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Commit 62521ea6 authored by Mahesh Salgaonkar's avatar Mahesh Salgaonkar Committed by Michael Ellerman
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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: default avatarMahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent e784b649

arch/powerpc/platforms/powernv/opal-hmi.c

+19 −0
Original line number Diff line number Diff line
@@ -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");

	}

}