mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 22:35:37 +07:00
431d452af1
Occasionally, the system can't come back up after suspend/resume due to problems of device suspending phase. This patch make PM_TRACE infrastructure cover device suspending phase of suspend/resume process, and the information in RTC can tell developers which device suspending function make system hang. Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
36 lines
728 B
C
36 lines
728 B
C
#ifndef PM_TRACE_H
|
|
#define PM_TRACE_H
|
|
|
|
#ifdef CONFIG_PM_TRACE
|
|
#include <asm/pm-trace.h>
|
|
#include <linux/types.h>
|
|
|
|
extern int pm_trace_enabled;
|
|
|
|
static inline int pm_trace_is_enabled(void)
|
|
{
|
|
return pm_trace_enabled;
|
|
}
|
|
|
|
struct device;
|
|
extern void set_trace_device(struct device *);
|
|
extern void generate_pm_trace(const void *tracedata, unsigned int user);
|
|
extern int show_trace_dev_match(char *buf, size_t size);
|
|
|
|
#define TRACE_DEVICE(dev) do { \
|
|
if (pm_trace_enabled) \
|
|
set_trace_device(dev); \
|
|
} while(0)
|
|
|
|
#else
|
|
|
|
static inline int pm_trace_is_enabled(void) { return 0; }
|
|
|
|
#define TRACE_DEVICE(dev) do { } while (0)
|
|
#define TRACE_RESUME(dev) do { } while (0)
|
|
#define TRACE_SUSPEND(dev) do { } while (0)
|
|
|
|
#endif
|
|
|
|
#endif
|