From: Michael Ellerman <mpe@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx> Signed-off-by: Mauricio Faria de Oliveira <mauricfo@xxxxxxxxxxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -314,6 +314,9 @@ 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 @@ -81,4 +81,6 @@ extern struct pci_controller_ops pseries unsigned long pseries_memory_block_size(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 @@ -499,7 +499,7 @@ 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;