[tip:irq/core] genirq: Provide Kconfig

tip-bot for Thomas Gleixner
2010-10-04T20:29:00Z

Commit-ID: d9817ebeeef16e01487549312c68540ca8f1561b
Gitweb: http://git.kernel.org/tip/d9817ebeeef16e01487549312c68540ca8f1561b
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Mon, 27 Sep 2010 12:45:59 +0000
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 4 Oct 2010 11:01:05 +0200

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>
---
init/Kconfig | 2 +
kernel/irq/Kconfig | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 56 insertions(+), 0 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 2de5b1c..1df1a87 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 0000000..e0fc6cd
--- /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