Commit | Line | Data |
---|---|---|
5633004c JH |
1 | config METAG |
2 | def_bool y | |
3 | select EMBEDDED | |
4 | select GENERIC_ATOMIC64 | |
5 | select GENERIC_CLOCKEVENTS | |
6 | select GENERIC_IRQ_SHOW | |
5633004c JH |
7 | select GENERIC_SMP_IDLE_THREAD |
8 | select HAVE_64BIT_ALIGNED_ACCESS | |
9 | select HAVE_ARCH_TRACEHOOK | |
00512bdd | 10 | select HAVE_C_RECORDMCOUNT |
5633004c | 11 | select HAVE_DEBUG_KMEMLEAK |
00512bdd JH |
12 | select HAVE_DYNAMIC_FTRACE |
13 | select HAVE_FTRACE_MCOUNT_RECORD | |
14 | select HAVE_FUNCTION_TRACER | |
15 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST | |
5633004c JH |
16 | select HAVE_KERNEL_BZIP2 |
17 | select HAVE_KERNEL_GZIP | |
18 | select HAVE_KERNEL_LZO | |
19 | select HAVE_KERNEL_XZ | |
20 | select HAVE_MEMBLOCK | |
21 | select HAVE_MEMBLOCK_NODE_MAP | |
22 | select HAVE_MOD_ARCH_SPECIFIC | |
00e6c923 | 23 | select HAVE_OPROFILE |
903b20ad | 24 | select HAVE_PERF_EVENTS |
5633004c | 25 | select HAVE_SYSCALL_TRACEPOINTS |
b92021b0 | 26 | select HAVE_UNDERSCORE_SYMBOL_PREFIX |
5633004c JH |
27 | select IRQ_DOMAIN |
28 | select MODULES_USE_ELF_RELA | |
29 | select OF | |
30 | select OF_EARLY_FLATTREE | |
31 | select SPARSE_IRQ | |
d1a1dc0b | 32 | select HAVE_DEBUG_STACKOVERFLOW |
5633004c | 33 | |
5633004c JH |
34 | config STACKTRACE_SUPPORT |
35 | def_bool y | |
36 | ||
37 | config LOCKDEP_SUPPORT | |
38 | def_bool y | |
39 | ||
40 | config HAVE_LATENCYTOP_SUPPORT | |
41 | def_bool y | |
42 | ||
43 | config RWSEM_GENERIC_SPINLOCK | |
44 | def_bool y | |
45 | ||
46 | config RWSEM_XCHGADD_ALGORITHM | |
47 | bool | |
48 | ||
49 | config GENERIC_HWEIGHT | |
50 | def_bool y | |
51 | ||
52 | config GENERIC_CALIBRATE_DELAY | |
53 | def_bool y | |
54 | ||
5633004c JH |
55 | config NO_IOPORT |
56 | def_bool y | |
57 | ||
58 | source "init/Kconfig" | |
59 | ||
60 | source "kernel/Kconfig.freezer" | |
61 | ||
62 | menu "Processor type and features" | |
63 | ||
64 | config MMU | |
65 | def_bool y | |
66 | ||
67 | config STACK_GROWSUP | |
68 | def_bool y | |
69 | ||
70 | config HOTPLUG_CPU | |
71 | bool "Enable CPU hotplug support" | |
72 | depends on SMP | |
73 | help | |
74 | Say Y here to allow turning CPUs off and on. CPUs can be | |
75 | controlled through /sys/devices/system/cpu. | |
76 | ||
77 | Say N if you want to disable CPU hotplug. | |
78 | ||
79 | config HIGHMEM | |
80 | bool "High Memory Support" | |
81 | help | |
82 | The address space of Meta processors is only 4 Gigabytes large | |
83 | and it has to accommodate user address space, kernel address | |
84 | space as well as some memory mapped IO. That means that, if you | |
85 | have a large amount of physical memory and/or IO, not all of the | |
86 | memory can be "permanently mapped" by the kernel. The physical | |
87 | memory that is not permanently mapped is called "high memory". | |
88 | ||
89 | Depending on the selected kernel/user memory split, minimum | |
90 | vmalloc space and actual amount of RAM, you may not need this | |
91 | option which should result in a slightly faster kernel. | |
92 | ||
93 | If unsure, say n. | |
94 | ||
95 | source "arch/metag/mm/Kconfig" | |
96 | ||
97 | source "arch/metag/Kconfig.soc" | |
98 | ||
99 | config METAG_META12 | |
100 | bool | |
101 | help | |
102 | Select this from the SoC config symbol to indicate that it contains a | |
103 | Meta 1.2 core. | |
104 | ||
105 | config METAG_META21 | |
106 | bool | |
107 | help | |
108 | Select this from the SoC config symbol to indicate that it contains a | |
109 | Meta 2.1 core. | |
110 | ||
111 | config SMP | |
112 | bool "Symmetric multi-processing support" | |
113 | depends on METAG_META21 && METAG_META21_MMU | |
114 | select USE_GENERIC_SMP_HELPERS | |
115 | help | |
116 | This enables support for systems with more than one thread running | |
117 | Linux. If you have a system with only one thread running Linux, | |
118 | say N. Otherwise, say Y. | |
119 | ||
120 | config NR_CPUS | |
121 | int "Maximum number of CPUs (2-4)" if SMP | |
122 | range 2 4 if SMP | |
123 | default "1" if !SMP | |
124 | default "4" if SMP | |
125 | ||
126 | config METAG_SMP_WRITE_REORDERING | |
127 | bool | |
128 | help | |
129 | This attempts to prevent cache-memory incoherence due to external | |
130 | reordering of writes from different hardware threads when SMP is | |
131 | enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an | |
132 | attempt to catch some of the cases, and also before writes to shared | |
133 | memory in LOCK1 protected atomics and spinlocks. | |
134 | This will not completely prevent cache incoherency on affected cores. | |
135 | ||
136 | config METAG_LNKGET_AROUND_CACHE | |
137 | bool | |
138 | depends on METAG_META21 | |
139 | help | |
140 | This indicates that the LNKGET/LNKSET instructions go around the | |
141 | cache, which requires some extra cache flushes when the memory needs | |
142 | to be accessed by normal GET/SET instructions too. | |
143 | ||
144 | choice | |
145 | prompt "Atomicity primitive" | |
146 | default METAG_ATOMICITY_LNKGET | |
147 | help | |
148 | This option selects the mechanism for performing atomic operations. | |
149 | ||
150 | config METAG_ATOMICITY_IRQSOFF | |
151 | depends on !SMP | |
152 | bool "irqsoff" | |
153 | help | |
154 | This option disables interrupts to achieve atomicity. This mechanism | |
155 | is not SMP-safe. | |
156 | ||
157 | config METAG_ATOMICITY_LNKGET | |
158 | depends on METAG_META21 | |
159 | bool "lnkget/lnkset" | |
160 | help | |
161 | This option uses the LNKGET and LNKSET instructions to achieve | |
162 | atomicity. LNKGET/LNKSET are load-link/store-conditional instructions. | |
163 | Choose this option if your system requires low latency. | |
164 | ||
165 | config METAG_ATOMICITY_LOCK1 | |
166 | depends on SMP | |
167 | bool "lock1" | |
168 | help | |
169 | This option uses the LOCK1 instruction for atomicity. This is mainly | |
170 | provided as a debugging aid if the lnkget/lnkset atomicity primitive | |
171 | isn't working properly. | |
172 | ||
173 | endchoice | |
174 | ||
175 | config METAG_FPU | |
176 | bool "FPU Support" | |
177 | depends on METAG_META21 | |
178 | default y | |
179 | help | |
180 | This option allows processes to use FPU hardware available with this | |
181 | CPU. If this option is not enabled FPU registers will not be saved | |
182 | and restored on context-switch. | |
183 | ||
184 | If you plan on running programs which are compiled to use hard floats | |
185 | say Y here. | |
186 | ||
187 | config METAG_DSP | |
188 | bool "DSP Support" | |
189 | help | |
190 | This option allows processes to use DSP hardware available | |
191 | with this CPU. If this option is not enabled DSP registers | |
192 | will not be saved and restored on context-switch. | |
193 | ||
194 | If you plan on running DSP programs say Y here. | |
195 | ||
196 | config METAG_PERFCOUNTER_IRQS | |
197 | bool "PerfCounters interrupt support" | |
198 | depends on METAG_META21 | |
199 | help | |
200 | This option enables using interrupts to collect information from | |
201 | Performance Counters. This option is supported in new META21 | |
202 | (starting from HTP265). | |
203 | ||
204 | When disabled, Performance Counters information will be collected | |
205 | based on Timer Interrupt. | |
206 | ||
00e6c923 JH |
207 | config HW_PERF_EVENTS |
208 | def_bool METAG_PERFCOUNTER_IRQS && PERF_EVENTS | |
209 | ||
ae85ac71 JH |
210 | config METAG_DA |
211 | bool "DA support" | |
212 | help | |
213 | Say Y if you plan to use a DA debug adapter with Linux. The presence | |
214 | of the DA will be detected automatically at boot, so it is safe to say | |
215 | Y to this option even when booting without a DA. | |
216 | ||
217 | This enables support for services provided by DA JTAG debug adapters, | |
218 | such as: | |
219 | - communication over DA channels (such as the console driver). | |
220 | - use of the DA filesystem. | |
221 | ||
5633004c JH |
222 | menu "Boot options" |
223 | ||
224 | config METAG_BUILTIN_DTB | |
225 | bool "Embed DTB in kernel image" | |
226 | default y | |
227 | help | |
228 | Embeds a device tree binary in the kernel image. | |
229 | ||
230 | config METAG_BUILTIN_DTB_NAME | |
231 | string "Built in DTB" | |
232 | depends on METAG_BUILTIN_DTB | |
233 | help | |
234 | Set the name of the DTB to embed (leave blank to pick one | |
235 | automatically based on kernel configuration). | |
236 | ||
237 | config CMDLINE_BOOL | |
238 | bool "Default bootloader kernel arguments" | |
239 | ||
240 | config CMDLINE | |
241 | string "Kernel command line" | |
242 | depends on CMDLINE_BOOL | |
243 | help | |
244 | On some architectures there is currently no way for the boot loader | |
245 | to pass arguments to the kernel. For these architectures, you should | |
246 | supply some command-line options at build time by entering them | |
247 | here. | |
248 | ||
249 | config CMDLINE_FORCE | |
250 | bool "Force default kernel command string" | |
251 | depends on CMDLINE_BOOL | |
252 | help | |
253 | Set this to have arguments from the default kernel command string | |
254 | override those passed by the boot loader. | |
255 | ||
256 | endmenu | |
257 | ||
258 | source "kernel/Kconfig.preempt" | |
259 | ||
260 | source kernel/Kconfig.hz | |
261 | ||
262 | endmenu | |
263 | ||
264 | menu "Power management options" | |
265 | ||
266 | source kernel/power/Kconfig | |
267 | ||
268 | endmenu | |
269 | ||
270 | menu "Executable file formats" | |
271 | ||
272 | source "fs/Kconfig.binfmt" | |
273 | ||
274 | endmenu | |
275 | ||
276 | source "net/Kconfig" | |
277 | ||
278 | source "drivers/Kconfig" | |
279 | ||
280 | source "fs/Kconfig" | |
281 | ||
282 | source "arch/metag/Kconfig.debug" | |
283 | ||
284 | source "security/Kconfig" | |
285 | ||
286 | source "crypto/Kconfig" | |
287 | ||
288 | source "lib/Kconfig" |