Commit | Line | Data |
---|---|---|
575ca288 MS |
1 | config MICROBLAZE |
2 | def_bool y | |
957e3fac | 3 | select ARCH_HAS_GCOV_PROFILE_ALL |
355f65a3 | 4 | select ARCH_MIGHT_HAVE_PC_PARPORT |
07c75d7a | 5 | select ARCH_NO_COHERENT_DMA_MMAP if !MMU |
c1d7e01d | 6 | select ARCH_WANT_IPC_PARSE_VERSION |
25213388 | 7 | select BUILDTIME_EXTABLE_SORT |
bb0eb050 | 8 | select TIMER_OF |
25213388 MS |
9 | select CLONE_BACKWARDS3 |
10 | select COMMON_CLK | |
11 | select GENERIC_ATOMIC64 | |
12 | select GENERIC_CLOCKEVENTS | |
13 | select GENERIC_CPU_DEVICES | |
14 | select GENERIC_IDLE_POLL_SETUP | |
b6e31629 | 15 | select GENERIC_IRQ_PROBE |
9d61c18b | 16 | select GENERIC_IRQ_SHOW |
1b34d160 | 17 | select GENERIC_PCI_IOMAP |
839396ab | 18 | select GENERIC_SCHED_CLOCK |
7b13277b | 19 | select HAVE_ARCH_HASH |
25213388 MS |
20 | select HAVE_ARCH_KGDB |
21 | select HAVE_DEBUG_KMEMLEAK | |
22 | select HAVE_DMA_API_DEBUG | |
25213388 MS |
23 | select HAVE_DYNAMIC_FTRACE |
24 | select HAVE_FTRACE_MCOUNT_RECORD | |
25 | select HAVE_FUNCTION_GRAPH_TRACER | |
25213388 | 26 | select HAVE_FUNCTION_TRACER |
101646a2 | 27 | select NO_BOOTMEM |
25213388 MS |
28 | select HAVE_MEMBLOCK |
29 | select HAVE_MEMBLOCK_NODE_MAP | |
30 | select HAVE_OPROFILE | |
31 | select IRQ_DOMAIN | |
0547dc78 | 32 | select XILINX_INTC |
786d35d4 | 33 | select MODULES_USE_ELF_RELA |
25213388 MS |
34 | select OF |
35 | select OF_EARLY_FLATTREE | |
36 | select TRACING_SUPPORT | |
37 | select VIRT_TO_BUS | |
fff7fb0b | 38 | select CPU_NO_EFFICIENT_FFS |
575ca288 | 39 | |
206d3642 BM |
40 | # Endianness selection |
41 | choice | |
42 | prompt "Endianness selection" | |
428dbf15 | 43 | default CPU_LITTLE_ENDIAN |
206d3642 BM |
44 | help |
45 | microblaze architectures can be configured for either little or | |
46 | big endian formats. Be sure to select the appropriate mode. | |
47 | ||
48 | config CPU_BIG_ENDIAN | |
49 | bool "Big endian" | |
50 | ||
51 | config CPU_LITTLE_ENDIAN | |
52 | bool "Little endian" | |
53 | ||
54 | endchoice | |
55 | ||
575ca288 MS |
56 | config SWAP |
57 | def_bool n | |
58 | ||
59 | config RWSEM_GENERIC_SPINLOCK | |
60 | def_bool y | |
61 | ||
4e2e4124 MS |
62 | config ZONE_DMA |
63 | def_bool y | |
64 | ||
575ca288 MS |
65 | config RWSEM_XCHGADD_ALGORITHM |
66 | bool | |
67 | ||
68 | config ARCH_HAS_ILOG2_U32 | |
69 | def_bool n | |
70 | ||
71 | config ARCH_HAS_ILOG2_U64 | |
72 | def_bool n | |
73 | ||
575ca288 MS |
74 | config GENERIC_HWEIGHT |
75 | def_bool y | |
76 | ||
575ca288 MS |
77 | config GENERIC_CALIBRATE_DELAY |
78 | def_bool y | |
79 | ||
14f87389 RLB |
80 | config GENERIC_CSUM |
81 | def_bool y | |
82 | ||
24b45a12 MS |
83 | config STACKTRACE_SUPPORT |
84 | def_bool y | |
85 | ||
bf2d8096 MS |
86 | config LOCKDEP_SUPPORT |
87 | def_bool y | |
88 | ||
575ca288 MS |
89 | source "init/Kconfig" |
90 | ||
91 | source "kernel/Kconfig.freezer" | |
92 | ||
c24cf712 | 93 | source "arch/microblaze/Kconfig.platform" |
575ca288 MS |
94 | |
95 | menu "Processor type and features" | |
96 | ||
575ca288 MS |
97 | source "kernel/Kconfig.preempt" |
98 | ||
99 | source "kernel/Kconfig.hz" | |
100 | ||
101 | config MMU | |
a116f6d5 MS |
102 | bool "MMU support" |
103 | default n | |
575ca288 | 104 | |
575ca288 MS |
105 | comment "Boot options" |
106 | ||
107 | config CMDLINE_BOOL | |
108 | bool "Default bootloader kernel arguments" | |
109 | ||
110 | config CMDLINE | |
111 | string "Default kernel command string" | |
112 | depends on CMDLINE_BOOL | |
113 | default "console=ttyUL0,115200" | |
114 | help | |
115 | On some architectures there is currently no way for the boot loader | |
116 | to pass arguments to the kernel. For these architectures, you should | |
117 | supply some command-line options at build time by entering them | |
118 | here. | |
119 | ||
120 | config CMDLINE_FORCE | |
121 | bool "Force default kernel command string" | |
122 | depends on CMDLINE_BOOL | |
123 | default n | |
124 | help | |
125 | Set this to have arguments from the default kernel command string | |
126 | override those passed by the boot loader. | |
127 | ||
68c6ac33 MS |
128 | config SECCOMP |
129 | bool "Enable seccomp to safely compute untrusted bytecode" | |
130 | depends on PROC_FS | |
131 | default y | |
132 | help | |
133 | This kernel feature is useful for number crunching applications | |
134 | that may need to compute untrusted bytecode during their | |
135 | execution. By using pipes or other transports made available to | |
136 | the process as file descriptors supporting the read/write | |
137 | syscalls, it's possible to isolate those applications in | |
138 | their own address space using seccomp. Once seccomp is | |
139 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
140 | and the task is only allowed to execute a few safe syscalls | |
141 | defined by each seccomp mode. | |
142 | ||
143 | If unsure, say Y. Only embedded should say N here. | |
144 | ||
575ca288 MS |
145 | endmenu |
146 | ||
b408e2c2 | 147 | menu "Kernel features" |
a116f6d5 | 148 | |
4cbbbb43 MS |
149 | config NR_CPUS |
150 | int | |
151 | default "1" | |
152 | ||
a116f6d5 MS |
153 | config ADVANCED_OPTIONS |
154 | bool "Prompt for advanced kernel configuration options" | |
a116f6d5 MS |
155 | help |
156 | This option will enable prompting for a variety of advanced kernel | |
157 | configuration options. These options can cause the kernel to not | |
158 | work if they are set incorrectly, but can be used to optimize certain | |
159 | aspects of kernel memory management. | |
160 | ||
161 | Unless you know what you are doing, say N here. | |
162 | ||
163 | comment "Default settings for advanced configuration options are used" | |
164 | depends on !ADVANCED_OPTIONS | |
165 | ||
3a0d7a4d MS |
166 | config XILINX_UNCACHED_SHADOW |
167 | bool "Are you using uncached shadow for RAM ?" | |
168 | depends on ADVANCED_OPTIONS && !MMU | |
169 | default n | |
170 | help | |
171 | This is needed to be able to allocate uncachable memory regions. | |
172 | The feature requires the design to define the RAM memory controller | |
173 | window to be twice as large as the actual physical memory. | |
174 | ||
2f2f371f MS |
175 | config HIGHMEM |
176 | bool "High memory support" | |
a116f6d5 | 177 | depends on MMU |
a116f6d5 | 178 | help |
2f2f371f MS |
179 | The address space of Microblaze processors is only 4 Gigabytes large |
180 | and it has to accommodate user address space, kernel address | |
181 | space as well as some memory mapped IO. That means that, if you | |
182 | have a large amount of physical memory and/or IO, not all of the | |
183 | memory can be "permanently mapped" by the kernel. The physical | |
184 | memory that is not permanently mapped is called "high memory". | |
a116f6d5 | 185 | |
2f2f371f | 186 | If unsure, say n. |
a116f6d5 MS |
187 | |
188 | config LOWMEM_SIZE_BOOL | |
189 | bool "Set maximum low memory" | |
b8a84059 | 190 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
191 | help |
192 | This option allows you to set the maximum amount of memory which | |
193 | will be used as "low memory", that is, memory which the kernel can | |
194 | access directly, without having to set up a kernel virtual mapping. | |
195 | This can be useful in optimizing the layout of kernel virtual | |
196 | memory. | |
197 | ||
198 | Say N here unless you know what you are doing. | |
199 | ||
200 | config LOWMEM_SIZE | |
201 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
a116f6d5 MS |
202 | default "0x30000000" |
203 | ||
0b9b0200 MS |
204 | config MANUAL_RESET_VECTOR |
205 | hex "Microblaze reset vector address setup" | |
206 | default "0x0" | |
207 | help | |
208 | Set this option to have the kernel override the CPU Reset vector. | |
209 | If zero, no change will be made to the MicroBlaze reset vector at | |
210 | address 0x0. | |
211 | If non-zero, a jump instruction to this address, will be written | |
212 | to the reset vector at address 0x0. | |
213 | If you are unsure, set it to default value 0x0. | |
214 | ||
a116f6d5 MS |
215 | config KERNEL_START_BOOL |
216 | bool "Set custom kernel base address" | |
217 | depends on ADVANCED_OPTIONS | |
218 | help | |
219 | This option allows you to set the kernel virtual address at which | |
220 | the kernel will map low memory (the kernel image will be linked at | |
221 | this address). This can be useful in optimizing the virtual memory | |
222 | layout of the system. | |
223 | ||
224 | Say N here unless you know what you are doing. | |
225 | ||
226 | config KERNEL_START | |
227 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
228 | default "0xc0000000" if MMU | |
229 | default KERNEL_BASE_ADDR if !MMU | |
230 | ||
231 | config TASK_SIZE_BOOL | |
232 | bool "Set custom user task size" | |
b8a84059 | 233 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
234 | help |
235 | This option allows you to set the amount of virtual address space | |
236 | allocated to user tasks. This can be useful in optimizing the | |
237 | virtual memory layout of the system. | |
238 | ||
239 | Say N here unless you know what you are doing. | |
240 | ||
241 | config TASK_SIZE | |
242 | hex "Size of user task space" if TASK_SIZE_BOOL | |
a116f6d5 MS |
243 | default "0x80000000" |
244 | ||
ba9c4f88 SM |
245 | choice |
246 | prompt "Page size" | |
247 | default MICROBLAZE_4K_PAGES | |
248 | depends on ADVANCED_OPTIONS && !MMU | |
249 | help | |
250 | Select the kernel logical page size. Increasing the page size | |
251 | will reduce software overhead at each page boundary, allow | |
252 | hardware prefetch mechanisms to be more effective, and allow | |
253 | larger dma transfers increasing IO efficiency and reducing | |
254 | overhead. However the utilization of memory will increase. | |
255 | For example, each cached file will using a multiple of the | |
256 | page size to hold its contents and the difference between the | |
257 | end of file and the end of page is wasted. | |
258 | ||
259 | If unsure, choose 4K_PAGES. | |
260 | ||
261 | config MICROBLAZE_4K_PAGES | |
262 | bool "4k page size" | |
263 | ||
ba9c4f88 SM |
264 | config MICROBLAZE_16K_PAGES |
265 | bool "16k page size" | |
266 | ||
6e80cff5 MS |
267 | config MICROBLAZE_64K_PAGES |
268 | bool "64k page size" | |
ba9c4f88 SM |
269 | |
270 | endchoice | |
271 | ||
575ca288 MS |
272 | source "mm/Kconfig" |
273 | ||
7acdc1cf MS |
274 | endmenu |
275 | ||
910672de | 276 | menu "Executable file formats" |
575ca288 MS |
277 | |
278 | source "fs/Kconfig.binfmt" | |
279 | ||
280 | endmenu | |
281 | ||
a6475c13 MS |
282 | menu "Bus Options" |
283 | ||
284 | config PCI | |
285 | bool "PCI support" | |
286 | ||
287 | config PCI_DOMAINS | |
288 | def_bool PCI | |
289 | ||
01cf9d52 BKG |
290 | config PCI_DOMAINS_GENERIC |
291 | def_bool PCI_DOMAINS | |
292 | ||
a6475c13 MS |
293 | config PCI_SYSCALL |
294 | def_bool PCI | |
295 | ||
733cc218 MS |
296 | config PCI_XILINX |
297 | bool "Xilinx PCI host bridge support" | |
298 | depends on PCI | |
299 | ||
a6475c13 MS |
300 | source "drivers/pci/Kconfig" |
301 | ||
302 | endmenu | |
303 | ||
575ca288 MS |
304 | source "net/Kconfig" |
305 | ||
306 | source "drivers/Kconfig" | |
307 | ||
308 | source "fs/Kconfig" | |
309 | ||
310 | source "arch/microblaze/Kconfig.debug" | |
311 | ||
312 | source "security/Kconfig" | |
313 | ||
314 | source "crypto/Kconfig" | |
315 | ||
316 | source "lib/Kconfig" |