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 |
cca7c66f | 12 | select HAVE_DEBUG_STACKOVERFLOW |
00512bdd | 13 | select HAVE_DYNAMIC_FTRACE |
5f56a5df | 14 | select HAVE_EXIT_THREAD |
00512bdd JH |
15 | select HAVE_FTRACE_MCOUNT_RECORD |
16 | select HAVE_FUNCTION_TRACER | |
5633004c JH |
17 | select HAVE_KERNEL_BZIP2 |
18 | select HAVE_KERNEL_GZIP | |
19 | select HAVE_KERNEL_LZO | |
20 | select HAVE_KERNEL_XZ | |
21 | select HAVE_MEMBLOCK | |
22 | select HAVE_MEMBLOCK_NODE_MAP | |
23 | select HAVE_MOD_ARCH_SPECIFIC | |
00e6c923 | 24 | select HAVE_OPROFILE |
903b20ad | 25 | select HAVE_PERF_EVENTS |
5633004c | 26 | select HAVE_SYSCALL_TRACEPOINTS |
b92021b0 | 27 | select HAVE_UNDERSCORE_SYMBOL_PREFIX |
5633004c JH |
28 | select IRQ_DOMAIN |
29 | select MODULES_USE_ELF_RELA | |
30 | select OF | |
31 | select OF_EARLY_FLATTREE | |
32 | select SPARSE_IRQ | |
fff7fb0b | 33 | select CPU_NO_EFFICIENT_FFS |
5633004c | 34 | |
5633004c JH |
35 | config STACKTRACE_SUPPORT |
36 | def_bool y | |
37 | ||
38 | config LOCKDEP_SUPPORT | |
39 | def_bool y | |
40 | ||
5633004c JH |
41 | config RWSEM_GENERIC_SPINLOCK |
42 | def_bool y | |
43 | ||
44 | config RWSEM_XCHGADD_ALGORITHM | |
45 | bool | |
46 | ||
47 | config GENERIC_HWEIGHT | |
48 | def_bool y | |
49 | ||
50 | config GENERIC_CALIBRATE_DELAY | |
51 | def_bool y | |
52 | ||
ce816fa8 | 53 | config NO_IOPORT_MAP |
5633004c JH |
54 | def_bool y |
55 | ||
56 | source "init/Kconfig" | |
57 | ||
58 | source "kernel/Kconfig.freezer" | |
59 | ||
60 | menu "Processor type and features" | |
61 | ||
62 | config MMU | |
63 | def_bool y | |
64 | ||
65 | config STACK_GROWSUP | |
66 | def_bool y | |
67 | ||
68 | config HOTPLUG_CPU | |
69 | bool "Enable CPU hotplug support" | |
70 | depends on SMP | |
71 | help | |
72 | Say Y here to allow turning CPUs off and on. CPUs can be | |
73 | controlled through /sys/devices/system/cpu. | |
74 | ||
75 | Say N if you want to disable CPU hotplug. | |
76 | ||
77 | config HIGHMEM | |
78 | bool "High Memory Support" | |
79 | help | |
80 | The address space of Meta processors is only 4 Gigabytes large | |
81 | and it has to accommodate user address space, kernel address | |
82 | space as well as some memory mapped IO. That means that, if you | |
83 | have a large amount of physical memory and/or IO, not all of the | |
84 | memory can be "permanently mapped" by the kernel. The physical | |
85 | memory that is not permanently mapped is called "high memory". | |
86 | ||
87 | Depending on the selected kernel/user memory split, minimum | |
88 | vmalloc space and actual amount of RAM, you may not need this | |
89 | option which should result in a slightly faster kernel. | |
90 | ||
91 | If unsure, say n. | |
92 | ||
93 | source "arch/metag/mm/Kconfig" | |
94 | ||
95 | source "arch/metag/Kconfig.soc" | |
96 | ||
97 | config METAG_META12 | |
98 | bool | |
99 | help | |
100 | Select this from the SoC config symbol to indicate that it contains a | |
101 | Meta 1.2 core. | |
102 | ||
103 | config METAG_META21 | |
104 | bool | |
105 | help | |
106 | Select this from the SoC config symbol to indicate that it contains a | |
107 | Meta 2.1 core. | |
108 | ||
109 | config SMP | |
110 | bool "Symmetric multi-processing support" | |
111 | depends on METAG_META21 && METAG_META21_MMU | |
5633004c JH |
112 | help |
113 | This enables support for systems with more than one thread running | |
114 | Linux. If you have a system with only one thread running Linux, | |
115 | say N. Otherwise, say Y. | |
116 | ||
117 | config NR_CPUS | |
118 | int "Maximum number of CPUs (2-4)" if SMP | |
119 | range 2 4 if SMP | |
120 | default "1" if !SMP | |
121 | default "4" if SMP | |
122 | ||
123 | config METAG_SMP_WRITE_REORDERING | |
124 | bool | |
125 | help | |
126 | This attempts to prevent cache-memory incoherence due to external | |
127 | reordering of writes from different hardware threads when SMP is | |
128 | enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an | |
129 | attempt to catch some of the cases, and also before writes to shared | |
130 | memory in LOCK1 protected atomics and spinlocks. | |
131 | This will not completely prevent cache incoherency on affected cores. | |
132 | ||
133 | config METAG_LNKGET_AROUND_CACHE | |
134 | bool | |
135 | depends on METAG_META21 | |
136 | help | |
137 | This indicates that the LNKGET/LNKSET instructions go around the | |
138 | cache, which requires some extra cache flushes when the memory needs | |
139 | to be accessed by normal GET/SET instructions too. | |
140 | ||
141 | choice | |
142 | prompt "Atomicity primitive" | |
143 | default METAG_ATOMICITY_LNKGET | |
144 | help | |
145 | This option selects the mechanism for performing atomic operations. | |
146 | ||
147 | config METAG_ATOMICITY_IRQSOFF | |
148 | depends on !SMP | |
149 | bool "irqsoff" | |
150 | help | |
151 | This option disables interrupts to achieve atomicity. This mechanism | |
152 | is not SMP-safe. | |
153 | ||
154 | config METAG_ATOMICITY_LNKGET | |
155 | depends on METAG_META21 | |
156 | bool "lnkget/lnkset" | |
157 | help | |
158 | This option uses the LNKGET and LNKSET instructions to achieve | |
159 | atomicity. LNKGET/LNKSET are load-link/store-conditional instructions. | |
160 | Choose this option if your system requires low latency. | |
161 | ||
162 | config METAG_ATOMICITY_LOCK1 | |
163 | depends on SMP | |
164 | bool "lock1" | |
165 | help | |
166 | This option uses the LOCK1 instruction for atomicity. This is mainly | |
167 | provided as a debugging aid if the lnkget/lnkset atomicity primitive | |
168 | isn't working properly. | |
169 | ||
170 | endchoice | |
171 | ||
172 | config METAG_FPU | |
173 | bool "FPU Support" | |
174 | depends on METAG_META21 | |
175 | default y | |
176 | help | |
177 | This option allows processes to use FPU hardware available with this | |
178 | CPU. If this option is not enabled FPU registers will not be saved | |
179 | and restored on context-switch. | |
180 | ||
181 | If you plan on running programs which are compiled to use hard floats | |
182 | say Y here. | |
183 | ||
184 | config METAG_DSP | |
185 | bool "DSP Support" | |
186 | help | |
187 | This option allows processes to use DSP hardware available | |
188 | with this CPU. If this option is not enabled DSP registers | |
189 | will not be saved and restored on context-switch. | |
190 | ||
191 | If you plan on running DSP programs say Y here. | |
192 | ||
193 | config METAG_PERFCOUNTER_IRQS | |
194 | bool "PerfCounters interrupt support" | |
195 | depends on METAG_META21 | |
196 | help | |
197 | This option enables using interrupts to collect information from | |
198 | Performance Counters. This option is supported in new META21 | |
199 | (starting from HTP265). | |
200 | ||
201 | When disabled, Performance Counters information will be collected | |
202 | based on Timer Interrupt. | |
203 | ||
00e6c923 JH |
204 | config HW_PERF_EVENTS |
205 | def_bool METAG_PERFCOUNTER_IRQS && PERF_EVENTS | |
206 | ||
ae85ac71 JH |
207 | config METAG_DA |
208 | bool "DA support" | |
209 | help | |
210 | Say Y if you plan to use a DA debug adapter with Linux. The presence | |
211 | of the DA will be detected automatically at boot, so it is safe to say | |
212 | Y to this option even when booting without a DA. | |
213 | ||
214 | This enables support for services provided by DA JTAG debug adapters, | |
215 | such as: | |
216 | - communication over DA channels (such as the console driver). | |
217 | - use of the DA filesystem. | |
218 | ||
5633004c JH |
219 | menu "Boot options" |
220 | ||
221 | config METAG_BUILTIN_DTB | |
222 | bool "Embed DTB in kernel image" | |
223 | default y | |
224 | help | |
225 | Embeds a device tree binary in the kernel image. | |
226 | ||
227 | config METAG_BUILTIN_DTB_NAME | |
228 | string "Built in DTB" | |
229 | depends on METAG_BUILTIN_DTB | |
230 | help | |
231 | Set the name of the DTB to embed (leave blank to pick one | |
232 | automatically based on kernel configuration). | |
233 | ||
234 | config CMDLINE_BOOL | |
235 | bool "Default bootloader kernel arguments" | |
236 | ||
237 | config CMDLINE | |
238 | string "Kernel command line" | |
239 | depends on CMDLINE_BOOL | |
240 | help | |
241 | On some architectures there is currently no way for the boot loader | |
242 | to pass arguments to the kernel. For these architectures, you should | |
243 | supply some command-line options at build time by entering them | |
244 | here. | |
245 | ||
246 | config CMDLINE_FORCE | |
247 | bool "Force default kernel command string" | |
248 | depends on CMDLINE_BOOL | |
249 | help | |
250 | Set this to have arguments from the default kernel command string | |
251 | override those passed by the boot loader. | |
252 | ||
253 | endmenu | |
254 | ||
255 | source "kernel/Kconfig.preempt" | |
256 | ||
257 | source kernel/Kconfig.hz | |
258 | ||
259 | endmenu | |
260 | ||
261 | menu "Power management options" | |
262 | ||
263 | source kernel/power/Kconfig | |
264 | ||
265 | endmenu | |
266 | ||
267 | menu "Executable file formats" | |
268 | ||
269 | source "fs/Kconfig.binfmt" | |
270 | ||
271 | endmenu | |
272 | ||
273 | source "net/Kconfig" | |
274 | ||
275 | source "drivers/Kconfig" | |
276 | ||
277 | source "fs/Kconfig" | |
278 | ||
279 | source "arch/metag/Kconfig.debug" | |
280 | ||
281 | source "security/Kconfig" | |
282 | ||
283 | source "crypto/Kconfig" | |
284 | ||
285 | source "lib/Kconfig" |