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sh: Cleanup IRQ disabling for hardirq handlers.

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The generic hardirq layer already takes care of a lot of the
appropriate locking and disabling for us, no need to duplicate
it in the handlers..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2006-09-27 18:03:34 +09:00
parent ba463937ef
commit 8599cf0592
15 changed files with 38 additions and 156 deletions
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7
arch/sh/boards/dreamcast/irq.c
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@ -10,7 +10,6 @@
*/
#include <linux/irq.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/dreamcast/sysasic.h>
@ -57,29 +56,23 @@
/* Disable the hardware event by masking its bit in its EMR */
static inline void disable_systemasic_irq(unsigned int irq)
{
unsigned long flags;
__u32 emr = EMR_BASE + (LEVEL(irq) << 4) + (LEVEL(irq) << 2);
__u32 mask;
local_irq_save(flags);
mask = inl(emr);
mask &= ~(1 << EVENT_BIT(irq));
outl(mask, emr);
local_irq_restore(flags);
}
/* Enable the hardware event by setting its bit in its EMR */
static inline void enable_systemasic_irq(unsigned int irq)
{
unsigned long flags;
__u32 emr = EMR_BASE + (LEVEL(irq) << 4) + (LEVEL(irq) << 2);
__u32 mask;
local_irq_save(flags);
mask = inl(emr);
mask |= (1 << EVENT_BIT(irq));
outl(mask, emr);
local_irq_restore(flags);
}
/* Acknowledge a hardware event by writing its bit back to its ESR */