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 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> 168