Commit | Line | Data |
---|---|---|
575ca288 MS |
1 | config MICROBLAZE |
2 | def_bool y | |
17c46a6a | 3 | select ARCH_NO_SWAP |
58b04406 | 4 | select ARCH_HAS_DMA_COHERENT_TO_PFN if MMU |
957e3fac | 5 | select ARCH_HAS_GCOV_PROFILE_ALL |
5411ad27 CH |
6 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
7 | select ARCH_HAS_SYNC_DMA_FOR_DEVICE | |
355f65a3 | 8 | select ARCH_MIGHT_HAVE_PC_PARPORT |
07c75d7a | 9 | select ARCH_NO_COHERENT_DMA_MMAP if !MMU |
c1d7e01d | 10 | select ARCH_WANT_IPC_PARSE_VERSION |
25213388 | 11 | select BUILDTIME_EXTABLE_SORT |
bb0eb050 | 12 | select TIMER_OF |
25213388 MS |
13 | select CLONE_BACKWARDS3 |
14 | select COMMON_CLK | |
bc3ec75d | 15 | select DMA_DIRECT_OPS |
25213388 MS |
16 | select GENERIC_ATOMIC64 |
17 | select GENERIC_CLOCKEVENTS | |
18 | select GENERIC_CPU_DEVICES | |
19 | select GENERIC_IDLE_POLL_SETUP | |
b6e31629 | 20 | select GENERIC_IRQ_PROBE |
9d61c18b | 21 | select GENERIC_IRQ_SHOW |
1b34d160 | 22 | select GENERIC_PCI_IOMAP |
839396ab | 23 | select GENERIC_SCHED_CLOCK |
7b13277b | 24 | select HAVE_ARCH_HASH |
25213388 MS |
25 | select HAVE_ARCH_KGDB |
26 | select HAVE_DEBUG_KMEMLEAK | |
25213388 MS |
27 | select HAVE_DYNAMIC_FTRACE |
28 | select HAVE_FTRACE_MCOUNT_RECORD | |
29 | select HAVE_FUNCTION_GRAPH_TRACER | |
25213388 MS |
30 | select HAVE_FUNCTION_TRACER |
31 | select HAVE_MEMBLOCK | |
32 | select HAVE_MEMBLOCK_NODE_MAP | |
33 | select HAVE_OPROFILE | |
34 | select IRQ_DOMAIN | |
0547dc78 | 35 | select XILINX_INTC |
786d35d4 | 36 | select MODULES_USE_ELF_RELA |
25213388 MS |
37 | select OF |
38 | select OF_EARLY_FLATTREE | |
39 | select TRACING_SUPPORT | |
40 | select VIRT_TO_BUS | |
fff7fb0b | 41 | select CPU_NO_EFFICIENT_FFS |
575ca288 | 42 | |
206d3642 BM |
43 | # Endianness selection |
44 | choice | |
45 | prompt "Endianness selection" | |
428dbf15 | 46 | default CPU_LITTLE_ENDIAN |
206d3642 BM |
47 | help |
48 | microblaze architectures can be configured for either little or | |
49 | big endian formats. Be sure to select the appropriate mode. | |
50 | ||
51 | config CPU_BIG_ENDIAN | |
52 | bool "Big endian" | |
53 | ||
54 | config CPU_LITTLE_ENDIAN | |
55 | bool "Little endian" | |
56 | ||
57 | endchoice | |
58 | ||
575ca288 MS |
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 | ||
c24cf712 | 89 | source "arch/microblaze/Kconfig.platform" |
575ca288 MS |
90 | |
91 | menu "Processor type and features" | |
92 | ||
575ca288 MS |
93 | source "kernel/Kconfig.hz" |
94 | ||
95 | config MMU | |
a116f6d5 MS |
96 | bool "MMU support" |
97 | default n | |
575ca288 | 98 | |
575ca288 MS |
99 | comment "Boot options" |
100 | ||
101 | config CMDLINE_BOOL | |
102 | bool "Default bootloader kernel arguments" | |
103 | ||
104 | config CMDLINE | |
105 | string "Default kernel command string" | |
106 | depends on CMDLINE_BOOL | |
107 | default "console=ttyUL0,115200" | |
108 | help | |
109 | On some architectures there is currently no way for the boot loader | |
110 | to pass arguments to the kernel. For these architectures, you should | |
111 | supply some command-line options at build time by entering them | |
112 | here. | |
113 | ||
114 | config CMDLINE_FORCE | |
115 | bool "Force default kernel command string" | |
116 | depends on CMDLINE_BOOL | |
117 | default n | |
118 | help | |
119 | Set this to have arguments from the default kernel command string | |
120 | override those passed by the boot loader. | |
121 | ||
68c6ac33 MS |
122 | config SECCOMP |
123 | bool "Enable seccomp to safely compute untrusted bytecode" | |
124 | depends on PROC_FS | |
125 | default y | |
126 | help | |
127 | This kernel feature is useful for number crunching applications | |
128 | that may need to compute untrusted bytecode during their | |
129 | execution. By using pipes or other transports made available to | |
130 | the process as file descriptors supporting the read/write | |
131 | syscalls, it's possible to isolate those applications in | |
132 | their own address space using seccomp. Once seccomp is | |
133 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
134 | and the task is only allowed to execute a few safe syscalls | |
135 | defined by each seccomp mode. | |
136 | ||
137 | If unsure, say Y. Only embedded should say N here. | |
138 | ||
575ca288 MS |
139 | endmenu |
140 | ||
b408e2c2 | 141 | menu "Kernel features" |
a116f6d5 | 142 | |
4cbbbb43 MS |
143 | config NR_CPUS |
144 | int | |
145 | default "1" | |
146 | ||
a116f6d5 MS |
147 | config ADVANCED_OPTIONS |
148 | bool "Prompt for advanced kernel configuration options" | |
a116f6d5 MS |
149 | help |
150 | This option will enable prompting for a variety of advanced kernel | |
151 | configuration options. These options can cause the kernel to not | |
152 | work if they are set incorrectly, but can be used to optimize certain | |
153 | aspects of kernel memory management. | |
154 | ||
155 | Unless you know what you are doing, say N here. | |
156 | ||
157 | comment "Default settings for advanced configuration options are used" | |
158 | depends on !ADVANCED_OPTIONS | |
159 | ||
3a0d7a4d MS |
160 | config XILINX_UNCACHED_SHADOW |
161 | bool "Are you using uncached shadow for RAM ?" | |
162 | depends on ADVANCED_OPTIONS && !MMU | |
163 | default n | |
164 | help | |
165 | This is needed to be able to allocate uncachable memory regions. | |
166 | The feature requires the design to define the RAM memory controller | |
167 | window to be twice as large as the actual physical memory. | |
168 | ||
2f2f371f MS |
169 | config HIGHMEM |
170 | bool "High memory support" | |
a116f6d5 | 171 | depends on MMU |
a116f6d5 | 172 | help |
2f2f371f MS |
173 | The address space of Microblaze processors is only 4 Gigabytes large |
174 | and it has to accommodate user address space, kernel address | |
175 | space as well as some memory mapped IO. That means that, if you | |
176 | have a large amount of physical memory and/or IO, not all of the | |
177 | memory can be "permanently mapped" by the kernel. The physical | |
178 | memory that is not permanently mapped is called "high memory". | |
a116f6d5 | 179 | |
2f2f371f | 180 | If unsure, say n. |
a116f6d5 MS |
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 | ||
0b9b0200 MS |
198 | config MANUAL_RESET_VECTOR |
199 | hex "Microblaze reset vector address setup" | |
200 | default "0x0" | |
201 | help | |
202 | Set this option to have the kernel override the CPU Reset vector. | |
203 | If zero, no change will be made to the MicroBlaze reset vector at | |
204 | address 0x0. | |
205 | If non-zero, a jump instruction to this address, will be written | |
206 | to the reset vector at address 0x0. | |
207 | If you are unsure, set it to default value 0x0. | |
208 | ||
a116f6d5 MS |
209 | config KERNEL_START_BOOL |
210 | bool "Set custom kernel base address" | |
211 | depends on ADVANCED_OPTIONS | |
212 | help | |
213 | This option allows you to set the kernel virtual address at which | |
214 | the kernel will map low memory (the kernel image will be linked at | |
215 | this address). This can be useful in optimizing the virtual memory | |
216 | layout of the system. | |
217 | ||
218 | Say N here unless you know what you are doing. | |
219 | ||
220 | config KERNEL_START | |
221 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
222 | default "0xc0000000" if MMU | |
223 | default KERNEL_BASE_ADDR if !MMU | |
224 | ||
225 | config TASK_SIZE_BOOL | |
226 | bool "Set custom user task size" | |
b8a84059 | 227 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
228 | help |
229 | This option allows you to set the amount of virtual address space | |
230 | allocated to user tasks. This can be useful in optimizing the | |
231 | virtual memory layout of the system. | |
232 | ||
233 | Say N here unless you know what you are doing. | |
234 | ||
235 | config TASK_SIZE | |
236 | hex "Size of user task space" if TASK_SIZE_BOOL | |
a116f6d5 MS |
237 | default "0x80000000" |
238 | ||
ba9c4f88 SM |
239 | choice |
240 | prompt "Page size" | |
241 | default MICROBLAZE_4K_PAGES | |
242 | depends on ADVANCED_OPTIONS && !MMU | |
243 | help | |
244 | Select the kernel logical page size. Increasing the page size | |
245 | will reduce software overhead at each page boundary, allow | |
246 | hardware prefetch mechanisms to be more effective, and allow | |
247 | larger dma transfers increasing IO efficiency and reducing | |
248 | overhead. However the utilization of memory will increase. | |
249 | For example, each cached file will using a multiple of the | |
250 | page size to hold its contents and the difference between the | |
251 | end of file and the end of page is wasted. | |
252 | ||
253 | If unsure, choose 4K_PAGES. | |
254 | ||
255 | config MICROBLAZE_4K_PAGES | |
256 | bool "4k page size" | |
257 | ||
ba9c4f88 SM |
258 | config MICROBLAZE_16K_PAGES |
259 | bool "16k page size" | |
260 | ||
6e80cff5 MS |
261 | config MICROBLAZE_64K_PAGES |
262 | bool "64k page size" | |
ba9c4f88 SM |
263 | |
264 | endchoice | |
265 | ||
575ca288 MS |
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 | ||
01cf9d52 BKG |
276 | config PCI_DOMAINS_GENERIC |
277 | def_bool PCI_DOMAINS | |
278 | ||
a6475c13 MS |
279 | config PCI_SYSCALL |
280 | def_bool PCI | |
281 | ||
733cc218 MS |
282 | config PCI_XILINX |
283 | bool "Xilinx PCI host bridge support" | |
284 | depends on PCI | |
285 | ||
a6475c13 MS |
286 | source "drivers/pci/Kconfig" |
287 | ||
288 | endmenu |