#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H
-#include <linux/config.h>
#include <linux/linkage.h>
+
+#include <asm/mipsmtregs.h>
+
#include <irq.h>
#ifdef CONFIG_I8259
#define irq_canonicalize(irq) (irq) /* Sane hardware, sane code ... */
#endif
-struct pt_regs;
-
-extern asmlinkage unsigned int do_IRQ(unsigned int irq, struct pt_regs *regs);
-
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_MIPS_MT_SMTC
+/*
+ * Clear interrupt mask handling "backstop" if irq_hwmask
+ * entry so indicates. This implies that the ack() or end()
+ * functions will take over re-enabling the low-level mask.
+ * Otherwise it will be done on return from exception.
+ */
+#define __DO_IRQ_SMTC_HOOK(irq) \
+do { \
+ if (irq_hwmask[irq] & 0x0000ff00) \
+ write_c0_tccontext(read_c0_tccontext() & \
+ ~(irq_hwmask[irq] & 0x0000ff00)); \
+} while (0)
+#else
+#define __DO_IRQ_SMTC_HOOK(irq) do { } while (0)
+#endif
/*
* do_IRQ handles all normal device IRQ's (the special
* Ideally there should be away to get this into kernel/irq/handle.c to
* avoid the overhead of a call for just a tiny function ...
*/
-#define do_IRQ(irq, regs) \
+#define do_IRQ(irq) \
do { \
irq_enter(); \
- __do_IRQ((irq), (regs)); \
+ __DO_IRQ_SMTC_HOOK(irq); \
+ generic_handle_irq(irq); \
irq_exit(); \
} while (0)
-#endif
-
extern void arch_init_irq(void);
+extern void spurious_interrupt(void);
+
+#ifdef CONFIG_MIPS_MT_SMTC
+struct irqaction;
+
+extern unsigned long irq_hwmask[];
+extern int setup_irq_smtc(unsigned int irq, struct irqaction * new,
+ unsigned long hwmask);
+#endif /* CONFIG_MIPS_MT_SMTC */
+
+extern int allocate_irqno(void);
+extern void alloc_legacy_irqno(void);
+extern void free_irqno(unsigned int irq);
#endif /* _ASM_IRQ_H */