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Diffstat (limited to 'arch/sh/include/asm/irq.h')
-rw-r--r--arch/sh/include/asm/irq.h24
1 files changed, 8 insertions, 16 deletions
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h
index 45d08b6a5ef..0e4f532e473 100644
--- a/arch/sh/include/asm/irq.h
+++ b/arch/sh/include/asm/irq.h
@@ -5,12 +5,15 @@
#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.
+ * Only legacy non-sparseirq platforms have to set a reasonably sane
+ * value here. sparseirq platforms allocate their irq_descs on the fly,
+ * so will expand automatically based on the number of registered IRQs.
*/
-#define NR_IRQS 512
-#define NR_IRQS_LEGACY 8 /* Legacy external IRQ0-7 */
+#ifdef CONFIG_SPARSE_IRQ
+# define NR_IRQS 8
+#else
+# define NR_IRQS 512
+#endif
/*
* This is a special IRQ number for indicating that no IRQ has been
@@ -21,17 +24,6 @@
#define NO_IRQ_IGNORE ((unsigned int)-1)
/*
- * 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);