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27af67f356
This is enabled only with radix translation and 1G hugepage size. This will be used with devdax device memory with a namespace alignment of 1G. Anon transparent hugepage is not supported even though we do have helpers checking pud_trans_huge(). We should never find that return true. The only expected pte bit combination is _PAGE_PTE | _PAGE_DEVMAP. Some of the helpers are never expected to get called on hash translation and hence is marked to call BUG() in such a case. Link: https://lkml.kernel.org/r/20230724190759.483013-10-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
100 lines
2.5 KiB
C
100 lines
2.5 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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DECLARE_EVENT_CLASS(hugepage_set,
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TP_PROTO(unsigned long addr, unsigned long pte),
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TP_ARGS(addr, pte),
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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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),
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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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),
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TP_printk("Set page table entry with 0x%lx with 0x%lx", __entry->addr, __entry->pte)
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);
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DEFINE_EVENT(hugepage_set, 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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);
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DEFINE_EVENT(hugepage_set, hugepage_set_pud,
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TP_PROTO(unsigned long addr, unsigned long pud),
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TP_ARGS(addr, pud)
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);
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DECLARE_EVENT_CLASS(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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DEFINE_EVENT(hugepage_update, hugepage_update_pmd,
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TP_PROTO(unsigned long addr, unsigned long pmd, unsigned long clr, unsigned long set),
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TP_ARGS(addr, pmd, clr, set)
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);
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DEFINE_EVENT(hugepage_update, hugepage_update_pud,
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TP_PROTO(unsigned long addr, unsigned long pud, unsigned long clr, unsigned long set),
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TP_ARGS(addr, pud, clr, 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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