diff options
| author | Andres Salomon <dilinger@queued.net> | 2010-11-12 05:45:26 +0000 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-12-15 17:11:16 -0800 |
| commit | 4722d194e648fb5755faecee895b96b26f9732f3 (patch) | |
| tree | 979014e339b76798777acc57ae56568c47f56766 | |
| parent | cf7d7e5a1980d1116ee152d25dac382b112b9c17 (diff) | |
x86, of: Define irq functions to allow drivers/of/* to build on x86
- Define a stub irq_create_of_mapping for x86 as a stop-gap solution until
drivers/of/irq is further along.
- Define irq_dispose_mapping for x86 to appease of_i2c.c
These are needed to allow stuff in drivers/of/ to build on x86. This stuff
will eventually get replaced; quoting Grant,
"The long term plan is to have the drivers/of/ code handling the mapping
intelligently like powerpc currently does." But for now, just provide
these functions.
Signed-off-by: Andres Salomon <dilinger@queued.net>
LKML-Reference: <20101111214526.5de7121b@queued.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | arch/x86/include/asm/irq.h | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/irq.c | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index 13b0ebaa512f..8d2c6717a5c3 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -10,6 +10,9 @@ #include <asm/apicdef.h> #include <asm/irq_vectors.h> +/* Even though we don't support this, supply it to appease OF */ +static inline void irq_dispose_mapping(unsigned int virq) { } + static inline int irq_canonicalize(int irq) { return ((irq == 2) ? 9 : irq); diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 83ec0175f986..d833d1b962a5 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -4,6 +4,7 @@ #include <linux/cpu.h> #include <linux/interrupt.h> #include <linux/kernel_stat.h> +#include <linux/of.h> #include <linux/seq_file.h> #include <linux/smp.h> #include <linux/ftrace.h> @@ -275,6 +276,15 @@ void smp_x86_platform_ipi(struct pt_regs *regs) EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq); +#ifdef CONFIG_OF +unsigned int irq_create_of_mapping(struct device_node *controller, + const u32 *intspec, unsigned int intsize) +{ + return intspec[0]; +} +EXPORT_SYMBOL_GPL(irq_create_of_mapping); +#endif + #ifdef CONFIG_HOTPLUG_CPU /* A cpu has been removed from cpu_online_mask. Reset irq affinities. */ void fixup_irqs(void) |