diff options
| author | Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> | 2015-08-04 16:48:56 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-08-06 15:10:19 +1000 |
| commit | 62521ea6db1045a746d4625f40ef6be8b74f126d (patch) | |
| tree | c6a8cf0e142684ae15f225299d771bd17a3de621 /arch/powerpc/platforms | |
| parent | e784b6499d9cba83b7f3f032b7ee01f7ca96ad91 (diff) | |
| download | lwn-62521ea6db1045a746d4625f40ef6be8b74f126d.tar.gz lwn-62521ea6db1045a746d4625f40ef6be8b74f126d.zip | |
powerpc/powernv: Invoke opal_cec_reboot2() on unrecoverable HMI.
Invoke new opal_cec_reboot2() call with reboot type
OPAL_REBOOT_PLATFORM_ERROR (for unrecoverable HMI interrupts) to inform
BMC/OCC about this error, so that BMC can collect relevant data for error
analysis and decide what component to de-configure before rebooting.
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-hmi.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-hmi.c b/arch/powerpc/platforms/powernv/opal-hmi.c index acefdf9646f5..d000f4e21981 100644 --- a/arch/powerpc/platforms/powernv/opal-hmi.c +++ b/arch/powerpc/platforms/powernv/opal-hmi.c @@ -264,6 +264,8 @@ static void hmi_event_handler(struct work_struct *work) spin_unlock_irqrestore(&opal_hmi_evt_lock, flags); if (unrecoverable) { + int ret; + /* Pull all HMI events from OPAL before we panic. */ while (opal_get_msg(__pa(&msg), sizeof(msg)) == OPAL_SUCCESS) { u32 type; @@ -278,6 +280,23 @@ static void hmi_event_handler(struct work_struct *work) hmi_evt = (struct OpalHMIEvent *)&msg.params[0]; print_hmi_event_info(hmi_evt); } + + /* + * Unrecoverable HMI exception. We need to inform BMC/OCC + * about this error so that it can collect relevant data + * for error analysis before rebooting. + */ + ret = opal_cec_reboot2(OPAL_REBOOT_PLATFORM_ERROR, + "Unrecoverable HMI exception"); + if (ret == OPAL_UNSUPPORTED) { + pr_emerg("Reboot type %d not supported\n", + OPAL_REBOOT_PLATFORM_ERROR); + } + + /* + * Fall through and panic if opal_cec_reboot2() returns + * OPAL_UNSUPPORTED. + */ panic("Unrecoverable HMI exception"); } } |