x86/cpu: Clean up various files a bit
[linux-2.6.git] / arch / x86 / kernel / cpu / bugs_64.c
1 /*
2  *  Copyright (C) 1994  Linus Torvalds
3  *  Copyright (C) 2000  SuSE
4  */
5
6 #include <linux/kernel.h>
7 #include <linux/init.h>
8 #include <asm/alternative.h>
9 #include <asm/bugs.h>
10 #include <asm/processor.h>
11 #include <asm/mtrr.h>
12 #include <asm/cacheflush.h>
13
14 void __init check_bugs(void)
15 {
16         identify_boot_cpu();
17 #if !defined(CONFIG_SMP)
18         printk(KERN_INFO "CPU: ");
19         print_cpu_info(&boot_cpu_data);
20 #endif
21         alternative_instructions();
22
23         /*
24          * Make sure the first 2MB area is not mapped by huge pages
25          * There are typically fixed size MTRRs in there and overlapping
26          * MTRRs into large pages causes slow downs.
27          *
28          * Right now we don't do that with gbpages because there seems
29          * very little benefit for that case.
30          */
31         if (!direct_gbpages)
32                 set_memory_4k((unsigned long)__va(0), 1);
33 }