drivers/base/regmap/trace.h

Source file repositories/reference/linux-study-clean/drivers/base/regmap/trace.h

File Facts

System
Linux kernel
Corpus path
drivers/base/regmap/trace.h
Extension
.h
Size
5382 bytes
Lines
285
Domain
Driver Families
Bucket
drivers/base
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

#undef TRACE_SYSTEM
#define TRACE_SYSTEM regmap

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

#include <linux/ktime.h>
#include <linux/tracepoint.h>

#include "internal.h"

/*
 * Log register events
 */
DECLARE_EVENT_CLASS(regmap_reg,

	TP_PROTO(struct regmap *map, unsigned int reg,
		 unsigned int val),

	TP_ARGS(map, reg, val),

	TP_STRUCT__entry(
		__string(	name,		regmap_name(map)	)
		__field(	unsigned int,	reg			)
		__field(	unsigned int,	val			)
	),

	TP_fast_assign(
		__assign_str(name);
		__entry->reg = reg;
		__entry->val = val;
	),

	TP_printk("%s reg=%x val=%x", __get_str(name), __entry->reg, __entry->val)
);

DEFINE_EVENT(regmap_reg, regmap_reg_write,

	TP_PROTO(struct regmap *map, unsigned int reg,
		 unsigned int val),

	TP_ARGS(map, reg, val)
);

DEFINE_EVENT(regmap_reg, regmap_reg_read,

	TP_PROTO(struct regmap *map, unsigned int reg,
		 unsigned int val),

	TP_ARGS(map, reg, val)
);

DEFINE_EVENT(regmap_reg, regmap_reg_read_cache,

	TP_PROTO(struct regmap *map, unsigned int reg,
		 unsigned int val),

	TP_ARGS(map, reg, val)
);

DECLARE_EVENT_CLASS(regmap_bulk,

	TP_PROTO(struct regmap *map, unsigned int reg,
		 const void *val, int val_len),

	TP_ARGS(map, reg, val, val_len),

	TP_STRUCT__entry(
		__string(name, regmap_name(map))
		__field(unsigned int, reg)
		__dynamic_array(char, buf, val_len)
		__field(int, val_len)
	),

	TP_fast_assign(
		__assign_str(name);
		__entry->reg = reg;
		__entry->val_len = val_len;
		memcpy(__get_dynamic_array(buf), val, val_len);
	),

	TP_printk("%s reg=%x val=%s", __get_str(name), __entry->reg,
		  __print_hex(__get_dynamic_array(buf), __entry->val_len))
);

DEFINE_EVENT(regmap_bulk, regmap_bulk_write,

	TP_PROTO(struct regmap *map, unsigned int reg,
		 const void *val, int val_len),

Annotation

Implementation Notes