[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / Kconfig

#
# General architecture dependent options
#

config OPROFILE
	tristate "OProfile system profiling (EXPERIMENTAL)"
	depends on PROFILING
	depends on HAVE_OPROFILE
	select RING_BUFFER
	select RING_BUFFER_ALLOW_SWAP
	help
	  OProfile is a profiling system capable of profiling the
	  whole system, include the kernel, kernel modules, libraries,
	  and applications.

	  If unsure, say N.

config OPROFILE_IBS
	bool "OProfile AMD IBS support (EXPERIMENTAL)"
	default n
	depends on OPROFILE && SMP && X86
	help
          Instruction-Based Sampling (IBS) is a new profiling
          technique that provides rich, precise program performance
          information. IBS is introduced by AMD Family10h processors
          (AMD Opteron Quad-Core processor "Barcelona") to overcome
          the limitations of conventional performance counter
          sampling.

	  If unsure, say N.

config OPROFILE_EVENT_MULTIPLEX
	bool "OProfile multiplexing support (EXPERIMENTAL)"
	default n
	depends on OPROFILE && X86
	help
	  The number of hardware counters is limited. The multiplexing
	  feature enables OProfile to gather more events than counters
	  are provided by the hardware. This is realized by switching
	  between events at an user specified time interval.

	  If unsure, say N.

config HAVE_OPROFILE
	bool

config KPROBES
	bool "Kprobes"
	depends on KALLSYMS && MODULES
	depends on HAVE_KPROBES
	help
	  Kprobes allows you to trap at almost any kernel address and
	  execute a callback function.  register_kprobe() establishes
	  a probepoint and specifies the callback.  Kprobes is useful
	  for kernel debugging, non-intrusive instrumentation and testing.
	  If in doubt, say "N".

config HAVE_EFFICIENT_UNALIGNED_ACCESS
	bool
	help
	  Some architectures are unable to perform unaligned accesses
	  without the use of get_unaligned/put_unaligned. Others are
	  unable to perform such accesses efficiently (e.g. trap on
	  unaligned access and require fixing it up in the exception
	  handler.)

	  This symbol should be selected by an architecture if it can
	  perform unaligned accesses efficiently to allow different
	  code paths to be selected for these cases. Some network
	  drivers, for example, could opt to not fix up alignment
	  problems with received packets if doing so would not help
	  much.

	  See Documentation/unaligned-memory-access.txt for more
	  information on the topic of unaligned memory accesses.

config HAVE_SYSCALL_WRAPPERS
	bool

config KRETPROBES
	def_bool y
	depends on KPROBES && HAVE_KRETPROBES

config USER_RETURN_NOTIFIER
	bool
	depends on HAVE_USER_RETURN_NOTIFIER
	help
	  Provide a kernel-internal notification when a cpu is about to
	  switch to user mode.

config HAVE_IOREMAP_PROT
	bool

config HAVE_KPROBES
	bool

config HAVE_KRETPROBES
	bool

#
# An arch should select this if it provides all these things:
#
#	task_pt_regs()		in asm/processor.h or asm/ptrace.h
#	arch_has_single_step()	if there is hardware single-step support
#	arch_has_block_step()	if there is hardware block-step support
#	asm/syscall.h		supplying asm-generic/syscall.h interface
#	linux/regset.h		user_regset interfaces
#	CORE_DUMP_USE_REGSET	#define'd in linux/elf.h
#	TIF_SYSCALL_TRACE	calls tracehook_report_syscall_{entry,exit}
#	TIF_NOTIFY_RESUME	calls tracehook_notify_resume()
#	signal delivery		calls tracehook_signal_handler()
#
config HAVE_ARCH_TRACEHOOK
	bool

config HAVE_DMA_ATTRS
	bool

config USE_GENERIC_SMP_HELPERS
	bool

config HAVE_CLK
	bool
	help
	  The <linux/clk.h> calls support software clock gating and
	  thus are a key power management tool on many systems.

config HAVE_DMA_API_DEBUG
	bool

config HAVE_DEFAULT_NO_SPIN_MUTEXES
	bool

config HAVE_HW_BREAKPOINT
	bool
	depends on PERF_EVENTS

config HAVE_USER_RETURN_NOTIFIER
	bool

source "kernel/gcov/Kconfig"
Commit	Line	Data
fb32e03f MD	1	#
	2	# General architecture dependent options
	3	#
125e5645 MD	4
	5	config OPROFILE
	6	tristate "OProfile system profiling (EXPERIMENTAL)"
	7	depends on PROFILING
	8	depends on HAVE_OPROFILE
d69d59f4	9	select RING_BUFFER
9a5963eb	10	select RING_BUFFER_ALLOW_SWAP
125e5645 MD	11	help
	12	OProfile is a profiling system capable of profiling the
	13	whole system, include the kernel, kernel modules, libraries,
	14	and applications.
	15
	16	If unsure, say N.
	17
852402cc RR	18	config OPROFILE_IBS
	19	bool "OProfile AMD IBS support (EXPERIMENTAL)"
	20	default n
	21	depends on OPROFILE && SMP && X86
	22	help
	23	Instruction-Based Sampling (IBS) is a new profiling
	24	technique that provides rich, precise program performance
	25	information. IBS is introduced by AMD Family10h processors
ba8b453d	26	(AMD Opteron Quad-Core processor "Barcelona") to overcome
852402cc RR	27	the limitations of conventional performance counter
	28	sampling.
	29
	30	If unsure, say N.
	31
4d4036e0 JY	32	config OPROFILE_EVENT_MULTIPLEX
	33	bool "OProfile multiplexing support (EXPERIMENTAL)"
	34	default n
	35	depends on OPROFILE && X86
	36	help
	37	The number of hardware counters is limited. The multiplexing
	38	feature enables OProfile to gather more events than counters
	39	are provided by the hardware. This is realized by switching
	40	between events at an user specified time interval.
	41
	42	If unsure, say N.
	43
125e5645	44	config HAVE_OPROFILE
9ba16087	45	bool
125e5645 MD	46
	47	config KPROBES
	48	bool "Kprobes"
	49	depends on KALLSYMS && MODULES
	50	depends on HAVE_KPROBES
	51	help
	52	Kprobes allows you to trap at almost any kernel address and
	53	execute a callback function. register_kprobe() establishes
	54	a probepoint and specifies the callback. Kprobes is useful
	55	for kernel debugging, non-intrusive instrumentation and testing.
	56	If in doubt, say "N".
	57
58340a07	58	config HAVE_EFFICIENT_UNALIGNED_ACCESS
9ba16087	59	bool
58340a07 JB	60	help
	61	Some architectures are unable to perform unaligned accesses
	62	without the use of get_unaligned/put_unaligned. Others are
	63	unable to perform such accesses efficiently (e.g. trap on
	64	unaligned access and require fixing it up in the exception
	65	handler.)
	66
	67	This symbol should be selected by an architecture if it can
	68	perform unaligned accesses efficiently to allow different
	69	code paths to be selected for these cases. Some network
	70	drivers, for example, could opt to not fix up alignment
	71	problems with received packets if doing so would not help
	72	much.
	73
	74	See Documentation/unaligned-memory-access.txt for more
	75	information on the topic of unaligned memory accesses.
	76
1a94bc34 HC	77	config HAVE_SYSCALL_WRAPPERS
	78	bool
	79
9edddaa2 AM	80	config KRETPROBES
	81	def_bool y
	82	depends on KPROBES && HAVE_KRETPROBES
	83
7c68af6e AK	84	config USER_RETURN_NOTIFIER
	85	bool
	86	depends on HAVE_USER_RETURN_NOTIFIER
	87	help
	88	Provide a kernel-internal notification when a cpu is about to
	89	switch to user mode.
	90
28b2ee20	91	config HAVE_IOREMAP_PROT
9ba16087	92	bool
28b2ee20	93
125e5645	94	config HAVE_KPROBES
9ba16087	95	bool
9edddaa2 AM	96
9edddaa2 AM	97	config HAVE_KRETPROBES
9ba16087	98	bool
74bc7cee	99
1f5a4ad9 RM	100	#
	101	# An arch should select this if it provides all these things:
	102	#
	103	# task_pt_regs() in asm/processor.h or asm/ptrace.h
	104	# arch_has_single_step() if there is hardware single-step support
	105	# arch_has_block_step() if there is hardware block-step support
1f5a4ad9 RM	106	# asm/syscall.h supplying asm-generic/syscall.h interface
	107	# linux/regset.h user_regset interfaces
	108	# CORE_DUMP_USE_REGSET #define'd in linux/elf.h
	109	# TIF_SYSCALL_TRACE calls tracehook_report_syscall_{entry,exit}
	110	# TIF_NOTIFY_RESUME calls tracehook_notify_resume()
	111	# signal delivery calls tracehook_signal_handler()
	112	#
	113	config HAVE_ARCH_TRACEHOOK
9ba16087	114	bool
1f5a4ad9	115
74bc7cee	116	config HAVE_DMA_ATTRS
9ba16087	117	bool
3d442233 JA	118
3d442233 JA	119	config USE_GENERIC_SMP_HELPERS
9ba16087	120	bool
9483a578 DB	121
9483a578 DB	122	config HAVE_CLK
9ba16087	123	bool
9483a578 DB	124	help
	125	The <linux/clk.h> calls support software clock gating and
	126	thus are a key power management tool on many systems.
	127
5ee00bd4 JR	128	config HAVE_DMA_API_DEBUG
5ee00bd4 JR	129	bool
36cd3c9f HC	130
	131	config HAVE_DEFAULT_NO_SPIN_MUTEXES
	132	bool
62a038d3 P	133
	134	config HAVE_HW_BREAKPOINT
	135	bool
99e8c5a3	136	depends on PERF_EVENTS
62a038d3	137
7c68af6e AK	138	config HAVE_USER_RETURN_NOTIFIER
7c68af6e AK	139	bool
a1922ed6	140
2521f2c2	141	source "kernel/gcov/Kconfig"