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authorAndres Salomon <dilinger@queued.net>2010-11-12 05:45:26 +0000
committerH. Peter Anvin <hpa@linux.intel.com>2010-12-15 17:11:16 -0800
commit4722d194e648fb5755faecee895b96b26f9732f3 (patch)
tree979014e339b76798777acc57ae56568c47f56766 /arch
parentcf7d7e5a1980d1116ee152d25dac382b112b9c17 (diff)
downloadop-kernel-dev-4722d194e648fb5755faecee895b96b26f9732f3.zip
op-kernel-dev-4722d194e648fb5755faecee895b96b26f9732f3.tar.gz
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/irq.h3
-rw-r--r--arch/x86/kernel/irq.c10
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 13b0eba..8d2c671 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 83ec017..d833d1b 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)
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