kernel/include/trace/events/iommu.h

   1 /*
   2  * iommu trace points
   3  *
   4  * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
   5  *
   6  */
   7 #undef TRACE_SYSTEM
   8 #define TRACE_SYSTEM iommu
   9
  10 #if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
  11 #define _TRACE_IOMMU_H
  12
  13 #include <linux/tracepoint.h>
  14 #include <linux/pci.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 DEFINE_EVENT(iommu_device_event, detach_device_from_domain,
  80
  81         TP_PROTO(struct device *dev),
  82
  83         TP_ARGS(dev)
  84 );
  85
  86 TRACE_EVENT(map,
  87
  88         TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
  89
  90         TP_ARGS(iova, paddr, size),
  91
  92         TP_STRUCT__entry(
  93                 __field(u64, iova)
  94                 __field(u64, paddr)
  95                 __field(size_t, size)
  96         ),
  97
  98         TP_fast_assign(
  99                 __entry->iova = iova;
 100                 __entry->paddr = paddr;
 101                 __entry->size = size;
 102         ),
 103
 104         TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=%zu",
 105                         __entry->iova, __entry->paddr, __entry->size
 106         )
 107 );
 108
 109 TRACE_EVENT(unmap,
 110
 111         TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),
 112
 113         TP_ARGS(iova, size, unmapped_size),
 114
 115         TP_STRUCT__entry(
 116                 __field(u64, iova)
 117                 __field(size_t, size)
 118                 __field(size_t, unmapped_size)
 119         ),
 120
 121         TP_fast_assign(
 122                 __entry->iova = iova;
 123                 __entry->size = size;
 124                 __entry->unmapped_size = unmapped_size;
 125         ),
 126
 127         TP_printk("IOMMU: iova=0x%016llx size=%zu unmapped_size=%zu",
 128                         __entry->iova, __entry->size, __entry->unmapped_size
 129         )
 130 );
 131
 132 DECLARE_EVENT_CLASS(iommu_error,
 133
 134         TP_PROTO(struct device *dev, unsigned long iova, int flags),
 135
 136         TP_ARGS(dev, iova, flags),
 137
 138         TP_STRUCT__entry(
 139                 __string(device, dev_name(dev))
 140                 __string(driver, dev_driver_string(dev))
 141                 __field(u64, iova)
 142                 __field(int, flags)
 143         ),
 144
 145         TP_fast_assign(
 146                 __assign_str(device, dev_name(dev));
 147                 __assign_str(driver, dev_driver_string(dev));
 148                 __entry->iova = iova;
 149                 __entry->flags = flags;
 150         ),
 151
 152         TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
 153                         __get_str(driver), __get_str(device),
 154                         __entry->iova, __entry->flags
 155         )
 156 );
 157
 158 DEFINE_EVENT(iommu_error, io_page_fault,
 159
 160         TP_PROTO(struct device *dev, unsigned long iova, int flags),
 161
 162         TP_ARGS(dev, iova, flags)
 163 );
 164 #endif /* _TRACE_IOMMU_H */
 165
 166 /* This part must be outside protection */
 167 #include <trace/define_trace.h>