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
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#define PM_TRACE_H
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#ifdef CONFIG_PM_TRACE
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#include <asm/pm-trace.h>
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#include <linux/types.h>
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extern int pm_trace_enabled;
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static inline int pm_trace_is_enabled(void)
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{
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return pm_trace_enabled;
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}
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struct device;
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extern void set_trace_device(struct device *);
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extern void generate_pm_trace(const void *tracedata, unsigned int user);
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extern int show_trace_dev_match(char *buf, size_t size);
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#define TRACE_DEVICE(dev) do { \
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if (pm_trace_enabled) \
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set_trace_device(dev); \
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} while(0)
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#else
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static inline int pm_trace_is_enabled(void) { return 0; }
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#define TRACE_DEVICE(dev) do { } while (0)
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#define TRACE_RESUME(dev) do { } while (0)
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#define TRACE_SUSPEND(dev) do { } while (0)
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#endif
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#endif
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