drivers/misc/mei/mei-trace.h

Source file repositories/reference/linux-study-clean/drivers/misc/mei/mei-trace.h

File Facts

System
Linux kernel
Corpus path
drivers/misc/mei/mei-trace.h
Extension
.h
Size
2126 bytes
Lines
86
Domain
Driver Families
Bucket
drivers/misc
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#if !defined(_MEI_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _MEI_TRACE_H_

#include <linux/stringify.h>
#include <linux/types.h>
#include <linux/tracepoint.h>

#include <linux/device.h>

#undef TRACE_SYSTEM
#define TRACE_SYSTEM mei

TRACE_EVENT(mei_reg_read,
	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val),
	TP_ARGS(dev, reg, offs, val),
	TP_STRUCT__entry(
		__string(dev, dev_name(dev))
		__string(reg, reg)
		__field(u32, offs)
		__field(u32, val)
	),
	TP_fast_assign(
		__assign_str(dev);
		__assign_str(reg);
		__entry->offs = offs;
		__entry->val = val;
	),
	TP_printk("[%s] read %s:[%#x] = %#x",
		  __get_str(dev), __get_str(reg), __entry->offs, __entry->val)
);

TRACE_EVENT(mei_reg_write,
	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val),
	TP_ARGS(dev, reg, offs, val),
	TP_STRUCT__entry(
		__string(dev, dev_name(dev))
		__string(reg, reg)
		__field(u32, offs)
		__field(u32, val)
	),
	TP_fast_assign(
		__assign_str(dev);
		__assign_str(reg);
		__entry->offs = offs;
		__entry->val = val;
	),
	TP_printk("[%s] write %s[%#x] = %#x",
		  __get_str(dev), __get_str(reg),  __entry->offs, __entry->val)
);

TRACE_EVENT(mei_pci_cfg_read,
	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val, int ret),
	TP_ARGS(dev, reg, offs, val, ret),
	TP_STRUCT__entry(
		__string(dev, dev_name(dev))
		__string(reg, reg)
		__field(u32, offs)
		__field(u32, val)
		__field(int, ret)
	),
	TP_fast_assign(
		__assign_str(dev);
		__assign_str(reg);
		__entry->offs = offs;
		__entry->val = val;
		__entry->ret = ret;
	),
	TP_printk("[%s] pci cfg read %s:[%#x] = %#x, ret = %d",
		  __get_str(dev), __get_str(reg), __entry->offs, __entry->val, __entry->ret)
);

#endif /* _MEI_TRACE_H_ */

/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE mei-trace
#include <trace/define_trace.h>

Annotation

Implementation Notes