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
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 MODULES_USE_ELF_RELA
29 select CLONE_BACKWARDS
34 config RWSEM_GENERIC_SPINLOCK
40 config ARCH_POPULATES_NODE_MAP
43 config RWSEM_XCHGADD_ALGORITHM
46 config ARCH_HAS_ILOG2_U32
49 config ARCH_HAS_ILOG2_U64
52 config GENERIC_HWEIGHT
55 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/platform/Kconfig.platform"
79 menu "Processor type and features"
81 source "kernel/Kconfig.preempt"
83 source "kernel/Kconfig.hz"
94 comment "Boot options"
97 bool "Default bootloader kernel arguments"
100 string "Default kernel command string"
101 depends on CMDLINE_BOOL
102 default "console=ttyUL0,115200"
104 On some architectures there is currently no way for the boot loader
105 to pass arguments to the kernel. For these architectures, you should
106 supply some command-line options at build time by entering them
110 bool "Force default kernel command string"
111 depends on CMDLINE_BOOL
114 Set this to have arguments from the default kernel command string
115 override those passed by the boot loader.
118 bool "Enable seccomp to safely compute untrusted bytecode"
122 This kernel feature is useful for number crunching applications
123 that may need to compute untrusted bytecode during their
124 execution. By using pipes or other transports made available to
125 the process as file descriptors supporting the read/write
126 syscalls, it's possible to isolate those applications in
127 their own address space using seccomp. Once seccomp is
128 enabled via /proc/<pid>/seccomp, it cannot be disabled
129 and the task is only allowed to execute a few safe syscalls
130 defined by each seccomp mode.
132 If unsure, say Y. Only embedded should say N here.
136 menu "Advanced setup"
138 config ADVANCED_OPTIONS
139 bool "Prompt for advanced kernel configuration options"
141 This option will enable prompting for a variety of advanced kernel
142 configuration options. These options can cause the kernel to not
143 work if they are set incorrectly, but can be used to optimize certain
144 aspects of kernel memory management.
146 Unless you know what you are doing, say N here.
148 comment "Default settings for advanced configuration options are used"
149 depends on !ADVANCED_OPTIONS
151 config XILINX_UNCACHED_SHADOW
152 bool "Are you using uncached shadow for RAM ?"
153 depends on ADVANCED_OPTIONS && !MMU
156 This is needed to be able to allocate uncachable memory regions.
157 The feature requires the design to define the RAM memory controller
158 window to be twice as large as the actual physical memory.
161 bool "High memory support"
164 The address space of Microblaze processors is only 4 Gigabytes large
165 and it has to accommodate user address space, kernel address
166 space as well as some memory mapped IO. That means that, if you
167 have a large amount of physical memory and/or IO, not all of the
168 memory can be "permanently mapped" by the kernel. The physical
169 memory that is not permanently mapped is called "high memory".
173 config LOWMEM_SIZE_BOOL
174 bool "Set maximum low memory"
175 depends on ADVANCED_OPTIONS && MMU
177 This option allows you to set the maximum amount of memory which
178 will be used as "low memory", that is, memory which the kernel can
179 access directly, without having to set up a kernel virtual mapping.
180 This can be useful in optimizing the layout of kernel virtual
183 Say N here unless you know what you are doing.
186 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
189 config MANUAL_RESET_VECTOR
190 hex "Microblaze reset vector address setup"
193 Set this option to have the kernel override the CPU Reset vector.
194 If zero, no change will be made to the MicroBlaze reset vector at
196 If non-zero, a jump instruction to this address, will be written
197 to the reset vector at address 0x0.
198 If you are unsure, set it to default value 0x0.
200 config KERNEL_START_BOOL
201 bool "Set custom kernel base address"
202 depends on ADVANCED_OPTIONS
204 This option allows you to set the kernel virtual address at which
205 the kernel will map low memory (the kernel image will be linked at
206 this address). This can be useful in optimizing the virtual memory
207 layout of the system.
209 Say N here unless you know what you are doing.
212 hex "Virtual address of kernel base" if KERNEL_START_BOOL
213 default "0xc0000000" if MMU
214 default KERNEL_BASE_ADDR if !MMU
216 config TASK_SIZE_BOOL
217 bool "Set custom user task size"
218 depends on ADVANCED_OPTIONS && MMU
220 This option allows you to set the amount of virtual address space
221 allocated to user tasks. This can be useful in optimizing the
222 virtual memory layout of the system.
224 Say N here unless you know what you are doing.
227 hex "Size of user task space" if TASK_SIZE_BOOL
232 default MICROBLAZE_4K_PAGES
233 depends on ADVANCED_OPTIONS && !MMU
235 Select the kernel logical page size. Increasing the page size
236 will reduce software overhead at each page boundary, allow
237 hardware prefetch mechanisms to be more effective, and allow
238 larger dma transfers increasing IO efficiency and reducing
239 overhead. However the utilization of memory will increase.
240 For example, each cached file will using a multiple of the
241 page size to hold its contents and the difference between the
242 end of file and the end of page is wasted.
244 If unsure, choose 4K_PAGES.
246 config MICROBLAZE_4K_PAGES
249 config MICROBLAZE_16K_PAGES
252 config MICROBLAZE_64K_PAGES
258 hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
259 default "0x80000" if MMU
265 menu "Executable file formats"
267 source "fs/Kconfig.binfmt"
283 bool "Xilinx PCI host bridge support"
286 source "drivers/pci/Kconfig"
292 source "drivers/Kconfig"
296 source "arch/microblaze/Kconfig.debug"
298 source "security/Kconfig"
300 source "crypto/Kconfig"