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
31 select MODULES_USE_ELF_RELA
33 select OF_EARLY_FLATTREE
34 select TRACING_SUPPORT
36 select CPU_NO_EFFICIENT_FFS
41 config RWSEM_GENERIC_SPINLOCK
47 config RWSEM_XCHGADD_ALGORITHM
50 config ARCH_HAS_ILOG2_U32
53 config ARCH_HAS_ILOG2_U64
56 config GENERIC_HWEIGHT
59 config GENERIC_CALIBRATE_DELAY
65 config STACKTRACE_SUPPORT
68 config LOCKDEP_SUPPORT
73 source "kernel/Kconfig.freezer"
75 source "arch/microblaze/Kconfig.platform"
77 menu "Processor type and features"
79 source "kernel/Kconfig.preempt"
81 source "kernel/Kconfig.hz"
87 comment "Boot options"
90 bool "Default bootloader kernel arguments"
93 string "Default kernel command string"
94 depends on CMDLINE_BOOL
95 default "console=ttyUL0,115200"
97 On some architectures there is currently no way for the boot loader
98 to pass arguments to the kernel. For these architectures, you should
99 supply some command-line options at build time by entering them
103 bool "Force default kernel command string"
104 depends on CMDLINE_BOOL
107 Set this to have arguments from the default kernel command string
108 override those passed by the boot loader.
111 bool "Enable seccomp to safely compute untrusted bytecode"
115 This kernel feature is useful for number crunching applications
116 that may need to compute untrusted bytecode during their
117 execution. By using pipes or other transports made available to
118 the process as file descriptors supporting the read/write
119 syscalls, it's possible to isolate those applications in
120 their own address space using seccomp. Once seccomp is
121 enabled via /proc/<pid>/seccomp, it cannot be disabled
122 and the task is only allowed to execute a few safe syscalls
123 defined by each seccomp mode.
125 If unsure, say Y. Only embedded should say N here.
129 menu "Kernel features"
135 config ADVANCED_OPTIONS
136 bool "Prompt for advanced kernel configuration options"
138 This option will enable prompting for a variety of advanced kernel
139 configuration options. These options can cause the kernel to not
140 work if they are set incorrectly, but can be used to optimize certain
141 aspects of kernel memory management.
143 Unless you know what you are doing, say N here.
145 comment "Default settings for advanced configuration options are used"
146 depends on !ADVANCED_OPTIONS
148 config XILINX_UNCACHED_SHADOW
149 bool "Are you using uncached shadow for RAM ?"
150 depends on ADVANCED_OPTIONS && !MMU
153 This is needed to be able to allocate uncachable memory regions.
154 The feature requires the design to define the RAM memory controller
155 window to be twice as large as the actual physical memory.
158 bool "High memory support"
161 The address space of Microblaze processors is only 4 Gigabytes large
162 and it has to accommodate user address space, kernel address
163 space as well as some memory mapped IO. That means that, if you
164 have a large amount of physical memory and/or IO, not all of the
165 memory can be "permanently mapped" by the kernel. The physical
166 memory that is not permanently mapped is called "high memory".
170 config LOWMEM_SIZE_BOOL
171 bool "Set maximum low memory"
172 depends on ADVANCED_OPTIONS && MMU
174 This option allows you to set the maximum amount of memory which
175 will be used as "low memory", that is, memory which the kernel can
176 access directly, without having to set up a kernel virtual mapping.
177 This can be useful in optimizing the layout of kernel virtual
180 Say N here unless you know what you are doing.
183 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
186 config MANUAL_RESET_VECTOR
187 hex "Microblaze reset vector address setup"
190 Set this option to have the kernel override the CPU Reset vector.
191 If zero, no change will be made to the MicroBlaze reset vector at
193 If non-zero, a jump instruction to this address, will be written
194 to the reset vector at address 0x0.
195 If you are unsure, set it to default value 0x0.
197 config KERNEL_START_BOOL
198 bool "Set custom kernel base address"
199 depends on ADVANCED_OPTIONS
201 This option allows you to set the kernel virtual address at which
202 the kernel will map low memory (the kernel image will be linked at
203 this address). This can be useful in optimizing the virtual memory
204 layout of the system.
206 Say N here unless you know what you are doing.
209 hex "Virtual address of kernel base" if KERNEL_START_BOOL
210 default "0xc0000000" if MMU
211 default KERNEL_BASE_ADDR if !MMU
213 config TASK_SIZE_BOOL
214 bool "Set custom user task size"
215 depends on ADVANCED_OPTIONS && MMU
217 This option allows you to set the amount of virtual address space
218 allocated to user tasks. This can be useful in optimizing the
219 virtual memory layout of the system.
221 Say N here unless you know what you are doing.
224 hex "Size of user task space" if TASK_SIZE_BOOL
229 default MICROBLAZE_4K_PAGES
230 depends on ADVANCED_OPTIONS && !MMU
232 Select the kernel logical page size. Increasing the page size
233 will reduce software overhead at each page boundary, allow
234 hardware prefetch mechanisms to be more effective, and allow
235 larger dma transfers increasing IO efficiency and reducing
236 overhead. However the utilization of memory will increase.
237 For example, each cached file will using a multiple of the
238 page size to hold its contents and the difference between the
239 end of file and the end of page is wasted.
241 If unsure, choose 4K_PAGES.
243 config MICROBLAZE_4K_PAGES
246 config MICROBLAZE_16K_PAGES
249 config MICROBLAZE_64K_PAGES
258 menu "Executable file formats"
260 source "fs/Kconfig.binfmt"
272 config PCI_DOMAINS_GENERIC
279 bool "Xilinx PCI host bridge support"
282 source "drivers/pci/Kconfig"
288 source "drivers/Kconfig"
292 source "arch/microblaze/Kconfig.debug"
294 source "security/Kconfig"
296 source "crypto/Kconfig"