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_KERNEL_THREAD
26 select GENERIC_KERNEL_EXECVE
41 config RWSEM_GENERIC_SPINLOCK
44 config RWSEM_XCHGADD_ALGORITHM
47 config GENERIC_HWEIGHT
56 config TRACE_IRQFLAGS_SUPPORT
59 # For now, use generic checksum functions
60 #These can be reimplemented in assembly later if so inclined
64 config GENERIC_FIND_NEXT_BIT
70 menu "Processor type and features"
73 prompt "Subarchitecture"
79 Generic OpenRISC 1200 architecture
83 config OPENRISC_BUILTIN_DTB
87 menu "Class II Instructions"
89 config OPENRISC_HAVE_INST_FF1
90 bool "Have instruction l.ff1"
93 Select this if your implementation has the Class II instruction l.ff1
95 config OPENRISC_HAVE_INST_FL1
96 bool "Have instruction l.fl1"
99 Select this if your implementation has the Class II instruction l.fl1
101 config OPENRISC_HAVE_INST_MUL
102 bool "Have instruction l.mul for hardware multiply"
105 Select this if your implementation has a hardware multiply instruction
107 config OPENRISC_HAVE_INST_DIV
108 bool "Have instruction l.div for hardware divide"
111 Select this if your implementation has a hardware divide instruction
115 source kernel/Kconfig.hz
116 source kernel/Kconfig.preempt
119 config OPENRISC_NO_SPR_SR_DSX
120 bool "use SPR_SR_DSX software emulation" if OR1K_1200
123 SPR_SR_DSX bit is status register bit indicating whether
124 the last exception has happened in delay slot.
126 OpenRISC architecture makes it optional to have it implemented
127 in hardware and the OR1200 does not have it.
129 Say N here if you know that your OpenRISC processor has
130 SPR_SR_DSX bit implemented. Say Y if you are unsure.
133 string "Default kernel command string"
136 On some architectures there is currently no way for the boot loader
137 to pass arguments to the kernel. For these architectures, you should
138 supply some command-line options at build time by entering them
141 menu "Debugging options"
143 config DEBUG_STACKOVERFLOW
144 bool "Check for kernel stack overflow"
147 Make extra checks for space available on stack in some
148 critical functions. This will cause kernel to run a bit slower,
149 but will catch most of kernel stack overruns and exit gracefully.
151 Say Y if you are unsure.
153 config JUMP_UPON_UNHANDLED_EXCEPTION
154 bool "Try to die gracefully"
157 Now this puts kernel into infinite loop after first oops. Till
158 your kernel crashes this doesn't have any influence.
160 Say Y if you are unsure.
162 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
163 bool "Check for possible ESR exception bug"
166 This option enables some checks that might expose some problems
169 Say N if you are unsure.
175 menu "Executable file formats"
177 source "fs/Kconfig.binfmt"
183 source "drivers/Kconfig"
187 source "security/Kconfig"
189 source "crypto/Kconfig"
193 menu "Kernel hacking"
195 source "lib/Kconfig.debug"