Blame - kernel/irq/Kconfig - SHIFTPHONES/mainline/linux

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Thomas Gleixner	ec8f24b	2019-05-19 13:07:45 +0100	[diff] [blame]	1	# SPDX-License-Identifier: GPL-2.0-only
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	2	menu "IRQ subsystem"
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	3	# Options selectable by the architecture code
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	4
				5	# Make sparse irq Kconfig switch below available
Rob Herring	2ed86b1	2012-01-25 20:02:40 -0600	[diff] [blame]	6	config MAY_HAVE_SPARSE_IRQ
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	7	bool
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	8
Thomas Gleixner	c940e01	2014-05-07 15:44:22 +0000	[diff] [blame]	9	# Legacy support, required for itanic
				10	config GENERIC_IRQ_LEGACY
				11	bool
				12
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	13	# Enable the generic irq autoprobe mechanism
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	14	config GENERIC_IRQ_PROBE
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	15	bool
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	16
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	17	# Use the generic /proc/interrupts implementation
Thomas Gleixner	c78b9b6	2010-12-16 17:21:47 +0100	[diff] [blame]	18	config GENERIC_IRQ_SHOW
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	19	bool
Thomas Gleixner	c78b9b6	2010-12-16 17:21:47 +0100	[diff] [blame]	20
Thomas Gleixner	ab7798f	2011-03-25 16:48:50 +0100	[diff] [blame]	21	# Print level/edge extra information
				22	config GENERIC_IRQ_SHOW_LEVEL
				23	bool
				24
Thomas Gleixner	0d3f542	2017-06-20 01:37:38 +0200	[diff] [blame]	25	# Supports effective affinity mask
				26	config GENERIC_IRQ_EFFECTIVE_AFF_MASK
				27	bool
				28
Thomas Gleixner	7b6ef12	2014-05-07 15:44:05 +0000	[diff] [blame]	29	# Facility to allocate a hardware interrupt. This is legacy support
				30	# and should not be used in new code. Use irq domains instead.
				31	config GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
				32	bool
				33
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	34	# Support for delayed migration from interrupt context
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	35	config GENERIC_PENDING_IRQ
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	36	bool
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	37
Yang Yingliang	f1e0bb0	2015-09-24 17:32:13 +0800	[diff] [blame]	38	# Support for generic irq migrating off cpu before the cpu is offline.
				39	config GENERIC_IRQ_MIGRATION
				40	bool
				41
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	42	# Alpha specific irq affinity mechanism
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	43	config AUTO_IRQ_AFFINITY
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	44	bool
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	45
Thomas Gleixner	acd26bc	2020-03-06 14:03:47 +0100	[diff] [blame]	46	# Interrupt injection mechanism
				47	config GENERIC_IRQ_INJECTION
				48	bool
				49
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	50	# Tasklet based software resend for pending interrupts on enable_irq()
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	51	config HARDIRQS_SW_RESEND
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	52	bool
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	53
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	54	# Preflow handler support for fasteoi (sparc64)
Thomas Gleixner	7812957	2011-02-10 15:14:20 +0100	[diff] [blame]	55	config IRQ_PREFLOW_FASTEOI
Jan Beulich	fd4afaf	2011-02-17 13:39:05 +0000	[diff] [blame]	56	bool
Thomas Gleixner	7812957	2011-02-10 15:14:20 +0100	[diff] [blame]	57
Thomas Gleixner	0521c8f	2011-03-28 16:13:24 +0200	[diff] [blame]	58	# Edge style eoi based handler (cell)
				59	config IRQ_EDGE_EOI_HANDLER
				60	bool
				61
Thomas Gleixner	c42321c	2011-05-02 18:16:22 +0200	[diff] [blame]	62	# Generic configurable interrupt chip implementation
				63	config GENERIC_IRQ_CHIP
				64	bool
Nitin A Kamble	923fa4e	2014-01-30 16:50:10 -0800	[diff] [blame]	65	select IRQ_DOMAIN
Thomas Gleixner	c42321c	2011-05-02 18:16:22 +0200	[diff] [blame]	66
Grant Likely	08a543a	2011-07-26 03:19:06 -0600	[diff] [blame]	67	# Generic irq_domain hw <--> linux irq number translation
				68	config IRQ_DOMAIN
				69	bool
				70
Bartosz Golaszewski	b19af51	2017-08-14 16:53:16 +0200	[diff] [blame]	71	# Support for simulated interrupts
				72	config IRQ_SIM
				73	bool
				74	select IRQ_WORK
				75
Jiang Liu	f8264e3	2014-11-06 22:20:14 +0800	[diff] [blame]	76	# Support for hierarchical irq domains
				77	config IRQ_DOMAIN_HIERARCHY
				78	bool
				79	select IRQ_DOMAIN
				80
David Daney	7703b08	2017-08-17 17:53:31 -0700	[diff] [blame]	81	# Support for hierarchical fasteoi+edge and fasteoi+level handlers
				82	config IRQ_FASTEOI_HIERARCHY_HANDLERS
				83	bool
				84
Qais Yousef	379b656	2015-12-08 13:20:14 +0000	[diff] [blame]	85	# Generic IRQ IPI support
				86	config GENERIC_IRQ_IPI
				87	bool
				88
Jiang Liu	f3cf8bb	2014-11-12 11:39:03 +0100	[diff] [blame]	89	# Generic MSI interrupt support
				90	config GENERIC_MSI_IRQ
				91	bool
				92
				93	# Generic MSI hierarchical interrupt domain support
				94	config GENERIC_MSI_IRQ_DOMAIN
				95	bool
				96	select IRQ_DOMAIN_HIERARCHY
				97	select GENERIC_MSI_IRQ
				98
Julien Grall	aaebdf8	2019-05-01 14:58:18 +0100	[diff] [blame]	99	config IRQ_MSI_IOMMU
				100	bool
				101
Marc Zyngier	76ba59f	2014-08-26 11:03:16 +0100	[diff] [blame]	102	config HANDLE_DOMAIN_IRQ
				103	bool
				104
Daniel Lezcano	b2d3d61	2017-06-23 16:11:07 +0200	[diff] [blame]	105	config IRQ_TIMINGS
				106	bool
				107
Thomas Gleixner	2f75d9e	2017-09-13 23:29:14 +0200	[diff] [blame]	108	config GENERIC_IRQ_MATRIX_ALLOCATOR
				109	bool
				110
Thomas Gleixner	2b5175c	2017-10-17 09:54:57 +0200	[diff] [blame]	111	config GENERIC_IRQ_RESERVATION_MODE
				112	bool
				113
Thomas Gleixner	c68fd4f	2011-03-08 19:52:55 +0100	[diff] [blame]	114	# Support forced irq threading
Thomas Gleixner	8d32a30	2011-02-23 23:52:23 +0000	[diff] [blame]	115	config IRQ_FORCED_THREADING
				116	bool
				117
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	118	config SPARSE_IRQ
Rob Herring	2ed86b1	2012-01-25 20:02:40 -0600	[diff] [blame]	119	bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	120	---help---
				121
				122	Sparse irq numbering is useful for distro kernels that want
				123	to define a high CONFIG_NR_CPUS value but still want to have
				124	low kernel memory footprint on smaller machines.
				125
				126	( Sparse irqs can also be beneficial on NUMA boxes, as they spread
				127	out the interrupt descriptors in a more NUMA-friendly way. )
				128
				129	If you don't know what to do here, say N.
				130
Thomas Gleixner	087cdfb	2017-06-20 01:37:17 +0200	[diff] [blame]	131	config GENERIC_IRQ_DEBUGFS
				132	bool "Expose irq internals in debugfs"
				133	depends on DEBUG_FS
Thomas Gleixner	acd26bc	2020-03-06 14:03:47 +0100	[diff] [blame]	134	select GENERIC_IRQ_INJECTION
Thomas Gleixner	087cdfb	2017-06-20 01:37:17 +0200	[diff] [blame]	135	default n
				136	---help---
				137
				138	Exposes internal state information through debugfs. Mostly for
				139	developers and debugging of hard to diagnose interrupt problems.
				140
				141	If you don't know what to do here, say N.
				142
Thomas Gleixner	d9817eb	2010-09-27 12:45:59 +0000	[diff] [blame]	143	endmenu
Palmer Dabbelt	caacdbf	2018-03-07 15:57:27 -0800	[diff] [blame]	144
				145	config GENERIC_IRQ_MULTI_HANDLER
				146	bool
				147	help
				148	Allow to specify the low level IRQ handler at run time.