diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 737c51d63480..f2b063b027f0 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -614,6 +614,27 @@ int opal_hmi_exception_early(struct pt_regs *regs) return 0; } +int opal_hmi_exception_early2(struct pt_regs *regs) +{ + s64 rc; + __be64 out_flags; + + /* + * call opal hmi handler. + * Check 64-bit flag mask to find out if an event was generated, + * and whether TB is still valid or not etc. + */ + rc = opal_handle_hmi2(&out_flags); + if (rc != OPAL_SUCCESS) + return 0; + + if (be64_to_cpu(out_flags) & OPAL_HMI_FLAGS_NEW_EVENT) + local_paca->hmi_event_available = 1; + if (be64_to_cpu(out_flags) & OPAL_HMI_FLAGS_TOD_TB_FAIL) + tb_invalid = true; + return 1; +} + /* HMI exception handler called in virtual mode during check_irq_replay. */ int opal_handle_hmi_exception(struct pt_regs *regs) { |