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authorThomas Gleixner <tglx@linutronix.de>2010-09-27 12:45:59 +0000
committerThomas Gleixner <tglx@linutronix.de>2010-10-04 11:01:05 +0200
commitd9817ebeeef16e01487549312c68540ca8f1561b (patch)
tree7bb05550dcd1b4ec2cd6cf92e38d783b6f5e8c9e
parente7ffec1eb178db349c7fbfd647725e9d06619962 (diff)
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genirq: Provide Kconfig
The generic irq Kconfig options are copied around all archs. Provide a generic Kconfig file which can be included. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20100927121843.217333624@linutronix.de> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--init/Kconfig2
-rw-r--r--kernel/irq/Kconfig54
2 files changed, 56 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 2de5b1cbadd..1df1a87cc59 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -332,6 +332,8 @@ config AUDIT_TREE
depends on AUDITSYSCALL
select FSNOTIFY
+source "kernel/irq/Kconfig"
+
menu "RCU Subsystem"
choice
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
new file mode 100644
index 00000000000..e0fc6cd78aa
--- /dev/null
+++ b/kernel/irq/Kconfig
@@ -0,0 +1,54 @@
+config HAVE_GENERIC_HARDIRQS
+ def_bool n
+
+if HAVE_GENERIC_HARDIRQS
+menu "IRQ subsystem"
+#
+# Interrupt subsystem related configuration options
+#
+config GENERIC_HARDIRQS
+ def_bool y
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ def_bool y
+
+# Options selectable by the architecture code
+config HAVE_SPARSE_IRQ
+ def_bool n
+
+config GENERIC_IRQ_PROBE
+ def_bool n
+
+config GENERIC_PENDING_IRQ
+ def_bool n
+
+if SPARSE_IRQ && NUMA
+config NUMA_IRQ_DESC
+ def_bool n
+endif
+
+config AUTO_IRQ_AFFINITY
+ def_bool n
+
+config IRQ_PER_CPU
+ def_bool n
+
+config HARDIRQS_SW_RESEND
+ def_bool n
+
+config SPARSE_IRQ
+ bool "Support sparse irq numbering"
+ depends on HAVE_SPARSE_IRQ
+ ---help---
+
+ Sparse irq numbering is useful for distro kernels that want
+ to define a high CONFIG_NR_CPUS value but still want to have
+ low kernel memory footprint on smaller machines.
+
+ ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
+ out the interrupt descriptors in a more NUMA-friendly way. )
+
+ If you don't know what to do here, say N.
+
+endmenu
+endif