From 6937ca29dca3206c25908a732b154c7d10dab0b8 Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Mon, 13 Aug 2001 22:41:15 +0000
Subject: [PATCH] Remove IPI_HALT to make way for a more correct fix for halts
 and restarts on SMP alphas.

---
 sys/alpha/alpha/machdep.c    |  8 --------
 sys/alpha/alpha/mp_machdep.c |  3 ---
 sys/alpha/alpha/vm_machdep.c | 11 -----------
 sys/alpha/include/smp.h      |  1 -
 4 files changed, 23 deletions(-)

diff --git a/sys/alpha/alpha/machdep.c b/sys/alpha/alpha/machdep.c
index 490ea29c838..8123ec29ed2 100644
--- a/sys/alpha/alpha/machdep.c
+++ b/sys/alpha/alpha/machdep.c
@@ -1619,14 +1619,6 @@ cpu_boot(int howto)
 void
 cpu_halt(void)
 {
-#ifdef	SMP
-	printf("sending IPI_HALT to other processors\n");
-	DELAY(1000000);
-	ipi_all_but_self(IPI_HALT);
-	DELAY(1000000);
-	printf("Halting Self\n");
-	DELAY(1000000);
-#endif
 	prom_halt(1);
 }
 
diff --git a/sys/alpha/alpha/mp_machdep.c b/sys/alpha/alpha/mp_machdep.c
index eba0725280d..205dd970e94 100644
--- a/sys/alpha/alpha/mp_machdep.c
+++ b/sys/alpha/alpha/mp_machdep.c
@@ -476,9 +476,6 @@ smp_handle_ipi(struct trapframe *frame)
 			atomic_clear_int(&started_cpus, cpumask);
 			atomic_clear_int(&stopped_cpus, cpumask);
 			break;
-		case IPI_HALT:
-			prom_halt(1);
-			/* NOTREACHED */
 		}
 	}
 
diff --git a/sys/alpha/alpha/vm_machdep.c b/sys/alpha/alpha/vm_machdep.c
index 87b03358fd9..195a9349f1a 100644
--- a/sys/alpha/alpha/vm_machdep.c
+++ b/sys/alpha/alpha/vm_machdep.c
@@ -95,9 +95,6 @@
 #include <vm/vm_extern.h>
 
 #include <sys/user.h>
-#ifdef	SMP
-#include <machine/smp.h>
-#endif
 
 /*
  * quick version of vm_fault
@@ -391,14 +388,6 @@ vunmapbuf(bp)
 void
 cpu_reset()
 {
-#ifdef	SMP
-	printf("sending IPI_HALT to other processors\n");
-	DELAY(1000000);
-	ipi_all_but_self(IPI_HALT);
-	DELAY(1000000);
-	printf("Rebooting Self\n");
-	DELAY(1000000);
-#endif
 	prom_halt(0);
 }
 
diff --git a/sys/alpha/include/smp.h b/sys/alpha/include/smp.h
index 981647b8199..05af7f47e1b 100644
--- a/sys/alpha/include/smp.h
+++ b/sys/alpha/include/smp.h
@@ -23,7 +23,6 @@
 #define	IPI_AST			0x0004
 #define	IPI_CHECKSTATE		0x0008
 #define	IPI_STOP		0x0010
-#define	IPI_HALT		0x1000
 
 #ifndef LOCORE