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Patch series "mm/migration: Add trace events", v3. This adds trace events for all migration scenarios including base page, THP and HugeTLB. This patch (of 3): This adds two trace events for PMD based THP migration without split. These events closely follow the implementation details like setting and removing of PMD migration entries, which are essential operations for THP migration. This moves CREATE_TRACE_POINTS into generic THP from powerpc for these new trace events to be available on other platforms as well. Link: https://lkml.kernel.org/r/1643368182-9588-1-git-send-email-anshuman.khandual@arm.com Link: https://lkml.kernel.org/r/1643368182-9588-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Zi Yan <ziy@nvidia.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM thp
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#if !defined(_TRACE_THP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_THP_H
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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TRACE_EVENT(hugepage_set_pmd,
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TP_PROTO(unsigned long addr, unsigned long pmd),
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TP_ARGS(addr, pmd),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pmd)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pmd = pmd;
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),
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TP_printk("Set pmd with 0x%lx with 0x%lx", __entry->addr, __entry->pmd)
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);
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TRACE_EVENT(hugepage_update,
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TP_PROTO(unsigned long addr, unsigned long pte, unsigned long clr, unsigned long set),
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TP_ARGS(addr, pte, clr, set),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pte)
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__field(unsigned long, clr)
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__field(unsigned long, set)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pte = pte;
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__entry->clr = clr;
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__entry->set = set;
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),
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TP_printk("hugepage update at addr 0x%lx and pte = 0x%lx clr = 0x%lx, set = 0x%lx", __entry->addr, __entry->pte, __entry->clr, __entry->set)
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);
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DECLARE_EVENT_CLASS(migration_pmd,
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TP_PROTO(unsigned long addr, unsigned long pmd),
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TP_ARGS(addr, pmd),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pmd)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pmd = pmd;
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),
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TP_printk("addr=%lx, pmd=%lx", __entry->addr, __entry->pmd)
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);
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DEFINE_EVENT(migration_pmd, set_migration_pmd,
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TP_PROTO(unsigned long addr, unsigned long pmd),
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TP_ARGS(addr, pmd)
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);
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DEFINE_EVENT(migration_pmd, remove_migration_pmd,
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TP_PROTO(unsigned long addr, unsigned long pmd),
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TP_ARGS(addr, pmd)
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);
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#endif /* _TRACE_THP_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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