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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 | ||
575ca288 MS |
124 | endmenu |
125 | ||
a116f6d5 MS |
126 | menu "Advanced setup" |
127 | ||
128 | config ADVANCED_OPTIONS | |
129 | bool "Prompt for advanced kernel configuration options" | |
a116f6d5 MS |
130 | help |
131 | This option will enable prompting for a variety of advanced kernel | |
132 | configuration options. These options can cause the kernel to not | |
133 | work if they are set incorrectly, but can be used to optimize certain | |
134 | aspects of kernel memory management. | |
135 | ||
136 | Unless you know what you are doing, say N here. | |
137 | ||
138 | comment "Default settings for advanced configuration options are used" | |
139 | depends on !ADVANCED_OPTIONS | |
140 | ||
3a0d7a4d MS |
141 | config XILINX_UNCACHED_SHADOW |
142 | bool "Are you using uncached shadow for RAM ?" | |
143 | depends on ADVANCED_OPTIONS && !MMU | |
144 | default n | |
145 | help | |
146 | This is needed to be able to allocate uncachable memory regions. | |
147 | The feature requires the design to define the RAM memory controller | |
148 | window to be twice as large as the actual physical memory. | |
149 | ||
a116f6d5 MS |
150 | config HIGHMEM_START_BOOL |
151 | bool "Set high memory pool address" | |
152 | depends on ADVANCED_OPTIONS && HIGHMEM | |
153 | help | |
154 | This option allows you to set the base address of the kernel virtual | |
155 | area used to map high memory pages. This can be useful in | |
156 | optimizing the layout of kernel virtual memory. | |
157 | ||
158 | Say N here unless you know what you are doing. | |
159 | ||
160 | config HIGHMEM_START | |
161 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
162 | depends on MMU | |
163 | default "0xfe000000" | |
164 | ||
165 | config LOWMEM_SIZE_BOOL | |
166 | bool "Set maximum low memory" | |
b8a84059 | 167 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
168 | help |
169 | This option allows you to set the maximum amount of memory which | |
170 | will be used as "low memory", that is, memory which the kernel can | |
171 | access directly, without having to set up a kernel virtual mapping. | |
172 | This can be useful in optimizing the layout of kernel virtual | |
173 | memory. | |
174 | ||
175 | Say N here unless you know what you are doing. | |
176 | ||
177 | config LOWMEM_SIZE | |
178 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
a116f6d5 MS |
179 | default "0x30000000" |
180 | ||
181 | config KERNEL_START_BOOL | |
182 | bool "Set custom kernel base address" | |
183 | depends on ADVANCED_OPTIONS | |
184 | help | |
185 | This option allows you to set the kernel virtual address at which | |
186 | the kernel will map low memory (the kernel image will be linked at | |
187 | this address). This can be useful in optimizing the virtual memory | |
188 | layout of the system. | |
189 | ||
190 | Say N here unless you know what you are doing. | |
191 | ||
192 | config KERNEL_START | |
193 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
194 | default "0xc0000000" if MMU | |
195 | default KERNEL_BASE_ADDR if !MMU | |
196 | ||
197 | config TASK_SIZE_BOOL | |
198 | bool "Set custom user task size" | |
b8a84059 | 199 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
200 | help |
201 | This option allows you to set the amount of virtual address space | |
202 | allocated to user tasks. This can be useful in optimizing the | |
203 | virtual memory layout of the system. | |
204 | ||
205 | Say N here unless you know what you are doing. | |
206 | ||
207 | config TASK_SIZE | |
208 | hex "Size of user task space" if TASK_SIZE_BOOL | |
a116f6d5 MS |
209 | default "0x80000000" |
210 | ||
ba9c4f88 SM |
211 | choice |
212 | prompt "Page size" | |
213 | default MICROBLAZE_4K_PAGES | |
214 | depends on ADVANCED_OPTIONS && !MMU | |
215 | help | |
216 | Select the kernel logical page size. Increasing the page size | |
217 | will reduce software overhead at each page boundary, allow | |
218 | hardware prefetch mechanisms to be more effective, and allow | |
219 | larger dma transfers increasing IO efficiency and reducing | |
220 | overhead. However the utilization of memory will increase. | |
221 | For example, each cached file will using a multiple of the | |
222 | page size to hold its contents and the difference between the | |
223 | end of file and the end of page is wasted. | |
224 | ||
225 | If unsure, choose 4K_PAGES. | |
226 | ||
227 | config MICROBLAZE_4K_PAGES | |
228 | bool "4k page size" | |
229 | ||
230 | config MICROBLAZE_8K_PAGES | |
231 | bool "8k page size" | |
232 | ||
233 | config MICROBLAZE_16K_PAGES | |
234 | bool "16k page size" | |
235 | ||
236 | config MICROBLAZE_32K_PAGES | |
237 | bool "32k page size" | |
238 | ||
239 | endchoice | |
240 | ||
a116f6d5 MS |
241 | endmenu |
242 | ||
575ca288 MS |
243 | source "mm/Kconfig" |
244 | ||
245 | menu "Exectuable file formats" | |
246 | ||
247 | source "fs/Kconfig.binfmt" | |
248 | ||
249 | endmenu | |
250 | ||
a6475c13 MS |
251 | menu "Bus Options" |
252 | ||
253 | config PCI | |
254 | bool "PCI support" | |
255 | ||
256 | config PCI_DOMAINS | |
257 | def_bool PCI | |
258 | ||
259 | config PCI_SYSCALL | |
260 | def_bool PCI | |
261 | ||
733cc218 MS |
262 | config PCI_XILINX |
263 | bool "Xilinx PCI host bridge support" | |
264 | depends on PCI | |
265 | ||
a6475c13 MS |
266 | source "drivers/pci/Kconfig" |
267 | ||
268 | endmenu | |
269 | ||
575ca288 MS |
270 | source "net/Kconfig" |
271 | ||
272 | source "drivers/Kconfig" | |
273 | ||
274 | source "fs/Kconfig" | |
275 | ||
276 | source "arch/microblaze/Kconfig.debug" | |
277 | ||
278 | source "security/Kconfig" | |
279 | ||
280 | source "crypto/Kconfig" | |
281 | ||
282 | source "lib/Kconfig" |