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
21 select HAVE_GENERIC_HARDIRQS
23 select GENERIC_IRQ_PROBE
24 select GENERIC_IRQ_SHOW
25 select GENERIC_PCI_IOMAP
26 select GENERIC_CPU_DEVICES
27 select GENERIC_ATOMIC64
28 select GENERIC_CLOCKEVENTS
29 select MODULES_USE_ELF_RELA
30 select CLONE_BACKWARDS
35 config RWSEM_GENERIC_SPINLOCK
41 config ARCH_POPULATES_NODE_MAP
44 config RWSEM_XCHGADD_ALGORITHM
47 config ARCH_HAS_ILOG2_U32
50 config ARCH_HAS_ILOG2_U64
53 config GENERIC_HWEIGHT
56 config GENERIC_CALIBRATE_DELAY
65 config STACKTRACE_SUPPORT
68 config LOCKDEP_SUPPORT
71 config HAVE_LATENCYTOP_SUPPORT
76 source "kernel/Kconfig.freezer"
78 source "arch/microblaze/platform/Kconfig.platform"
80 menu "Processor type and features"
82 source "kernel/Kconfig.preempt"
84 source "kernel/Kconfig.hz"
95 comment "Boot options"
98 bool "Default bootloader kernel arguments"
101 string "Default kernel command string"
102 depends on CMDLINE_BOOL
103 default "console=ttyUL0,115200"
105 On some architectures there is currently no way for the boot loader
106 to pass arguments to the kernel. For these architectures, you should
107 supply some command-line options at build time by entering them
111 bool "Force default kernel command string"
112 depends on CMDLINE_BOOL
115 Set this to have arguments from the default kernel command string
116 override those passed by the boot loader.
119 bool "Enable seccomp to safely compute untrusted bytecode"
123 This kernel feature is useful for number crunching applications
124 that may need to compute untrusted bytecode during their
125 execution. By using pipes or other transports made available to
126 the process as file descriptors supporting the read/write
127 syscalls, it's possible to isolate those applications in
128 their own address space using seccomp. Once seccomp is
129 enabled via /proc/<pid>/seccomp, it cannot be disabled
130 and the task is only allowed to execute a few safe syscalls
131 defined by each seccomp mode.
133 If unsure, say Y. Only embedded should say N here.
137 menu "Advanced setup"
139 config ADVANCED_OPTIONS
140 bool "Prompt for advanced kernel configuration options"
142 This option will enable prompting for a variety of advanced kernel
143 configuration options. These options can cause the kernel to not
144 work if they are set incorrectly, but can be used to optimize certain
145 aspects of kernel memory management.
147 Unless you know what you are doing, say N here.
149 comment "Default settings for advanced configuration options are used"
150 depends on !ADVANCED_OPTIONS
152 config XILINX_UNCACHED_SHADOW
153 bool "Are you using uncached shadow for RAM ?"
154 depends on ADVANCED_OPTIONS && !MMU
157 This is needed to be able to allocate uncachable memory regions.
158 The feature requires the design to define the RAM memory controller
159 window to be twice as large as the actual physical memory.
162 bool "High memory support"
165 The address space of Microblaze processors is only 4 Gigabytes large
166 and it has to accommodate user address space, kernel address
167 space as well as some memory mapped IO. That means that, if you
168 have a large amount of physical memory and/or IO, not all of the
169 memory can be "permanently mapped" by the kernel. The physical
170 memory that is not permanently mapped is called "high memory".
174 config LOWMEM_SIZE_BOOL
175 bool "Set maximum low memory"
176 depends on ADVANCED_OPTIONS && MMU
178 This option allows you to set the maximum amount of memory which
179 will be used as "low memory", that is, memory which the kernel can
180 access directly, without having to set up a kernel virtual mapping.
181 This can be useful in optimizing the layout of kernel virtual
184 Say N here unless you know what you are doing.
187 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
190 config MANUAL_RESET_VECTOR
191 hex "Microblaze reset vector address setup"
194 Set this option to have the kernel override the CPU Reset vector.
195 If zero, no change will be made to the MicroBlaze reset vector at
197 If non-zero, a jump instruction to this address, will be written
198 to the reset vector at address 0x0.
199 If you are unsure, set it to default value 0x0.
201 config KERNEL_START_BOOL
202 bool "Set custom kernel base address"
203 depends on ADVANCED_OPTIONS
205 This option allows you to set the kernel virtual address at which
206 the kernel will map low memory (the kernel image will be linked at
207 this address). This can be useful in optimizing the virtual memory
208 layout of the system.
210 Say N here unless you know what you are doing.
213 hex "Virtual address of kernel base" if KERNEL_START_BOOL
214 default "0xc0000000" if MMU
215 default KERNEL_BASE_ADDR if !MMU
217 config TASK_SIZE_BOOL
218 bool "Set custom user task size"
219 depends on ADVANCED_OPTIONS && MMU
221 This option allows you to set the amount of virtual address space
222 allocated to user tasks. This can be useful in optimizing the
223 virtual memory layout of the system.
225 Say N here unless you know what you are doing.
228 hex "Size of user task space" if TASK_SIZE_BOOL
233 default MICROBLAZE_4K_PAGES
234 depends on ADVANCED_OPTIONS && !MMU
236 Select the kernel logical page size. Increasing the page size
237 will reduce software overhead at each page boundary, allow
238 hardware prefetch mechanisms to be more effective, and allow
239 larger dma transfers increasing IO efficiency and reducing
240 overhead. However the utilization of memory will increase.
241 For example, each cached file will using a multiple of the
242 page size to hold its contents and the difference between the
243 end of file and the end of page is wasted.
245 If unsure, choose 4K_PAGES.
247 config MICROBLAZE_4K_PAGES
250 config MICROBLAZE_16K_PAGES
253 config MICROBLAZE_64K_PAGES
259 hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
260 default "0x80000" if MMU
266 menu "Executable file formats"
268 source "fs/Kconfig.binfmt"
284 bool "Xilinx PCI host bridge support"
287 source "drivers/pci/Kconfig"
293 source "drivers/Kconfig"
297 source "arch/microblaze/Kconfig.debug"
299 source "security/Kconfig"
301 source "crypto/Kconfig"