Root/arch/hexagon/Kconfig

1# Hexagon configuration
2comment "Linux Kernel Configuration for Hexagon"
3
4config HEXAGON
5    def_bool y
6    select HAVE_OPROFILE
7    select USE_GENERIC_SMP_HELPERS if SMP
8    # Other pending projects/to-do items.
9    # select HAVE_REGS_AND_STACK_ACCESS_API
10    # select HAVE_HW_BREAKPOINT if PERF_EVENTS
11    # select ARCH_HAS_CPU_IDLE_WAIT
12    # select ARCH_WANT_OPTIONAL_GPIOLIB
13    # select ARCH_REQUIRE_GPIOLIB
14    # select HAVE_CLK
15    # select IRQ_PER_CPU
16    # select GENERIC_PENDING_IRQ if SMP
17    select HAVE_IRQ_WORK
18    select GENERIC_ATOMIC64
19    select HAVE_PERF_EVENTS
20    select HAVE_GENERIC_HARDIRQS
21    # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
22    select GENERIC_ALLOCATOR
23    select GENERIC_IRQ_SHOW
24    select HAVE_ARCH_KGDB
25    select HAVE_ARCH_TRACEHOOK
26    select NO_IOPORT
27    select GENERIC_IOMAP
28    select GENERIC_SMP_IDLE_THREAD
29    select STACKTRACE_SUPPORT
30    select KTIME_SCALAR
31    select GENERIC_CLOCKEVENTS
32    select GENERIC_CLOCKEVENTS_BROADCAST
33    ---help---
34      Qualcomm Hexagon is a processor architecture designed for high
35      performance and low power across a wide variety of applications.
36
37config HEXAGON_ARCH_V1
38    bool
39
40config HEXAGON_ARCH_V2
41    bool
42
43config HEXAGON_ARCH_V3
44    bool
45
46config HEXAGON_ARCH_V4
47    bool
48
49config FRAME_POINTER
50    def_bool y
51
52config LOCKDEP_SUPPORT
53    def_bool y
54
55config PCI
56    def_bool n
57
58config EARLY_PRINTK
59    def_bool y
60
61config MMU
62    def_bool y
63
64config TRACE_IRQFLAGS_SUPPORT
65    def_bool y
66
67config GENERIC_CSUM
68    def_bool y
69
70#
71# Use the generic interrupt handling code in kernel/irq/:
72#
73config GENERIC_IRQ_PROBE
74    def_bool y
75
76config NEED_SG_DMA_LENGTH
77    def_bool y
78
79config RWSEM_GENERIC_SPINLOCK
80    def_bool n
81
82config RWSEM_XCHGADD_ALGORITHM
83    def_bool y
84
85config GENERIC_FIND_NEXT_BIT
86    def_bool y
87
88config GENERIC_HWEIGHT
89    def_bool y
90
91config STACKTRACE_SUPPORT
92    def_bool y
93    select STACKTRACE
94
95config GENERIC_BUG
96    def_bool y
97    depends on BUG
98
99menu "Machine selection"
100
101choice
102    prompt "System type"
103    default HEXAGON_COMET
104
105config HEXAGON_COMET
106    bool "Comet Board"
107    select HEXAGON_ARCH_V2
108    ---help---
109      Support for the Comet platform.
110
111endchoice
112
113config HEXAGON_VM
114    def_bool y
115
116config CMDLINE
117    string "Default kernel command string"
118    default ""
119    help
120      On some platforms, there is currently no way for the boot loader
121      to pass arguments to the kernel. For these, you should supply some
122      command-line options at build time by entering them here. At a
123      minimum, you should specify the memory size and the root device
124      (e.g., mem=64M root=/dev/nfs).
125
126config HEXAGON_ANGEL_TRAPS
127    bool "Use Angel Traps"
128    default n
129    ---help---
130      Enable angel debug traps (for printk's).
131
132config SMP
133    bool "Multi-Processing support"
134    ---help---
135      Enables SMP support in the kernel. If unsure, say "Y"
136
137config NR_CPUS
138    int "Maximum number of CPUs" if SMP
139    range 2 6 if SMP
140    default "1" if !SMP
141    default "6" if SMP
142    ---help---
143      This allows you to specify the maximum number of CPUs which this
144      kernel will support. The maximum supported value is 6 and the
145      minimum value which makes sense is 2.
146
147      This is purely to save memory - each supported CPU adds
148      approximately eight kilobytes to the kernel image.
149
150choice
151    prompt "Kernel page size"
152    default PAGE_SIZE_4KB
153    ---help---
154      Changes the default page size; use with caution.
155
156config PAGE_SIZE_4KB
157    bool "4KB"
158
159config PAGE_SIZE_16KB
160    bool "16KB"
161
162config PAGE_SIZE_64KB
163    bool "64KB"
164
165config PAGE_SIZE_256KB
166    bool "256KB"
167
168endchoice
169
170source "mm/Kconfig"
171
172source "kernel/Kconfig.hz"
173
174config GENERIC_GPIO
175    def_bool n
176
177endmenu
178
179source "init/Kconfig"
180source "drivers/Kconfig"
181source "fs/Kconfig"
182
183menu "Executable File Formats"
184source "fs/Kconfig.binfmt"
185endmenu
186
187source "net/Kconfig"
188source "security/Kconfig"
189source "crypto/Kconfig"
190source "lib/Kconfig"
191
192menu "Kernel hacking"
193source "lib/Kconfig.debug"
194endmenu
195

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