diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/interrupt.h | 3 | ||||
| -rw-r--r-- | include/linux/irq.h | 42 |
2 files changed, 28 insertions, 17 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 5a8ba0b8ccb..690113d0769 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -42,6 +42,8 @@ * IRQF_SHARED - allow sharing the irq among several devices * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur * IRQF_TIMER - Flag to mark this interrupt as timer interrupt + * IRQF_PERCPU - Interrupt is per cpu + * IRQF_NOBALANCING - Flag to exclude this interrupt from irq balancing */ #define IRQF_DISABLED 0x00000020 #define IRQF_SAMPLE_RANDOM 0x00000040 @@ -49,6 +51,7 @@ #define IRQF_PROBE_SHARED 0x00000100 #define IRQF_TIMER 0x00000200 #define IRQF_PERCPU 0x00000400 +#define IRQF_NOBALANCING 0x00000800 /* * Migration helpers. Scheduled for removal in 1/2007 diff --git a/include/linux/irq.h b/include/linux/irq.h index 5504b671357..8930fb0ac9c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -31,7 +31,7 @@ typedef void fastcall (*irq_flow_handler_t)(unsigned int irq, /* * IRQ line status. * - * Bits 0-16 are reserved for the IRQF_* bits in linux/interrupt.h + * Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h * * IRQ types */ @@ -45,28 +45,31 @@ typedef void fastcall (*irq_flow_handler_t)(unsigned int irq, #define IRQ_TYPE_PROBE 0x00000010 /* Probing in progress */ /* Internal flags */ -#define IRQ_INPROGRESS 0x00010000 /* IRQ handler active - do not enter! */ -#define IRQ_DISABLED 0x00020000 /* IRQ disabled - do not enter! */ -#define IRQ_PENDING 0x00040000 /* IRQ pending - replay on enable */ -#define IRQ_REPLAY 0x00080000 /* IRQ has been replayed but not acked yet */ -#define IRQ_AUTODETECT 0x00100000 /* IRQ is being autodetected */ -#define IRQ_WAITING 0x00200000 /* IRQ not yet seen - for autodetection */ -#define IRQ_LEVEL 0x00400000 /* IRQ level triggered */ -#define IRQ_MASKED 0x00800000 /* IRQ masked - shouldn't be seen again */ -#define IRQ_PER_CPU 0x01000000 /* IRQ is per CPU */ +#define IRQ_INPROGRESS 0x00000100 /* IRQ handler active - do not enter! */ +#define IRQ_DISABLED 0x00000200 /* IRQ disabled - do not enter! */ +#define IRQ_PENDING 0x00000400 /* IRQ pending - replay on enable */ +#define IRQ_REPLAY 0x00000800 /* IRQ has been replayed but not acked yet */ +#define IRQ_AUTODETECT 0x00001000 /* IRQ is being autodetected */ +#define IRQ_WAITING 0x00002000 /* IRQ not yet seen - for autodetection */ +#define IRQ_LEVEL 0x00004000 /* IRQ level triggered */ +#define IRQ_MASKED 0x00008000 /* IRQ masked - shouldn't be seen again */ +#define IRQ_PER_CPU 0x00010000 /* IRQ is per CPU */ +#define IRQ_NOPROBE 0x00020000 /* IRQ is not valid for probing */ +#define IRQ_NOREQUEST 0x00040000 /* IRQ cannot be requested */ +#define IRQ_NOAUTOEN 0x00080000 /* IRQ will not be enabled on request irq */ +#define IRQ_DELAYED_DISABLE 0x00100000 /* IRQ disable (masking) happens delayed. */ +#define IRQ_WAKEUP 0x00200000 /* IRQ triggers system wakeup */ +#define IRQ_MOVE_PENDING 0x00400000 /* need to re-target IRQ destination */ +#define IRQ_NO_BALANCING 0x00800000 /* IRQ is excluded from balancing */ + #ifdef CONFIG_IRQ_PER_CPU # define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU) +# define IRQ_NO_BALANCING_MASK (IRQ_PER_CPU | IRQ_NO_BALANCING) #else # define CHECK_IRQ_PER_CPU(var) 0 +# define IRQ_NO_BALANCING_MASK IRQ_NO_BALANCING #endif -#define IRQ_NOPROBE 0x02000000 /* IRQ is not valid for probing */ -#define IRQ_NOREQUEST 0x04000000 /* IRQ cannot be requested */ -#define IRQ_NOAUTOEN 0x08000000 /* IRQ will not be enabled on request irq */ -#define IRQ_DELAYED_DISABLE 0x10000000 /* IRQ disable (masking) happens delayed. */ -#define IRQ_WAKEUP 0x20000000 /* IRQ triggers system wakeup */ -#define IRQ_MOVE_PENDING 0x40000000 /* need to re-target IRQ destination */ - struct proc_dir_entry; struct msi_desc; @@ -261,6 +264,11 @@ static inline int select_smp_affinity(unsigned int irq) extern int no_irq_affinity; +static inline int irq_balancing_disabled(unsigned int irq) +{ + return irq_desc[irq].status & IRQ_NO_BALANCING_MASK; +} + /* Handle irq action chains: */ extern int handle_IRQ_event(unsigned int irq, struct irqaction *action); |