/*
 * 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>Valentin Rothberg &lt;valentinrothberg@gmail.com&gt;</td><td class='right'>2016-10-05 07:57:26 +0200</td></tr>
<tr><th>committer</th><td>Michael Ellerman &lt;mpe@ellerman.id.au&gt;</td><td class='right'>2016-10-27 21:52:59 +1100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=39715bf972ed4fee18fe5409609a971fb16b1771'>39715bf972ed4fee18fe5409609a971fb16b1771</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=39715bf972ed4fee18fe5409609a971fb16b1771'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=39715bf972ed4fee18fe5409609a971fb16b1771'>1d423c94bc8d3199a42f16b6296c9d96e929982b</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=09b7e37b18eecc1e347f4b1a3bc863f32801f634'>09b7e37b18eecc1e347f4b1a3bc863f32801f634</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=39715bf972ed4fee18fe5409609a971fb16b1771&amp;id2=09b7e37b18eecc1e347f4b1a3bc863f32801f634'>diff</a>)</td></tr></table>
<div class='commit-subject'>powerpc/process: Fix CONFIG_ALIVEC typo in restore_tm_state()</div><div class='commit-msg'>It should be ALTIVEC, not ALIVEC.

Cyril explains: If a thread performs a transaction with altivec and then
gets preempted for whatever reason, this bug may cause the kernel to not
re-enable altivec when that thread runs again. This will result in an
altivec unavailable fault, when that fault happens inside a user
transaction the kernel has no choice but to enable altivec and doom the
transaction.

The result is that transactions using altivec may get aborted more often
than they should.

The difficulty in catching this with a selftest is my deliberate use of
the word may above. Optimisations to avoid FPU/altivec/VSX faults mean
that the kernel will always leave them on for 255 switches. This code
prevents the kernel turning it off if it got to the 256th switch (and
userspace was transactional).

Fixes: dc16b553c949 ("powerpc: Always restore FPU/VEC/VSX if hardware transactional memory in use")
Reviewed-by: Cyril Bur &lt;cyrilbur@gmail.com&gt;
Signed-off-by: Valentin Rothberg &lt;valentinrothberg@gmail.com&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=39715bf972ed4fee18fe5409609a971fb16b1771'>Diffstat</a></div><table summary='diffstat' class='diffstat'>