break;
case KDI_DTSET_DTRACE_DEACTIVATE:
if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE)
return (EBUSY);
if (cur == KDI_DTSTATE_IDLE)
return (0);
new = KDI_DTSTATE_IDLE;
break;
case KDI_DTSET_KMDB_BPT_ACTIVATE:
if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
return (EBUSY);
if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE)
return (0);
new = KDI_DTSTATE_KMDB_BPT_ACTIVE;
break;
case KDI_DTSET_KMDB_BPT_DEACTIVATE:
if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
return (EBUSY);
if (cur == KDI_DTSTATE_IDLE)
return (0);
new = KDI_DTSTATE_IDLE;
break;
default:
return (EINVAL);
}
} while (cas32((uint_t *)&kdi_dtrace_state, cur, new) != cur);
return (0);
}
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