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Commit | Line | Data |
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5633004c JH |
1 | config SYMBOL_PREFIX |
2 | string | |
3 | default "_" | |
4 | ||
5 | config METAG | |
6 | def_bool y | |
7 | select EMBEDDED | |
8 | select GENERIC_ATOMIC64 | |
9 | select GENERIC_CLOCKEVENTS | |
10 | select GENERIC_IRQ_SHOW | |
5633004c JH |
11 | select GENERIC_SMP_IDLE_THREAD |
12 | select HAVE_64BIT_ALIGNED_ACCESS | |
13 | select HAVE_ARCH_TRACEHOOK | |
00512bdd | 14 | select HAVE_C_RECORDMCOUNT |
5633004c | 15 | select HAVE_DEBUG_KMEMLEAK |
00512bdd JH |
16 | select HAVE_DYNAMIC_FTRACE |
17 | select HAVE_FTRACE_MCOUNT_RECORD | |
18 | select HAVE_FUNCTION_TRACER | |
19 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST | |
5633004c | 20 | select HAVE_GENERIC_HARDIRQS |
5633004c JH |
21 | select HAVE_KERNEL_BZIP2 |
22 | select HAVE_KERNEL_GZIP | |
23 | select HAVE_KERNEL_LZO | |
24 | select HAVE_KERNEL_XZ | |
25 | select HAVE_MEMBLOCK | |
26 | select HAVE_MEMBLOCK_NODE_MAP | |
27 | select HAVE_MOD_ARCH_SPECIFIC | |
903b20ad | 28 | select HAVE_PERF_EVENTS |
5633004c JH |
29 | select HAVE_SYSCALL_TRACEPOINTS |
30 | select IRQ_DOMAIN | |
31 | select MODULES_USE_ELF_RELA | |
32 | select OF | |
33 | select OF_EARLY_FLATTREE | |
34 | select SPARSE_IRQ | |
35 | ||
5633004c JH |
36 | config STACKTRACE_SUPPORT |
37 | def_bool y | |
38 | ||
39 | config LOCKDEP_SUPPORT | |
40 | def_bool y | |
41 | ||
42 | config HAVE_LATENCYTOP_SUPPORT | |
43 | def_bool y | |
44 | ||
45 | config RWSEM_GENERIC_SPINLOCK | |
46 | def_bool y | |
47 | ||
48 | config RWSEM_XCHGADD_ALGORITHM | |
49 | bool | |
50 | ||
51 | config GENERIC_HWEIGHT | |
52 | def_bool y | |
53 | ||
54 | config GENERIC_CALIBRATE_DELAY | |
55 | def_bool y | |
56 | ||
57 | config GENERIC_GPIO | |
58 | def_bool n | |
59 | ||
60 | config NO_IOPORT | |
61 | def_bool y | |
62 | ||
63 | source "init/Kconfig" | |
64 | ||
65 | source "kernel/Kconfig.freezer" | |
66 | ||
67 | menu "Processor type and features" | |
68 | ||
69 | config MMU | |
70 | def_bool y | |
71 | ||
72 | config STACK_GROWSUP | |
73 | def_bool y | |
74 | ||
75 | config HOTPLUG_CPU | |
76 | bool "Enable CPU hotplug support" | |
77 | depends on SMP | |
78 | help | |
79 | Say Y here to allow turning CPUs off and on. CPUs can be | |
80 | controlled through /sys/devices/system/cpu. | |
81 | ||
82 | Say N if you want to disable CPU hotplug. | |
83 | ||
84 | config HIGHMEM | |
85 | bool "High Memory Support" | |
86 | help | |
87 | The address space of Meta processors is only 4 Gigabytes large | |
88 | and it has to accommodate user address space, kernel address | |
89 | space as well as some memory mapped IO. That means that, if you | |
90 | have a large amount of physical memory and/or IO, not all of the | |
91 | memory can be "permanently mapped" by the kernel. The physical | |
92 | memory that is not permanently mapped is called "high memory". | |
93 | ||
94 | Depending on the selected kernel/user memory split, minimum | |
95 | vmalloc space and actual amount of RAM, you may not need this | |
96 | option which should result in a slightly faster kernel. | |
97 | ||
98 | If unsure, say n. | |
99 | ||
100 | source "arch/metag/mm/Kconfig" | |
101 | ||
102 | source "arch/metag/Kconfig.soc" | |
103 | ||
104 | config METAG_META12 | |
105 | bool | |
106 | help | |
107 | Select this from the SoC config symbol to indicate that it contains a | |
108 | Meta 1.2 core. | |
109 | ||
110 | config METAG_META21 | |
111 | bool | |
112 | help | |
113 | Select this from the SoC config symbol to indicate that it contains a | |
114 | Meta 2.1 core. | |
115 | ||
116 | config SMP | |
117 | bool "Symmetric multi-processing support" | |
118 | depends on METAG_META21 && METAG_META21_MMU | |
119 | select USE_GENERIC_SMP_HELPERS | |
120 | help | |
121 | This enables support for systems with more than one thread running | |
122 | Linux. If you have a system with only one thread running Linux, | |
123 | say N. Otherwise, say Y. | |
124 | ||
125 | config NR_CPUS | |
126 | int "Maximum number of CPUs (2-4)" if SMP | |
127 | range 2 4 if SMP | |
128 | default "1" if !SMP | |
129 | default "4" if SMP | |
130 | ||
131 | config METAG_SMP_WRITE_REORDERING | |
132 | bool | |
133 | help | |
134 | This attempts to prevent cache-memory incoherence due to external | |
135 | reordering of writes from different hardware threads when SMP is | |
136 | enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an | |
137 | attempt to catch some of the cases, and also before writes to shared | |
138 | memory in LOCK1 protected atomics and spinlocks. | |
139 | This will not completely prevent cache incoherency on affected cores. | |
140 | ||
141 | config METAG_LNKGET_AROUND_CACHE | |
142 | bool | |
143 | depends on METAG_META21 | |
144 | help | |
145 | This indicates that the LNKGET/LNKSET instructions go around the | |
146 | cache, which requires some extra cache flushes when the memory needs | |
147 | to be accessed by normal GET/SET instructions too. | |
148 | ||
149 | choice | |
150 | prompt "Atomicity primitive" | |
151 | default METAG_ATOMICITY_LNKGET | |
152 | help | |
153 | This option selects the mechanism for performing atomic operations. | |
154 | ||
155 | config METAG_ATOMICITY_IRQSOFF | |
156 | depends on !SMP | |
157 | bool "irqsoff" | |
158 | help | |
159 | This option disables interrupts to achieve atomicity. This mechanism | |
160 | is not SMP-safe. | |
161 | ||
162 | config METAG_ATOMICITY_LNKGET | |
163 | depends on METAG_META21 | |
164 | bool "lnkget/lnkset" | |
165 | help | |
166 | This option uses the LNKGET and LNKSET instructions to achieve | |
167 | atomicity. LNKGET/LNKSET are load-link/store-conditional instructions. | |
168 | Choose this option if your system requires low latency. | |
169 | ||
170 | config METAG_ATOMICITY_LOCK1 | |
171 | depends on SMP | |
172 | bool "lock1" | |
173 | help | |
174 | This option uses the LOCK1 instruction for atomicity. This is mainly | |
175 | provided as a debugging aid if the lnkget/lnkset atomicity primitive | |
176 | isn't working properly. | |
177 | ||
178 | endchoice | |
179 | ||
180 | config METAG_FPU | |
181 | bool "FPU Support" | |
182 | depends on METAG_META21 | |
183 | default y | |
184 | help | |
185 | This option allows processes to use FPU hardware available with this | |
186 | CPU. If this option is not enabled FPU registers will not be saved | |
187 | and restored on context-switch. | |
188 | ||
189 | If you plan on running programs which are compiled to use hard floats | |
190 | say Y here. | |
191 | ||
192 | config METAG_DSP | |
193 | bool "DSP Support" | |
194 | help | |
195 | This option allows processes to use DSP hardware available | |
196 | with this CPU. If this option is not enabled DSP registers | |
197 | will not be saved and restored on context-switch. | |
198 | ||
199 | If you plan on running DSP programs say Y here. | |
200 | ||
201 | config METAG_PERFCOUNTER_IRQS | |
202 | bool "PerfCounters interrupt support" | |
203 | depends on METAG_META21 | |
204 | help | |
205 | This option enables using interrupts to collect information from | |
206 | Performance Counters. This option is supported in new META21 | |
207 | (starting from HTP265). | |
208 | ||
209 | When disabled, Performance Counters information will be collected | |
210 | based on Timer Interrupt. | |
211 | ||
ae85ac71 JH |
212 | config METAG_DA |
213 | bool "DA support" | |
214 | help | |
215 | Say Y if you plan to use a DA debug adapter with Linux. The presence | |
216 | of the DA will be detected automatically at boot, so it is safe to say | |
217 | Y to this option even when booting without a DA. | |
218 | ||
219 | This enables support for services provided by DA JTAG debug adapters, | |
220 | such as: | |
221 | - communication over DA channels (such as the console driver). | |
222 | - use of the DA filesystem. | |
223 | ||
5633004c JH |
224 | menu "Boot options" |
225 | ||
226 | config METAG_BUILTIN_DTB | |
227 | bool "Embed DTB in kernel image" | |
228 | default y | |
229 | help | |
230 | Embeds a device tree binary in the kernel image. | |
231 | ||
232 | config METAG_BUILTIN_DTB_NAME | |
233 | string "Built in DTB" | |
234 | depends on METAG_BUILTIN_DTB | |
235 | help | |
236 | Set the name of the DTB to embed (leave blank to pick one | |
237 | automatically based on kernel configuration). | |
238 | ||
239 | config CMDLINE_BOOL | |
240 | bool "Default bootloader kernel arguments" | |
241 | ||
242 | config CMDLINE | |
243 | string "Kernel command line" | |
244 | depends on CMDLINE_BOOL | |
245 | help | |
246 | On some architectures there is currently no way for the boot loader | |
247 | to pass arguments to the kernel. For these architectures, you should | |
248 | supply some command-line options at build time by entering them | |
249 | here. | |
250 | ||
251 | config CMDLINE_FORCE | |
252 | bool "Force default kernel command string" | |
253 | depends on CMDLINE_BOOL | |
254 | help | |
255 | Set this to have arguments from the default kernel command string | |
256 | override those passed by the boot loader. | |
257 | ||
258 | endmenu | |
259 | ||
260 | source "kernel/Kconfig.preempt" | |
261 | ||
262 | source kernel/Kconfig.hz | |
263 | ||
264 | endmenu | |
265 | ||
266 | menu "Power management options" | |
267 | ||
268 | source kernel/power/Kconfig | |
269 | ||
270 | endmenu | |
271 | ||
272 | menu "Executable file formats" | |
273 | ||
274 | source "fs/Kconfig.binfmt" | |
275 | ||
276 | endmenu | |
277 | ||
278 | source "net/Kconfig" | |
279 | ||
280 | source "drivers/Kconfig" | |
281 | ||
282 | source "fs/Kconfig" | |
283 | ||
284 | source "arch/metag/Kconfig.debug" | |
285 | ||
286 | source "security/Kconfig" | |
287 | ||
288 | source "crypto/Kconfig" | |
289 | ||
290 | source "lib/Kconfig" |