C++ (Cpp) csr_set Examples

Example #1

File: irq.c Project: cambridgehackers/riscv-linux-4.1.y

static void riscv_irq_unmask(struct irq_data *d)
{
	switch (d->irq) {
	case IRQ_TIMER: 
		csr_set(sie, SIE_STIE);
		break;
	case IRQ_SOFTWARE: 
		csr_set(sie, SIE_SSIE);
		break;
	default:
		BUG();
	}
}

Example #2

File: htif.c Project: hmatyschok/MeshBSD

static int
htif_attach(device_t dev)
{
    struct htif_softc *sc;
    int error;

    sc = device_get_softc(dev);
    sc->dev = dev;

    if (bus_alloc_resources(dev, htif_spec, sc->res)) {
        device_printf(dev, "could not allocate resources\n");
        return (ENXIO);
    }

    /* Setup IRQs handler */
    error = bus_setup_intr(dev, sc->res[0], INTR_TYPE_CLK,
                           htif_intr, NULL, sc, &sc->ihl[0]);
    if (error) {
        device_printf(dev, "Unable to alloc int resource.\n");
        return (ENXIO);
    }

    csr_set(sie, SIE_SSIE);

    return (htif_enumerate(sc));
}

Example #3

File: cpu.c Project: CogSystems/u-boot

int arch_cpu_init_dm(void)
{
	int ret;

	ret = riscv_cpu_probe();
	if (ret)
		return ret;

	/* Enable FPU */
	if (supports_extension('d') || supports_extension('f')) {
		csr_set(MODE_PREFIX(status), MSTATUS_FS);
		csr_write(fcsr, 0);
	}

	if (CONFIG_IS_ENABLED(RISCV_MMODE)) {
		/*
		 * Enable perf counters for cycle, time,
		 * and instret counters only
		 */
		csr_write(mcounteren, GENMASK(2, 0));

		/* Disable paging */
		if (supports_extension('s'))
			csr_write(satp, 0);
	}

	return 0;
}