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575ca288 MS |
1 | # For a description of the syntax of this configuration file, |
2 | # see Documentation/kbuild/kconfig-language.txt. | |
3 | ||
4 | mainmenu "Linux/Microblaze Kernel Configuration" | |
5 | ||
6 | config MICROBLAZE | |
7 | def_bool y | |
95f72d1e | 8 | select HAVE_MEMBLOCK |
2fd7c761 | 9 | select HAVE_FUNCTION_TRACER |
6d9e60ce | 10 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
a0d3e665 | 11 | select HAVE_FUNCTION_GRAPH_TRACER |
7d241ff0 MS |
12 | select HAVE_DYNAMIC_FTRACE |
13 | select HAVE_FTRACE_MCOUNT_RECORD | |
afc26cb3 | 14 | select USB_ARCH_HAS_EHCI |
6fa612b5 | 15 | select ARCH_WANT_OPTIONAL_GPIOLIB |
3540ce82 | 16 | select HAVE_OPROFILE |
2d5973cb | 17 | select HAVE_ARCH_KGDB |
ccfe27d7 MS |
18 | select HAVE_DMA_ATTRS |
19 | select HAVE_DMA_API_DEBUG | |
3540ce82 | 20 | select TRACING_SUPPORT |
ae5bf63f SR |
21 | select OF |
22 | select OF_FLATTREE | |
575ca288 MS |
23 | |
24 | config SWAP | |
25 | def_bool n | |
26 | ||
27 | config RWSEM_GENERIC_SPINLOCK | |
28 | def_bool y | |
29 | ||
30 | config RWSEM_XCHGADD_ALGORITHM | |
31 | bool | |
32 | ||
33 | config ARCH_HAS_ILOG2_U32 | |
34 | def_bool n | |
35 | ||
36 | config ARCH_HAS_ILOG2_U64 | |
37 | def_bool n | |
38 | ||
39 | config GENERIC_FIND_NEXT_BIT | |
40 | def_bool y | |
41 | ||
42 | config GENERIC_HWEIGHT | |
43 | def_bool y | |
44 | ||
45 | config GENERIC_HARDIRQS | |
46 | def_bool y | |
47 | ||
48 | config GENERIC_IRQ_PROBE | |
49 | def_bool y | |
50 | ||
51 | config GENERIC_CALIBRATE_DELAY | |
52 | def_bool y | |
53 | ||
575ca288 MS |
54 | config GENERIC_TIME_VSYSCALL |
55 | def_bool n | |
56 | ||
57 | config GENERIC_CLOCKEVENTS | |
58 | def_bool y | |
59 | ||
60 | config GENERIC_HARDIRQS_NO__DO_IRQ | |
61 | def_bool y | |
62 | ||
6fa612b5 MS |
63 | config GENERIC_GPIO |
64 | def_bool y | |
65 | ||
14f87389 RLB |
66 | config GENERIC_CSUM |
67 | def_bool y | |
68 | ||
24b45a12 MS |
69 | config STACKTRACE_SUPPORT |
70 | def_bool y | |
71 | ||
bf2d8096 MS |
72 | config LOCKDEP_SUPPORT |
73 | def_bool y | |
74 | ||
fb5a32dc MS |
75 | config HAVE_LATENCYTOP_SUPPORT |
76 | def_bool y | |
77 | ||
575ca288 MS |
78 | source "init/Kconfig" |
79 | ||
80 | source "kernel/Kconfig.freezer" | |
81 | ||
82 | source "arch/microblaze/platform/Kconfig.platform" | |
83 | ||
84 | menu "Processor type and features" | |
85 | ||
296e2603 | 86 | source "kernel/time/Kconfig" |
575ca288 MS |
87 | |
88 | source "kernel/Kconfig.preempt" | |
89 | ||
90 | source "kernel/Kconfig.hz" | |
91 | ||
92 | config MMU | |
a116f6d5 MS |
93 | bool "MMU support" |
94 | default n | |
575ca288 MS |
95 | |
96 | config NO_MMU | |
97 | bool | |
98 | depends on !MMU | |
99 | default y | |
100 | ||
101 | comment "Boot options" | |
102 | ||
103 | config CMDLINE_BOOL | |
104 | bool "Default bootloader kernel arguments" | |
105 | ||
106 | config CMDLINE | |
107 | string "Default kernel command string" | |
108 | depends on CMDLINE_BOOL | |
109 | default "console=ttyUL0,115200" | |
110 | help | |
111 | On some architectures there is currently no way for the boot loader | |
112 | to pass arguments to the kernel. For these architectures, you should | |
113 | supply some command-line options at build time by entering them | |
114 | here. | |
115 | ||
116 | config CMDLINE_FORCE | |
117 | bool "Force default kernel command string" | |
118 | depends on CMDLINE_BOOL | |
119 | default n | |
120 | help | |
121 | Set this to have arguments from the default kernel command string | |
122 | override those passed by the boot loader. | |
123 | ||
68c6ac33 MS |
124 | config SECCOMP |
125 | bool "Enable seccomp to safely compute untrusted bytecode" | |
126 | depends on PROC_FS | |
127 | default y | |
128 | help | |
129 | This kernel feature is useful for number crunching applications | |
130 | that may need to compute untrusted bytecode during their | |
131 | execution. By using pipes or other transports made available to | |
132 | the process as file descriptors supporting the read/write | |
133 | syscalls, it's possible to isolate those applications in | |
134 | their own address space using seccomp. Once seccomp is | |
135 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
136 | and the task is only allowed to execute a few safe syscalls | |
137 | defined by each seccomp mode. | |
138 | ||
139 | If unsure, say Y. Only embedded should say N here. | |
140 | ||
575ca288 MS |
141 | endmenu |
142 | ||
a116f6d5 MS |
143 | menu "Advanced setup" |
144 | ||
145 | config ADVANCED_OPTIONS | |
146 | bool "Prompt for advanced kernel configuration options" | |
a116f6d5 MS |
147 | help |
148 | This option will enable prompting for a variety of advanced kernel | |
149 | configuration options. These options can cause the kernel to not | |
150 | work if they are set incorrectly, but can be used to optimize certain | |
151 | aspects of kernel memory management. | |
152 | ||
153 | Unless you know what you are doing, say N here. | |
154 | ||
155 | comment "Default settings for advanced configuration options are used" | |
156 | depends on !ADVANCED_OPTIONS | |
157 | ||
3a0d7a4d MS |
158 | config XILINX_UNCACHED_SHADOW |
159 | bool "Are you using uncached shadow for RAM ?" | |
160 | depends on ADVANCED_OPTIONS && !MMU | |
161 | default n | |
162 | help | |
163 | This is needed to be able to allocate uncachable memory regions. | |
164 | The feature requires the design to define the RAM memory controller | |
165 | window to be twice as large as the actual physical memory. | |
166 | ||
a116f6d5 MS |
167 | config HIGHMEM_START_BOOL |
168 | bool "Set high memory pool address" | |
169 | depends on ADVANCED_OPTIONS && HIGHMEM | |
170 | help | |
171 | This option allows you to set the base address of the kernel virtual | |
172 | area used to map high memory pages. This can be useful in | |
173 | optimizing the layout of kernel virtual memory. | |
174 | ||
175 | Say N here unless you know what you are doing. | |
176 | ||
177 | config HIGHMEM_START | |
178 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
179 | depends on MMU | |
180 | default "0xfe000000" | |
181 | ||
182 | config LOWMEM_SIZE_BOOL | |
183 | bool "Set maximum low memory" | |
b8a84059 | 184 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
185 | help |
186 | This option allows you to set the maximum amount of memory which | |
187 | will be used as "low memory", that is, memory which the kernel can | |
188 | access directly, without having to set up a kernel virtual mapping. | |
189 | This can be useful in optimizing the layout of kernel virtual | |
190 | memory. | |
191 | ||
192 | Say N here unless you know what you are doing. | |
193 | ||
194 | config LOWMEM_SIZE | |
195 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
a116f6d5 MS |
196 | default "0x30000000" |
197 | ||
198 | config KERNEL_START_BOOL | |
199 | bool "Set custom kernel base address" | |
200 | depends on ADVANCED_OPTIONS | |
201 | help | |
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. | |
206 | ||
207 | Say N here unless you know what you are doing. | |
208 | ||
209 | config KERNEL_START | |
210 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
211 | default "0xc0000000" if MMU | |
212 | default KERNEL_BASE_ADDR if !MMU | |
213 | ||
214 | config TASK_SIZE_BOOL | |
215 | bool "Set custom user task size" | |
b8a84059 | 216 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
217 | help |
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. | |
221 | ||
222 | Say N here unless you know what you are doing. | |
223 | ||
224 | config TASK_SIZE | |
225 | hex "Size of user task space" if TASK_SIZE_BOOL | |
a116f6d5 MS |
226 | default "0x80000000" |
227 | ||
ba9c4f88 SM |
228 | choice |
229 | prompt "Page size" | |
230 | default MICROBLAZE_4K_PAGES | |
231 | depends on ADVANCED_OPTIONS && !MMU | |
232 | help | |
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. | |
241 | ||
242 | If unsure, choose 4K_PAGES. | |
243 | ||
244 | config MICROBLAZE_4K_PAGES | |
245 | bool "4k page size" | |
246 | ||
247 | config MICROBLAZE_8K_PAGES | |
248 | bool "8k page size" | |
249 | ||
250 | config MICROBLAZE_16K_PAGES | |
251 | bool "16k page size" | |
252 | ||
253 | config MICROBLAZE_32K_PAGES | |
254 | bool "32k page size" | |
255 | ||
256 | endchoice | |
257 | ||
a116f6d5 MS |
258 | endmenu |
259 | ||
575ca288 MS |
260 | source "mm/Kconfig" |
261 | ||
262 | menu "Exectuable file formats" | |
263 | ||
264 | source "fs/Kconfig.binfmt" | |
265 | ||
266 | endmenu | |
267 | ||
a6475c13 MS |
268 | menu "Bus Options" |
269 | ||
270 | config PCI | |
271 | bool "PCI support" | |
272 | ||
273 | config PCI_DOMAINS | |
274 | def_bool PCI | |
275 | ||
276 | config PCI_SYSCALL | |
277 | def_bool PCI | |
278 | ||
733cc218 MS |
279 | config PCI_XILINX |
280 | bool "Xilinx PCI host bridge support" | |
281 | depends on PCI | |
282 | ||
a6475c13 MS |
283 | source "drivers/pci/Kconfig" |
284 | ||
285 | endmenu | |
286 | ||
575ca288 MS |
287 | source "net/Kconfig" |
288 | ||
289 | source "drivers/Kconfig" | |
290 | ||
291 | source "fs/Kconfig" | |
292 | ||
293 | source "arch/microblaze/Kconfig.debug" | |
294 | ||
295 | source "security/Kconfig" | |
296 | ||
297 | source "crypto/Kconfig" | |
298 | ||
299 | source "lib/Kconfig" |