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x86, asm, cleanup: Replace open-coded control register values with symbolic

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Clean up an unnecessary open-coded control register values.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-um7za1nzf6brb17o0h4om6e3@git.kernel.org
This commit is contained in:
H. Peter Anvin 2013-04-27 16:22:32 -07:00
parent d1fbefcb3a
commit a3d7b7dddc
3 changed files with 3 additions and 3 deletions
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2
arch/x86/kernel/cpu/mtrr/cyrix.c
View File

@ -167,7 +167,7 @@ static void post_set(void)
setCx86(CX86_CCR3, ccr3);
/* Enable caches */
write_cr0(read_cr0() & 0xbfffffff);
write_cr0(read_cr0() & ~X86_CR0_CD);
/* Restore value of CR4 */
if (cpu_has_pge)

2
arch/x86/kernel/cpu/mtrr/generic.c
View File

@ -701,7 +701,7 @@ static void post_set(void) __releases(set_atomicity_lock)
mtrr_wrmsr(MSR_MTRRdefType, deftype_lo, deftype_hi);
/* Enable caches */
write_cr0(read_cr0() & 0xbfffffff);
write_cr0(read_cr0() & ~X86_CR0_CD);
/* Restore value of CR4 */
if (cpu_has_pge)

2
arch/x86/kernel/relocate_kernel_32.S
View File

@ -186,7 +186,7 @@ identity_mapped:
movl CP_PA_PGD(%ebx), %eax
movl %eax, %cr3
movl %cr0, %eax
orl $(1<<31), %eax
orl $X86_CR0_PG, %eax
movl %eax, %cr0
lea PAGE_SIZE(%edi), %esp
movl %edi, %eax