irq/occ/opal: Add self-sent dummy interrupt

This makes OPAL use the OCC interrupt facility to send itself an interrupt
whenever the OPAL event bit is set as a result of an OPAL call that wasn't
itself opal_handle_interrupt() or opal_handle_hmi() (both of which we know
the OS will already deal with appropriately).

This ensures that OPAL event changes are notified to Linux via its
interrupt path which is necessary for it to properly broadcast the state
change to its various clients.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/psi.c b/hw/psi.c
index 6752bf4..b96b611 100644
--- a/hw/psi.c
+++ b/hw/psi.c
@@ -276,7 +276,7 @@ static void handle_extra_interrupt(struct psi *psi)
 	 * when available.
 	 */
 	if (val & PSIHB_IRQ_STAT_OCC)
-		printf("PSI: OCC irq received\n");
+		occ_interrupt();
 	if (val & PSIHB_IRQ_STAT_FSI)
 		printf("PSI: FSI irq received\n");
 	if (val & PSIHB_IRQ_STAT_LPC)