arm64: switch to generic compat rt_sigqueueinfo()
[linux-2.6-block.git] / arch / arm64 / Kconfig
CommitLineData
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1config ARM64
2 def_bool y
3 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
6212a512 4 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
25c92a37 5 select ARM_AMBA
db2789b5 6 select CLONE_BACKWARDS
7ca2ef33 7 select COMMON_CLK
8c2c3df3 8 select GENERIC_CLOCKEVENTS
67cf48fe 9 select GENERIC_COMPAT_RT_SIGPENDING
630cfbbb 10 select GENERIC_COMPAT_RT_SIGPROCMASK
4cd2b2fa 11 select GENERIC_COMPAT_RT_SIGQUEUEINFO
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12 select GENERIC_HARDIRQS_NO_DEPRECATED
13 select GENERIC_IOMAP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
207bdae4 16 select GENERIC_SIGALTSTACK
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17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_TIME_VSYSCALL
19 select HARDIRQS_SW_RESEND
20 select HAVE_ARCH_TRACEHOOK
9b2a60c4 21 select HAVE_DEBUG_BUGVERBOSE
b69ec42b 22 select HAVE_DEBUG_KMEMLEAK
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23 select HAVE_DMA_API_DEBUG
24 select HAVE_DMA_ATTRS
25 select HAVE_GENERIC_DMA_COHERENT
26 select HAVE_GENERIC_HARDIRQS
27 select HAVE_HW_BREAKPOINT if PERF_EVENTS
28 select HAVE_IRQ_WORK
29 select HAVE_MEMBLOCK
30 select HAVE_PERF_EVENTS
8c2c3df3 31 select IRQ_DOMAIN
fea2acaa 32 select MODULES_USE_ELF_RELA
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33 select NO_BOOTMEM
34 select OF
35 select OF_EARLY_FLATTREE
36 select PERF_USE_VMALLOC
37 select RTC_LIB
38 select SPARSE_IRQ
7ac57a89 39 select SYSCTL_EXCEPTION_TRACE
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40 help
41 ARM 64-bit (AArch64) Linux support.
42
43config 64BIT
44 def_bool y
45
46config ARCH_PHYS_ADDR_T_64BIT
47 def_bool y
48
49config MMU
50 def_bool y
51
52config NO_IOPORT
53 def_bool y
54
55config STACKTRACE_SUPPORT
56 def_bool y
57
58config LOCKDEP_SUPPORT
59 def_bool y
60
61config TRACE_IRQFLAGS_SUPPORT
62 def_bool y
63
64config GENERIC_LOCKBREAK
65 def_bool y
66 depends on SMP && PREEMPT
67
68config RWSEM_GENERIC_SPINLOCK
69 def_bool y
70
71config GENERIC_HWEIGHT
72 def_bool y
73
74config GENERIC_CSUM
75 def_bool y
76
77config GENERIC_CALIBRATE_DELAY
78 def_bool y
79
80config ZONE_DMA32
81 def_bool y
82
83config ARCH_DMA_ADDR_T_64BIT
84 def_bool y
85
86config NEED_DMA_MAP_STATE
87 def_bool y
88
89config NEED_SG_DMA_LENGTH
90 def_bool y
91
92config SWIOTLB
93 def_bool y
94
95config IOMMU_HELPER
96 def_bool SWIOTLB
97
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98config GENERIC_GPIO
99 def_bool y
100
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101source "init/Kconfig"
102
103source "kernel/Kconfig.freezer"
104
105menu "System Type"
106
107endmenu
108
109menu "Bus support"
110
111config ARM_AMBA
112 bool
113
114endmenu
115
116menu "Kernel Features"
117
118source "kernel/time/Kconfig"
119
120config ARM64_64K_PAGES
121 bool "Enable 64KB pages support"
122 help
123 This feature enables 64KB pages support (4KB by default)
124 allowing only two levels of page tables and faster TLB
125 look-up. AArch32 emulation is not available when this feature
126 is enabled.
127
128config SMP
129 bool "Symmetric Multi-Processing"
130 select USE_GENERIC_SMP_HELPERS
131 help
132 This enables support for systems with more than one CPU. If
133 you say N here, the kernel will run on single and
134 multiprocessor machines, but will use only one CPU of a
135 multiprocessor machine. If you say Y here, the kernel will run
136 on many, but not all, single processor machines. On a single
137 processor machine, the kernel will run faster if you say N
138 here.
139
140 If you don't know what to do here, say N.
141
142config NR_CPUS
143 int "Maximum number of CPUs (2-32)"
144 range 2 32
145 depends on SMP
146 default "4"
147
148source kernel/Kconfig.preempt
149
150config HZ
151 int
152 default 100
153
154config ARCH_HAS_HOLES_MEMORYMODEL
155 def_bool y if SPARSEMEM
156
157config ARCH_SPARSEMEM_ENABLE
158 def_bool y
159 select SPARSEMEM_VMEMMAP_ENABLE
160
161config ARCH_SPARSEMEM_DEFAULT
162 def_bool ARCH_SPARSEMEM_ENABLE
163
164config ARCH_SELECT_MEMORY_MODEL
165 def_bool ARCH_SPARSEMEM_ENABLE
166
167config HAVE_ARCH_PFN_VALID
168 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
169
170config HW_PERF_EVENTS
171 bool "Enable hardware performance counter support for perf events"
172 depends on PERF_EVENTS
173 default y
174 help
175 Enable hardware performance counter support for perf events. If
176 disabled, perf events will use software events only.
177
178source "mm/Kconfig"
179
180endmenu
181
182menu "Boot options"
183
184config CMDLINE
185 string "Default kernel command string"
186 default ""
187 help
188 Provide a set of default command-line options at build time by
189 entering them here. As a minimum, you should specify the the
190 root device (e.g. root=/dev/nfs).
191
192config CMDLINE_FORCE
193 bool "Always use the default kernel command string"
194 help
195 Always use the default kernel command string, even if the boot
196 loader passes other arguments to the kernel.
197 This is useful if you cannot or don't want to change the
198 command-line options your boot loader passes to the kernel.
199
200endmenu
201
202menu "Userspace binary formats"
203
204source "fs/Kconfig.binfmt"
205
206config COMPAT
207 bool "Kernel support for 32-bit EL0"
208 depends on !ARM64_64K_PAGES
209 select COMPAT_BINFMT_ELF
af1839eb 210 select HAVE_UID16
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211 help
212 This option enables support for a 32-bit EL0 running under a 64-bit
213 kernel at EL1. AArch32-specific components such as system calls,
214 the user helper functions, VFP support and the ptrace interface are
215 handled appropriately by the kernel.
216
217 If you want to execute 32-bit userspace applications, say Y.
218
219config SYSVIPC_COMPAT
220 def_bool y
221 depends on COMPAT && SYSVIPC
222
223endmenu
224
225source "net/Kconfig"
226
227source "drivers/Kconfig"
228
229source "fs/Kconfig"
230
231source "arch/arm64/Kconfig.debug"
232
233source "security/Kconfig"
234
235source "crypto/Kconfig"
236
237source "lib/Kconfig"