net_dma: call dmaengine_get only if NET_DMA enabled

[safe/jmp/linux-2.6] / include / linux / interrupt.h

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index c3db4a0..9127f6b 100644 (file)
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -8,9 +8,13 @@
 #include <linux/preempt.h>
 #include <linux/cpumask.h>
 #include <linux/irqreturn.h>
+#include <linux/irqnr.h>
 #include <linux/hardirq.h>
 #include <linux/sched.h>
 #include <linux/irqflags.h>
+#include <linux/smp.h>
+#include <linux/percpu.h>
+
 #include <asm/atomic.h>
 #include <asm/ptrace.h>
 #include <asm/system.h>
@@ -102,6 +106,30 @@ extern void disable_irq_nosync(unsigned int irq);
 extern void disable_irq(unsigned int irq);
 extern void enable_irq(unsigned int irq);
 
+#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
+
+extern cpumask_var_t irq_default_affinity;
+
+extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask);
+extern int irq_can_set_affinity(unsigned int irq);
+extern int irq_select_affinity(unsigned int irq);
+
+#else /* CONFIG_SMP */
+
+static inline int irq_set_affinity(unsigned int irq, const struct cpumask *m)
+{
+       return -EINVAL;
+}
+
+static inline int irq_can_set_affinity(unsigned int irq)
+{
+       return 0;
+}
+
+static inline int irq_select_affinity(unsigned int irq)  { return 0; }
+
+#endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */
+
 #ifdef CONFIG_GENERIC_HARDIRQS
 /*
  * Special lockdep variants of irq disabling/enabling.
@@ -199,35 +227,6 @@ static inline int disable_irq_wake(unsigned int irq)
 #define or_softirq_pending(x)  (local_softirq_pending() |= (x))
 #endif
 
-/*
- * Temporary defines for UP kernels, until all code gets fixed.
- */
-#ifndef CONFIG_SMP
-static inline void __deprecated cli(void)
-{
-       local_irq_disable();
-}
-static inline void __deprecated sti(void)
-{
-       local_irq_enable();
-}
-static inline void __deprecated save_flags(unsigned long *x)
-{
-       local_save_flags(*x);
-}
-#define save_flags(x) save_flags(&x)
-static inline void __deprecated restore_flags(unsigned long x)
-{
-       local_irq_restore(x);
-}
-
-static inline void __deprecated save_and_cli(unsigned long *x)
-{
-       local_irq_save(*x);
-}
-#define save_and_cli(x)        save_and_cli(&x)
-#endif /* CONFIG_SMP */
-
 /* Some architectures might implement lazy enabling/disabling of
  * interrupts. In some cases, such as stop_machine, we might want
  * to ensure that after a local_irq_disable(), interrupts have
@@ -253,10 +252,10 @@ enum
        BLOCK_SOFTIRQ,
        TASKLET_SOFTIRQ,
        SCHED_SOFTIRQ,
-#ifdef CONFIG_HIGH_RES_TIMERS
        HRTIMER_SOFTIRQ,
-#endif
-       RCU_SOFTIRQ,    /* Preferable RCU should always be the last softirq */
+       RCU_SOFTIRQ,    /* Preferable RCU should always be the last softirq */
+
+       NR_SOFTIRQS
 };
 
 /* softirq mask and active fields moved to irq_cpustat_t in
@@ -266,16 +265,35 @@ enum
 struct softirq_action
 {
        void    (*action)(struct softirq_action *);
-       void    *data;
 };
 
 asmlinkage void do_softirq(void);
-extern void open_softirq(int nr, void (*action)(struct softirq_action*), void *data);
+asmlinkage void __do_softirq(void);
+extern void open_softirq(int nr, void (*action)(struct softirq_action *));
 extern void softirq_init(void);
 #define __raise_softirq_irqoff(nr) do { or_softirq_pending(1UL << (nr)); } while (0)
-extern void FASTCALL(raise_softirq_irqoff(unsigned int nr));
-extern void FASTCALL(raise_softirq(unsigned int nr));
+extern void raise_softirq_irqoff(unsigned int nr);
+extern void raise_softirq(unsigned int nr);
+
+/* This is the worklist that queues up per-cpu softirq work.
+ *
+ * send_remote_sendirq() adds work to these lists, and
+ * the softirq handler itself dequeues from them.  The queues
+ * are protected by disabling local cpu interrupts and they must
+ * only be accessed by the local cpu that they are for.
+ */
+DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list);
+
+/* Try to send a softirq to a remote cpu.  If this cannot be done, the
+ * work will be queued to the local cpu.
+ */
+extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq);
 
+/* Like send_remote_softirq(), but the caller must disable local cpu interrupts
+ * and compute the current cpu, passed in as 'this_cpu'.
+ */
+extern void __send_remote_softirq(struct call_single_data *cp, int cpu,
+                                 int this_cpu, int softirq);
 
 /* Tasklets --- multithreaded analogue of BHs.
 
@@ -341,7 +359,7 @@ static inline void tasklet_unlock_wait(struct tasklet_struct *t)
 #define tasklet_unlock(t) do { } while (0)
 #endif
 
-extern void FASTCALL(__tasklet_schedule(struct tasklet_struct *t));
+extern void __tasklet_schedule(struct tasklet_struct *t);
 
 static inline void tasklet_schedule(struct tasklet_struct *t)
 {
@@ -349,7 +367,7 @@ static inline void tasklet_schedule(struct tasklet_struct *t)
                __tasklet_schedule(t);
 }
 
-extern void FASTCALL(__tasklet_hi_schedule(struct tasklet_struct *t));
+extern void __tasklet_hi_schedule(struct tasklet_struct *t);
 
 static inline void tasklet_hi_schedule(struct tasklet_struct *t)
 {
@@ -444,4 +462,12 @@ static inline void init_irq_proc(void)
 }
 #endif
 
+int show_interrupts(struct seq_file *p, void *v);
+
+struct irq_desc;
+
+extern int early_irq_init(void);
+extern int arch_early_irq_init(void);
+extern int arch_init_chip_data(struct irq_desc *desc, int cpu);
+
 #endif