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Commit | Line | Data |
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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 |
cca7c66f | 12 | select HAVE_DEBUG_STACKOVERFLOW |
00512bdd JH |
13 | select HAVE_DYNAMIC_FTRACE |
14 | select HAVE_FTRACE_MCOUNT_RECORD | |
15 | select HAVE_FUNCTION_TRACER | |
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 | |
32 | ||
5633004c JH |
33 | config STACKTRACE_SUPPORT |
34 | def_bool y | |
35 | ||
36 | config LOCKDEP_SUPPORT | |
37 | def_bool y | |
38 | ||
39 | config HAVE_LATENCYTOP_SUPPORT | |
40 | def_bool y | |
41 | ||
42 | config RWSEM_GENERIC_SPINLOCK | |
43 | def_bool y | |
44 | ||
45 | config RWSEM_XCHGADD_ALGORITHM | |
46 | bool | |
47 | ||
48 | config GENERIC_HWEIGHT | |
49 | def_bool y | |
50 | ||
51 | config GENERIC_CALIBRATE_DELAY | |
52 | def_bool y | |
53 | ||
ce816fa8 | 54 | config NO_IOPORT_MAP |
5633004c JH |
55 | def_bool y |
56 | ||
57 | source "init/Kconfig" | |
58 | ||
59 | source "kernel/Kconfig.freezer" | |
60 | ||
61 | menu "Processor type and features" | |
62 | ||
63 | config MMU | |
64 | def_bool y | |
65 | ||
66 | config STACK_GROWSUP | |
67 | def_bool y | |
68 | ||
69 | config HOTPLUG_CPU | |
70 | bool "Enable CPU hotplug support" | |
71 | depends on SMP | |
72 | help | |
73 | Say Y here to allow turning CPUs off and on. CPUs can be | |
74 | controlled through /sys/devices/system/cpu. | |
75 | ||
76 | Say N if you want to disable CPU hotplug. | |
77 | ||
78 | config HIGHMEM | |
79 | bool "High Memory Support" | |
80 | help | |
81 | The address space of Meta processors is only 4 Gigabytes large | |
82 | and it has to accommodate user address space, kernel address | |
83 | space as well as some memory mapped IO. That means that, if you | |
84 | have a large amount of physical memory and/or IO, not all of the | |
85 | memory can be "permanently mapped" by the kernel. The physical | |
86 | memory that is not permanently mapped is called "high memory". | |
87 | ||
88 | Depending on the selected kernel/user memory split, minimum | |
89 | vmalloc space and actual amount of RAM, you may not need this | |
90 | option which should result in a slightly faster kernel. | |
91 | ||
92 | If unsure, say n. | |
93 | ||
94 | source "arch/metag/mm/Kconfig" | |
95 | ||
96 | source "arch/metag/Kconfig.soc" | |
97 | ||
98 | config METAG_META12 | |
99 | bool | |
100 | help | |
101 | Select this from the SoC config symbol to indicate that it contains a | |
102 | Meta 1.2 core. | |
103 | ||
104 | config METAG_META21 | |
105 | bool | |
106 | help | |
107 | Select this from the SoC config symbol to indicate that it contains a | |
108 | Meta 2.1 core. | |
109 | ||
110 | config SMP | |
111 | bool "Symmetric multi-processing support" | |
112 | depends on METAG_META21 && METAG_META21_MMU | |
5633004c JH |
113 | help |
114 | This enables support for systems with more than one thread running | |
115 | Linux. If you have a system with only one thread running Linux, | |
116 | say N. Otherwise, say Y. | |
117 | ||
118 | config NR_CPUS | |
119 | int "Maximum number of CPUs (2-4)" if SMP | |
120 | range 2 4 if SMP | |
121 | default "1" if !SMP | |
122 | default "4" if SMP | |
123 | ||
124 | config METAG_SMP_WRITE_REORDERING | |
125 | bool | |
126 | help | |
127 | This attempts to prevent cache-memory incoherence due to external | |
128 | reordering of writes from different hardware threads when SMP is | |
129 | enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an | |
130 | attempt to catch some of the cases, and also before writes to shared | |
131 | memory in LOCK1 protected atomics and spinlocks. | |
132 | This will not completely prevent cache incoherency on affected cores. | |
133 | ||
134 | config METAG_LNKGET_AROUND_CACHE | |
135 | bool | |
136 | depends on METAG_META21 | |
137 | help | |
138 | This indicates that the LNKGET/LNKSET instructions go around the | |
139 | cache, which requires some extra cache flushes when the memory needs | |
140 | to be accessed by normal GET/SET instructions too. | |
141 | ||
142 | choice | |
143 | prompt "Atomicity primitive" | |
144 | default METAG_ATOMICITY_LNKGET | |
145 | help | |
146 | This option selects the mechanism for performing atomic operations. | |
147 | ||
148 | config METAG_ATOMICITY_IRQSOFF | |
149 | depends on !SMP | |
150 | bool "irqsoff" | |
151 | help | |
152 | This option disables interrupts to achieve atomicity. This mechanism | |
153 | is not SMP-safe. | |
154 | ||
155 | config METAG_ATOMICITY_LNKGET | |
156 | depends on METAG_META21 | |
157 | bool "lnkget/lnkset" | |
158 | help | |
159 | This option uses the LNKGET and LNKSET instructions to achieve | |
160 | atomicity. LNKGET/LNKSET are load-link/store-conditional instructions. | |
161 | Choose this option if your system requires low latency. | |
162 | ||
163 | config METAG_ATOMICITY_LOCK1 | |
164 | depends on SMP | |
165 | bool "lock1" | |
166 | help | |
167 | This option uses the LOCK1 instruction for atomicity. This is mainly | |
168 | provided as a debugging aid if the lnkget/lnkset atomicity primitive | |
169 | isn't working properly. | |
170 | ||
171 | endchoice | |
172 | ||
173 | config METAG_FPU | |
174 | bool "FPU Support" | |
175 | depends on METAG_META21 | |
176 | default y | |
177 | help | |
178 | This option allows processes to use FPU hardware available with this | |
179 | CPU. If this option is not enabled FPU registers will not be saved | |
180 | and restored on context-switch. | |
181 | ||
182 | If you plan on running programs which are compiled to use hard floats | |
183 | say Y here. | |
184 | ||
185 | config METAG_DSP | |
186 | bool "DSP Support" | |
187 | help | |
188 | This option allows processes to use DSP hardware available | |
189 | with this CPU. If this option is not enabled DSP registers | |
190 | will not be saved and restored on context-switch. | |
191 | ||
192 | If you plan on running DSP programs say Y here. | |
193 | ||
194 | config METAG_PERFCOUNTER_IRQS | |
195 | bool "PerfCounters interrupt support" | |
196 | depends on METAG_META21 | |
197 | help | |
198 | This option enables using interrupts to collect information from | |
199 | Performance Counters. This option is supported in new META21 | |
200 | (starting from HTP265). | |
201 | ||
202 | When disabled, Performance Counters information will be collected | |
203 | based on Timer Interrupt. | |
204 | ||
00e6c923 JH |
205 | config HW_PERF_EVENTS |
206 | def_bool METAG_PERFCOUNTER_IRQS && PERF_EVENTS | |
207 | ||
ae85ac71 JH |
208 | config METAG_DA |
209 | bool "DA support" | |
210 | help | |
211 | Say Y if you plan to use a DA debug adapter with Linux. The presence | |
212 | of the DA will be detected automatically at boot, so it is safe to say | |
213 | Y to this option even when booting without a DA. | |
214 | ||
215 | This enables support for services provided by DA JTAG debug adapters, | |
216 | such as: | |
217 | - communication over DA channels (such as the console driver). | |
218 | - use of the DA filesystem. | |
219 | ||
5633004c JH |
220 | menu "Boot options" |
221 | ||
222 | config METAG_BUILTIN_DTB | |
223 | bool "Embed DTB in kernel image" | |
224 | default y | |
225 | help | |
226 | Embeds a device tree binary in the kernel image. | |
227 | ||
228 | config METAG_BUILTIN_DTB_NAME | |
229 | string "Built in DTB" | |
230 | depends on METAG_BUILTIN_DTB | |
231 | help | |
232 | Set the name of the DTB to embed (leave blank to pick one | |
233 | automatically based on kernel configuration). | |
234 | ||
235 | config CMDLINE_BOOL | |
236 | bool "Default bootloader kernel arguments" | |
237 | ||
238 | config CMDLINE | |
239 | string "Kernel command line" | |
240 | depends on CMDLINE_BOOL | |
241 | help | |
242 | On some architectures there is currently no way for the boot loader | |
243 | to pass arguments to the kernel. For these architectures, you should | |
244 | supply some command-line options at build time by entering them | |
245 | here. | |
246 | ||
247 | config CMDLINE_FORCE | |
248 | bool "Force default kernel command string" | |
249 | depends on CMDLINE_BOOL | |
250 | help | |
251 | Set this to have arguments from the default kernel command string | |
252 | override those passed by the boot loader. | |
253 | ||
254 | endmenu | |
255 | ||
256 | source "kernel/Kconfig.preempt" | |
257 | ||
258 | source kernel/Kconfig.hz | |
259 | ||
260 | endmenu | |
261 | ||
262 | menu "Power management options" | |
263 | ||
264 | source kernel/power/Kconfig | |
265 | ||
266 | endmenu | |
267 | ||
268 | menu "Executable file formats" | |
269 | ||
270 | source "fs/Kconfig.binfmt" | |
271 | ||
272 | endmenu | |
273 | ||
274 | source "net/Kconfig" | |
275 | ||
276 | source "drivers/Kconfig" | |
277 | ||
278 | source "fs/Kconfig" | |
279 | ||
280 | source "arch/metag/Kconfig.debug" | |
281 | ||
282 | source "security/Kconfig" | |
283 | ||
284 | source "crypto/Kconfig" | |
285 | ||
286 | source "lib/Kconfig" |