1 # For a description of the syntax of this configuration file,
2 # see Documentation/kbuild/kconfig-language.txt.
4 mainmenu "Linux/Microblaze Kernel Configuration"
9 select ARCH_WANT_OPTIONAL_GPIOLIB
14 config RWSEM_GENERIC_SPINLOCK
17 config RWSEM_XCHGADD_ALGORITHM
20 config ARCH_HAS_ILOG2_U32
23 config ARCH_HAS_ILOG2_U64
26 config GENERIC_FIND_NEXT_BIT
29 config GENERIC_HWEIGHT
32 config GENERIC_HARDIRQS
35 config GENERIC_IRQ_PROBE
38 config GENERIC_CALIBRATE_DELAY
44 config GENERIC_TIME_VSYSCALL
47 config GENERIC_CLOCKEVENTS
50 config GENERIC_HARDIRQS_NO__DO_IRQ
64 source "kernel/Kconfig.freezer"
66 source "arch/microblaze/platform/Kconfig.platform"
68 menu "Processor type and features"
70 source kernel/time/Kconfig
72 source "kernel/Kconfig.preempt"
74 source "kernel/Kconfig.hz"
85 comment "Boot options"
88 bool "Default bootloader kernel arguments"
91 string "Default kernel command string"
92 depends on CMDLINE_BOOL
93 default "console=ttyUL0,115200"
95 On some architectures there is currently no way for the boot loader
96 to pass arguments to the kernel. For these architectures, you should
97 supply some command-line options at build time by entering them
101 bool "Force default kernel command string"
102 depends on CMDLINE_BOOL
105 Set this to have arguments from the default kernel command string
106 override those passed by the boot loader.
111 config PROC_DEVICETREE
112 bool "Support for device tree in /proc"
115 This option adds a device-tree directory under /proc which contains
116 an image of the device tree that the kernel copies from Open
117 Firmware or other boot firmware. If unsure, say Y here.
121 menu "Advanced setup"
123 config ADVANCED_OPTIONS
124 bool "Prompt for advanced kernel configuration options"
127 This option will enable prompting for a variety of advanced kernel
128 configuration options. These options can cause the kernel to not
129 work if they are set incorrectly, but can be used to optimize certain
130 aspects of kernel memory management.
132 Unless you know what you are doing, say N here.
134 comment "Default settings for advanced configuration options are used"
135 depends on !ADVANCED_OPTIONS
137 config HIGHMEM_START_BOOL
138 bool "Set high memory pool address"
139 depends on ADVANCED_OPTIONS && HIGHMEM
141 This option allows you to set the base address of the kernel virtual
142 area used to map high memory pages. This can be useful in
143 optimizing the layout of kernel virtual memory.
145 Say N here unless you know what you are doing.
148 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
152 config LOWMEM_SIZE_BOOL
153 bool "Set maximum low memory"
154 depends on ADVANCED_OPTIONS
156 This option allows you to set the maximum amount of memory which
157 will be used as "low memory", that is, memory which the kernel can
158 access directly, without having to set up a kernel virtual mapping.
159 This can be useful in optimizing the layout of kernel virtual
162 Say N here unless you know what you are doing.
165 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
169 config KERNEL_START_BOOL
170 bool "Set custom kernel base address"
171 depends on ADVANCED_OPTIONS
173 This option allows you to set the kernel virtual address at which
174 the kernel will map low memory (the kernel image will be linked at
175 this address). This can be useful in optimizing the virtual memory
176 layout of the system.
178 Say N here unless you know what you are doing.
181 hex "Virtual address of kernel base" if KERNEL_START_BOOL
182 default "0xc0000000" if MMU
183 default KERNEL_BASE_ADDR if !MMU
185 config TASK_SIZE_BOOL
186 bool "Set custom user task size"
187 depends on ADVANCED_OPTIONS
189 This option allows you to set the amount of virtual address space
190 allocated to user tasks. This can be useful in optimizing the
191 virtual memory layout of the system.
193 Say N here unless you know what you are doing.
196 hex "Size of user task space" if TASK_SIZE_BOOL
200 config CONSISTENT_START_BOOL
201 bool "Set custom consistent memory pool address"
202 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
204 This option allows you to set the base virtual address
205 of the the consistent memory pool. This pool of virtual
206 memory is used to make consistent memory allocations.
208 config CONSISTENT_START
209 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
211 default "0xff100000" if NOT_COHERENT_CACHE
213 config CONSISTENT_SIZE_BOOL
214 bool "Set custom consistent memory pool size"
215 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
217 This option allows you to set the size of the the
218 consistent memory pool. This pool of virtual memory
219 is used to make consistent memory allocations.
221 config CONSISTENT_SIZE
222 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
224 default "0x00200000" if NOT_COHERENT_CACHE
230 menu "Exectuable file formats"
232 source "fs/Kconfig.binfmt"
238 source "drivers/Kconfig"
242 source "arch/microblaze/Kconfig.debug"
244 source "security/Kconfig"
246 source "crypto/Kconfig"