Merge branch 'fixes' into next

Merge our fixes branch from the 4.16 cycle.

There were a number of important fixes merged, in particular some Power9
workarounds that we want in next for testing purposes. There's also been
some conflicting changes in the CPU features code which are best merged
and tested before going upstream.

arch/powerpc/kernel/dt_cpu_ftrs.c

diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 0af2c5d..4313ff0 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -714,8 +714,10 @@ static __init void cpufeatures_cpu_quirks(void)
 		cur_cpu_spec->cpu_features |= CPU_FTR_P9_TM_HV_ASSIST |
 			CPU_FTR_P9_TM_XER_SO_BUG;
 
-	if ((version & 0xffff0000) == 0x004e0000)
+	if ((version & 0xffff0000) == 0x004e0000) {
 		cur_cpu_spec->cpu_features &= ~(CPU_FTR_DAWR);
+		cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_BUG;
+	}
 }
 
 static void __init cpufeatures_setup_finished(void)
@@ -727,6 +729,9 @@ static void __init cpufeatures_setup_finished(void)
 		cur_cpu_spec->cpu_features |= CPU_FTR_HVMODE;
 	}
 
+	/* Make sure powerpc_base_platform is non-NULL */
+	powerpc_base_platform = cur_cpu_spec->platform;
+
 	system_registers.lpcr = mfspr(SPRN_LPCR);
 	system_registers.hfscr = mfspr(SPRN_HFSCR);
 	system_registers.fscr = mfspr(SPRN_FSCR);