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1da177e4 LT |
1 | # $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $ |
2 | # For a description of the syntax of this configuration file, | |
3 | # see the Configure script. | |
4 | # | |
5 | ||
6 | mainmenu "Linux/UltraSPARC Kernel Configuration" | |
7 | ||
0b57ee9e AB |
8 | config SPARC |
9 | bool | |
10 | default y | |
42d4b839 | 11 | select HAVE_OPROFILE |
3f550096 | 12 | select HAVE_KPROBES |
0b57ee9e | 13 | |
5843e37e DM |
14 | config SPARC64 |
15 | bool | |
16 | default y | |
ec7748b5 | 17 | select HAVE_IDE |
5843e37e DM |
18 | help |
19 | SPARC is a family of RISC microprocessors designed and marketed by | |
20 | Sun Microsystems, incorporated. This port covers the newer 64-bit | |
21 | UltraSPARC. The UltraLinux project maintains both the SPARC32 and | |
22 | SPARC64 ports; its web page is available at | |
23 | <http://www.ultralinux.org/>. | |
24 | ||
112f4871 DM |
25 | config GENERIC_TIME |
26 | bool | |
27 | default y | |
28 | ||
82644459 TG |
29 | config GENERIC_CMOS_UPDATE |
30 | bool | |
31 | default y | |
32 | ||
112f4871 DM |
33 | config GENERIC_CLOCKEVENTS |
34 | bool | |
35 | default y | |
36 | ||
1da177e4 LT |
37 | config 64BIT |
38 | def_bool y | |
39 | ||
40 | config MMU | |
41 | bool | |
42 | default y | |
43 | ||
d284142c DM |
44 | config IOMMU_HELPER |
45 | bool | |
46 | default y | |
47 | ||
3a2cba99 DM |
48 | config QUICKLIST |
49 | bool | |
50 | default y | |
51 | ||
10e26723 DM |
52 | config STACKTRACE_SUPPORT |
53 | bool | |
54 | default y | |
55 | ||
56 | config LOCKDEP_SUPPORT | |
57 | bool | |
58 | default y | |
59 | ||
a08b6b79 AV |
60 | config ARCH_MAY_HAVE_PC_FDC |
61 | bool | |
62 | default y | |
63 | ||
f0d1b0b3 DH |
64 | config ARCH_HAS_ILOG2_U32 |
65 | bool | |
66 | default n | |
67 | ||
68 | config ARCH_HAS_ILOG2_U64 | |
69 | bool | |
70 | default n | |
71 | ||
f6bc0c1c AV |
72 | config AUDIT_ARCH |
73 | bool | |
74 | default y | |
75 | ||
988c388a | 76 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 77 | def_bool y |
78 | ||
0785b9dc SR |
79 | config ARCH_NO_VIRT_TO_BUS |
80 | def_bool y | |
81 | ||
97e873e5 SR |
82 | config OF |
83 | def_bool y | |
84 | ||
8d57d3ad DM |
85 | config GENERIC_HARDIRQS_NO__DO_IRQ |
86 | bool | |
87 | def_bool y | |
88 | ||
b0b933c0 DH |
89 | config ARCH_SUPPORTS_AOUT |
90 | def_bool y | |
91 | ||
1da177e4 LT |
92 | choice |
93 | prompt "Kernel page size" | |
94 | default SPARC64_PAGE_SIZE_8KB | |
95 | ||
96 | config SPARC64_PAGE_SIZE_8KB | |
97 | bool "8KB" | |
98 | help | |
99 | This lets you select the page size of the kernel. | |
100 | ||
101 | 8KB and 64KB work quite well, since Sparc ELF sections | |
102 | provide for up to 64KB alignment. | |
103 | ||
104 | Therefore, 512KB and 4MB are for expert hackers only. | |
105 | ||
106 | If you don't know what to do, choose 8KB. | |
107 | ||
108 | config SPARC64_PAGE_SIZE_64KB | |
109 | bool "64KB" | |
110 | ||
111 | config SPARC64_PAGE_SIZE_512KB | |
112 | bool "512KB" | |
113 | ||
114 | config SPARC64_PAGE_SIZE_4MB | |
115 | bool "4MB" | |
116 | ||
117 | endchoice | |
118 | ||
bb49bcda DM |
119 | config SECCOMP |
120 | bool "Enable seccomp to safely compute untrusted bytecode" | |
121 | depends on PROC_FS | |
122 | default y | |
123 | help | |
124 | This kernel feature is useful for number crunching applications | |
125 | that may need to compute untrusted bytecode during their | |
126 | execution. By using pipes or other transports made available to | |
127 | the process as file descriptors supporting the read/write | |
128 | syscalls, it's possible to isolate those applications in | |
129 | their own address space using seccomp. Once seccomp is | |
130 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
131 | and the task is only allowed to execute a few safe syscalls | |
132 | defined by each seccomp mode. | |
133 | ||
134 | If unsure, say Y. Only embedded should say N here. | |
135 | ||
a6524813 DM |
136 | source kernel/Kconfig.hz |
137 | ||
4f0234f4 DM |
138 | config HOTPLUG_CPU |
139 | bool "Support for hot-pluggable CPUs" | |
140 | depends on SMP | |
141 | select HOTPLUG | |
142 | ---help--- | |
143 | Say Y here to experiment with turning CPUs off and on. CPUs | |
144 | can be controlled through /sys/devices/system/cpu/cpu#. | |
145 | Say N if you want to disable CPU hotplug. | |
146 | ||
1da177e4 LT |
147 | source "init/Kconfig" |
148 | ||
149 | config SYSVIPC_COMPAT | |
150 | bool | |
151 | depends on COMPAT && SYSVIPC | |
152 | default y | |
153 | ||
e18e2a00 DM |
154 | config GENERIC_HARDIRQS |
155 | bool | |
156 | default y | |
157 | ||
1da177e4 LT |
158 | menu "General machine setup" |
159 | ||
112f4871 DM |
160 | source "kernel/time/Kconfig" |
161 | ||
1da177e4 LT |
162 | config SMP |
163 | bool "Symmetric multi-processing support" | |
164 | ---help--- | |
165 | This enables support for systems with more than one CPU. If you have | |
166 | a system with only one CPU, say N. If you have a system with more than | |
167 | one CPU, say Y. | |
168 | ||
169 | If you say N here, the kernel will run on single and multiprocessor | |
170 | machines, but will use only one CPU of a multiprocessor machine. If | |
171 | you say Y here, the kernel will run on many, but not all, | |
172 | singleprocessor machines. On a singleprocessor machine, the kernel | |
173 | will run faster if you say N here. | |
174 | ||
175 | People using multiprocessor machines who say Y here should also say | |
176 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
177 | Management" code will be disabled if you say Y here. | |
178 | ||
03502faa AB |
179 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
180 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
181 | |
182 | If you don't know what to do here, say N. | |
183 | ||
1da177e4 | 184 | config NR_CPUS |
22adb358 DM |
185 | int "Maximum number of CPUs (2-1024)" |
186 | range 2 1024 | |
1da177e4 | 187 | depends on SMP |
22adb358 | 188 | default "64" |
1da177e4 LT |
189 | |
190 | source "drivers/cpufreq/Kconfig" | |
191 | ||
192 | config US3_FREQ | |
193 | tristate "UltraSPARC-III CPU Frequency driver" | |
194 | depends on CPU_FREQ | |
195 | select CPU_FREQ_TABLE | |
196 | help | |
197 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
198 | ||
199 | For details, take a look at <file:Documentation/cpu-freq>. | |
200 | ||
201 | If in doubt, say N. | |
202 | ||
203 | config US2E_FREQ | |
204 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
205 | depends on CPU_FREQ | |
206 | select CPU_FREQ_TABLE | |
207 | help | |
208 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
209 | ||
210 | For details, take a look at <file:Documentation/cpu-freq>. | |
211 | ||
212 | If in doubt, say N. | |
213 | ||
1da177e4 | 214 | # Global things across all Sun machines. |
95c354fe NP |
215 | config GENERIC_LOCKBREAK |
216 | bool | |
217 | default y | |
218 | depends on SMP && PREEMPT | |
219 | ||
1da177e4 LT |
220 | config RWSEM_GENERIC_SPINLOCK |
221 | bool | |
222 | ||
223 | config RWSEM_XCHGADD_ALGORITHM | |
224 | bool | |
225 | default y | |
226 | ||
2d78d4be AM |
227 | config GENERIC_FIND_NEXT_BIT |
228 | bool | |
229 | default y | |
230 | ||
231 | config GENERIC_HWEIGHT | |
232 | bool | |
233 | default y if !ULTRA_HAS_POPULATION_COUNT | |
234 | ||
1da177e4 LT |
235 | config GENERIC_CALIBRATE_DELAY |
236 | bool | |
237 | default y | |
238 | ||
239 | choice | |
240 | prompt "SPARC64 Huge TLB Page Size" | |
241 | depends on HUGETLB_PAGE | |
242 | default HUGETLB_PAGE_SIZE_4MB | |
243 | ||
244 | config HUGETLB_PAGE_SIZE_4MB | |
245 | bool "4MB" | |
246 | ||
247 | config HUGETLB_PAGE_SIZE_512K | |
dcc1e8dd | 248 | depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB |
1da177e4 LT |
249 | bool "512K" |
250 | ||
251 | config HUGETLB_PAGE_SIZE_64K | |