diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2011-02-22 21:07:39 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-23 22:27:53 +0100 |
| commit | 19c4f5f7f7e9c5db89a91627af2a426cfb5568de (patch) | |
| tree | 43bf09fbf1fb330dc324f7a302566dd24ba8e7aa /arch/x86/include | |
| parent | df2634f43f5106947f3735a0b61a6527a4b278cd (diff) | |
x86: dtb: Add irq domain abstraction
The here introduced irq_domain abstraction represents a generic irq
controller. It is a subset of powerpc's irq_host which is going to be
renamed to irq_domain and then become generic. This implementation will
be removed once it is generic.
The xlate callback is resposible to parse irq informations like irq type
and number and returns the hardware irq number which is reported by the
hardware as active.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: sodaville@linutronix.de
Cc: devicetree-discuss@lists.ozlabs.org
LKML-Reference: <1298405266-1624-5-git-send-email-bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/irq_controller.h | 12 | ||||
| -rw-r--r-- | arch/x86/include/asm/prom.h | 2 |
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq_controller.h b/arch/x86/include/asm/irq_controller.h new file mode 100644 index 00000000000..423bbbddf36 --- /dev/null +++ b/arch/x86/include/asm/irq_controller.h @@ -0,0 +1,12 @@ +#ifndef __IRQ_CONTROLLER__ +#define __IRQ_CONTROLLER__ + +struct irq_domain { + int (*xlate)(struct irq_domain *h, const u32 *intspec, u32 intsize, + u32 *out_hwirq, u32 *out_type); + void *priv; + struct device_node *controller; + struct list_head l; +}; + +#endif diff --git a/arch/x86/include/asm/prom.h b/arch/x86/include/asm/prom.h index e46f2a2b57a..83833ac33dd 100644 --- a/arch/x86/include/asm/prom.h +++ b/arch/x86/include/asm/prom.h @@ -20,9 +20,11 @@ #include <asm/irq.h> #include <asm/atomic.h> #include <asm/setup.h> +#include <asm/irq_controller.h> #ifdef CONFIG_OF extern void add_dtb(u64 data); +void add_interrupt_host(struct irq_domain *ih); #else static inline void add_dtb(u64 data) { } #endif |