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-rw-r--r--arch/i386/kernel/cpu/common.c37
-rw-r--r--include/asm-i386/processor.h3
-rw-r--r--include/linux/start_kernel.h12
-rw-r--r--init/main.c1
4 files changed, 37 insertions, 16 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index cda41aef79ad..68bcb687019a 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -236,29 +236,14 @@ static int __cpuinit have_cpuid_p(void)
236 return flag_is_changeable_p(X86_EFLAGS_ID); 236 return flag_is_changeable_p(X86_EFLAGS_ID);
237} 237}
238 238
239/* Do minimum CPU detection early. 239void __init cpu_detect(struct cpuinfo_x86 *c)
240 Fields really needed: vendor, cpuid_level, family, model, mask, cache alignment.
241 The others are not touched to avoid unwanted side effects.
242
243 WARNING: this function is only called on the BP. Don't add code here
244 that is supposed to run on all CPUs. */
245static void __init early_cpu_detect(void)
246{ 240{
247 struct cpuinfo_x86 *c = &boot_cpu_data;
248
249 c->x86_cache_alignment = 32;
250
251 if (!have_cpuid_p())
252 return;
253
254 /* Get vendor name */ 241 /* Get vendor name */
255 cpuid(0x00000000, &c->cpuid_level, 242 cpuid(0x00000000, &c->cpuid_level,
256 (int *)&c->x86_vendor_id[0], 243 (int *)&c->x86_vendor_id[0],
257 (int *)&c->x86_vendor_id[8], 244 (int *)&c->x86_vendor_id[8],
258 (int *)&c->x86_vendor_id[4]); 245 (int *)&c->x86_vendor_id[4]);
259 246
260 get_cpu_vendor(c, 1);
261
262 c->x86 = 4; 247 c->x86 = 4;
263 if (c->cpuid_level >= 0x00000001) { 248 if (c->cpuid_level >= 0x00000001) {
264 u32 junk, tfms, cap0, misc; 249 u32 junk, tfms, cap0, misc;
@@ -275,6 +260,26 @@ static void __init early_cpu_detect(void)
275 } 260 }
276} 261}
277 262
263/* Do minimum CPU detection early.
264 Fields really needed: vendor, cpuid_level, family, model, mask, cache alignment.
265 The others are not touched to avoid unwanted side effects.
266
267 WARNING: this function is only called on the BP. Don't add code here
268 that is supposed to run on all CPUs. */
269static void __init early_cpu_detect(void)
270{
271 struct cpuinfo_x86 *c = &boot_cpu_data;
272
273 c->x86_cache_alignment = 32;
274
275 if (!have_cpuid_p())
276 return;
277
278 cpu_detect(c);
279
280 get_cpu_vendor(c, 1);
281}
282
278static void __cpuinit generic_identify(struct cpuinfo_x86 * c) 283static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
279{ 284{
280 u32 tfms, xlvl; 285 u32 tfms, xlvl;
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index 5f0418d0078c..a52d65440429 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -20,6 +20,7 @@
20#include <linux/threads.h> 20#include <linux/threads.h>
21#include <asm/percpu.h> 21#include <asm/percpu.h>
22#include <linux/cpumask.h> 22#include <linux/cpumask.h>
23#include <linux/init.h>
23 24
24/* flag for disabling the tsc */ 25/* flag for disabling the tsc */
25extern int tsc_disable; 26extern int tsc_disable;
@@ -112,6 +113,8 @@ extern struct cpuinfo_x86 cpu_data[];
112extern int cpu_llc_id[NR_CPUS]; 113extern int cpu_llc_id[NR_CPUS];
113extern char ignore_fpu_irq; 114extern char ignore_fpu_irq;
114 115
116void __init cpu_detect(struct cpuinfo_x86 *c);
117
115extern void identify_cpu(struct cpuinfo_x86 *); 118extern void identify_cpu(struct cpuinfo_x86 *);
116extern void print_cpu_info(struct cpuinfo_x86 *); 119extern void print_cpu_info(struct cpuinfo_x86 *);
117extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c); 120extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
diff --git a/include/linux/start_kernel.h b/include/linux/start_kernel.h
new file mode 100644
index 000000000000..d3e5f2756545
--- /dev/null
+++ b/include/linux/start_kernel.h
@@ -0,0 +1,12 @@
1#ifndef _LINUX_START_KERNEL_H
2#define _LINUX_START_KERNEL_H
3
4#include <linux/linkage.h>
5#include <linux/init.h>
6
7/* Define the prototype for start_kernel here, rather than cluttering
8 up something else. */
9
10extern asmlinkage void __init start_kernel(void);
11
12#endif /* _LINUX_START_KERNEL_H */
diff --git a/init/main.c b/init/main.c
index 36f608a7cfba..985c9ed86050 100644
--- a/init/main.c
+++ b/init/main.c
@@ -29,6 +29,7 @@
29#include <linux/percpu.h> 29#include <linux/percpu.h>
30#include <linux/kmod.h> 30#include <linux/kmod.h>
31#include <linux/kernel_stat.h> 31#include <linux/kernel_stat.h>
32#include <linux/start_kernel.h>
32#include <linux/security.h> 33#include <linux/security.h>
33#include <linux/workqueue.h> 34#include <linux/workqueue.h>
34#include <linux/profile.h> 35#include <linux/profile.h>