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authorsommerfeld <sommerfeld@NetBSD.org>2001-05-27 13:53:24 +0000
committersommerfeld <sommerfeld@NetBSD.org>2001-05-27 13:53:24 +0000
commit4aaf078a4a9014f3abc372b589eb44ae609bd320 (patch)
treed539d09280487ca04dd4530d4454f0af29645280 /sys/arch/alpha/include
parent1bca7091cc16a4b881d61af9f4867feb716c4e32 (diff)
Assorted microtime fixes (similar to fixes I made yesterday when
porting this code to i386mp branch): - call microset() early on each cpu so that calls to microtime() before the first clock interrupt don't return trash. this manifested itself as garbage runtimes in "ps" for kernel threads. - avoid races between hardclock updating "time" and microset on a different cpu reading it by adding a "microset_time" global which is initialized from "time" on the primary cpu. - call microset every hz ticks, not every hz+1 (cosmetic)
Diffstat (limited to 'sys/arch/alpha/include')
-rw-r--r--sys/arch/alpha/include/cpu.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/arch/alpha/include/cpu.h b/sys/arch/alpha/include/cpu.h
index 63facd98a9c..cfe928fdece 100644
--- a/sys/arch/alpha/include/cpu.h
+++ b/sys/arch/alpha/include/cpu.h
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.h,v 1.56 2001/04/28 06:10:50 thorpej Exp $ */
+/* $NetBSD: cpu.h,v 1.57 2001/05/27 13:53:25 sommerfeld Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
@@ -280,6 +280,8 @@ struct reg;
struct rpb;
struct trapframe;
+extern struct timeval microset_time;
+
int badaddr(void *, size_t);
void microset(struct cpu_info *, struct trapframe *);