Module Name: src
Committed By: matt
Date: Mon Feb 27 15:50:49 UTC 2012
Modified Files:
src/sys/arch/vax/include: cpu.h
Log Message:
Change cpu_idle to be an inline which sets IPL to 1 and then back to 0
so simh can recognize the kernel is idle.
To generate a diff of this commit:
cvs rdiff -u -r1.93 -r1.94 src/sys/arch/vax/include/cpu.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/vax/include/cpu.h
diff -u src/sys/arch/vax/include/cpu.h:1.93 src/sys/arch/vax/include/cpu.h:1.94
--- src/sys/arch/vax/include/cpu.h:1.93 Sun Jun 5 16:59:21 2011
+++ src/sys/arch/vax/include/cpu.h Mon Feb 27 15:50:48 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.h,v 1.93 2011/06/05 16:59:21 matt Exp $ */
+/* $NetBSD: cpu.h,v 1.94 2012/02/27 15:50:48 matt Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden
@@ -162,7 +162,18 @@ extern int cpu_printfataltraps;
mtpr(AST_OK,PR_ASTLVL); \
} while (/*CONSTCOND*/ 0)
#define cpu_proc_fork(x, y) do { } while (/*CONSCOND*/0)
-#define cpu_idle() do { } while (/*CONSCOND*/0)
+
+/*
+ * This allows SIMH to recognize the kernel wants to sleep.
+ */
+static inline void
+cpu_idle(void)
+{
+ int ipl = mfpr(PR_IPL);
+ mtpr(1, PR_IPL);
+ mtpr(ipl, PR_IPL);
+}
+
static inline bool
cpu_intr_p(void)
{
