[linux-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 DMA_GLOBAL_POOL
	# 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_BROADCAST
	select MODULES_USE_ELF_RELA
	select GENERIC_CPU_DEVICES
	select ARCH_WANT_LD_ORPHAN_WARN
	select TRACE_IRQFLAGS_SUPPORT
	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 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
b2441318	1	# SPDX-License-Identifier: GPL-2.0
e95bf452 RK	2	# Hexagon configuration
	3	comment "Linux Kernel Configuration for Hexagon"
	4
	5	config HEXAGON
	6	def_bool y
942fa985	7	select ARCH_32BIT_OFF_T
e0a9317d	8	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
87a4c375	9	select ARCH_NO_PREEMPT
c1dec343	10	select DMA_GLOBAL_POOL
e95bf452 RK	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
d4f80b81	15	# select GPIOLIB
e95bf452	16	# select HAVE_CLK
e95bf452 RK	17	# select GENERIC_PENDING_IRQ if SMP
	18	select GENERIC_ATOMIC64
	19	select HAVE_PERF_EVENTS
e95bf452 RK	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
86596f0a	25	select NEED_SG_DMA_LENGTH
ce816fa8	26	select NO_IOPORT_MAP
4673ca8e	27	select GENERIC_IOMAP
3b0132ce	28	select GENERIC_SMP_IDLE_THREAD
5042ab91	29	select STACKTRACE_SUPPORT
24a6f35e	30	select GENERIC_CLOCKEVENTS_BROADCAST
786d35d4	31	select MODULES_USE_ELF_RELA
53debcd5	32	select GENERIC_CPU_DEVICES
113616ec	33	select ARCH_WANT_LD_ORPHAN_WARN
4aae683f	34	select TRACE_IRQFLAGS_SUPPORT
a7f7f624	35	help
e95bf452 RK	36	Qualcomm Hexagon is a processor architecture designed for high
	37	performance and low power across a wide variety of applications.
	38
8f5a0b9d RK	39	config HEXAGON_PHYS_OFFSET
8f5a0b9d RK	40	def_bool y
a7f7f624	41	help
8f5a0b9d RK	42	Platforms that don't load the kernel at zero set this.
8f5a0b9d RK	43
e95bf452 RK	44	config FRAME_POINTER
	45	def_bool y
	46
	47	config LOCKDEP_SUPPORT
	48	def_bool y
	49
e95bf452 RK	50	config EARLY_PRINTK
	51	def_bool y
	52
e95bf452 RK	53	config MMU
	54	def_bool y
	55
e95bf452 RK	56	config GENERIC_CSUM
	57	def_bool y
	58
	59	#
	60	# Use the generic interrupt handling code in kernel/irq/:
	61	#
	62	config GENERIC_IRQ_PROBE
	63	def_bool y
e95bf452	64
e95bf452 RK	65	config GENERIC_HWEIGHT
	66	def_bool y
	67
e95bf452 RK	68	config STACKTRACE_SUPPORT
	69	def_bool y
	70	select STACKTRACE
	71
	72	config GENERIC_BUG
	73	def_bool y
	74	depends on BUG
	75
e95bf452 RK	76	menu "Machine selection"
	77
	78	choice
	79	prompt "System type"
5042ab91	80	default HEXAGON_COMET
e95bf452 RK	81
	82	config HEXAGON_COMET
	83	bool "Comet Board"
a7f7f624	84	help
e95bf452 RK	85	Support for the Comet platform.
	86
	87	endchoice
	88
66b03dbf RK	89	config HEXAGON_ARCH_VERSION
	90	int "Architecture version"
	91	default 2
	92
e95bf452 RK	93	config CMDLINE
	94	string "Default kernel command string"
	95	default ""
	96	help
	97	On some platforms, there is currently no way for the boot loader
	98	to pass arguments to the kernel. For these, you should supply some
	99	command-line options at build time by entering them here. At a
	100	minimum, you should specify the memory size and the root device
	101	(e.g., mem=64M root=/dev/nfs).
	102
e95bf452 RK	103	config SMP
e95bf452 RK	104	bool "Multi-Processing support"
a7f7f624	105	help
e95bf452 RK	106	Enables SMP support in the kernel. If unsure, say "Y"
	107
	108	config NR_CPUS
	109	int "Maximum number of CPUs" if SMP
	110	range 2 6 if SMP
	111	default "1" if !SMP
	112	default "6" if SMP
a7f7f624	113	help
e95bf452 RK	114	This allows you to specify the maximum number of CPUs which this
	115	kernel will support. The maximum supported value is 6 and the
	116	minimum value which makes sense is 2.
	117
	118	This is purely to save memory - each supported CPU adds
	119	approximately eight kilobytes to the kernel image.
	120
	121	choice
	122	prompt "Kernel page size"
	123	default PAGE_SIZE_4KB
a7f7f624	124	help
e95bf452 RK	125	Changes the default page size; use with caution.
	126
	127	config PAGE_SIZE_4KB
	128	bool "4KB"
	129
	130	config PAGE_SIZE_16KB
	131	bool "16KB"
	132
	133	config PAGE_SIZE_64KB
	134	bool "64KB"
	135
	136	config PAGE_SIZE_256KB
	137	bool "256KB"
	138
	139	endchoice
	140
e95bf452	141	source "kernel/Kconfig.hz"
e95bf452	142
e95bf452	143	endmenu