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
32 config RWSEM_GENERIC_SPINLOCK
38 config ARCH_POPULATES_NODE_MAP
41 config RWSEM_XCHGADD_ALGORITHM
44 config ARCH_HAS_ILOG2_U32
47 config ARCH_HAS_ILOG2_U64
50 config GENERIC_HWEIGHT
53 config GENERIC_CALIBRATE_DELAY
62 config STACKTRACE_SUPPORT
65 config LOCKDEP_SUPPORT
68 config HAVE_LATENCYTOP_SUPPORT
73 source "kernel/Kconfig.freezer"
75 source "arch/microblaze/platform/Kconfig.platform"
77 menu "Processor type and features"
79 source "kernel/Kconfig.preempt"
81 source "kernel/Kconfig.hz"
92 comment "Boot options"
95 bool "Default bootloader kernel arguments"
98 string "Default kernel command string"
99 depends on CMDLINE_BOOL
100 default "console=ttyUL0,115200"
102 On some architectures there is currently no way for the boot loader
103 to pass arguments to the kernel. For these architectures, you should
104 supply some command-line options at build time by entering them
108 bool "Force default kernel command string"
109 depends on CMDLINE_BOOL
112 Set this to have arguments from the default kernel command string
113 override those passed by the boot loader.
116 bool "Enable seccomp to safely compute untrusted bytecode"
120 This kernel feature is useful for number crunching applications
121 that may need to compute untrusted bytecode during their
122 execution. By using pipes or other transports made available to
123 the process as file descriptors supporting the read/write
124 syscalls, it's possible to isolate those applications in
125 their own address space using seccomp. Once seccomp is
126 enabled via /proc/<pid>/seccomp, it cannot be disabled
127 and the task is only allowed to execute a few safe syscalls
128 defined by each seccomp mode.
130 If unsure, say Y. Only embedded should say N here.
134 menu "Advanced setup"
136 config ADVANCED_OPTIONS
137 bool "Prompt for advanced kernel configuration options"
139 This option will enable prompting for a variety of advanced kernel
140 configuration options. These options can cause the kernel to not
141 work if they are set incorrectly, but can be used to optimize certain
142 aspects of kernel memory management.
144 Unless you know what you are doing, say N here.
146 comment "Default settings for advanced configuration options are used"
147 depends on !ADVANCED_OPTIONS
149 config XILINX_UNCACHED_SHADOW
150 bool "Are you using uncached shadow for RAM ?"
151 depends on ADVANCED_OPTIONS && !MMU
154 This is needed to be able to allocate uncachable memory regions.
155 The feature requires the design to define the RAM memory controller
156 window to be twice as large as the actual physical memory.
159 bool "High memory support"
162 The address space of Microblaze processors is only 4 Gigabytes large
163 and it has to accommodate user address space, kernel address
164 space as well as some memory mapped IO. That means that, if you
165 have a large amount of physical memory and/or IO, not all of the
166 memory can be "permanently mapped" by the kernel. The physical
167 memory that is not permanently mapped is called "high memory".
171 config LOWMEM_SIZE_BOOL
172 bool "Set maximum low memory"
173 depends on ADVANCED_OPTIONS && MMU
175 This option allows you to set the maximum amount of memory which
176 will be used as "low memory", that is, memory which the kernel can
177 access directly, without having to set up a kernel virtual mapping.
178 This can be useful in optimizing the layout of kernel virtual
181 Say N here unless you know what you are doing.
184 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
187 config MANUAL_RESET_VECTOR
188 hex "Microblaze reset vector address setup"
191 Set this option to have the kernel override the CPU Reset vector.
192 If zero, no change will be made to the MicroBlaze reset vector at
194 If non-zero, a jump instruction to this address, will be written
195 to the reset vector at address 0x0.
196 If you are unsure, set it to default value 0x0.
198 config KERNEL_START_BOOL
199 bool "Set custom kernel base address"
200 depends on ADVANCED_OPTIONS
202 This option allows you to set the kernel virtual address at which
203 the kernel will map low memory (the kernel image will be linked at
204 this address). This can be useful in optimizing the virtual memory
205 layout of the system.
207 Say N here unless you know what you are doing.
210 hex "Virtual address of kernel base" if KERNEL_START_BOOL
211 default "0xc0000000" if MMU
212 default KERNEL_BASE_ADDR if !MMU
214 config TASK_SIZE_BOOL
215 bool "Set custom user task size"
216 depends on ADVANCED_OPTIONS && MMU
218 This option allows you to set the amount of virtual address space
219 allocated to user tasks. This can be useful in optimizing the
220 virtual memory layout of the system.
222 Say N here unless you know what you are doing.
225 hex "Size of user task space" if TASK_SIZE_BOOL
230 default MICROBLAZE_4K_PAGES
231 depends on ADVANCED_OPTIONS && !MMU
233 Select the kernel logical page size. Increasing the page size
234 will reduce software overhead at each page boundary, allow
235 hardware prefetch mechanisms to be more effective, and allow
236 larger dma transfers increasing IO efficiency and reducing
237 overhead. However the utilization of memory will increase.
238 For example, each cached file will using a multiple of the
239 page size to hold its contents and the difference between the
240 end of file and the end of page is wasted.
242 If unsure, choose 4K_PAGES.
244 config MICROBLAZE_4K_PAGES
247 config MICROBLAZE_16K_PAGES
250 config MICROBLAZE_64K_PAGES
256 hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
257 default "0x80000" if MMU
263 menu "Executable file formats"
265 source "fs/Kconfig.binfmt"
281 bool "Xilinx PCI host bridge support"
284 source "drivers/pci/Kconfig"
290 source "drivers/Kconfig"
294 source "arch/microblaze/Kconfig.debug"
296 source "security/Kconfig"
298 source "crypto/Kconfig"