drivers/base/trace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Device core Trace Support
   4  * Copyright (C) 2021, Intel Corporation
   5  *
   6  * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
   7  */
   8
   9 #undef TRACE_SYSTEM
  10 #define TRACE_SYSTEM dev
  11
  12 #if !defined(__DEV_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
  13 #define __DEV_TRACE_H
  14
  15 #include <linux/device.h>
  16 #include <linux/tracepoint.h>
  17 #include <linux/types.h>
  18
  19 DECLARE_EVENT_CLASS(devres,
  20         TP_PROTO(struct device *dev, const char *op, void *node, const char *name, size_t size),
  21         TP_ARGS(dev, op, node, name, size),
  22         TP_STRUCT__entry(
  23                 __string(devname, dev_name(dev))
  24                 __field(struct device *, dev)
  25                 __field(const char *, op)
  26                 __field(void *, node)
  27                 __string(name, name)
  28                 __field(size_t, size)
  29         ),
  30         TP_fast_assign(
  31                 __assign_str(devname);
  32                 __entry->op = op;
  33                 __entry->node = node;
  34                 __assign_str(name);
  35                 __entry->size = size;
  36         ),
  37         TP_printk("%s %3s %p %s (%zu bytes)", __get_str(devname),
  38                   __entry->op, __entry->node, __get_str(name), __entry->size)
  39 );
  40
  41 DEFINE_EVENT(devres, devres_log,
  42         TP_PROTO(struct device *dev, const char *op, void *node, const char *name, size_t size),
  43         TP_ARGS(dev, op, node, name, size)
  44 );
  45
  46 #endif /* __DEV_TRACE_H */
  47
  48 /* this part has to be here */
  49
  50 #undef TRACE_INCLUDE_PATH
  51 #define TRACE_INCLUDE_PATH .
  52
  53 #undef TRACE_INCLUDE_FILE
  54 #define TRACE_INCLUDE_FILE trace
  55
  56 #include <trace/define_trace.h>