1# SPDX-License-Identifier: GPL-2.0
2# Hexagon configuration
3comment "Linux Kernel Configuration for Hexagon"
4
5config 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 DMA_GLOBAL_POOL
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_BROADCAST
31	select MODULES_USE_ELF_RELA
32	select GENERIC_CPU_DEVICES
33	select ARCH_WANT_LD_ORPHAN_WARN
34	select TRACE_IRQFLAGS_SUPPORT
35	help
36	  Qualcomm Hexagon is a processor architecture designed for high
37	  performance and low power across a wide variety of applications.
38
39config HEXAGON_PHYS_OFFSET
40	def_bool y
41	help
42	  Platforms that don't load the kernel at zero set this.
43
44config FRAME_POINTER
45	def_bool y
46
47config LOCKDEP_SUPPORT
48	def_bool y
49
50config EARLY_PRINTK
51	def_bool y
52
53config MMU
54	def_bool y
55
56config GENERIC_CSUM
57	def_bool y
58
59#
60# Use the generic interrupt handling code in kernel/irq/:
61#
62config GENERIC_IRQ_PROBE
63	def_bool y
64
65config GENERIC_HWEIGHT
66	def_bool y
67
68config STACKTRACE_SUPPORT
69	def_bool y
70	select STACKTRACE
71
72config GENERIC_BUG
73	def_bool y
74	depends on BUG
75
76menu "Machine selection"
77
78choice
79	prompt "System type"
80	default HEXAGON_COMET
81
82config HEXAGON_COMET
83	bool "Comet Board"
84	help
85	  Support for the Comet platform.
86
87endchoice
88
89config HEXAGON_ARCH_VERSION
90	int "Architecture version"
91	default 2
92
93config 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
103config SMP
104	bool "Multi-Processing support"
105	help
106	  Enables SMP support in the kernel.  If unsure, say "Y"
107
108config 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
113	help
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
121choice
122	prompt "Kernel page size"
123	default PAGE_SIZE_4KB
124	help
125	  Changes the default page size; use with caution.
126
127config PAGE_SIZE_4KB
128	bool "4KB"
129
130config PAGE_SIZE_16KB
131	bool "16KB"
132
133config PAGE_SIZE_64KB
134	bool "64KB"
135
136config PAGE_SIZE_256KB
137	bool "256KB"
138
139endchoice
140
141source "kernel/Kconfig.hz"
142
143endmenu
144