From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.rutland@arm.com (Mark Rutland) Date: Fri, 13 Oct 2017 18:44:23 +0100 Subject: [RESEND PATCH 1/2] irqdesc: Add function to identify percpu_devid irqs In-Reply-To: <1507894005-53778-2-git-send-email-julien.thierry@arm.com> References: <1507894005-53778-1-git-send-email-julien.thierry@arm.com> <1507894005-53778-2-git-send-email-julien.thierry@arm.com> Message-ID: <20171013174422.GA6050@leverpostej> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Thomas, Would you be happy for this patch to be taken via the arm64 tree? The next patch [1] makes use of this in the arm_pmu driver, and we're likely to have some other changes there shortly. Thanks, Mark [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-October/536532.html On Fri, Oct 13, 2017 at 12:26:44PM +0100, Julien Thierry wrote: > irq_is_percpu indicates whether an irq should only target a single cpu. > PERCPU_DEVID flag indicates that an irq can be configured differently on > each cpu it can target. > > Provide a function to check whether an irq is PERCPU_DEVID. > > Signed-off-by: Julien Thierry > Cc: Thomas Gleixner > Cc: Marc Zyngier > --- > include/linux/irqdesc.h | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h > index 3e90a09..93960cf 100644 > --- a/include/linux/irqdesc.h > +++ b/include/linux/irqdesc.h > @@ -244,6 +244,14 @@ static inline int irq_is_percpu(unsigned int irq) > return desc->status_use_accessors & IRQ_PER_CPU; > } > > +static inline int irq_is_percpu_devid(unsigned int irq) > +{ > + struct irq_desc *desc; > + > + desc = irq_to_desc(irq); > + return desc->status_use_accessors & IRQ_PER_CPU_DEVID; > +} > + > static inline void > irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) > { > -- > 1.9.1