#ifndef _ALPHA_HARDIRQ_H
#define _ALPHA_HARDIRQ_H
-#include <linux/config.h>
#include <linux/threads.h>
#include <linux/cache.h>
/* 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
- */
+void ack_bad_irq(unsigned int irq);
-#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)
-
-#define __MASK(x) ((1UL << (x))-1)
-
-#define PREEMPT_MASK (__MASK(PREEMPT_BITS) << PREEMPT_SHIFT)
-#define HARDIRQ_MASK (__MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)
-#define SOFTIRQ_MASK (__MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT)
-
-#define hardirq_count() (preempt_count() & HARDIRQ_MASK)
-#define softirq_count() (preempt_count() & SOFTIRQ_MASK)
-#define irq_count() (preempt_count() & (HARDIRQ_MASK | SOFTIRQ_MASK))
-
-#define PREEMPT_OFFSET (1UL << PREEMPT_SHIFT)
-#define SOFTIRQ_OFFSET (1UL << SOFTIRQ_SHIFT)
-#define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT)
-
/*
* 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
-/*
- * Are we doing bottom half or hardware interrupt processing?
- * Are we in a softirq context? Interrupt context?
- */
-#define in_irq() (hardirq_count())
-#define in_softirq() (softirq_count())
-#define in_interrupt() (irq_count())
-
-
-#define hardirq_trylock() (!in_interrupt())
-#define hardirq_endlock() do { } while (0)
-
-#define irq_enter() (preempt_count() += HARDIRQ_OFFSET)
-
-
-#ifdef CONFIG_PREEMPT
-#define in_atomic() (preempt_count() != kernel_locked())
-# define IRQ_EXIT_OFFSET (HARDIRQ_OFFSET-1)
-#else
-#define in_atomic() (preempt_count() != 0)
-#define IRQ_EXIT_OFFSET HARDIRQ_OFFSET
-# endif
-#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)
-
-#ifndef CONFIG_SMP
-# define synchronize_irq(irq) barrier()
-#else
- extern void synchronize_irq(unsigned int irq);
-#endif /* CONFIG_SMP */
-
#endif /* _ALPHA_HARDIRQ_H */