[patch 18/19] genirq: Provide Kconfig

Thomas Gleixner
2010-09-27T12:46:47Z

[-- Attachment #1: genirq-provide-kconfig.patch --]
[-- Type: text/plain, Size: 1526 bytes --]

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>
---
kernel/irq/Kconfig | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)

Index: linux-2.6-tip/kernel/irq/Kconfig
===================================================================
--- /dev/null
+++ linux-2.6-tip/kernel/irq/Kconfig
@@ -0,0 +1,49 @@
+#
+# Interrupt subsystem related configuration options
+#
+
+menu "Interrupt handling subsystem"
+
+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---
+ This enables support for sparse irqs. This 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 irq_desc[] array in a more NUMA-friendly way. )
+
+ If you don't know what to do here, say N.
+