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>

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>
Thomas Gleixner
1 parent e7ffec1eb1
Showing 2 changed files with 56 additions and 0 deletions Side-by-side Diff
init/Kconfig
kernel/irq/Kconfig
@@ -332,6 +332,8 @@
 	depends on AUDITSYSCALL
 	select FSNOTIFY
  
+source "kernel/irq/Kconfig"
+
 menu "RCU Subsystem"
  
 choice
+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
...	...	@@ -332,6 +332,8 @@
332	332	depends on AUDITSYSCALL
333	333	select FSNOTIFY
334	334
	335	+source "kernel/irq/Kconfig"
	336	+
335	337	menu "RCU Subsystem"
336	338
337	339	choice
	1	+config HAVE_GENERIC_HARDIRQS
	2	+ def_bool n
	3	+
	4	+if HAVE_GENERIC_HARDIRQS
	5	+menu "IRQ subsystem"
	6	+#
	7	+# Interrupt subsystem related configuration options
	8	+#
	9	+config GENERIC_HARDIRQS
	10	+ def_bool y
	11	+
	12	+config GENERIC_HARDIRQS_NO__DO_IRQ
	13	+ def_bool y
	14	+
	15	+# Options selectable by the architecture code
	16	+config HAVE_SPARSE_IRQ
	17	+ def_bool n
	18	+
	19	+config GENERIC_IRQ_PROBE
	20	+ def_bool n
	21	+
	22	+config GENERIC_PENDING_IRQ
	23	+ def_bool n
	24	+
	25	+if SPARSE_IRQ && NUMA
	26	+config NUMA_IRQ_DESC
	27	+ def_bool n
	28	+endif
	29	+
	30	+config AUTO_IRQ_AFFINITY
	31	+ def_bool n
	32	+
	33	+config IRQ_PER_CPU
	34	+ def_bool n
	35	+
	36	+config HARDIRQS_SW_RESEND
	37	+ def_bool n
	38	+
	39	+config SPARSE_IRQ
	40	+ bool "Support sparse irq numbering"
	41	+ depends on HAVE_SPARSE_IRQ
	42	+ ---help---
	43	+
	44	+ Sparse irq numbering is useful for distro kernels that want
	45	+ to define a high CONFIG_NR_CPUS value but still want to have
	46	+ low kernel memory footprint on smaller machines.
	47	+
	48	+ ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
	49	+ out the interrupt descriptors in a more NUMA-friendly way. )
	50	+
	51	+ If you don't know what to do here, say N.
	52	+
	53	+endmenu
	54	+endif