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
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
28 select GENERIC_IDLE_POLL_SETUP
29 select MODULES_USE_ELF_RELA
30 select CLONE_BACKWARDS3
36 config RWSEM_GENERIC_SPINLOCK
42 config RWSEM_XCHGADD_ALGORITHM
45 config ARCH_HAS_ILOG2_U32
48 config ARCH_HAS_ILOG2_U64
51 config GENERIC_HWEIGHT
54 config GENERIC_CALIBRATE_DELAY
60 config STACKTRACE_SUPPORT
63 config LOCKDEP_SUPPORT
66 config HAVE_LATENCYTOP_SUPPORT
71 source "kernel/Kconfig.freezer"
73 source "arch/microblaze/platform/Kconfig.platform"
75 menu "Processor type and features"
77 source "kernel/Kconfig.preempt"
79 source "kernel/Kconfig.hz"
85 comment "Boot options"
88 bool "Default bootloader kernel arguments"
91 string "Default kernel command string"
92 depends on CMDLINE_BOOL
93 default "console=ttyUL0,115200"
95 On some architectures there is currently no way for the boot loader
96 to pass arguments to the kernel. For these architectures, you should
97 supply some command-line options at build time by entering them
101 bool "Force default kernel command string"
102 depends on CMDLINE_BOOL
105 Set this to have arguments from the default kernel command string
106 override those passed by the boot loader.
109 bool "Enable seccomp to safely compute untrusted bytecode"
113 This kernel feature is useful for number crunching applications
114 that may need to compute untrusted bytecode during their
115 execution. By using pipes or other transports made available to
116 the process as file descriptors supporting the read/write
117 syscalls, it's possible to isolate those applications in
118 their own address space using seccomp. Once seccomp is
119 enabled via /proc/<pid>/seccomp, it cannot be disabled
120 and the task is only allowed to execute a few safe syscalls
121 defined by each seccomp mode.
123 If unsure, say Y. Only embedded should say N here.
127 menu "Advanced setup"
129 config ADVANCED_OPTIONS
130 bool "Prompt for advanced kernel configuration options"
132 This option will enable prompting for a variety of advanced kernel
133 configuration options. These options can cause the kernel to not
134 work if they are set incorrectly, but can be used to optimize certain
135 aspects of kernel memory management.
137 Unless you know what you are doing, say N here.
139 comment "Default settings for advanced configuration options are used"
140 depends on !ADVANCED_OPTIONS
142 config XILINX_UNCACHED_SHADOW
143 bool "Are you using uncached shadow for RAM ?"
144 depends on ADVANCED_OPTIONS && !MMU
147 This is needed to be able to allocate uncachable memory regions.
148 The feature requires the design to define the RAM memory controller
149 window to be twice as large as the actual physical memory.
152 bool "High memory support"
155 The address space of Microblaze processors is only 4 Gigabytes large
156 and it has to accommodate user address space, kernel address
157 space as well as some memory mapped IO. That means that, if you
158 have a large amount of physical memory and/or IO, not all of the
159 memory can be "permanently mapped" by the kernel. The physical
160 memory that is not permanently mapped is called "high memory".
164 config LOWMEM_SIZE_BOOL
165 bool "Set maximum low memory"
166 depends on ADVANCED_OPTIONS && MMU
168 This option allows you to set the maximum amount of memory which
169 will be used as "low memory", that is, memory which the kernel can
170 access directly, without having to set up a kernel virtual mapping.
171 This can be useful in optimizing the layout of kernel virtual
174 Say N here unless you know what you are doing.
177 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
180 config MANUAL_RESET_VECTOR
181 hex "Microblaze reset vector address setup"
184 Set this option to have the kernel override the CPU Reset vector.
185 If zero, no change will be made to the MicroBlaze reset vector at
187 If non-zero, a jump instruction to this address, will be written
188 to the reset vector at address 0x0.
189 If you are unsure, set it to default value 0x0.
191 config KERNEL_START_BOOL
192 bool "Set custom kernel base address"
193 depends on ADVANCED_OPTIONS
195 This option allows you to set the kernel virtual address at which
196 the kernel will map low memory (the kernel image will be linked at
197 this address). This can be useful in optimizing the virtual memory
198 layout of the system.
200 Say N here unless you know what you are doing.
203 hex "Virtual address of kernel base" if KERNEL_START_BOOL
204 default "0xc0000000" if MMU
205 default KERNEL_BASE_ADDR if !MMU
207 config TASK_SIZE_BOOL
208 bool "Set custom user task size"
209 depends on ADVANCED_OPTIONS && MMU
211 This option allows you to set the amount of virtual address space
212 allocated to user tasks. This can be useful in optimizing the
213 virtual memory layout of the system.
215 Say N here unless you know what you are doing.
218 hex "Size of user task space" if TASK_SIZE_BOOL
223 default MICROBLAZE_4K_PAGES
224 depends on ADVANCED_OPTIONS && !MMU
226 Select the kernel logical page size. Increasing the page size
227 will reduce software overhead at each page boundary, allow
228 hardware prefetch mechanisms to be more effective, and allow
229 larger dma transfers increasing IO efficiency and reducing
230 overhead. However the utilization of memory will increase.
231 For example, each cached file will using a multiple of the
232 page size to hold its contents and the difference between the
233 end of file and the end of page is wasted.
235 If unsure, choose 4K_PAGES.
237 config MICROBLAZE_4K_PAGES
240 config MICROBLAZE_16K_PAGES
243 config MICROBLAZE_64K_PAGES
252 menu "Executable file formats"
254 source "fs/Kconfig.binfmt"
270 bool "Xilinx PCI host bridge support"
273 source "drivers/pci/Kconfig"
279 source "drivers/Kconfig"
283 source "arch/microblaze/Kconfig.debug"
285 source "security/Kconfig"
287 source "crypto/Kconfig"