diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2023-07-24 22:07:55 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 20:12:55 +0300 |
| commit | 27af67f35631ac4b61b5e4455b44c9aee8d2cc4b (patch) | |
| tree | f73ea1ff4b659455df3261cae9596d1b62c4520a /include/trace | |
| parent | 104c49d5b6dc8b38aea0cb7300068b378cf37ac1 (diff) | |
| download | linux-27af67f35631ac4b61b5e4455b44c9aee8d2cc4b.tar.xz | |
powerpc/book3s64/mm: enable transparent pud hugepage
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>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/thp.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/trace/events/thp.h b/include/trace/events/thp.h index a95c78b10561..f50048af5fcc 100644 --- a/include/trace/events/thp.h +++ b/include/trace/events/thp.h @@ -30,6 +30,11 @@ DEFINE_EVENT(hugepage_set, hugepage_set_pmd, TP_ARGS(addr, pmd) ); +DEFINE_EVENT(hugepage_set, hugepage_set_pud, + TP_PROTO(unsigned long addr, unsigned long pud), + TP_ARGS(addr, pud) +); + DECLARE_EVENT_CLASS(hugepage_update, TP_PROTO(unsigned long addr, unsigned long pte, unsigned long clr, unsigned long set), @@ -57,6 +62,11 @@ DEFINE_EVENT(hugepage_update, hugepage_update_pmd, TP_ARGS(addr, pmd, clr, set) ); +DEFINE_EVENT(hugepage_update, hugepage_update_pud, + TP_PROTO(unsigned long addr, unsigned long pud, unsigned long clr, unsigned long set), + TP_ARGS(addr, pud, clr, set) +); + DECLARE_EVENT_CLASS(migration_pmd, TP_PROTO(unsigned long addr, unsigned long pmd), |