/*
 * iommu trace points
 *
 * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
 *
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iommu

#if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_IOMMU_H

#include <linux/tracepoint.h>
#include <linux/pci.h>

struct device;

DECLARE_EVENT_CLASS(iommu_group_event,

	TP_PROTO(int group_id, struct device *dev),

	TP_ARGS(group_id, dev),

	TP_STRUCT__entry(
		__field(int, gid)
		__string(device, dev_name(dev))
	),

	TP_fast_assign(
		__entry->gid = group_id;
		__assign_str(device, dev_name(dev));
	),

	TP_printk("IOMMU: groupID=%d device=%s",
			__entry->gid, __get_str(device)
	)
);

DEFINE_EVENT(iommu_group_event, add_device_to_group,

	TP_PROTO(int group_id, struct device *dev),

	TP_ARGS(group_id, dev)

);

DEFINE_EVENT(iommu_group_event, remove_device_from_group,

	TP_PROTO(int group_id, struct device *dev),

	TP_ARGS(group_id, dev)
);

DECLARE_EVENT_CLASS(iommu_device_event,

	TP_PROTO(struct device *dev),

	TP_ARGS(dev),

	TP_STRUCT__entry(
		__string(device, dev_name(dev))
	),

	TP_fast_assign(
		__assign_str(device, dev_name(dev));
	),

	TP_printk("IOMMU: device=%s", __get_str(device)
	)
);

DEFINE_EVENT(iommu_device_event, attach_device_to_domain,

	TP_PROTO(struct device *dev),

	TP_ARGS(dev)
);

DEFINE_EVENT(iommu_device_event, detach_device_from_domain,

	TP_PROTO(struct device *dev),

	TP_ARGS(dev)
);

TRACE_EVENT(map,

	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),

	TP_ARGS(iova, paddr, size),

	TP_STRUCT__entry(
		__field(u64, iova)
		__field(u64, paddr)
		__field(size_t, size)
	),

	TP_fast_assign(
		__entry->iova = iova;
		__entry->paddr = paddr;
		__entry->size = size;
	),

	TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=%zu",
			__entry->iova, __entry->paddr, __entry->size
	)
);

TRACE_EVENT(unmap,

	TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),

	TP_ARGS(iova, size, unmapped_size),

	TP_STRUCT__entry(
		__field(u64, iova)
		__field(size_t, size)
		__field(size_t, unmapped_size)
	),

	TP_fast_assign(
		__entry->iova = iova;
		__entry->size = size;
		__entry->unmapped_size = unmapped_size;
	),

	TP_printk("IOMMU: iova=0x%016llx size=%zu unmapped_size=%zu",
			__entry->iova, __entry->size, __entry->unmapped_size
	)
);

DECLARE_EVENT_CLASS(iommu_error,

	TP_PROTO(struct device *dev, unsigned long iova, int flags),

	TP_ARGS(dev, iova, flags),

	TP_STRUCT__entry(
		__string(device, dev_name(dev))
		__string(driver, dev_driver_string(dev))
		__field(u64, iova)
		__field(int, flags)
	),

	TP_fast_assign(
		__assign_str(device, dev_name(dev));
		__assign_str(driver, dev_driver_string(dev));
		__entry->iova = iova;
		__entry->flags = flags;
	),

	TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
			__get_str(driver), __get_str(device),
			__entry->iova, __entry->flags
	)
);

DEFINE_EVENT(iommu_error, io_page_fault,

	TP_PROTO(struct device *dev, unsigned long iova, int flags),

	TP_ARGS(dev, iova, flags)
);
#endif /* _TRACE_IOMMU_H */

/* This part must be outside protection */
#include <trace/define_trace.h>
<option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Chen-Yu Tsai &lt;wens@csie.org&gt;</td><td class='right'>2016-08-25 14:26:59 +0800</td></tr>
<tr><th>committer</th><td>Daniel Lezcano &lt;daniel.lezcano@linaro.org&gt;</td><td class='right'>2016-08-26 15:56:01 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e'>b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e'>5d476bef0f44eadff6690dfb3cbff0bdf424659e</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=4d0e701659aa869a445823149e172e23faa6edac'>4d0e701659aa869a445823149e172e23faa6edac</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e&amp;id2=4d0e701659aa869a445823149e172e23faa6edac'>diff</a>)</td></tr></table>
<div class='commit-subject'>clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function</div><div class='commit-msg'>The bootloader (U-boot) sometimes uses this timer for various delays.
It uses it as a ongoing counter, and does comparisons on the current
counter value. The timer counter is never stopped.

In some cases when the user interacts with the bootloader, or lets
it idle for some time before loading Linux, the timer may expire,
and an interrupt will be pending. This results in an unexpected
interrupt when the timer interrupt is enabled by the kernel, at
which point the event_handler isn't set yet. This results in a NULL
pointer dereference exception, panic, and no way to reboot.

Clear any pending interrupts after we stop the timer in the probe
function to avoid this.

Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai &lt;wens@csie.org&gt;
Signed-off-by: Daniel Lezcano &lt;daniel.lezcano@linaro.org&gt;
Acked-by: Maxime Ripard &lt;maxime.ripard@free-electrons.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e'>Diffstat</a></div><table summary='diffstat' class='diffstat'>