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Subject[PATCH 21/27] m68k/apollo: Convert Apollo to genirq
Date
Replace the custom user vector interrupt handler that calls do_IRQ() and
does an EOI by handle_fasteoi_irq().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter De Schrijver <p2@debian.org>
---
arch/m68k/Kconfig | 1 -
arch/m68k/apollo/dn_ints.c | 25 +++++++++++++++++++++++--
2 files changed, 23 insertions(+), 3 deletions(-)
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 8ae37a8..f2dc708 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -87,7 +87,6 @@ config MMU_SUN3
config USE_GENERIC_HARDIRQS
bool "Use genirq"
depends on MMU
- depends on !APOLLO
depends on !SUN3X
depends on !Q40
depends on !SUN3
diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c
index 4b76431..fc190b3 100644
--- a/arch/m68k/apollo/dn_ints.c
+++ b/arch/m68k/apollo/dn_ints.c
@@ -1,9 +1,14 @@
#include <linux/interrupt.h>
-
+#ifdef CONFIG_GENERIC_HARDIRQS
+#include <linux/irq.h>
+#else
#include <asm/irq.h>
+#endif
+
#include <asm/traps.h>
#include <asm/apollohw.h>

+#ifndef CONFIG_GENERIC_HARDIRQS
void dn_process_int(unsigned int irq, struct pt_regs *fp)
{
do_IRQ(irq, fp);
@@ -11,6 +16,7 @@ void dn_process_int(unsigned int irq, struct pt_regs *fp)
*(volatile unsigned char *)(pica)=0x20;
*(volatile unsigned char *)(picb)=0x20;
}
+#endif

unsigned int apollo_irq_startup(struct irq_data *data)
{
@@ -33,16 +39,31 @@ void apollo_irq_shutdown(struct irq_data *data)
*(volatile unsigned char *)(picb+1) |= (1 << (irq - 8));
}

+#ifdef CONFIG_GENERIC_HARDIRQS
+void apollo_irq_eoi(struct irq_data *data)
+{
+ *(volatile unsigned char *)(pica) = 0x20;
+ *(volatile unsigned char *)(picb) = 0x20;
+}
+#endif
+
static struct irq_chip apollo_irq_chip = {
.name = "apollo",
.irq_startup = apollo_irq_startup,
.irq_shutdown = apollo_irq_shutdown,
+#ifdef CONFIG_GENERIC_HARDIRQS
+ .irq_eoi = apollo_irq_eoi,
+#endif
};


void __init dn_init_IRQ(void)
{
+#ifdef CONFIG_GENERIC_HARDIRQS
+ m68k_setup_user_interrupt(VEC_USER + 96, 16, NULL);
+#else
m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int);
- m68k_setup_irq_controller(&apollo_irq_chip, handle_simple_irq,
+#endif
+ m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq,
IRQ_APOLLO, 16);
}
--
1.7.0.4


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