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_REQUIRE_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
35 config RWSEM_GENERIC_SPINLOCK
38 config RWSEM_XCHGADD_ALGORITHM
41 config GENERIC_HWEIGHT
47 config TRACE_IRQFLAGS_SUPPORT
50 # For now, use generic checksum functions
51 #These can be reimplemented in assembly later if so inclined
58 menu "Processor type and features"
61 prompt "Subarchitecture"
67 Generic OpenRISC 1200 architecture
71 config OPENRISC_BUILTIN_DTB
75 menu "Class II Instructions"
77 config OPENRISC_HAVE_INST_FF1
78 bool "Have instruction l.ff1"
81 Select this if your implementation has the Class II instruction l.ff1
83 config OPENRISC_HAVE_INST_FL1
84 bool "Have instruction l.fl1"
87 Select this if your implementation has the Class II instruction l.fl1
89 config OPENRISC_HAVE_INST_MUL
90 bool "Have instruction l.mul for hardware multiply"
93 Select this if your implementation has a hardware multiply instruction
95 config OPENRISC_HAVE_INST_DIV
96 bool "Have instruction l.div for hardware divide"
99 Select this if your implementation has a hardware divide instruction
103 source kernel/Kconfig.hz
104 source kernel/Kconfig.preempt
107 config OPENRISC_NO_SPR_SR_DSX
108 bool "use SPR_SR_DSX software emulation" if OR1K_1200
111 SPR_SR_DSX bit is status register bit indicating whether
112 the last exception has happened in delay slot.
114 OpenRISC architecture makes it optional to have it implemented
115 in hardware and the OR1200 does not have it.
117 Say N here if you know that your OpenRISC processor has
118 SPR_SR_DSX bit implemented. Say Y if you are unsure.
121 string "Default kernel command string"
124 On some architectures there is currently no way for the boot loader
125 to pass arguments to the kernel. For these architectures, you should
126 supply some command-line options at build time by entering them
129 menu "Debugging options"
131 config DEBUG_STACKOVERFLOW
132 bool "Check for kernel stack overflow"
135 Make extra checks for space available on stack in some
136 critical functions. This will cause kernel to run a bit slower,
137 but will catch most of kernel stack overruns and exit gracefully.
139 Say Y if you are unsure.
141 config JUMP_UPON_UNHANDLED_EXCEPTION
142 bool "Try to die gracefully"
145 Now this puts kernel into infinite loop after first oops. Till
146 your kernel crashes this doesn't have any influence.
148 Say Y if you are unsure.
150 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
151 bool "Check for possible ESR exception bug"
154 This option enables some checks that might expose some problems
157 Say N if you are unsure.
163 menu "Executable file formats"
165 source "fs/Kconfig.binfmt"
171 source "drivers/Kconfig"
175 source "security/Kconfig"
177 source "crypto/Kconfig"
181 menu "Kernel hacking"
183 source "lib/Kconfig.debug"