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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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8bdbd962ec
No code changes except printk levels (although some of the K6 mtrr code might be clearer if there were a few as would splitting out some of the intel cache code). Signed-off-by: Alan Cox <alan@linux.intel.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
34 lines
788 B
C
34 lines
788 B
C
/*
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* Copyright (C) 1994 Linus Torvalds
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* Copyright (C) 2000 SuSE
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/alternative.h>
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#include <asm/bugs.h>
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#include <asm/processor.h>
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#include <asm/mtrr.h>
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#include <asm/cacheflush.h>
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void __init check_bugs(void)
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{
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identify_boot_cpu();
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#if !defined(CONFIG_SMP)
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printk(KERN_INFO "CPU: ");
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print_cpu_info(&boot_cpu_data);
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#endif
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alternative_instructions();
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/*
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* Make sure the first 2MB area is not mapped by huge pages
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* There are typically fixed size MTRRs in there and overlapping
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* MTRRs into large pages causes slow downs.
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*
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* Right now we don't do that with gbpages because there seems
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* very little benefit for that case.
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*/
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if (!direct_gbpages)
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set_memory_4k((unsigned long)__va(0), 1);
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}
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