> Currently it is not possible to exploit FIQ for systems with a GIC, even > on systems are otherwise capable of it. This patch makes it possible > for IPIs to be delivered using FIQ.
I wonder if gic_set_group_irq() can easily be married with mxc_set_irq_fiq(). The driver sound/soc/fsl/imx-pcm-fiq.c uses mxc_set_irq_fiq() to connect an (assembly) FIQ handler with a hardware IRQ. However, the underlying implementation of mxc_set_irq_fiq() is only supported for TZIC and AVIC (see arch/arm/mach-imx/irq-common.c). On my i.MX6, which doesn't have an AVIC/TZIC but a GIC I could use a method to turn a normal IRQ into a FIQ :-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
