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