On Tue, 24 Jun 2014, Daniel Thompson wrote: > Currently enable_fiq/disable_fiq use a simple offset to convert an IRQ > virq into a FIQ virq. This is too inflexible for multi-platform kernels > and makes runtime error checking impossible. > > We solve this by introducing a flexible mapping that allows interrupt > controllers that support FIQ to register those mappings. This, in turn, > makes it much possible for drivers in DT kernels to install FIQ handlers > without knowing anything about the interrupt controller. > > Signed-off-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx> > Cc: Russell King <linux@xxxxxxxxxxxxxxxx> > Cc: Fabio Estevam <festevam@xxxxxxxxx> > Cc: Nicolas Pitre <nico@xxxxxxxxxx> > --- > arch/arm/include/asm/fiq.h | 7 +++ > arch/arm/kernel/fiq.c | 103 ++++++++++++++++++++++++++++++++++++++++++++- > 2 files changed, 108 insertions(+), 2 deletions(-) [...] > +bool has_fiq(int fiq) > +{ > + struct fiq_data *data = lookup_fiq_data(fiq); > + > + if (data) > + return true; > + > + if (fiq_start == -1) > + return false; > + > + return fiq > fiq_start; Shouldn't this be fiq >= fiq_start ? Other than that... Acked-by: Nicolas Pitre <nico@xxxxxxxxxx> Nicolas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-arm-kernel