diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/amd/car/clear_1m_ram.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/cpu/amd/car/clear_1m_ram.c b/src/cpu/amd/car/clear_1m_ram.c deleted file mode 100644 index c61610ff64..0000000000 --- a/src/cpu/amd/car/clear_1m_ram.c +++ /dev/null @@ -1,111 +0,0 @@ -/* by yhlu 6.2005 */ -/* be warned, this file will be used core 0/node 0 only */ -static inline __attribute__((always_inline)) void clear_1m_ram(void) -{ - __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" -#if CONFIG_USE_INIT - "movl %%esi, %%eax\n\t" -#else - "movl $((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800), %%eax\n\t" -#endif - "wrmsr\n\t" - - /* clear the first 1M */ -#if CONFIG_USE_INIT - "movl %%edi, %%ecx\n\t" -#else - "movl $((CONFIG_LB_MEM_TOPK<<10)>>2), %%ecx\n\t" -#endif - "xorl %%edi, %%edi\n\t" - "cld\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" -#if CONFIG_USE_INIT - "movl %%esi, %%eax\n\t" -#else - "movl $((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800), %%eax\n\t" -#endif - "wrmsr\n\t" - - /* enable cache */ - "movl %%cr0, %%eax\n\t" - "andl $0x9fffffff,%%eax\n\t" - "movl %%eax, %%cr0\n\t" - "invd\n\t" - : - : -#if CONFIG_USE_INIT - "S"((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800), "D" ((CONFIG_LB_MEM_TOPK<<10)>>2) -#endif - ); -} - -/* be warned, this file will be used by core other than core 0/node 0 or core0/node0 when cpu_reset*/ -static inline __attribute__((always_inline)) void set_1m_ram(void) -{ - __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 | 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" -#if CONFIG_USE_INIT - "movl %%esi, %%eax\n\t" -#else - "movl $((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800), %%eax\n\t" -#endif - "wrmsr\n\t" - - /* enable cache */ - "movl %%cr0, %%eax\n\t" - "andl $0x9fffffff,%%eax\n\t" - "movl %%eax, %%cr0\n\t" -// "invd\n\t" // Is the BSP done with mem init? - : - : -#if CONFIG_USE_INIT - "S"((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800) -#endif - ); -} - |