3 select ARCH_MIGHT_HAVE_PC_PARPORT
4 select ARCH_WANT_IPC_PARSE_VERSION
5 select ARCH_WANT_OPTIONAL_GPIOLIB
6 select BUILDTIME_EXTABLE_SORT
8 select CLONE_BACKWARDS3
10 select GENERIC_ATOMIC64
11 select GENERIC_CLOCKEVENTS
12 select GENERIC_CPU_DEVICES
13 select GENERIC_IDLE_POLL_SETUP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
16 select GENERIC_PCI_IOMAP
17 select GENERIC_SCHED_CLOCK
19 select HAVE_DEBUG_KMEMLEAK
20 select HAVE_DMA_API_DEBUG
22 select HAVE_DYNAMIC_FTRACE
23 select HAVE_FTRACE_MCOUNT_RECORD
24 select HAVE_FUNCTION_GRAPH_TRACER
25 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
26 select HAVE_FUNCTION_TRACER
28 select HAVE_MEMBLOCK_NODE_MAP
31 select MODULES_USE_ELF_RELA
33 select OF_EARLY_FLATTREE
34 select TRACING_SUPPORT
40 config RWSEM_GENERIC_SPINLOCK
46 config RWSEM_XCHGADD_ALGORITHM
49 config ARCH_HAS_ILOG2_U32
52 config ARCH_HAS_ILOG2_U64
55 config GENERIC_HWEIGHT
58 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/Kconfig.platform"
79 menu "Processor type and features"
81 source "kernel/Kconfig.preempt"
83 source "kernel/Kconfig.hz"
89 comment "Boot options"
92 bool "Default bootloader kernel arguments"
95 string "Default kernel command string"
96 depends on CMDLINE_BOOL
97 default "console=ttyUL0,115200"
99 On some architectures there is currently no way for the boot loader
100 to pass arguments to the kernel. For these architectures, you should
101 supply some command-line options at build time by entering them
105 bool "Force default kernel command string"
106 depends on CMDLINE_BOOL
109 Set this to have arguments from the default kernel command string
110 override those passed by the boot loader.
113 bool "Enable seccomp to safely compute untrusted bytecode"
117 This kernel feature is useful for number crunching applications
118 that may need to compute untrusted bytecode during their
119 execution. By using pipes or other transports made available to
120 the process as file descriptors supporting the read/write
121 syscalls, it's possible to isolate those applications in
122 their own address space using seccomp. Once seccomp is
123 enabled via /proc/<pid>/seccomp, it cannot be disabled
124 and the task is only allowed to execute a few safe syscalls
125 defined by each seccomp mode.
127 If unsure, say Y. Only embedded should say N here.
131 menu "Advanced setup"
133 config ADVANCED_OPTIONS
134 bool "Prompt for advanced kernel configuration options"
136 This option will enable prompting for a variety of advanced kernel
137 configuration options. These options can cause the kernel to not
138 work if they are set incorrectly, but can be used to optimize certain
139 aspects of kernel memory management.
141 Unless you know what you are doing, say N here.
143 comment "Default settings for advanced configuration options are used"
144 depends on !ADVANCED_OPTIONS
146 config XILINX_UNCACHED_SHADOW
147 bool "Are you using uncached shadow for RAM ?"
148 depends on ADVANCED_OPTIONS && !MMU
151 This is needed to be able to allocate uncachable memory regions.
152 The feature requires the design to define the RAM memory controller
153 window to be twice as large as the actual physical memory.
156 bool "High memory support"
159 The address space of Microblaze processors is only 4 Gigabytes large
160 and it has to accommodate user address space, kernel address
161 space as well as some memory mapped IO. That means that, if you
162 have a large amount of physical memory and/or IO, not all of the
163 memory can be "permanently mapped" by the kernel. The physical
164 memory that is not permanently mapped is called "high memory".
168 config LOWMEM_SIZE_BOOL
169 bool "Set maximum low memory"
170 depends on ADVANCED_OPTIONS && MMU
172 This option allows you to set the maximum amount of memory which
173 will be used as "low memory", that is, memory which the kernel can
174 access directly, without having to set up a kernel virtual mapping.
175 This can be useful in optimizing the layout of kernel virtual
178 Say N here unless you know what you are doing.
181 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
184 config MANUAL_RESET_VECTOR
185 hex "Microblaze reset vector address setup"
188 Set this option to have the kernel override the CPU Reset vector.
189 If zero, no change will be made to the MicroBlaze reset vector at
191 If non-zero, a jump instruction to this address, will be written
192 to the reset vector at address 0x0.
193 If you are unsure, set it to default value 0x0.
195 config KERNEL_START_BOOL
196 bool "Set custom kernel base address"
197 depends on ADVANCED_OPTIONS
199 This option allows you to set the kernel virtual address at which
200 the kernel will map low memory (the kernel image will be linked at
201 this address). This can be useful in optimizing the virtual memory
202 layout of the system.
204 Say N here unless you know what you are doing.
207 hex "Virtual address of kernel base" if KERNEL_START_BOOL
208 default "0xc0000000" if MMU
209 default KERNEL_BASE_ADDR if !MMU
211 config TASK_SIZE_BOOL
212 bool "Set custom user task size"
213 depends on ADVANCED_OPTIONS && MMU
215 This option allows you to set the amount of virtual address space
216 allocated to user tasks. This can be useful in optimizing the
217 virtual memory layout of the system.
219 Say N here unless you know what you are doing.
222 hex "Size of user task space" if TASK_SIZE_BOOL
227 default MICROBLAZE_4K_PAGES
228 depends on ADVANCED_OPTIONS && !MMU
230 Select the kernel logical page size. Increasing the page size
231 will reduce software overhead at each page boundary, allow
232 hardware prefetch mechanisms to be more effective, and allow
233 larger dma transfers increasing IO efficiency and reducing
234 overhead. However the utilization of memory will increase.
235 For example, each cached file will using a multiple of the
236 page size to hold its contents and the difference between the
237 end of file and the end of page is wasted.
239 If unsure, choose 4K_PAGES.
241 config MICROBLAZE_4K_PAGES
244 config MICROBLAZE_16K_PAGES
247 config MICROBLAZE_64K_PAGES
256 menu "Executable file formats"
258 source "fs/Kconfig.binfmt"
274 bool "Xilinx PCI host bridge support"
277 source "drivers/pci/Kconfig"
283 source "drivers/Kconfig"
287 source "arch/microblaze/Kconfig.debug"
289 source "security/Kconfig"
291 source "crypto/Kconfig"