[ARM] 3692/1: ARM: coswitch irq handling to the generic implementation

Patch from Thomas Gleixner

From: Thomas Gleixner <tglx@linutronix.de>

Switch the ARM irq core handling to the generic implementation. The
ARM specific header files now contain mostly migration stubs and
helper macros. Note that each machine type must be converted after
this step seperately. This was seperated out from the patch for easier
review.

The main changes for the machine type code is the conversion of the
type handlers to a 'type flow' and 'chip' model. This affects only the
multiplex interrupt handlers. A conversion macro needs to be added to
those implementations, which defines the data structure which is
registered by the set_irq_chained_handler() macro.

Some minor fixups of include files and the conversion of data
structure access is necessary all over the place.

The mostly macro based conversion was provided to allow an easy
migration of the existing implementations.

The code compiles on all defconfigs available in arch/arm/configs
except those which were broken also before applying the conversion
patches.

The code has been boot and runtime tested on most ARM platforms. The
results of an extensive testing and bugfixing series can be found
at: http://www.linutronix.de/index.php?page=testing

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 16 deletions

diff --git a/include/asm-arm/irq.h b/include/asm-arm/irq.h
index 66e67e60bc56..283af50a16cb 100644
--- a/include/asm-arm/irq.h
+++ b/include/asm-arm/irq.h
@@ -21,18 +21,13 @@
 
 struct irqaction;
 
-extern void disable_irq_nosync(unsigned int);
-extern void disable_irq(unsigned int);
-extern void enable_irq(unsigned int);
-
 /*
- * These correspond with the SA_TRIGGER_* defines, and therefore the
- * IORESOURCE_IRQ_* defines.
+ * Migration helpers
  */
-#define __IRQT_RISEDGE  (1 << 0)
-#define __IRQT_FALEDGE  (1 << 1)
-#define __IRQT_HIGHLVL  (1 << 2)
-#define __IRQT_LOWLVL   (1 << 3)
+#define __IRQT_FALEDGE  IRQ_TYPE_EDGE_FALLING
+#define __IRQT_RISEDGE  IRQ_TYPE_EDGE_RISING
+#define __IRQT_LOWLVL   IRQ_TYPE_LEVEL_LOW
+#define __IRQT_HIGHLVL  IRQ_TYPE_LEVEL_HIGH
 
 #define IRQT_NOEDGE     (0)
 #define IRQT_RISING     (__IRQT_RISEDGE)
@@ -40,12 +35,7 @@ extern void enable_irq(unsigned int);
 #define IRQT_BOTHEDGE   (__IRQT_RISEDGE|__IRQT_FALEDGE)
 #define IRQT_LOW        (__IRQT_LOWLVL)
 #define IRQT_HIGH       (__IRQT_HIGHLVL)
-#define IRQT_PROBE      (1 << 4)
-
-int set_irq_type(unsigned int irq, unsigned int type);
-void disable_irq_wake(unsigned int irq);
-void enable_irq_wake(unsigned int irq);
-int setup_irq(unsigned int, struct irqaction *);
+#define IRQT_PROBE      IRQ_TYPE_PROBE
 
 extern void migrate_irqs(void);
 #endif