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
19 select HAVE_GENERIC_HARDIRQS
20 select GENERIC_IRQ_PROBE
21 select GENERIC_IRQ_SHOW
22 select GENERIC_PCI_IOMAP
23 select GENERIC_CPU_DEVICES
24 select GENERIC_ATOMIC64
25 select HAVE_GENERIC_INIT_TASK
30 config RWSEM_GENERIC_SPINLOCK
36 config ARCH_POPULATES_NODE_MAP
39 config RWSEM_XCHGADD_ALGORITHM
42 config ARCH_HAS_ILOG2_U32
45 config ARCH_HAS_ILOG2_U64
48 config GENERIC_HWEIGHT
51 config GENERIC_CALIBRATE_DELAY
54 config GENERIC_TIME_VSYSCALL
57 config GENERIC_CLOCKEVENTS
66 config STACKTRACE_SUPPORT
69 config LOCKDEP_SUPPORT
72 config HAVE_LATENCYTOP_SUPPORT
77 source "kernel/Kconfig.freezer"
79 source "arch/microblaze/platform/Kconfig.platform"
81 menu "Processor type and features"
83 source "kernel/time/Kconfig"
85 source "kernel/Kconfig.preempt"
87 source "kernel/Kconfig.hz"
98 comment "Boot options"
101 bool "Default bootloader kernel arguments"
104 string "Default kernel command string"
105 depends on CMDLINE_BOOL
106 default "console=ttyUL0,115200"
108 On some architectures there is currently no way for the boot loader
109 to pass arguments to the kernel. For these architectures, you should
110 supply some command-line options at build time by entering them
114 bool "Force default kernel command string"
115 depends on CMDLINE_BOOL
118 Set this to have arguments from the default kernel command string
119 override those passed by the boot loader.
122 bool "Enable seccomp to safely compute untrusted bytecode"
126 This kernel feature is useful for number crunching applications
127 that may need to compute untrusted bytecode during their
128 execution. By using pipes or other transports made available to
129 the process as file descriptors supporting the read/write
130 syscalls, it's possible to isolate those applications in
131 their own address space using seccomp. Once seccomp is
132 enabled via /proc/<pid>/seccomp, it cannot be disabled
133 and the task is only allowed to execute a few safe syscalls
134 defined by each seccomp mode.
136 If unsure, say Y. Only embedded should say N here.
140 menu "Advanced setup"
142 config ADVANCED_OPTIONS
143 bool "Prompt for advanced kernel configuration options"
145 This option will enable prompting for a variety of advanced kernel
146 configuration options. These options can cause the kernel to not
147 work if they are set incorrectly, but can be used to optimize certain
148 aspects of kernel memory management.
150 Unless you know what you are doing, say N here.
152 comment "Default settings for advanced configuration options are used"
153 depends on !ADVANCED_OPTIONS
155 config XILINX_UNCACHED_SHADOW
156 bool "Are you using uncached shadow for RAM ?"
157 depends on ADVANCED_OPTIONS && !MMU
160 This is needed to be able to allocate uncachable memory regions.
161 The feature requires the design to define the RAM memory controller
162 window to be twice as large as the actual physical memory.
165 bool "High memory support"
168 The address space of Microblaze processors is only 4 Gigabytes large
169 and it has to accommodate user address space, kernel address
170 space as well as some memory mapped IO. That means that, if you
171 have a large amount of physical memory and/or IO, not all of the
172 memory can be "permanently mapped" by the kernel. The physical
173 memory that is not permanently mapped is called "high memory".
177 config LOWMEM_SIZE_BOOL
178 bool "Set maximum low memory"
179 depends on ADVANCED_OPTIONS && MMU
181 This option allows you to set the maximum amount of memory which
182 will be used as "low memory", that is, memory which the kernel can
183 access directly, without having to set up a kernel virtual mapping.
184 This can be useful in optimizing the layout of kernel virtual
187 Say N here unless you know what you are doing.
190 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
193 config MANUAL_RESET_VECTOR
194 hex "Microblaze reset vector address setup"
197 Set this option to have the kernel override the CPU Reset vector.
198 If zero, no change will be made to the MicroBlaze reset vector at
200 If non-zero, a jump instruction to this address, will be written
201 to the reset vector at address 0x0.
202 If you are unsure, set it to default value 0x0.
204 config KERNEL_START_BOOL
205 bool "Set custom kernel base address"
206 depends on ADVANCED_OPTIONS
208 This option allows you to set the kernel virtual address at which
209 the kernel will map low memory (the kernel image will be linked at
210 this address). This can be useful in optimizing the virtual memory
211 layout of the system.
213 Say N here unless you know what you are doing.
216 hex "Virtual address of kernel base" if KERNEL_START_BOOL
217 default "0xc0000000" if MMU
218 default KERNEL_BASE_ADDR if !MMU
220 config TASK_SIZE_BOOL
221 bool "Set custom user task size"
222 depends on ADVANCED_OPTIONS && MMU
224 This option allows you to set the amount of virtual address space
225 allocated to user tasks. This can be useful in optimizing the
226 virtual memory layout of the system.
228 Say N here unless you know what you are doing.
231 hex "Size of user task space" if TASK_SIZE_BOOL
236 default MICROBLAZE_4K_PAGES
237 depends on ADVANCED_OPTIONS && !MMU
239 Select the kernel logical page size. Increasing the page size
240 will reduce software overhead at each page boundary, allow
241 hardware prefetch mechanisms to be more effective, and allow
242 larger dma transfers increasing IO efficiency and reducing
243 overhead. However the utilization of memory will increase.
244 For example, each cached file will using a multiple of the
245 page size to hold its contents and the difference between the
246 end of file and the end of page is wasted.
248 If unsure, choose 4K_PAGES.
250 config MICROBLAZE_4K_PAGES
253 config MICROBLAZE_8K_PAGES
256 config MICROBLAZE_16K_PAGES
259 config MICROBLAZE_32K_PAGES
265 hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
266 default "0x80000" if MMU
272 menu "Executable file formats"
274 source "fs/Kconfig.binfmt"
290 bool "Xilinx PCI host bridge support"
293 source "drivers/pci/Kconfig"
299 source "drivers/Kconfig"
303 source "arch/microblaze/Kconfig.debug"
305 source "security/Kconfig"
307 source "crypto/Kconfig"