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D7698.1789718367.diff
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Index: head/sys/arm/arm/gic.c
===================================================================
--- head/sys/arm/arm/gic.c
+++ head/sys/arm/arm/gic.c
@@ -835,6 +835,26 @@
#endif
static int
+gic_map_msi(device_t dev, struct intr_map_data_msi *msi_data, u_int *irqp,
+ enum intr_polarity *polp, enum intr_trigger *trigp)
+{
+ struct gic_irqsrc *gi;
+
+ /* Map a non-GICv2m MSI */
+ gi = (struct gic_irqsrc *)msi_data->isrc;
+ if (gi == NULL)
+ return (ENXIO);
+
+ *irqp = gi->gi_irq;
+
+ /* MSI/MSI-X interrupts are always edge triggered with high polarity */
+ *polp = INTR_POLARITY_HIGH;
+ *trigp = INTR_TRIGGER_EDGE;
+
+ return (0);
+}
+
+static int
gic_map_intr(device_t dev, struct intr_map_data *data, u_int *irqp,
enum intr_polarity *polp, enum intr_trigger *trigp)
{
@@ -842,6 +862,7 @@
enum intr_polarity pol;
enum intr_trigger trig;
struct arm_gic_softc *sc;
+ struct intr_map_data_msi *dam;
#ifdef FDT
struct intr_map_data_fdt *daf;
#endif
@@ -860,6 +881,12 @@
__func__));
break;
#endif
+ case INTR_MAP_DATA_MSI:
+ /* Non-GICv2m MSI */
+ dam = (struct intr_map_data_msi *)data;
+ if (gic_map_msi(dev, dam, &irq, &pol, &trig) != 0)
+ return (EINVAL);
+ break;
default:
return (ENOTSUP);
}
@@ -907,6 +934,7 @@
enum intr_polarity pol;
if ((gi->gi_flags & GI_FLAG_MSI) == GI_FLAG_MSI) {
+ /* GICv2m MSI */
pol = gi->gi_pol;
trig = gi->gi_trig;
KASSERT(pol == INTR_POLARITY_HIGH,
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D7698.1789718367.diff (1 KB)
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D7698: Add support for SPI-mapped MSI interrupts outside of GICv2m
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