Module Name: src
Committed By: jmcneill
Date: Thu Dec 15 00:40:03 UTC 2011
Modified Files:
src/sys/arch/usermode/dev: cpu.c
src/sys/arch/usermode/include: thunk.h
src/sys/arch/usermode/usermode: thunk.c
Log Message:
implement cpu idle via sigsuspend
To generate a diff of this commit:
cvs rdiff -u -r1.52 -r1.53 src/sys/arch/usermode/dev/cpu.c
cvs rdiff -u -r1.37 -r1.38 src/sys/arch/usermode/include/thunk.h
cvs rdiff -u -r1.43 -r1.44 src/sys/arch/usermode/usermode/thunk.c
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/usermode/dev/cpu.c
diff -u src/sys/arch/usermode/dev/cpu.c:1.52 src/sys/arch/usermode/dev/cpu.c:1.53
--- src/sys/arch/usermode/dev/cpu.c:1.52 Wed Dec 14 12:29:59 2011
+++ src/sys/arch/usermode/dev/cpu.c Thu Dec 15 00:40:03 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.c,v 1.52 2011/12/14 12:29:59 jmcneill Exp $ */
+/* $NetBSD: cpu.c,v 1.53 2011/12/15 00:40:03 jmcneill Exp $ */
/*-
* Copyright (c) 2007 Jared D. McNeill <jmcne...@invisible.ca>
@@ -30,7 +30,7 @@
#include "opt_hz.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.52 2011/12/14 12:29:59 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.53 2011/12/15 00:40:03 jmcneill Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@@ -247,9 +247,7 @@ cpu_idle(void)
if (ci->ci_want_resched)
return;
-#if notyet
- thunk_usleep(10000);
-#endif
+ thunk_idle();
}
void
Index: src/sys/arch/usermode/include/thunk.h
diff -u src/sys/arch/usermode/include/thunk.h:1.37 src/sys/arch/usermode/include/thunk.h:1.38
--- src/sys/arch/usermode/include/thunk.h:1.37 Mon Dec 12 16:39:16 2011
+++ src/sys/arch/usermode/include/thunk.h Thu Dec 15 00:40:03 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: thunk.h,v 1.37 2011/12/12 16:39:16 jmcneill Exp $ */
+/* $NetBSD: thunk.h,v 1.38 2011/12/15 00:40:03 jmcneill Exp $ */
/*-
* Copyright (c) 2011 Jared D. McNeill <jmcne...@invisible.ca>
@@ -130,6 +130,8 @@ int thunk_munmap(void *addr, size_t len)
int thunk_mprotect(void *addr, size_t len, int prot);
int thunk_posix_memalign(void **, size_t, size_t);
+int thunk_idle(void);
+
char * thunk_getenv(const char *);
vaddr_t thunk_get_vm_min_address(void);
Index: src/sys/arch/usermode/usermode/thunk.c
diff -u src/sys/arch/usermode/usermode/thunk.c:1.43 src/sys/arch/usermode/usermode/thunk.c:1.44
--- src/sys/arch/usermode/usermode/thunk.c:1.43 Tue Dec 13 22:22:08 2011
+++ src/sys/arch/usermode/usermode/thunk.c Thu Dec 15 00:40:03 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: thunk.c,v 1.43 2011/12/13 22:22:08 jmcneill Exp $ */
+/* $NetBSD: thunk.c,v 1.44 2011/12/15 00:40:03 jmcneill Exp $ */
/*-
* Copyright (c) 2011 Jared D. McNeill <jmcne...@invisible.ca>
@@ -28,7 +28,7 @@
#include <sys/cdefs.h>
#ifdef __NetBSD__
-__RCSID("$NetBSD: thunk.c,v 1.43 2011/12/13 22:22:08 jmcneill Exp $");
+__RCSID("$NetBSD: thunk.c,v 1.44 2011/12/15 00:40:03 jmcneill Exp $");
#endif
#include <sys/types.h>
@@ -41,6 +41,7 @@ __RCSID("$NetBSD: thunk.c,v 1.43 2011/12
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
+#include <sched.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
@@ -586,3 +587,12 @@ thunk_get_vm_min_address(void)
return VM_MIN_ADDRESS;
}
+int
+thunk_idle(void)
+{
+ sigset_t sigmask;
+
+ sigemptyset(&sigmask);
+
+ return sigsuspend(&sigmask);
+}
