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/* by yhlu 6.2005 */
/* be warned, this file will be used core 0/node 0 only */
__asm__ volatile (
/* disable cache */
"movl %cr0, %eax\n\t"
"orl $(0x1<<30),%eax\n\t"
"movl %eax, %cr0\n\t"
/* enable caching for first 1M using variable mtrr */
"movl $0x200, %ecx\n\t"
"xorl %edx, %edx\n\t"
"movl $(0 | 1), %eax\n\t"
// "movl $(0 | MTRR_TYPE_WRCOMB), %eax\n\t"
"wrmsr\n\t"
"movl $0x201, %ecx\n\t"
"movl $0x0000000f, %edx\n\t"
"movl $((~(( 0 + 0x100000) - 1)) | 0x800), %eax\n\t"
"wrmsr\n\t"
/* clear the first 1M */
"movl $0x0, %edi\n\t"
"cld\n\t"
"movl $(0x100000>>2), %ecx\n\t"
"xorl %eax, %eax\n\t"
"rep stosl\n\t"
/* disable cache */
"movl %cr0, %eax\n\t"
"orl $(0x1<<30),%eax\n\t"
"movl %eax, %cr0\n\t"
/* enable caching for first 1M using variable mtrr */
"movl $0x200, %ecx\n\t"
"xorl %edx, %edx\n\t"
"movl $(0 | 6), %eax\n\t"
// "movl $(0 | MTRR_TYPE_WRBACK), %eax\n\t"
"wrmsr\n\t"
"movl $0x201, %ecx\n\t"
"movl $0x0000000f, %edx\n\t"
"movl $((~(( 0 + 0x100000) - 1)) | 0x800), %eax\n\t"
"wrmsr\n\t"
/* enable cache */
"movl %cr0, %eax\n\t"
"andl $0x9fffffff,%eax\n\t"
"movl %eax, %cr0\n\t"
"invd\n\t"
);
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