4 select HAVE_MEMBLOCK_NODE_MAP
5 select HAVE_FUNCTION_TRACER
6 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
7 select HAVE_FUNCTION_GRAPH_TRACER
8 select HAVE_DYNAMIC_FTRACE
9 select HAVE_FTRACE_MCOUNT_RECORD
10 select ARCH_WANT_OPTIONAL_GPIOLIB
14 select HAVE_DMA_API_DEBUG
15 select TRACING_SUPPORT
17 select OF_EARLY_FLATTREE
18 select ARCH_WANT_IPC_PARSE_VERSION
19 select HAVE_DEBUG_KMEMLEAK
22 select GENERIC_IRQ_PROBE
23 select GENERIC_IRQ_SHOW
24 select GENERIC_PCI_IOMAP
25 select GENERIC_CPU_DEVICES
26 select GENERIC_ATOMIC64
27 select GENERIC_CLOCKEVENTS
28 select GENERIC_IDLE_POLL_SETUP
29 select MODULES_USE_ELF_RELA
30 select CLONE_BACKWARDS3
36 config RWSEM_GENERIC_SPINLOCK
42 config RWSEM_XCHGADD_ALGORITHM
45 config ARCH_HAS_ILOG2_U32
48 config ARCH_HAS_ILOG2_U64
51 config GENERIC_HWEIGHT
54 config GENERIC_CALIBRATE_DELAY
60 config STACKTRACE_SUPPORT
63 config LOCKDEP_SUPPORT
66 config HAVE_LATENCYTOP_SUPPORT
71 source "kernel/Kconfig.freezer"
73 source "arch/microblaze/platform/Kconfig.platform"
75 menu "Processor type and features"
77 source "kernel/Kconfig.preempt"
79 source "kernel/Kconfig.hz"
90 comment "Boot options"
93 bool "Default bootloader kernel arguments"
96 string "Default kernel command string"
97 depends on CMDLINE_BOOL
98 default "console=ttyUL0,115200"
100 On some architectures there is currently no way for the boot loader
101 to pass arguments to the kernel. For these architectures, you should
102 supply some command-line options at build time by entering them
106 bool "Force default kernel command string"
107 depends on CMDLINE_BOOL
110 Set this to have arguments from the default kernel command string
111 override those passed by the boot loader.
114 bool "Enable seccomp to safely compute untrusted bytecode"
118 This kernel feature is useful for number crunching applications
119 that may need to compute untrusted bytecode during their
120 execution. By using pipes or other transports made available to
121 the process as file descriptors supporting the read/write
122 syscalls, it's possible to isolate those applications in
123 their own address space using seccomp. Once seccomp is
124 enabled via /proc/<pid>/seccomp, it cannot be disabled
125 and the task is only allowed to execute a few safe syscalls
126 defined by each seccomp mode.
128 If unsure, say Y. Only embedded should say N here.
132 menu "Advanced setup"
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
254 hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
255 default "0x80000" if MMU
261 menu "Executable file formats"
263 source "fs/Kconfig.binfmt"
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"