So far our IRQ handler routine checks that the received IRQ is actually
the one SGI (IPI) that we are using for our testing.
To make the IRQ testing routine more versatile, also allow the IRQ to be
one test SPI (shared interrupt).
We use the penultimate IRQ of the first SPI group for that purpose.
Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
---
arm/gic.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arm/gic.c b/arm/gic.c
index eca9188..c909668 100644
--- a/arm/gic.c
+++ b/arm/gic.c
@@ -23,6 +23,7 @@
#define IPI_SENDER 1
#define IPI_IRQ 1
+#define SPI_IRQ (GIC_FIRST_SPI + 30)
struct gic {
struct {
@@ -162,8 +163,12 @@ static void irq_handler(struct pt_regs *regs __unused)
smp_rmb(); /* pairs with wmb in stats_reset */
++acked[smp_processor_id()];
- check_ipi_sender(irqstat);
- check_irqnr(irqnr, IPI_IRQ);
+ if (irqnr < GIC_NR_PRIVATE_IRQS) {
+ check_ipi_sender(irqstat);
+ check_irqnr(irqnr, IPI_IRQ);
+ } else {
+ check_irqnr(irqnr, SPI_IRQ);
+ }
smp_wmb(); /* pairs with rmb in check_acked */
}
--
2.17.1
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