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    Subject[PATCH 5.4 053/314] powerpc/ptdump: Add _PAGE_COHERENT flag
    Date
    From: Christophe Leroy <christophe.leroy@csgroup.eu>

    [ Upstream commit 3af4786eb429b2df76cbd7ce3bae21467ac3e4fb ]

    For platforms using shared.c (4xx, Book3e, Book3s/32), also handle the
    _PAGE_COHERENT flag which corresponds to the M bit of the WIMG flags.

    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    [mpe: Make it more verbose, use "coherent" rather than "m"]
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Link: https://lore.kernel.org/r/324c3d860717e8e91fca3bb6c0f8b23e1644a404.1589866984.git.christophe.leroy@csgroup.eu
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/powerpc/mm/ptdump/shared.c | 5 +++++
    1 file changed, 5 insertions(+)

    diff --git a/arch/powerpc/mm/ptdump/shared.c b/arch/powerpc/mm/ptdump/shared.c
    index f7ed2f187cb01..784f8df17f732 100644
    --- a/arch/powerpc/mm/ptdump/shared.c
    +++ b/arch/powerpc/mm/ptdump/shared.c
    @@ -30,6 +30,11 @@ static const struct flag_info flag_array[] = {
    .val = _PAGE_PRESENT,
    .set = "present",
    .clear = " ",
    + }, {
    + .mask = _PAGE_COHERENT,
    + .val = _PAGE_COHERENT,
    + .set = "coherent",
    + .clear = " ",
    }, {
    .mask = _PAGE_GUARDED,
    .val = _PAGE_GUARDED,
    --
    2.25.1


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