linux-stable/drivers/iommu/iommu-traces.c
Shuah Khan 04fa2f7f83 iommu: Add iommu_error class event to iommu trace
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>
2013-09-25 11:07:04 +02:00

27 lines
633 B
C

/*
* iommu trace points
*
* Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
*
*/
#include <linux/string.h>
#include <linux/types.h>
#define CREATE_TRACE_POINTS
#include <trace/events/iommu.h>
/* iommu_group_event */
EXPORT_TRACEPOINT_SYMBOL_GPL(add_device_to_group);
EXPORT_TRACEPOINT_SYMBOL_GPL(remove_device_from_group);
/* iommu_device_event */
EXPORT_TRACEPOINT_SYMBOL_GPL(attach_device_to_domain);
EXPORT_TRACEPOINT_SYMBOL_GPL(detach_device_from_domain);
/* iommu_map_unmap */
EXPORT_TRACEPOINT_SYMBOL_GPL(map);
EXPORT_TRACEPOINT_SYMBOL_GPL(unmap);
/* iommu_error */
EXPORT_TRACEPOINT_SYMBOL_GPL(io_page_fault);