diff options
Diffstat (limited to 'arch/powerpc/kernel/idle_book3s.S')
| -rw-r--r-- | arch/powerpc/kernel/idle_book3s.S | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S index 1ea14b96f126..f6518c768d2a 100644 --- a/arch/powerpc/kernel/idle_book3s.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -436,6 +436,13 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300) */ pnv_restore_hyp_resource_arch300: /* + * Workaround for POWER9, if we lost resources, the ERAT + * might have been mixed up and needs flushing. + */ + blt cr3,1f + PPC_INVALIDATE_ERAT +1: + /* * POWER ISA 3. Use PSSCR to determine if we * are waking up from deep idle state */ |