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
20 select HAVE_GENERIC_HARDIRQS
21 select GENERIC_IRQ_PROBE
22 select GENERIC_IRQ_SHOW
23 select GENERIC_PCI_IOMAP
24 select GENERIC_CPU_DEVICES
25 select GENERIC_ATOMIC64
26 select GENERIC_CLOCKEVENTS
31 config RWSEM_GENERIC_SPINLOCK
37 config ARCH_POPULATES_NODE_MAP
40 config RWSEM_XCHGADD_ALGORITHM
43 config ARCH_HAS_ILOG2_U32
46 config ARCH_HAS_ILOG2_U64
49 config GENERIC_HWEIGHT
52 config GENERIC_CALIBRATE_DELAY
61 config STACKTRACE_SUPPORT
64 config LOCKDEP_SUPPORT
67 config HAVE_LATENCYTOP_SUPPORT
72 source "kernel/Kconfig.freezer"
74 source "arch/microblaze/platform/Kconfig.platform"
76 menu "Processor type and features"
78 source "kernel/Kconfig.preempt"
80 source "kernel/Kconfig.hz"
91 comment "Boot options"
94 bool "Default bootloader kernel arguments"
97 string "Default kernel command string"
98 depends on CMDLINE_BOOL
99 default "console=ttyUL0,115200"
101 On some architectures there is currently no way for the boot loader
102 to pass arguments to the kernel. For these architectures, you should
103 supply some command-line options at build time by entering them
107 bool "Force default kernel command string"
108 depends on CMDLINE_BOOL
111 Set this to have arguments from the default kernel command string
112 override those passed by the boot loader.
115 bool "Enable seccomp to safely compute untrusted bytecode"
119 This kernel feature is useful for number crunching applications
120 that may need to compute untrusted bytecode during their
121 execution. By using pipes or other transports made available to
122 the process as file descriptors supporting the read/write
123 syscalls, it's possible to isolate those applications in
124 their own address space using seccomp. Once seccomp is
125 enabled via /proc/<pid>/seccomp, it cannot be disabled
126 and the task is only allowed to execute a few safe syscalls
127 defined by each seccomp mode.
129 If unsure, say Y. Only embedded should say N here.
133 menu "Advanced setup"
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_8K_PAGES
249 config MICROBLAZE_16K_PAGES
252 config MICROBLAZE_32K_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"