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* Added some cpuid eax == 1 feature definitions to arch_cpu.h

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* Renamed IA32_MTR_WRITE_COMBINED to IA32_MTR_WRITE_COMBINING.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15559 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-12-16 12:25:49 +00:00
parent 348c7214f5
commit 7d7f4675bb
4 changed files with 9 additions and 6 deletions
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headers/private/kernel/arch/x86/arch_cpu.h
+6 -1
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@@ -21,12 +21,17 @@
#define IA32_MSR_MTRR_PHYSICAL_BASE_0 0x200
#define IA32_MSR_MTRR_PHYSICAL_MASK_0 0x201
// cpuid eax 1 features
#define IA32_FEATURE_MTRR (1UL << 12)
#define IA32_FEATURE_GLOBAL_PAGES (1UL << 13)
// cr4 flags
#define IA32_CR4_GLOBAL_PAGES (1UL << 7)
// Memory type ranges
#define IA32_MTR_UNCACHED 0
#define IA32_MTR_WRITE_COMBINED 1
#define IA32_MTR_WRITE_COMBINING 1
#define IA32_MTR_WRITE_THROUGH 4
#define IA32_MTR_WRITE_PROTECTED 5
#define IA32_MTR_WRITE_BACK 6