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-rw-r--r--arch/i386/Kconfig58
1 files changed, 29 insertions, 29 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index cbc6be62f6e3..57301db056f5 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -53,6 +53,35 @@ source "init/Kconfig"
53 53
54menu "Processor type and features" 54menu "Processor type and features"
55 55
56config SMP
57 bool "Symmetric multi-processing support"
58 ---help---
59 This enables support for systems with more than one CPU. If you have
60 a system with only one CPU, like most personal computers, say N. If
61 you have a system with more than one CPU, say Y.
62
63 If you say N here, the kernel will run on single and multiprocessor
64 machines, but will use only one CPU of a multiprocessor machine. If
65 you say Y here, the kernel will run on many, but not all,
66 singleprocessor machines. On a singleprocessor machine, the kernel
67 will run faster if you say N here.
68
69 Note that if you say Y here and choose architecture "586" or
70 "Pentium" under "Processor family", the kernel will not work on 486
71 architectures. Similarly, multiprocessor kernels for the "PPro"
72 architecture may not work on all Pentium based boards.
73
74 People using multiprocessor machines who say Y here should also say
75 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
76 Management" code will be disabled if you say Y here.
77
78 See also the <file:Documentation/smp.txt>,
79 <file:Documentation/i386/IO-APIC.txt>,
80 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
81 <http://www.tldp.org/docs.html#howto>.
82
83 If you don't know what to do here, say N.
84
56choice 85choice
57 prompt "Subarchitecture Type" 86 prompt "Subarchitecture Type"
58 default X86_PC 87 default X86_PC
@@ -178,35 +207,6 @@ config HPET_EMULATE_RTC
178 depends on HPET_TIMER && RTC=y 207 depends on HPET_TIMER && RTC=y
179 default y 208 default y
180 209
181config SMP
182 bool "Symmetric multi-processing support"
183 ---help---
184 This enables support for systems with more than one CPU. If you have
185 a system with only one CPU, like most personal computers, say N. If
186 you have a system with more than one CPU, say Y.
187
188 If you say N here, the kernel will run on single and multiprocessor
189 machines, but will use only one CPU of a multiprocessor machine. If
190 you say Y here, the kernel will run on many, but not all,
191 singleprocessor machines. On a singleprocessor machine, the kernel
192 will run faster if you say N here.
193
194 Note that if you say Y here and choose architecture "586" or
195 "Pentium" under "Processor family", the kernel will not work on 486
196 architectures. Similarly, multiprocessor kernels for the "PPro"
197 architecture may not work on all Pentium based boards.
198
199 People using multiprocessor machines who say Y here should also say
200 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
201 Management" code will be disabled if you say Y here.
202
203 See also the <file:Documentation/smp.txt>,
204 <file:Documentation/i386/IO-APIC.txt>,
205 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
206 <http://www.tldp.org/docs.html#howto>.
207
208 If you don't know what to do here, say N.
209
210config NR_CPUS 210config NR_CPUS
211 int "Maximum number of CPUs (2-255)" 211 int "Maximum number of CPUs (2-255)"
212 range 2 255 212 range 2 255