fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-sparc64 / hardirq.h

diff --git a/include/asm-sparc64/hardirq.h b/include/asm-sparc64/hardirq.h
index b57dd3d..7c29fd1 100644 (file)
--- a/include/asm-sparc64/hardirq.h
+++ b/include/asm-sparc64/hardirq.h
@@ -1,103 +1,19 @@
 /* hardirq.h: 64-bit Sparc hard IRQ support.
  *
- * Copyright (C) 1997, 1998 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1997, 1998, 2005 David S. Miller (davem@davemloft.net)
  */
 
 #ifndef __SPARC64_HARDIRQ_H
 #define __SPARC64_HARDIRQ_H
 
-#include <linux/config.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
-#include <linux/cache.h>
+#include <asm/cpudata.h>
 
-/* rtrap.S is sensitive to the offsets of these fields */
-typedef struct {
-       unsigned int __softirq_pending;
-} ____cacheline_aligned irq_cpustat_t;
+#define __ARCH_IRQ_STAT
+#define local_softirq_pending() \
+       (local_cpu_data().__softirq_pending)
 
-#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+void ack_bad_irq(unsigned int irq);
 
-/*
- * 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 16-23 are the hardirq count (max # of hardirqs: 256)
- *
- * - ( bit 26 is the PREEMPT_ACTIVE flag. )
- *
- * PREEMPT_MASK: 0x000000ff
- * SOFTIRQ_MASK: 0x0000ff00
- * HARDIRQ_MASK: 0x00ff0000
- */
-
-#define PREEMPT_BITS   8
-#define SOFTIRQ_BITS   8
 #define HARDIRQ_BITS   8
 
-#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 all IRQ sources in the system
- * nesting on a single CPU:
- */
-#if (1 << HARDIRQ_BITS) < NR_IRQS
-# 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
-# include <linux/smp_lock.h>
-# define in_atomic()   ((preempt_count() & ~PREEMPT_ACTIVE) != 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 /* !(__SPARC64_HARDIRQ_H) */