Send an IPI in signotify() if the process runs on a different processor,

similar to the fix which went into i386 and amd64 a few weeks ago.

2 files changed, 17 insertions, 7 deletions

diff --git a/sys/arch/m88k/include/cpu.h b/sys/arch/m88k/include/cpu.h
index bcad10ecee2..317cc61704f 100644
--- a/sys/arch/m88k/include/cpu.h
+++ b/sys/arch/m88k/include/cpu.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.h,v 1.21 2007/05/14 17:00:38 miod Exp $ */
+/*	$OpenBSD: cpu.h,v 1.22 2007/05/19 20:34:32 miod Exp $ */
 /*
  * Copyright (c) 1996 Nivas Madhur
  * Copyright (c) 1992, 1993
@@ -229,11 +229,7 @@ do {									\
  */
 #define	need_proftick(p)	aston(p)
 
-/*
- * Notify the current process (p) that it has a signal pending,
- * process as soon as possible.
- */
-#define	signotify(p)		aston(p)
+void	signotify(struct proc *);
 
 /*
  * switchframe - should be double word aligned.
diff --git a/sys/arch/m88k/m88k/m88k_machdep.c b/sys/arch/m88k/m88k/m88k_machdep.c
index 9d7bee8e833..dc9a0643d9a 100644
--- a/sys/arch/m88k/m88k/m88k_machdep.c
+++ b/sys/arch/m88k/m88k/m88k_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: m88k_machdep.c,v 1.19 2007/05/18 16:35:02 miod Exp $	*/
+/*	$OpenBSD: m88k_machdep.c,v 1.20 2007/05/19 20:34:34 miod Exp $	*/
 /*
  * Copyright (c) 1998, 1999, 2000, 2001 Steve Murphree, Jr.
  * Copyright (c) 1996 Nivas Madhur
@@ -350,6 +350,20 @@ set_cpu_number(cpuid_t number)
 }
 
 /*
+ * Notify the current process (p) that it has a signal pending,
+ * process as soon as possible.
+ */
+void
+signotify(struct proc *p)
+{
+	aston(p);
+#ifdef MULTIPROCESSOR
+	if (p->p_cpu != curcpu() && p->p_cpu != NULL)
+		m88k_send_ipi(CI_IPI_NOTIFY, p->p_cpu->ci_cpuid);
+#endif
+}
+
+/*
  * Soft interrupt interface
  */