| Message ID | 1441513421-8092-2-git-send-email-yangyingliang@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, 6 Sep 2015, Yang Yingliang wrote: > It's expected to use the helper when interrupt can be moved > in process. What's wrong with using the existing helper? irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); Thanks, tglx
On 2015/9/7 6:08, Thomas Gleixner wrote: > On Sun, 6 Sep 2015, Yang Yingliang wrote: > >> It's expected to use the helper when interrupt can be moved >> in process. > > What's wrong with using the existing helper? > > irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); It looks OK. I will use it next version. Thanks, Yang > > Thanks, > > tglx > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > >
diff --git a/include/linux/irq.h b/include/linux/irq.h index 6f8b340..f4ecfb9 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -514,6 +514,7 @@ static inline void irq_set_chip_and_handler(unsigned int irq, struct irq_chip *c } extern int irq_set_percpu_devid(unsigned int irq); +extern int irq_set_move_pcntxt(unsigned int irq); extern void __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 0a2a4b6..c036a1a 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -580,6 +580,18 @@ int irq_set_percpu_devid(unsigned int irq) return 0; } +int irq_set_move_pcntxt(unsigned int irq) +{ + struct irq_desc *desc = irq_to_desc(irq); + + if (!desc) + return -EINVAL; + + irq_settings_set_move_pcntxt(desc); + + return 0; +} + void kstat_incr_irq_this_cpu(unsigned int irq) { kstat_incr_irqs_this_cpu(irq_to_desc(irq)); diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h index 3320b84..ea58bc2 100644 --- a/kernel/irq/settings.h +++ b/kernel/irq/settings.h @@ -135,6 +135,11 @@ static inline void irq_settings_set_noprobe(struct irq_desc *desc) desc->status_use_accessors |= _IRQ_NOPROBE; } +static inline void irq_settings_set_move_pcntxt(struct irq_desc *desc) +{ + desc->status_use_accessors |= _IRQ_MOVE_PCNTXT; +} + static inline bool irq_settings_can_move_pcntxt(struct irq_desc *desc) { return desc->status_use_accessors & _IRQ_MOVE_PCNTXT;
It's expected to use the helper when interrupt can be moved in process. Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Cc: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- include/linux/irq.h | 1 + kernel/irq/irqdesc.c | 12 ++++++++++++ kernel/irq/settings.h | 5 +++++ 3 files changed, 18 insertions(+)