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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-07 09:55:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 09:55:03 +0100
commit4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch)
treed240e4d40357583e3f3eb228dccf20122a5b31ed /arch/sh/include/asm/irq.h
parentf44f82e8a20b98558486eb14497b2f71c78fa325 (diff)
parent64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Diffstat (limited to 'arch/sh/include/asm/irq.h')
-rw-r--r--arch/sh/include/asm/irq.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h
new file mode 100644
index 00000000000..6195a531c1b
--- /dev/null
+++ b/arch/sh/include/asm/irq.h
@@ -0,0 +1,57 @@
+#ifndef __ASM_SH_IRQ_H
+#define __ASM_SH_IRQ_H
+
+#include <asm/machvec.h>
+
+/*
+ * A sane default based on a reasonable vector table size, platforms are
+ * advised to cap this at the hard limit that they're interested in
+ * through the machvec.
+ */
+#define NR_IRQS 256
+
+/*
+ * Convert back and forth between INTEVT and IRQ values.
+ */
+#ifdef CONFIG_CPU_HAS_INTEVT
+#define evt2irq(evt) (((evt) >> 5) - 16)
+#define irq2evt(irq) (((irq) + 16) << 5)
+#else
+#define evt2irq(evt) (evt)
+#define irq2evt(irq) (irq)
+#endif
+
+/*
+ * Simple Mask Register Support
+ */
+extern void make_maskreg_irq(unsigned int irq);
+extern unsigned short *irq_mask_register;
+
+/*
+ * PINT IRQs
+ */
+void init_IRQ_pint(void);
+void make_imask_irq(unsigned int irq);
+
+static inline int generic_irq_demux(int irq)
+{
+ return irq;
+}
+
+#define irq_canonicalize(irq) (irq)
+#define irq_demux(irq) sh_mv.mv_irq_demux(irq)
+
+#ifdef CONFIG_IRQSTACKS
+extern void irq_ctx_init(int cpu);
+extern void irq_ctx_exit(int cpu);
+# define __ARCH_HAS_DO_SOFTIRQ
+#else
+# define irq_ctx_init(cpu) do { } while (0)
+# define irq_ctx_exit(cpu) do { } while (0)
+#endif
+
+#ifdef CONFIG_CPU_SH5
+#include <cpu/irq.h>
+#endif
+
+#endif /* __ASM_SH_IRQ_H */