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    Subject[PATCH 4.14 041/496] powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Michael Ellerman <mpe@ellerman.id.au>

    commit 921bc6cf807ceb2ab8005319cf39f33494d6b100 upstream.

    We might have migrated to a machine that uses a different flush type,
    or doesn't need flushing at all.

    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/powerpc/platforms/pseries/mobility.c | 3 +++
    arch/powerpc/platforms/pseries/pseries.h | 2 ++
    arch/powerpc/platforms/pseries/setup.c | 2 +-
    3 files changed, 6 insertions(+), 1 deletion(-)

    --- a/arch/powerpc/platforms/pseries/mobility.c
    +++ b/arch/powerpc/platforms/pseries/mobility.c
    @@ -348,6 +348,9 @@ void post_mobility_fixup(void)
    printk(KERN_ERR "Post-mobility device tree update "
    "failed: %d\n", rc);

    + /* Possibly switch to a new RFI flush type */
    + pseries_setup_rfi_flush();
    +
    return;
    }

    --- a/arch/powerpc/platforms/pseries/pseries.h
    +++ b/arch/powerpc/platforms/pseries/pseries.h
    @@ -100,4 +100,6 @@ static inline unsigned long cmo_get_page

    int dlpar_workqueue_init(void);

    +void pseries_setup_rfi_flush(void);
    +
    #endif /* _PSERIES_PSERIES_H */
    --- a/arch/powerpc/platforms/pseries/setup.c
    +++ b/arch/powerpc/platforms/pseries/setup.c
    @@ -459,7 +459,7 @@ static void __init find_and_init_phbs(vo
    of_pci_check_probe_only();
    }

    -static void pseries_setup_rfi_flush(void)
    +void pseries_setup_rfi_flush(void)
    {
    struct h_cpu_char_result result;
    enum l1d_flush_type types;

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