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Simplify AMD64_CPU_MODEL() and AMD64_CPU_FAMILY() macros as the base family

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should be at least 0xf00 for all supported platforms.
This commit is contained in:
Jung-uk Kim 2008-10-22 17:36:52 +00:00
parent 0c0c75a824
commit e39dddd413
1 changed files with 2 additions and 4 deletions
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6
sys/amd64/include/specialreg.h
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@ -162,12 +162,10 @@
#define CPUID_EXT_FAMILY 0x0ff00000
#define AMD64_CPU_MODEL(id) \
((((id) & CPUID_MODEL) >> 4) | \
((((id) & CPUID_FAMILY) >= 0x600) ? \
(((id) & CPUID_EXT_MODEL) >> 12) : 0))
(((id) & CPUID_EXT_MODEL) >> 12))
#define AMD64_CPU_FAMILY(id) \
((((id) & CPUID_FAMILY) >> 8) + \
((((id) & CPUID_FAMILY) == 0xf00) ? \
(((id) & CPUID_EXT_FAMILY) >> 20) : 0))
(((id) & CPUID_EXT_FAMILY) >> 20))
/*
* CPUID instruction 1 ebx info