3 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select HAVE_MEMBLOCK_NODE_MAP
6 select HAVE_FUNCTION_TRACER
7 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
8 select HAVE_FUNCTION_GRAPH_TRACER
9 select HAVE_DYNAMIC_FTRACE
10 select HAVE_FTRACE_MCOUNT_RECORD
11 select ARCH_WANT_OPTIONAL_GPIOLIB
15 select HAVE_DMA_API_DEBUG
16 select TRACING_SUPPORT
18 select OF_EARLY_FLATTREE
19 select ARCH_WANT_IPC_PARSE_VERSION
20 select HAVE_DEBUG_KMEMLEAK
23 select GENERIC_IRQ_PROBE
24 select GENERIC_IRQ_SHOW
25 select GENERIC_PCI_IOMAP
26 select GENERIC_CPU_DEVICES
27 select GENERIC_ATOMIC64
28 select GENERIC_CLOCKEVENTS
29 select GENERIC_IDLE_POLL_SETUP
30 select MODULES_USE_ELF_RELA
31 select CLONE_BACKWARDS3
33 select BUILDTIME_EXTABLE_SORT
38 config RWSEM_GENERIC_SPINLOCK
44 config RWSEM_XCHGADD_ALGORITHM
47 config ARCH_HAS_ILOG2_U32
50 config ARCH_HAS_ILOG2_U64
53 config GENERIC_HWEIGHT
56 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"
87 comment "Boot options"
90 bool "Default bootloader kernel arguments"
93 string "Default kernel command string"
94 depends on CMDLINE_BOOL
95 default "console=ttyUL0,115200"
97 On some architectures there is currently no way for the boot loader
98 to pass arguments to the kernel. For these architectures, you should
99 supply some command-line options at build time by entering them
103 bool "Force default kernel command string"
104 depends on CMDLINE_BOOL
107 Set this to have arguments from the default kernel command string
108 override those passed by the boot loader.
111 bool "Enable seccomp to safely compute untrusted bytecode"
115 This kernel feature is useful for number crunching applications
116 that may need to compute untrusted bytecode during their
117 execution. By using pipes or other transports made available to
118 the process as file descriptors supporting the read/write
119 syscalls, it's possible to isolate those applications in
120 their own address space using seccomp. Once seccomp is
121 enabled via /proc/<pid>/seccomp, it cannot be disabled
122 and the task is only allowed to execute a few safe syscalls
123 defined by each seccomp mode.
125 If unsure, say Y. Only embedded should say N here.
129 menu "Advanced setup"
131 config ADVANCED_OPTIONS
132 bool "Prompt for advanced kernel configuration options"
134 This option will enable prompting for a variety of advanced kernel
135 configuration options. These options can cause the kernel to not
136 work if they are set incorrectly, but can be used to optimize certain
137 aspects of kernel memory management.
139 Unless you know what you are doing, say N here.
141 comment "Default settings for advanced configuration options are used"
142 depends on !ADVANCED_OPTIONS
144 config XILINX_UNCACHED_SHADOW
145 bool "Are you using uncached shadow for RAM ?"
146 depends on ADVANCED_OPTIONS && !MMU
149 This is needed to be able to allocate uncachable memory regions.
150 The feature requires the design to define the RAM memory controller
151 window to be twice as large as the actual physical memory.
154 bool "High memory support"
157 The address space of Microblaze processors is only 4 Gigabytes large
158 and it has to accommodate user address space, kernel address
159 space as well as some memory mapped IO. That means that, if you
160 have a large amount of physical memory and/or IO, not all of the
161 memory can be "permanently mapped" by the kernel. The physical
162 memory that is not permanently mapped is called "high memory".
166 config LOWMEM_SIZE_BOOL
167 bool "Set maximum low memory"
168 depends on ADVANCED_OPTIONS && MMU
170 This option allows you to set the maximum amount of memory which
171 will be used as "low memory", that is, memory which the kernel can
172 access directly, without having to set up a kernel virtual mapping.
173 This can be useful in optimizing the layout of kernel virtual
176 Say N here unless you know what you are doing.
179 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
182 config MANUAL_RESET_VECTOR
183 hex "Microblaze reset vector address setup"
186 Set this option to have the kernel override the CPU Reset vector.
187 If zero, no change will be made to the MicroBlaze reset vector at
189 If non-zero, a jump instruction to this address, will be written
190 to the reset vector at address 0x0.
191 If you are unsure, set it to default value 0x0.
193 config KERNEL_START_BOOL
194 bool "Set custom kernel base address"
195 depends on ADVANCED_OPTIONS
197 This option allows you to set the kernel virtual address at which
198 the kernel will map low memory (the kernel image will be linked at
199 this address). This can be useful in optimizing the virtual memory
200 layout of the system.
202 Say N here unless you know what you are doing.
205 hex "Virtual address of kernel base" if KERNEL_START_BOOL
206 default "0xc0000000" if MMU
207 default KERNEL_BASE_ADDR if !MMU
209 config TASK_SIZE_BOOL
210 bool "Set custom user task size"
211 depends on ADVANCED_OPTIONS && MMU
213 This option allows you to set the amount of virtual address space
214 allocated to user tasks. This can be useful in optimizing the
215 virtual memory layout of the system.
217 Say N here unless you know what you are doing.
220 hex "Size of user task space" if TASK_SIZE_BOOL
225 default MICROBLAZE_4K_PAGES
226 depends on ADVANCED_OPTIONS && !MMU
228 Select the kernel logical page size. Increasing the page size
229 will reduce software overhead at each page boundary, allow
230 hardware prefetch mechanisms to be more effective, and allow
231 larger dma transfers increasing IO efficiency and reducing
232 overhead. However the utilization of memory will increase.
233 For example, each cached file will using a multiple of the
234 page size to hold its contents and the difference between the
235 end of file and the end of page is wasted.
237 If unsure, choose 4K_PAGES.
239 config MICROBLAZE_4K_PAGES
242 config MICROBLAZE_16K_PAGES
245 config MICROBLAZE_64K_PAGES
254 menu "Executable file formats"
256 source "fs/Kconfig.binfmt"
272 bool "Xilinx PCI host bridge support"
275 source "drivers/pci/Kconfig"
281 source "drivers/Kconfig"
285 source "arch/microblaze/Kconfig.debug"
287 source "security/Kconfig"
289 source "crypto/Kconfig"