3 select ARCH_HAS_GCOV_PROFILE_ALL
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_WANT_IPC_PARSE_VERSION
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
20 select HAVE_DEBUG_KMEMLEAK
21 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
35 select CPU_NO_EFFICIENT_FFS
40 config RWSEM_GENERIC_SPINLOCK
46 config RWSEM_XCHGADD_ALGORITHM
49 config ARCH_HAS_ILOG2_U32
52 config ARCH_HAS_ILOG2_U64
55 config GENERIC_HWEIGHT
58 config GENERIC_CALIBRATE_DELAY
64 config STACKTRACE_SUPPORT
67 config LOCKDEP_SUPPORT
72 source "kernel/Kconfig.freezer"
74 source "arch/microblaze/Kconfig.platform"
76 menu "Processor type and features"
78 source "kernel/Kconfig.preempt"
80 source "kernel/Kconfig.hz"
86 comment "Boot options"
89 bool "Default bootloader kernel arguments"
92 string "Default kernel command string"
93 depends on CMDLINE_BOOL
94 default "console=ttyUL0,115200"
96 On some architectures there is currently no way for the boot loader
97 to pass arguments to the kernel. For these architectures, you should
98 supply some command-line options at build time by entering them
102 bool "Force default kernel command string"
103 depends on CMDLINE_BOOL
106 Set this to have arguments from the default kernel command string
107 override those passed by the boot loader.
110 bool "Enable seccomp to safely compute untrusted bytecode"
114 This kernel feature is useful for number crunching applications
115 that may need to compute untrusted bytecode during their
116 execution. By using pipes or other transports made available to
117 the process as file descriptors supporting the read/write
118 syscalls, it's possible to isolate those applications in
119 their own address space using seccomp. Once seccomp is
120 enabled via /proc/<pid>/seccomp, it cannot be disabled
121 and the task is only allowed to execute a few safe syscalls
122 defined by each seccomp mode.
124 If unsure, say Y. Only embedded should say N here.
128 menu "Kernel features"
134 config ADVANCED_OPTIONS
135 bool "Prompt for advanced kernel configuration options"
137 This option will enable prompting for a variety of advanced kernel
138 configuration options. These options can cause the kernel to not
139 work if they are set incorrectly, but can be used to optimize certain
140 aspects of kernel memory management.
142 Unless you know what you are doing, say N here.
144 comment "Default settings for advanced configuration options are used"
145 depends on !ADVANCED_OPTIONS
147 config XILINX_UNCACHED_SHADOW
148 bool "Are you using uncached shadow for RAM ?"
149 depends on ADVANCED_OPTIONS && !MMU
152 This is needed to be able to allocate uncachable memory regions.
153 The feature requires the design to define the RAM memory controller
154 window to be twice as large as the actual physical memory.
157 bool "High memory support"
160 The address space of Microblaze processors is only 4 Gigabytes large
161 and it has to accommodate user address space, kernel address
162 space as well as some memory mapped IO. That means that, if you
163 have a large amount of physical memory and/or IO, not all of the
164 memory can be "permanently mapped" by the kernel. The physical
165 memory that is not permanently mapped is called "high memory".
169 config LOWMEM_SIZE_BOOL
170 bool "Set maximum low memory"
171 depends on ADVANCED_OPTIONS && MMU
173 This option allows you to set the maximum amount of memory which
174 will be used as "low memory", that is, memory which the kernel can
175 access directly, without having to set up a kernel virtual mapping.
176 This can be useful in optimizing the layout of kernel virtual
179 Say N here unless you know what you are doing.
182 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
185 config MANUAL_RESET_VECTOR
186 hex "Microblaze reset vector address setup"
189 Set this option to have the kernel override the CPU Reset vector.
190 If zero, no change will be made to the MicroBlaze reset vector at
192 If non-zero, a jump instruction to this address, will be written
193 to the reset vector at address 0x0.
194 If you are unsure, set it to default value 0x0.
196 config KERNEL_START_BOOL
197 bool "Set custom kernel base address"
198 depends on ADVANCED_OPTIONS
200 This option allows you to set the kernel virtual address at which
201 the kernel will map low memory (the kernel image will be linked at
202 this address). This can be useful in optimizing the virtual memory
203 layout of the system.
205 Say N here unless you know what you are doing.
208 hex "Virtual address of kernel base" if KERNEL_START_BOOL
209 default "0xc0000000" if MMU
210 default KERNEL_BASE_ADDR if !MMU
212 config TASK_SIZE_BOOL
213 bool "Set custom user task size"
214 depends on ADVANCED_OPTIONS && MMU
216 This option allows you to set the amount of virtual address space
217 allocated to user tasks. This can be useful in optimizing the
218 virtual memory layout of the system.
220 Say N here unless you know what you are doing.
223 hex "Size of user task space" if TASK_SIZE_BOOL
228 default MICROBLAZE_4K_PAGES
229 depends on ADVANCED_OPTIONS && !MMU
231 Select the kernel logical page size. Increasing the page size
232 will reduce software overhead at each page boundary, allow
233 hardware prefetch mechanisms to be more effective, and allow
234 larger dma transfers increasing IO efficiency and reducing
235 overhead. However the utilization of memory will increase.
236 For example, each cached file will using a multiple of the
237 page size to hold its contents and the difference between the
238 end of file and the end of page is wasted.
240 If unsure, choose 4K_PAGES.
242 config MICROBLAZE_4K_PAGES
245 config MICROBLAZE_16K_PAGES
248 config MICROBLAZE_64K_PAGES
257 menu "Executable file formats"
259 source "fs/Kconfig.binfmt"
271 config PCI_DOMAINS_GENERIC
278 bool "Xilinx PCI host bridge support"
281 source "drivers/pci/Kconfig"
287 source "drivers/Kconfig"
291 source "arch/microblaze/Kconfig.debug"
293 source "security/Kconfig"
295 source "crypto/Kconfig"