mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 01:49:36 +00:00
![Marc Zyngier](/assets/img/avatar_default.png)
A number of architectures implement IPI statistics directly, duplicating the core kstat_irqs accounting. As we move IPIs to being actual IRQs, we would end-up with a confusing display in /proc/interrupts (where the IPIs would appear twice). In order to solve this, allow interrupts to be flagged as "hidden", which excludes them from /proc/interrupts. Reviewed-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
176 lines
4.6 KiB
C
176 lines
4.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Internal header to deal with irq_desc->status which will be renamed
|
|
* to irq_desc->settings.
|
|
*/
|
|
enum {
|
|
_IRQ_DEFAULT_INIT_FLAGS = IRQ_DEFAULT_INIT_FLAGS,
|
|
_IRQ_PER_CPU = IRQ_PER_CPU,
|
|
_IRQ_LEVEL = IRQ_LEVEL,
|
|
_IRQ_NOPROBE = IRQ_NOPROBE,
|
|
_IRQ_NOREQUEST = IRQ_NOREQUEST,
|
|
_IRQ_NOTHREAD = IRQ_NOTHREAD,
|
|
_IRQ_NOAUTOEN = IRQ_NOAUTOEN,
|
|
_IRQ_MOVE_PCNTXT = IRQ_MOVE_PCNTXT,
|
|
_IRQ_NO_BALANCING = IRQ_NO_BALANCING,
|
|
_IRQ_NESTED_THREAD = IRQ_NESTED_THREAD,
|
|
_IRQ_PER_CPU_DEVID = IRQ_PER_CPU_DEVID,
|
|
_IRQ_IS_POLLED = IRQ_IS_POLLED,
|
|
_IRQ_DISABLE_UNLAZY = IRQ_DISABLE_UNLAZY,
|
|
_IRQ_HIDDEN = IRQ_HIDDEN,
|
|
_IRQF_MODIFY_MASK = IRQF_MODIFY_MASK,
|
|
};
|
|
|
|
#define IRQ_PER_CPU GOT_YOU_MORON
|
|
#define IRQ_NO_BALANCING GOT_YOU_MORON
|
|
#define IRQ_LEVEL GOT_YOU_MORON
|
|
#define IRQ_NOPROBE GOT_YOU_MORON
|
|
#define IRQ_NOREQUEST GOT_YOU_MORON
|
|
#define IRQ_NOTHREAD GOT_YOU_MORON
|
|
#define IRQ_NOAUTOEN GOT_YOU_MORON
|
|
#define IRQ_NESTED_THREAD GOT_YOU_MORON
|
|
#define IRQ_PER_CPU_DEVID GOT_YOU_MORON
|
|
#define IRQ_IS_POLLED GOT_YOU_MORON
|
|
#define IRQ_DISABLE_UNLAZY GOT_YOU_MORON
|
|
#define IRQ_HIDDEN GOT_YOU_MORON
|
|
#undef IRQF_MODIFY_MASK
|
|
#define IRQF_MODIFY_MASK GOT_YOU_MORON
|
|
|
|
static inline void
|
|
irq_settings_clr_and_set(struct irq_desc *desc, u32 clr, u32 set)
|
|
{
|
|
desc->status_use_accessors &= ~(clr & _IRQF_MODIFY_MASK);
|
|
desc->status_use_accessors |= (set & _IRQF_MODIFY_MASK);
|
|
}
|
|
|
|
static inline bool irq_settings_is_per_cpu(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_PER_CPU;
|
|
}
|
|
|
|
static inline bool irq_settings_is_per_cpu_devid(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_PER_CPU_DEVID;
|
|
}
|
|
|
|
static inline void irq_settings_set_per_cpu(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors |= _IRQ_PER_CPU;
|
|
}
|
|
|
|
static inline void irq_settings_set_no_balancing(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors |= _IRQ_NO_BALANCING;
|
|
}
|
|
|
|
static inline bool irq_settings_has_no_balance_set(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_NO_BALANCING;
|
|
}
|
|
|
|
static inline u32 irq_settings_get_trigger_mask(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & IRQ_TYPE_SENSE_MASK;
|
|
}
|
|
|
|
static inline void
|
|
irq_settings_set_trigger_mask(struct irq_desc *desc, u32 mask)
|
|
{
|
|
desc->status_use_accessors &= ~IRQ_TYPE_SENSE_MASK;
|
|
desc->status_use_accessors |= mask & IRQ_TYPE_SENSE_MASK;
|
|
}
|
|
|
|
static inline bool irq_settings_is_level(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_LEVEL;
|
|
}
|
|
|
|
static inline void irq_settings_clr_level(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors &= ~_IRQ_LEVEL;
|
|
}
|
|
|
|
static inline void irq_settings_set_level(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors |= _IRQ_LEVEL;
|
|
}
|
|
|
|
static inline bool irq_settings_can_request(struct irq_desc *desc)
|
|
{
|
|
return !(desc->status_use_accessors & _IRQ_NOREQUEST);
|
|
}
|
|
|
|
static inline void irq_settings_clr_norequest(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors &= ~_IRQ_NOREQUEST;
|
|
}
|
|
|
|
static inline void irq_settings_set_norequest(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors |= _IRQ_NOREQUEST;
|
|
}
|
|
|
|
static inline bool irq_settings_can_thread(struct irq_desc *desc)
|
|
{
|
|
return !(desc->status_use_accessors & _IRQ_NOTHREAD);
|
|
}
|
|
|
|
static inline void irq_settings_clr_nothread(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors &= ~_IRQ_NOTHREAD;
|
|
}
|
|
|
|
static inline void irq_settings_set_nothread(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors |= _IRQ_NOTHREAD;
|
|
}
|
|
|
|
static inline bool irq_settings_can_probe(struct irq_desc *desc)
|
|
{
|
|
return !(desc->status_use_accessors & _IRQ_NOPROBE);
|
|
}
|
|
|
|
static inline void irq_settings_clr_noprobe(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors &= ~_IRQ_NOPROBE;
|
|
}
|
|
|
|
static inline void irq_settings_set_noprobe(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors |= _IRQ_NOPROBE;
|
|
}
|
|
|
|
static inline bool irq_settings_can_move_pcntxt(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_MOVE_PCNTXT;
|
|
}
|
|
|
|
static inline bool irq_settings_can_autoenable(struct irq_desc *desc)
|
|
{
|
|
return !(desc->status_use_accessors & _IRQ_NOAUTOEN);
|
|
}
|
|
|
|
static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_NESTED_THREAD;
|
|
}
|
|
|
|
static inline bool irq_settings_is_polled(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_IS_POLLED;
|
|
}
|
|
|
|
static inline bool irq_settings_disable_unlazy(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_DISABLE_UNLAZY;
|
|
}
|
|
|
|
static inline void irq_settings_clr_disable_unlazy(struct irq_desc *desc)
|
|
{
|
|
desc->status_use_accessors &= ~_IRQ_DISABLE_UNLAZY;
|
|
}
|
|
|
|
static inline bool irq_settings_is_hidden(struct irq_desc *desc)
|
|
{
|
|
return desc->status_use_accessors & _IRQ_HIDDEN;
|
|
}
|