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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 01:27:42 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 01:44:01 +0400
commiteb71c87a492b7090ff9e8ac46912c480a1687e38 (patch)
tree1136213dee0f942866b6c2c65de7e7c63ca94fda /include/asm-generic
parentd384ea691fe4ea8c2dd5b9b8d9042eb181776f18 (diff)
downloadlinux-eb71c87a492b7090ff9e8ac46912c480a1687e38.tar.xz
Add some basic resume trace facilities
Considering that there isn't a lot of hw we can depend on during resume, this is about as good as it gets. This is x86-only for now, although the basic concept (and most of the code) will certainly work on almost any platform. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/rtc.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
index cef08db34ada..4087037a4225 100644
--- a/include/asm-generic/rtc.h
+++ b/include/asm-generic/rtc.h
@@ -114,6 +114,7 @@ static inline unsigned int get_rtc_time(struct rtc_time *time)
/* Set the current date and time in the real time clock. */
static inline int set_rtc_time(struct rtc_time *time)
{
+ unsigned long flags;
unsigned char mon, day, hrs, min, sec;
unsigned char save_control, save_freq_select;
unsigned int yrs;
@@ -131,7 +132,7 @@ static inline int set_rtc_time(struct rtc_time *time)
if (yrs > 255) /* They are unsigned */
return -EINVAL;
- spin_lock_irq(&rtc_lock);
+ spin_lock_irqsave(&rtc_lock, flags);
#ifdef CONFIG_MACH_DECSTATION
real_yrs = yrs;
leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
@@ -152,7 +153,7 @@ static inline int set_rtc_time(struct rtc_time *time)
* whether the chip is in binary mode or not.
*/
if (yrs > 169) {
- spin_unlock_irq(&rtc_lock);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return -EINVAL;
}
@@ -187,7 +188,7 @@ static inline int set_rtc_time(struct rtc_time *time)
CMOS_WRITE(save_control, RTC_CONTROL);
CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
- spin_unlock_irq(&rtc_lock);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}