[linux-2.6-block.git] / arch / hexagon / Kconfig

# SPDX-License-Identifier: GPL-2.0
# Hexagon configuration
comment "Linux Kernel Configuration for Hexagon"

config HEXAGON
	def_bool y
	select ARCH_32BIT_OFF_T
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
	select ARCH_NO_PREEMPT
	select HAVE_OPROFILE
	# Other pending projects/to-do items.
	# select HAVE_REGS_AND_STACK_ACCESS_API
	# select HAVE_HW_BREAKPOINT if PERF_EVENTS
	# select ARCH_HAS_CPU_IDLE_WAIT
	# select GPIOLIB
	# select HAVE_CLK
	# select GENERIC_PENDING_IRQ if SMP
	select GENERIC_ATOMIC64
	select HAVE_PERF_EVENTS
	# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
	select GENERIC_ALLOCATOR
	select GENERIC_IRQ_SHOW
	select HAVE_ARCH_KGDB
	select HAVE_ARCH_TRACEHOOK
	select NEED_SG_DMA_LENGTH
	select NO_IOPORT_MAP
	select GENERIC_IOMAP
	select GENERIC_SMP_IDLE_THREAD
	select STACKTRACE_SUPPORT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CLOCKEVENTS_BROADCAST
	select MODULES_USE_ELF_RELA
	select GENERIC_CPU_DEVICES
	---help---
	  Qualcomm Hexagon is a processor architecture designed for high
	  performance and low power across a wide variety of applications.

config HEXAGON_PHYS_OFFSET
	def_bool y
	---help---
	  Platforms that don't load the kernel at zero set this.

config FRAME_POINTER
	def_bool y

config LOCKDEP_SUPPORT
	def_bool y

config EARLY_PRINTK
	def_bool y

config MMU
	def_bool y

config TRACE_IRQFLAGS_SUPPORT
	def_bool y

config GENERIC_CSUM
	def_bool y

#
# Use the generic interrupt handling code in kernel/irq/:
#
config GENERIC_IRQ_PROBE
	def_bool y

config GENERIC_HWEIGHT
	def_bool y

config STACKTRACE_SUPPORT
	def_bool y
	select STACKTRACE

config GENERIC_BUG
	def_bool y
	depends on BUG

menu "Machine selection"

choice
	prompt "System type"
	default HEXAGON_COMET

config HEXAGON_COMET
	bool "Comet Board"
	---help---
	  Support for the Comet platform.

endchoice

config HEXAGON_ARCH_VERSION
	int "Architecture version"
	default 2

config CMDLINE
	string "Default kernel command string"
	default ""
	help
	  On some platforms, there is currently no way for the boot loader
	  to pass arguments to the kernel. For these, you should supply some
	  command-line options at build time by entering them here.  At a
	  minimum, you should specify the memory size and the root device
	  (e.g., mem=64M root=/dev/nfs).

config SMP
	bool "Multi-Processing support"
	---help---
	  Enables SMP support in the kernel.  If unsure, say "Y"

config NR_CPUS
	int "Maximum number of CPUs" if SMP
	range 2 6 if SMP
	default "1" if !SMP
	default "6" if SMP
	---help---
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 6 and the
	  minimum value which makes sense is 2.

	  This is purely to save memory - each supported CPU adds
	  approximately eight kilobytes to the kernel image.

choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB
	---help---
	  Changes the default page size; use with caution.

config PAGE_SIZE_4KB
	bool "4KB"

config PAGE_SIZE_16KB
	bool "16KB"

config PAGE_SIZE_64KB
	bool "64KB"

config PAGE_SIZE_256KB
	bool "256KB"

endchoice

source "kernel/Kconfig.hz"

endmenu
Commit	Line	Data
	1	# SPDX-License-Identifier: GPL-2.0
	2	# Hexagon configuration
	3	comment "Linux Kernel Configuration for Hexagon"
	4
	5	config HEXAGON
	6	def_bool y
	7	select ARCH_32BIT_OFF_T
	8	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
	9	select ARCH_NO_PREEMPT
	10	select HAVE_OPROFILE
	11	# Other pending projects/to-do items.
	12	# select HAVE_REGS_AND_STACK_ACCESS_API
	13	# select HAVE_HW_BREAKPOINT if PERF_EVENTS
	14	# select ARCH_HAS_CPU_IDLE_WAIT
	15	# select GPIOLIB
	16	# select HAVE_CLK
	17	# select GENERIC_PENDING_IRQ if SMP
	18	select GENERIC_ATOMIC64
	19	select HAVE_PERF_EVENTS
	20	# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
	21	select GENERIC_ALLOCATOR
	22	select GENERIC_IRQ_SHOW
	23	select HAVE_ARCH_KGDB
	24	select HAVE_ARCH_TRACEHOOK
	25	select NEED_SG_DMA_LENGTH
	26	select NO_IOPORT_MAP
	27	select GENERIC_IOMAP
	28	select GENERIC_SMP_IDLE_THREAD
	29	select STACKTRACE_SUPPORT
	30	select GENERIC_CLOCKEVENTS
	31	select GENERIC_CLOCKEVENTS_BROADCAST
	32	select MODULES_USE_ELF_RELA
	33	select GENERIC_CPU_DEVICES
	34	---help---
	35	Qualcomm Hexagon is a processor architecture designed for high
	36	performance and low power across a wide variety of applications.
	37
	38	config HEXAGON_PHYS_OFFSET
	39	def_bool y
	40	---help---
	41	Platforms that don't load the kernel at zero set this.
	42
	43	config FRAME_POINTER
	44	def_bool y
	45
	46	config LOCKDEP_SUPPORT
	47	def_bool y
	48
	49	config EARLY_PRINTK
	50	def_bool y
	51
	52	config MMU
	53	def_bool y
	54
	55	config TRACE_IRQFLAGS_SUPPORT
	56	def_bool y
	57
	58	config GENERIC_CSUM
	59	def_bool y
	60
	61	#
	62	# Use the generic interrupt handling code in kernel/irq/:
	63	#
	64	config GENERIC_IRQ_PROBE
	65	def_bool y
	66
	67	config GENERIC_HWEIGHT
	68	def_bool y
	69
	70	config STACKTRACE_SUPPORT
	71	def_bool y
	72	select STACKTRACE
	73
	74	config GENERIC_BUG
	75	def_bool y
	76	depends on BUG
	77
	78	menu "Machine selection"
	79
	80	choice
	81	prompt "System type"
	82	default HEXAGON_COMET
	83
	84	config HEXAGON_COMET
	85	bool "Comet Board"
	86	---help---
	87	Support for the Comet platform.
	88
	89	endchoice
	90
	91	config HEXAGON_ARCH_VERSION
	92	int "Architecture version"
	93	default 2
	94
	95	config CMDLINE
	96	string "Default kernel command string"
	97	default ""
	98	help
	99	On some platforms, there is currently no way for the boot loader
	100	to pass arguments to the kernel. For these, you should supply some
	101	command-line options at build time by entering them here. At a
	102	minimum, you should specify the memory size and the root device
	103	(e.g., mem=64M root=/dev/nfs).
	104
	105	config SMP
	106	bool "Multi-Processing support"
	107	---help---
	108	Enables SMP support in the kernel. If unsure, say "Y"
	109
	110	config NR_CPUS
	111	int "Maximum number of CPUs" if SMP
	112	range 2 6 if SMP
	113	default "1" if !SMP
	114	default "6" if SMP
	115	---help---
	116	This allows you to specify the maximum number of CPUs which this
	117	kernel will support. The maximum supported value is 6 and the
	118	minimum value which makes sense is 2.
	119
	120	This is purely to save memory - each supported CPU adds
	121	approximately eight kilobytes to the kernel image.
	122
	123	choice
	124	prompt "Kernel page size"
	125	default PAGE_SIZE_4KB
	126	---help---
	127	Changes the default page size; use with caution.
	128
	129	config PAGE_SIZE_4KB
	130	bool "4KB"
	131
	132	config PAGE_SIZE_16KB
	133	bool "16KB"
	134
	135	config PAGE_SIZE_64KB
	136	bool "64KB"
	137
	138	config PAGE_SIZE_256KB
	139	bool "256KB"
	140
	141	endchoice
	142
	143	source "kernel/Kconfig.hz"
	144
	145	endmenu