Store in globaldata our CPU ID#. Provide a lock for panics - only one

CPU can panic at a time.
Obtained from:Andrew Gallatin <gallatin@cs.duke.edu>

3 files changed, 4 insertions, 0 deletions

diff --git a/sys/alpha/include/globaldata.h b/sys/alpha/include/globaldata.h
index 361ae09..5fd6c59 100644
--- a/sys/alpha/include/globaldata.h
+++ b/sys/alpha/include/globaldata.h
@@ -62,6 +62,7 @@ struct globaldata {
 	u_int		gd_astpending;
 	SLIST_ENTRY(globaldata) gd_allcpu;
 	int		gd_witness_spin_check;
+	u_int		gd_cpuid;
 #ifdef KTR_PERCPU
 	volatile int	gd_ktr_idx;		/* Index into trace table */
 	char		*gd_ktr_buf;
diff --git a/sys/alpha/include/lock.h b/sys/alpha/include/lock.h
index f2e3448..ebca861 100644
--- a/sys/alpha/include/lock.h
+++ b/sys/alpha/include/lock.h
@@ -55,6 +55,8 @@ s_unlock(struct simplelock *lkp)
 	lkp->lock_data = 0;
 }
 
+extern struct simplelock	panic_lock;
+
 #if !defined(SIMPLELOCK_DEBUG) && MAXCPU > 1
 /*
  * This set of defines turns on the real functions in i386/isa/apic_ipl.s.
diff --git a/sys/alpha/include/pcpu.h b/sys/alpha/include/pcpu.h
index 361ae09..5fd6c59 100644
--- a/sys/alpha/include/pcpu.h
+++ b/sys/alpha/include/pcpu.h
@@ -62,6 +62,7 @@ struct globaldata {
 	u_int		gd_astpending;
 	SLIST_ENTRY(globaldata) gd_allcpu;
 	int		gd_witness_spin_check;
+	u_int		gd_cpuid;
 #ifdef KTR_PERCPU
 	volatile int	gd_ktr_idx;		/* Index into trace table */
 	char		*gd_ktr_buf;