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Commit 56b4c993 authored by Anton Blanchard's avatar Anton Blanchard Committed by Benjamin Herrenschmidt
Browse files

powerpc/powernv: Fix little endian issues with opal_do_notifier calls 



The bitmap in opal_poll_events and opal_handle_interrupt is
big endian, so we need to byteswap it on little endian builds.

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent e2c8b93e

arch/powerpc/platforms/powernv/opal.c

+3 −3
Original line number Original line Diff line number Diff line
@@ -242,14 +242,14 @@ void opal_notifier_update_evt(uint64_t evt_mask, 
void opal_notifier_enable(void)

void opal_notifier_enable(void)

{

{

	int64_t rc;

	int64_t rc;

	uint64_t evt = 0;

	__be64 evt = 0;





	atomic_set(&opal_notifier_hold, 0);

	atomic_set(&opal_notifier_hold, 0);





	/* Process pending events */

	/* Process pending events */

	rc = opal_poll_events(&evt);

	rc = opal_poll_events(&evt);

	if (rc == OPAL_SUCCESS && evt)

	if (rc == OPAL_SUCCESS && evt)

		opal_do_notifier(evt);

		opal_do_notifier(be64_to_cpu(evt));

}

}





void opal_notifier_disable(void)

void opal_notifier_disable(void)
@@ -529,7 +529,7 @@ static irqreturn_t opal_interrupt(int irq, void *data) 




	opal_handle_interrupt(virq_to_hw(irq), &events);

	opal_handle_interrupt(virq_to_hw(irq), &events);





	opal_do_notifier(events);

	opal_do_notifier(be64_to_cpu(events));





	return IRQ_HANDLED;

	return IRQ_HANDLED;

}

}