2 /* be warned, this file will be used other cores and core 0 / node 0 */
3 static inline __attribute__((always_inline)) void disable_cache_as_ram(void)
7 FIXME : backup stack in CACHE_AS_RAM into mmx and sse and after we get STACK up, we restore that.
8 It is only needed if we want to go back
10 /* We don't need cache as ram for now on */
13 "orl $(0x1<<30),%eax\n\t"
17 "movl $0x269, %ecx\n\t" /* fix4k_c8000*/
21 #if DCACHE_RAM_SIZE > 0x8000
22 "movl $0x268, %ecx\n\t" /* fix4k_c0000*/
26 /* disable fixed mtrr from now on, it will be enabled by linuxbios_ram again*/
27 "movl $0xC0010010, %ecx\n\t"
28 // "movl $SYSCFG_MSR, %ecx\n\t"
30 "andl $(~(3<<18)), %eax\n\t"
31 // "andl $(~(SYSCFG_MSR_MtrrFixDramModEn | SYSCFG_MSR_MtrrFixDramEn)), %eax\n\t"
34 /* Set the default memory type and disable fixed and enable variable MTRRs */
35 "movl $0x2ff, %ecx\n\t"
36 // "movl $MTRRdefType_MSR, %ecx\n\t"
38 /* Enable Variable and Disable Fixed MTRRs */
39 "movl $0x00000800, %eax\n\t"
44 "andl $0x9fffffff,%eax\n\t"