mirror of https://gitee.com/openkylin/linux.git
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
#ifndef _ASM_REQUIRED_FEATURES_H
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#define _ASM_REQUIRED_FEATURES_H 1
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/* Define minimum CPUID feature set for kernel These bits are checked
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really early to actually display a visible error message before the
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kernel dies. Make sure to assign features to the proper mask!
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The real information is in arch/x86_64/Kconfig.cpu, this just converts
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the CONFIGs into a bitmask */
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/* x86-64 baseline features */
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#define NEED_FPU (1<<(X86_FEATURE_FPU & 31))
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#define NEED_PSE (1<<(X86_FEATURE_PSE & 31))
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#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
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#define NEED_PAE (1<<(X86_FEATURE_PAE & 31))
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#define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31))
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#define NEED_PGE (1<<(X86_FEATURE_PGE & 31))
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#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31))
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#define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31))
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#define NEED_XMM (1<<(X86_FEATURE_XMM & 31))
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#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31))
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#define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\
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NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\
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NEED_XMM|NEED_XMM2)
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#define SSE_MASK (NEED_XMM|NEED_XMM2)
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/* x86-64 baseline features */
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#define NEED_LM (1<<(X86_FEATURE_LM & 31))
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#ifdef CONFIG_X86_USE_3DNOW
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# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31))
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#else
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# define NEED_3DNOW 0
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#endif
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#define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW)
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#define REQUIRED_MASK2 0
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#define REQUIRED_MASK3 0
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#define REQUIRED_MASK4 0
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#define REQUIRED_MASK5 0
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#define REQUIRED_MASK6 0
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#define REQUIRED_MASK7 0
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#endif
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