2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
9 select OF_EARLY_FLATTREE
12 select ARCH_WANT_OPTIONAL_GPIOLIB
13 select HAVE_ARCH_TRACEHOOK
14 select HAVE_GENERIC_HARDIRQS
15 select GENERIC_IRQ_CHIP
16 select GENERIC_IRQ_PROBE
17 select GENERIC_IRQ_SHOW
19 select GENERIC_CPU_DEVICES
20 select GENERIC_ATOMIC64
21 select GENERIC_CLOCKEVENTS
22 select GENERIC_STRNCPY_FROM_USER
23 select GENERIC_STRNLEN_USER
24 select MODULES_USE_ELF_RELA
25 select GENERIC_SIGALTSTACK
40 config RWSEM_GENERIC_SPINLOCK
43 config RWSEM_XCHGADD_ALGORITHM
46 config GENERIC_HWEIGHT
55 config TRACE_IRQFLAGS_SUPPORT
58 # For now, use generic checksum functions
59 #These can be reimplemented in assembly later if so inclined
63 config GENERIC_FIND_NEXT_BIT
69 menu "Processor type and features"
72 prompt "Subarchitecture"
78 Generic OpenRISC 1200 architecture
82 config OPENRISC_BUILTIN_DTB
86 menu "Class II Instructions"
88 config OPENRISC_HAVE_INST_FF1
89 bool "Have instruction l.ff1"
92 Select this if your implementation has the Class II instruction l.ff1
94 config OPENRISC_HAVE_INST_FL1
95 bool "Have instruction l.fl1"
98 Select this if your implementation has the Class II instruction l.fl1
100 config OPENRISC_HAVE_INST_MUL
101 bool "Have instruction l.mul for hardware multiply"
104 Select this if your implementation has a hardware multiply instruction
106 config OPENRISC_HAVE_INST_DIV
107 bool "Have instruction l.div for hardware divide"
110 Select this if your implementation has a hardware divide instruction
114 source kernel/Kconfig.hz
115 source kernel/Kconfig.preempt
118 config OPENRISC_NO_SPR_SR_DSX
119 bool "use SPR_SR_DSX software emulation" if OR1K_1200
122 SPR_SR_DSX bit is status register bit indicating whether
123 the last exception has happened in delay slot.
125 OpenRISC architecture makes it optional to have it implemented
126 in hardware and the OR1200 does not have it.
128 Say N here if you know that your OpenRISC processor has
129 SPR_SR_DSX bit implemented. Say Y if you are unsure.
132 string "Default kernel command string"
135 On some architectures there is currently no way for the boot loader
136 to pass arguments to the kernel. For these architectures, you should
137 supply some command-line options at build time by entering them
140 menu "Debugging options"
142 config DEBUG_STACKOVERFLOW
143 bool "Check for kernel stack overflow"
146 Make extra checks for space available on stack in some
147 critical functions. This will cause kernel to run a bit slower,
148 but will catch most of kernel stack overruns and exit gracefully.
150 Say Y if you are unsure.
152 config JUMP_UPON_UNHANDLED_EXCEPTION
153 bool "Try to die gracefully"
156 Now this puts kernel into infinite loop after first oops. Till
157 your kernel crashes this doesn't have any influence.
159 Say Y if you are unsure.
161 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
162 bool "Check for possible ESR exception bug"
165 This option enables some checks that might expose some problems
168 Say N if you are unsure.
174 menu "Executable file formats"
176 source "fs/Kconfig.binfmt"
182 source "drivers/Kconfig"
186 source "security/Kconfig"
188 source "crypto/Kconfig"
192 menu "Kernel hacking"
194 source "lib/Kconfig.debug"