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x86: PM_TRACE support

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Signed-off-by: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nigel Cunningham
2007-07-21 17:10:41 +02:00
committed by Linus Torvalds
parent 9ef231a436
commit 44bf4cea43
6 changed files with 43 additions and 16 deletions
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19
include/linux/resume-trace.h
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@ -2,6 +2,7 @@
#define RESUME_TRACE_H
#ifdef CONFIG_PM_TRACE
#include <asm/resume-trace.h>
extern int pm_trace_enabled;
@ -9,20 +10,10 @@ struct device;
extern void set_trace_device(struct device *);
extern void generate_resume_trace(void *tracedata, unsigned int user);
#define TRACE_DEVICE(dev) set_trace_device(dev)
#define TRACE_RESUME(user) do { \
if (pm_trace_enabled) { \
void *tracedata; \
asm volatile("movl $1f,%0\n" \
".section .tracedata,\"a\"\n" \
"1:\t.word %c1\n" \
"\t.long %c2\n" \
".previous" \
:"=r" (tracedata) \
: "i" (__LINE__), "i" (__FILE__)); \
generate_resume_trace(tracedata, user); \
} \
} while (0)
#define TRACE_DEVICE(dev) do { \
if (pm_trace_enabled) \
set_trace_device(dev); \
} while(0)
#else