3 select ARCH_HAS_GCOV_PROFILE_ALL
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_WANT_IPC_PARSE_VERSION
6 select ARCH_WANT_OPTIONAL_GPIOLIB
7 select BUILDTIME_EXTABLE_SORT
9 select CLONE_BACKWARDS3
11 select GENERIC_ATOMIC64
12 select GENERIC_CLOCKEVENTS
13 select GENERIC_CPU_DEVICES
14 select GENERIC_IDLE_POLL_SETUP
15 select GENERIC_IRQ_PROBE
16 select GENERIC_IRQ_SHOW
17 select GENERIC_PCI_IOMAP
18 select GENERIC_SCHED_CLOCK
20 select HAVE_DEBUG_KMEMLEAK
21 select HAVE_DMA_API_DEBUG
23 select HAVE_DYNAMIC_FTRACE
24 select HAVE_FTRACE_MCOUNT_RECORD
25 select HAVE_FUNCTION_GRAPH_TRACER
26 select HAVE_FUNCTION_TRACER
28 select HAVE_MEMBLOCK_NODE_MAP
31 select MODULES_USE_ELF_RELA
33 select OF_EARLY_FLATTREE
34 select TRACING_SUPPORT
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
70 config HAVE_LATENCYTOP_SUPPORT
75 source "kernel/Kconfig.freezer"
77 source "arch/microblaze/Kconfig.platform"
79 menu "Processor type and features"
81 source "kernel/Kconfig.preempt"
83 source "kernel/Kconfig.hz"
89 comment "Boot options"
92 bool "Default bootloader kernel arguments"
95 string "Default kernel command string"
96 depends on CMDLINE_BOOL
97 default "console=ttyUL0,115200"
99 On some architectures there is currently no way for the boot loader
100 to pass arguments to the kernel. For these architectures, you should
101 supply some command-line options at build time by entering them
105 bool "Force default kernel command string"
106 depends on CMDLINE_BOOL
109 Set this to have arguments from the default kernel command string
110 override those passed by the boot loader.
113 bool "Enable seccomp to safely compute untrusted bytecode"
117 This kernel feature is useful for number crunching applications
118 that may need to compute untrusted bytecode during their
119 execution. By using pipes or other transports made available to
120 the process as file descriptors supporting the read/write
121 syscalls, it's possible to isolate those applications in
122 their own address space using seccomp. Once seccomp is
123 enabled via /proc/<pid>/seccomp, it cannot be disabled
124 and the task is only allowed to execute a few safe syscalls
125 defined by each seccomp mode.
127 If unsure, say Y. Only embedded should say N here.
131 menu "Kernel features"
137 config ADVANCED_OPTIONS
138 bool "Prompt for advanced kernel configuration options"
140 This option will enable prompting for a variety of advanced kernel
141 configuration options. These options can cause the kernel to not
142 work if they are set incorrectly, but can be used to optimize certain
143 aspects of kernel memory management.
145 Unless you know what you are doing, say N here.
147 comment "Default settings for advanced configuration options are used"
148 depends on !ADVANCED_OPTIONS
150 config XILINX_UNCACHED_SHADOW
151 bool "Are you using uncached shadow for RAM ?"
152 depends on ADVANCED_OPTIONS && !MMU
155 This is needed to be able to allocate uncachable memory regions.
156 The feature requires the design to define the RAM memory controller
157 window to be twice as large as the actual physical memory.
160 bool "High memory support"
163 The address space of Microblaze processors is only 4 Gigabytes large
164 and it has to accommodate user address space, kernel address
165 space as well as some memory mapped IO. That means that, if you
166 have a large amount of physical memory and/or IO, not all of the
167 memory can be "permanently mapped" by the kernel. The physical
168 memory that is not permanently mapped is called "high memory".
172 config LOWMEM_SIZE_BOOL
173 bool "Set maximum low memory"
174 depends on ADVANCED_OPTIONS && MMU
176 This option allows you to set the maximum amount of memory which
177 will be used as "low memory", that is, memory which the kernel can
178 access directly, without having to set up a kernel virtual mapping.
179 This can be useful in optimizing the layout of kernel virtual
182 Say N here unless you know what you are doing.
185 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
188 config MANUAL_RESET_VECTOR
189 hex "Microblaze reset vector address setup"
192 Set this option to have the kernel override the CPU Reset vector.
193 If zero, no change will be made to the MicroBlaze reset vector at
195 If non-zero, a jump instruction to this address, will be written
196 to the reset vector at address 0x0.
197 If you are unsure, set it to default value 0x0.
199 config KERNEL_START_BOOL
200 bool "Set custom kernel base address"
201 depends on ADVANCED_OPTIONS
203 This option allows you to set the kernel virtual address at which
204 the kernel will map low memory (the kernel image will be linked at
205 this address). This can be useful in optimizing the virtual memory
206 layout of the system.
208 Say N here unless you know what you are doing.
211 hex "Virtual address of kernel base" if KERNEL_START_BOOL
212 default "0xc0000000" if MMU
213 default KERNEL_BASE_ADDR if !MMU
215 config TASK_SIZE_BOOL
216 bool "Set custom user task size"
217 depends on ADVANCED_OPTIONS && MMU
219 This option allows you to set the amount of virtual address space
220 allocated to user tasks. This can be useful in optimizing the
221 virtual memory layout of the system.
223 Say N here unless you know what you are doing.
226 hex "Size of user task space" if TASK_SIZE_BOOL
231 default MICROBLAZE_4K_PAGES
232 depends on ADVANCED_OPTIONS && !MMU
234 Select the kernel logical page size. Increasing the page size
235 will reduce software overhead at each page boundary, allow
236 hardware prefetch mechanisms to be more effective, and allow
237 larger dma transfers increasing IO efficiency and reducing
238 overhead. However the utilization of memory will increase.
239 For example, each cached file will using a multiple of the
240 page size to hold its contents and the difference between the
241 end of file and the end of page is wasted.
243 If unsure, choose 4K_PAGES.
245 config MICROBLAZE_4K_PAGES
248 config MICROBLAZE_16K_PAGES
251 config MICROBLAZE_64K_PAGES
260 menu "Executable file formats"
262 source "fs/Kconfig.binfmt"
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"