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
50 config TRACE_IRQFLAGS_SUPPORT
53 # For now, use generic checksum functions
54 #These can be reimplemented in assembly later if so inclined
61 menu "Processor type and features"
64 prompt "Subarchitecture"
70 Generic OpenRISC 1200 architecture
74 config OPENRISC_BUILTIN_DTB
78 menu "Class II Instructions"
80 config OPENRISC_HAVE_INST_FF1
81 bool "Have instruction l.ff1"
84 Select this if your implementation has the Class II instruction l.ff1
86 config OPENRISC_HAVE_INST_FL1
87 bool "Have instruction l.fl1"
90 Select this if your implementation has the Class II instruction l.fl1
92 config OPENRISC_HAVE_INST_MUL
93 bool "Have instruction l.mul for hardware multiply"
96 Select this if your implementation has a hardware multiply instruction
98 config OPENRISC_HAVE_INST_DIV
99 bool "Have instruction l.div for hardware divide"
102 Select this if your implementation has a hardware divide instruction
106 source kernel/Kconfig.hz
107 source kernel/Kconfig.preempt
110 config OPENRISC_NO_SPR_SR_DSX
111 bool "use SPR_SR_DSX software emulation" if OR1K_1200
114 SPR_SR_DSX bit is status register bit indicating whether
115 the last exception has happened in delay slot.
117 OpenRISC architecture makes it optional to have it implemented
118 in hardware and the OR1200 does not have it.
120 Say N here if you know that your OpenRISC processor has
121 SPR_SR_DSX bit implemented. Say Y if you are unsure.
124 string "Default kernel command string"
127 On some architectures there is currently no way for the boot loader
128 to pass arguments to the kernel. For these architectures, you should
129 supply some command-line options at build time by entering them
132 menu "Debugging options"
134 config DEBUG_STACKOVERFLOW
135 bool "Check for kernel stack overflow"
138 Make extra checks for space available on stack in some
139 critical functions. This will cause kernel to run a bit slower,
140 but will catch most of kernel stack overruns and exit gracefully.
142 Say Y if you are unsure.
144 config JUMP_UPON_UNHANDLED_EXCEPTION
145 bool "Try to die gracefully"
148 Now this puts kernel into infinite loop after first oops. Till
149 your kernel crashes this doesn't have any influence.
151 Say Y if you are unsure.
153 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
154 bool "Check for possible ESR exception bug"
157 This option enables some checks that might expose some problems
160 Say N if you are unsure.
166 menu "Executable file formats"
168 source "fs/Kconfig.binfmt"
174 source "drivers/Kconfig"
178 source "security/Kconfig"
180 source "crypto/Kconfig"
184 menu "Kernel hacking"
186 source "lib/Kconfig.debug"