diff options
Diffstat (limited to 'arch/x86/lib/physmem.c')
| -rw-r--r-- | arch/x86/lib/physmem.c | 33 |
1 files changed, 3 insertions, 30 deletions
diff --git a/arch/x86/lib/physmem.c b/arch/x86/lib/physmem.c index b57b2c30fe..c3c709ec07 100644 --- a/arch/x86/lib/physmem.c +++ b/arch/x86/lib/physmem.c @@ -10,6 +10,7 @@ #include <common.h> #include <physmem.h> +#include <asm/cpu.h> #include <linux/compiler.h> DECLARE_GLOBAL_DATA_PTR; @@ -112,41 +113,13 @@ static void x86_phys_enter_paging(void) x86_phys_map_page(page_addr, page_addr, 0); } - /* Turn on paging */ - __asm__ __volatile__( - /* Load the page table address */ - "movl %0, %%cr3\n\t" - /* Enable pae */ - "movl %%cr4, %%eax\n\t" - "orl $0x00000020, %%eax\n\t" - "movl %%eax, %%cr4\n\t" - /* Enable paging */ - "movl %%cr0, %%eax\n\t" - "orl $0x80000000, %%eax\n\t" - "movl %%eax, %%cr0\n\t" - : - : "r" (pdpt) - : "eax" - ); + cpu_enable_paging_pae((ulong)pdpt); } /* Disable paging and PAE mode. */ static void x86_phys_exit_paging(void) { - /* Turn off paging */ - __asm__ __volatile__ ( - /* Disable paging */ - "movl %%cr0, %%eax\n\t" - "andl $0x7fffffff, %%eax\n\t" - "movl %%eax, %%cr0\n\t" - /* Disable pae */ - "movl %%cr4, %%eax\n\t" - "andl $0xffffffdf, %%eax\n\t" - "movl %%eax, %%cr4\n\t" - : - : - : "eax" - ); + cpu_disable_paging_pae(); } /* |