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04fa2f7f83
iommu_error class event can be enabled to trigger when an iommu error occurs. This trace event is intended to be called to report the error information. Trace information includes driver name, device name, iova, and flags. iommu_error:io_page_fault Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
162 lines
2.9 KiB
C
162 lines
2.9 KiB
C
/*
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* iommu trace points
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*
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* Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
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*
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM iommu
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#if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_IOMMU_H
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#include <linux/tracepoint.h>
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#include <linux/pci.h>
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struct device;
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DECLARE_EVENT_CLASS(iommu_group_event,
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TP_PROTO(int group_id, struct device *dev),
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TP_ARGS(group_id, dev),
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TP_STRUCT__entry(
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__field(int, gid)
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__string(device, dev_name(dev))
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),
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TP_fast_assign(
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__entry->gid = group_id;
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__assign_str(device, dev_name(dev));
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),
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TP_printk("IOMMU: groupID=%d device=%s",
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__entry->gid, __get_str(device)
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)
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);
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DEFINE_EVENT(iommu_group_event, add_device_to_group,
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TP_PROTO(int group_id, struct device *dev),
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TP_ARGS(group_id, dev)
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);
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DEFINE_EVENT(iommu_group_event, remove_device_from_group,
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TP_PROTO(int group_id, struct device *dev),
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TP_ARGS(group_id, dev)
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);
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DECLARE_EVENT_CLASS(iommu_device_event,
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TP_PROTO(struct device *dev),
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TP_ARGS(dev),
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TP_STRUCT__entry(
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__string(device, dev_name(dev))
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),
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TP_fast_assign(
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__assign_str(device, dev_name(dev));
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),
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TP_printk("IOMMU: device=%s", __get_str(device)
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)
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);
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DEFINE_EVENT(iommu_device_event, attach_device_to_domain,
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TP_PROTO(struct device *dev),
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TP_ARGS(dev)
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);
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DEFINE_EVENT(iommu_device_event, detach_device_from_domain,
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TP_PROTO(struct device *dev),
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TP_ARGS(dev)
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);
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DECLARE_EVENT_CLASS(iommu_map_unmap,
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TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
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TP_ARGS(iova, paddr, size),
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TP_STRUCT__entry(
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__field(u64, iova)
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__field(u64, paddr)
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__field(int, size)
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),
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TP_fast_assign(
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__entry->iova = iova;
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__entry->paddr = paddr;
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__entry->size = size;
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),
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TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=0x%x",
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__entry->iova, __entry->paddr, __entry->size
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)
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);
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DEFINE_EVENT(iommu_map_unmap, map,
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TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
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TP_ARGS(iova, paddr, size)
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);
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DEFINE_EVENT_PRINT(iommu_map_unmap, unmap,
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TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
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TP_ARGS(iova, paddr, size),
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TP_printk("IOMMU: iova=0x%016llx size=0x%x",
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__entry->iova, __entry->size
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)
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);
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DECLARE_EVENT_CLASS(iommu_error,
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TP_PROTO(struct device *dev, unsigned long iova, int flags),
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TP_ARGS(dev, iova, flags),
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TP_STRUCT__entry(
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__string(device, dev_name(dev))
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__string(driver, dev_driver_string(dev))
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__field(u64, iova)
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__field(int, flags)
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),
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TP_fast_assign(
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__assign_str(device, dev_name(dev));
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__assign_str(driver, dev_driver_string(dev));
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__entry->iova = iova;
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__entry->flags = flags;
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),
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TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
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__get_str(driver), __get_str(device),
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__entry->iova, __entry->flags
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)
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);
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DEFINE_EVENT(iommu_error, io_page_fault,
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TP_PROTO(struct device *dev, unsigned long iova, int flags),
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TP_ARGS(dev, iova, flags)
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);
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#endif /* _TRACE_IOMMU_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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