/* entry.S is sensitive to the offsets of these fields */
typedef struct {
unsigned long __softirq_pending;
- unsigned int __syscall_count;
- unsigned long idle_timestamp;
- struct task_struct * __ksoftirqd_task;
} ____cacheline_aligned irq_cpustat_t;
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
-/*
- * We put the hardirq and softirq counter into the preemption
- * counter. The bitmask has the following meaning:
- *
- * - bits 0-7 are the preemption count (max preemption depth: 256)
- * - bits 8-15 are the softirq count (max # of softirqs: 256)
- * - bits 16-27 are the hardirq count (max # of hardirqs: 4096)
- *
- * - ( bit 30 is the PREEMPT_ACTIVE flag. )
- *
- * PREEMPT_MASK: 0x000000ff
- * SOFTIRQ_MASK: 0x0000ff00
- * HARDIRQ_MASK: 0x0fff0000
- */
-
-#define PREEMPT_BITS 8
-#define SOFTIRQ_BITS 8
#define HARDIRQ_BITS 12
-#define PREEMPT_SHIFT 0
-#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS)
-#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS)
-
/*
* The hardirq mask has to be large enough to have
* space for potentially nestable IRQ sources in the system
#error HARDIRQ_BITS is too low!
#endif
-#define irq_enter() (preempt_count() += HARDIRQ_OFFSET)
-#define irq_exit() \
-do { \
- preempt_count() -= IRQ_EXIT_OFFSET; \
- if (!in_interrupt() && \
- softirq_pending(smp_processor_id())) \
- do_softirq(); \
- preempt_enable_no_resched(); \
-} while (0)
-
#endif /* _ALPHA_HARDIRQ_H */