3 select ARCH_MIGHT_HAVE_PC_PARPORT
4 select ARCH_WANT_IPC_PARSE_VERSION
5 select ARCH_WANT_OPTIONAL_GPIOLIB
6 select BUILDTIME_EXTABLE_SORT
8 select CLONE_BACKWARDS3
10 select GENERIC_ATOMIC64
11 select GENERIC_CLOCKEVENTS
12 select GENERIC_CPU_DEVICES
13 select GENERIC_IDLE_POLL_SETUP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
16 select GENERIC_PCI_IOMAP
17 select GENERIC_SCHED_CLOCK
19 select HAVE_DEBUG_KMEMLEAK
20 select HAVE_DMA_API_DEBUG
22 select HAVE_DYNAMIC_FTRACE
23 select HAVE_FTRACE_MCOUNT_RECORD
24 select HAVE_FUNCTION_GRAPH_TRACER
25 select HAVE_FUNCTION_TRACER
27 select HAVE_MEMBLOCK_NODE_MAP
30 select MODULES_USE_ELF_RELA
32 select OF_EARLY_FLATTREE
33 select TRACING_SUPPORT
39 config RWSEM_GENERIC_SPINLOCK
45 config RWSEM_XCHGADD_ALGORITHM
48 config ARCH_HAS_ILOG2_U32
51 config ARCH_HAS_ILOG2_U64
54 config GENERIC_HWEIGHT
57 config GENERIC_CALIBRATE_DELAY
63 config STACKTRACE_SUPPORT
66 config LOCKDEP_SUPPORT
69 config HAVE_LATENCYTOP_SUPPORT
74 source "kernel/Kconfig.freezer"
76 source "arch/microblaze/Kconfig.platform"
78 menu "Processor type and features"
80 source "kernel/Kconfig.preempt"
82 source "kernel/Kconfig.hz"
88 comment "Boot options"
91 bool "Default bootloader kernel arguments"
94 string "Default kernel command string"
95 depends on CMDLINE_BOOL
96 default "console=ttyUL0,115200"
98 On some architectures there is currently no way for the boot loader
99 to pass arguments to the kernel. For these architectures, you should
100 supply some command-line options at build time by entering them
104 bool "Force default kernel command string"
105 depends on CMDLINE_BOOL
108 Set this to have arguments from the default kernel command string
109 override those passed by the boot loader.
112 bool "Enable seccomp to safely compute untrusted bytecode"
116 This kernel feature is useful for number crunching applications
117 that may need to compute untrusted bytecode during their
118 execution. By using pipes or other transports made available to
119 the process as file descriptors supporting the read/write
120 syscalls, it's possible to isolate those applications in
121 their own address space using seccomp. Once seccomp is
122 enabled via /proc/<pid>/seccomp, it cannot be disabled
123 and the task is only allowed to execute a few safe syscalls
124 defined by each seccomp mode.
126 If unsure, say Y. Only embedded should say N here.
130 menu "Kernel features"
132 config ADVANCED_OPTIONS
133 bool "Prompt for advanced kernel configuration options"
135 This option will enable prompting for a variety of advanced kernel
136 configuration options. These options can cause the kernel to not
137 work if they are set incorrectly, but can be used to optimize certain
138 aspects of kernel memory management.
140 Unless you know what you are doing, say N here.
142 comment "Default settings for advanced configuration options are used"
143 depends on !ADVANCED_OPTIONS
145 config XILINX_UNCACHED_SHADOW
146 bool "Are you using uncached shadow for RAM ?"
147 depends on ADVANCED_OPTIONS && !MMU
150 This is needed to be able to allocate uncachable memory regions.
151 The feature requires the design to define the RAM memory controller
152 window to be twice as large as the actual physical memory.
155 bool "High memory support"
158 The address space of Microblaze processors is only 4 Gigabytes large
159 and it has to accommodate user address space, kernel address
160 space as well as some memory mapped IO. That means that, if you
161 have a large amount of physical memory and/or IO, not all of the
162 memory can be "permanently mapped" by the kernel. The physical
163 memory that is not permanently mapped is called "high memory".
167 config LOWMEM_SIZE_BOOL
168 bool "Set maximum low memory"
169 depends on ADVANCED_OPTIONS && MMU
171 This option allows you to set the maximum amount of memory which
172 will be used as "low memory", that is, memory which the kernel can
173 access directly, without having to set up a kernel virtual mapping.
174 This can be useful in optimizing the layout of kernel virtual
177 Say N here unless you know what you are doing.
180 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
183 config MANUAL_RESET_VECTOR
184 hex "Microblaze reset vector address setup"
187 Set this option to have the kernel override the CPU Reset vector.
188 If zero, no change will be made to the MicroBlaze reset vector at
190 If non-zero, a jump instruction to this address, will be written
191 to the reset vector at address 0x0.
192 If you are unsure, set it to default value 0x0.
194 config KERNEL_START_BOOL
195 bool "Set custom kernel base address"
196 depends on ADVANCED_OPTIONS
198 This option allows you to set the kernel virtual address at which
199 the kernel will map low memory (the kernel image will be linked at
200 this address). This can be useful in optimizing the virtual memory
201 layout of the system.
203 Say N here unless you know what you are doing.
206 hex "Virtual address of kernel base" if KERNEL_START_BOOL
207 default "0xc0000000" if MMU
208 default KERNEL_BASE_ADDR if !MMU
210 config TASK_SIZE_BOOL
211 bool "Set custom user task size"
212 depends on ADVANCED_OPTIONS && MMU
214 This option allows you to set the amount of virtual address space
215 allocated to user tasks. This can be useful in optimizing the
216 virtual memory layout of the system.
218 Say N here unless you know what you are doing.
221 hex "Size of user task space" if TASK_SIZE_BOOL
226 default MICROBLAZE_4K_PAGES
227 depends on ADVANCED_OPTIONS && !MMU
229 Select the kernel logical page size. Increasing the page size
230 will reduce software overhead at each page boundary, allow
231 hardware prefetch mechanisms to be more effective, and allow
232 larger dma transfers increasing IO efficiency and reducing
233 overhead. However the utilization of memory will increase.
234 For example, each cached file will using a multiple of the
235 page size to hold its contents and the difference between the
236 end of file and the end of page is wasted.
238 If unsure, choose 4K_PAGES.
240 config MICROBLAZE_4K_PAGES
243 config MICROBLAZE_16K_PAGES
246 config MICROBLAZE_64K_PAGES
255 menu "Executable file formats"
257 source "fs/Kconfig.binfmt"
273 bool "Xilinx PCI host bridge support"
276 source "drivers/pci/Kconfig"
282 source "drivers/Kconfig"
286 source "arch/microblaze/Kconfig.debug"
288 source "security/Kconfig"
290 source "crypto/Kconfig"