D19819.id.diff
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	Index: head/sys/riscv/riscv/plic.c
	===================================================================
	--- head/sys/riscv/riscv/plic.c
	+++ head/sys/riscv/riscv/plic.c
	@@ -249,6 +249,30 @@
	return (intr_pic_claim_root(sc->dev, xref, plic_intr, sc, 0));
	}

	+static void
	+plic_pre_ithread(device_t dev, struct intr_irqsrc *isrc)
	+{
	+ struct plic_softc *sc;
	+ struct plic_irqsrc *src;
	+
	+ sc = device_get_softc(dev);
	+ src = (struct plic_irqsrc *)isrc;
	+
	+ WR4(sc, PLIC_PRIORITY(src->irq), 0);
	+}
	+
	+static void
	+plic_post_ithread(device_t dev, struct intr_irqsrc *isrc)
	+{
	+ struct plic_softc *sc;
	+ struct plic_irqsrc *src;
	+
	+ sc = device_get_softc(dev);
	+ src = (struct plic_irqsrc *)isrc;
	+
	+ WR4(sc, PLIC_PRIORITY(src->irq), 1);
	+}
	+
	static device_method_t plic_methods[] = {
	DEVMETHOD(device_probe, plic_probe),
	DEVMETHOD(device_attach, plic_attach),
	@@ -256,6 +280,8 @@
	DEVMETHOD(pic_disable_intr, plic_disable_intr),
	DEVMETHOD(pic_enable_intr, plic_enable_intr),
	DEVMETHOD(pic_map_intr, plic_map_intr),
	+ DEVMETHOD(pic_pre_ithread, plic_pre_ithread),
	+ DEVMETHOD(pic_post_ithread, plic_post_ithread),

	DEVMETHOD_END
	};