events/iommu.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * iommu trace points
   4  *
   5  * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
   6  *
   7  */
   8 #undef TRACE_SYSTEM
   9 #define TRACE_SYSTEM iommu
  10
  11 #if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
  12 #define _TRACE_IOMMU_H
  13
  14 #include <linux/tracepoint.h>
  15
  16 struct device;
  17
  18 DECLARE_EVENT_CLASS(iommu_group_event,
  19
  20         TP_PROTO(int group_id, struct device *dev),
  21
  22         TP_ARGS(group_id, dev),
  23
  24         TP_STRUCT__entry(
  25                 __field(int, gid)
  26                 __string(device, dev_name(dev))
  27         ),
  28
  29         TP_fast_assign(
  30                 __entry->gid = group_id;
  31                 __assign_str(device, dev_name(dev));
  32         ),
  33
  34         TP_printk("IOMMU: groupID=%d device=%s",
  35                         __entry->gid, __get_str(device)
  36         )
  37 );
  38
  39 DEFINE_EVENT(iommu_group_event, add_device_to_group,
  40
  41         TP_PROTO(int group_id, struct device *dev),
  42
  43         TP_ARGS(group_id, dev)
  44
  45 );
  46
  47 DEFINE_EVENT(iommu_group_event, remove_device_from_group,
  48
  49         TP_PROTO(int group_id, struct device *dev),
  50
  51         TP_ARGS(group_id, dev)
  52 );
  53
  54 DECLARE_EVENT_CLASS(iommu_device_event,
  55
  56         TP_PROTO(struct device *dev),
  57
  58         TP_ARGS(dev),
  59
  60         TP_STRUCT__entry(
  61                 __string(device, dev_name(dev))
  62         ),
  63
  64         TP_fast_assign(
  65                 __assign_str(device, dev_name(dev));
  66         ),
  67
  68         TP_printk("IOMMU: device=%s", __get_str(device)
  69         )
  70 );
  71
  72 DEFINE_EVENT(iommu_device_event, attach_device_to_domain,
  73
  74         TP_PROTO(struct device *dev),
  75
  76         TP_ARGS(dev)
  77 );
  78
  79 TRACE_EVENT(map,
  80
  81         TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
  82
  83         TP_ARGS(iova, paddr, size),
  84
  85         TP_STRUCT__entry(
  86                 __field(u64, iova)
  87                 __field(u64, paddr)
  88                 __field(size_t, size)
  89         ),
  90
  91         TP_fast_assign(
  92                 __entry->iova = iova;
  93                 __entry->paddr = paddr;
  94                 __entry->size = size;
  95         ),
  96
  97         TP_printk("IOMMU: iova=0x%016llx - 0x%016llx paddr=0x%016llx size=%zu",
  98                   __entry->iova, __entry->iova + __entry->size, __entry->paddr,
  99                   __entry->size
 100         )
 101 );
 102
 103 TRACE_EVENT(unmap,
 104
 105         TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),
 106
 107         TP_ARGS(iova, size, unmapped_size),
 108
 109         TP_STRUCT__entry(
 110                 __field(u64, iova)
 111                 __field(size_t, size)
 112                 __field(size_t, unmapped_size)
 113         ),
 114
 115         TP_fast_assign(
 116                 __entry->iova = iova;
 117                 __entry->size = size;
 118                 __entry->unmapped_size = unmapped_size;
 119         ),
 120
 121         TP_printk("IOMMU: iova=0x%016llx - 0x%016llx size=%zu unmapped_size=%zu",
 122                   __entry->iova, __entry->iova + __entry->size,
 123                   __entry->size, __entry->unmapped_size
 124         )
 125 );
 126
 127 DECLARE_EVENT_CLASS(iommu_error,
 128
 129         TP_PROTO(struct device *dev, unsigned long iova, int flags),
 130
 131         TP_ARGS(dev, iova, flags),
 132
 133         TP_STRUCT__entry(
 134                 __string(device, dev_name(dev))
 135                 __string(driver, dev_driver_string(dev))
 136                 __field(u64, iova)
 137                 __field(int, flags)
 138         ),
 139
 140         TP_fast_assign(
 141                 __assign_str(device, dev_name(dev));
 142                 __assign_str(driver, dev_driver_string(dev));
 143                 __entry->iova = iova;
 144                 __entry->flags = flags;
 145         ),
 146
 147         TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
 148                         __get_str(driver), __get_str(device),
 149                         __entry->iova, __entry->flags
 150         )
 151 );
 152
 153 DEFINE_EVENT(iommu_error, io_page_fault,
 154
 155         TP_PROTO(struct device *dev, unsigned long iova, int flags),
 156
 157         TP_ARGS(dev, iova, flags)
 158 );
 159 #endif /* _TRACE_IOMMU_H */
 160
 161 /* This part must be outside protection */
 162 #include <trace/define_trace.h>