x86/cpu: Enable MOVDIRI cpu feature
MOVDIRI moves doubleword or quadword from register to memory through direct store which is implemented by using write combining (WC) for writing data directly into memory without caching the data. The bit definition: CPUID.(EAX=7,ECX=0):ECX[bit 27] MOVDIRI The release document ref below link: https://software.intel.com/sites/default/files/managed/c5/15/\ architecture-instruction-set-extensions-programming-reference.pdf Cc: Xu Tao <tao3.xu@intel.com> Signed-off-by: Liu Jingqi <jingqi.liu@intel.com> Message-Id: <1541488407-17045-2-git-send-email-jingqi.liu@intel.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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@ -1023,7 +1023,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
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"avx512bitalg", NULL, "avx512-vpopcntdq", NULL,
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"la57", NULL, NULL, NULL,
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NULL, NULL, "rdpid", NULL,
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NULL, "cldemote", NULL, NULL,
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NULL, "cldemote", NULL, "movdiri",
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NULL, NULL, NULL, NULL,
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},
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.cpuid = {
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@ -687,6 +687,7 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
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#define CPUID_7_0_ECX_LA57 (1U << 16)
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#define CPUID_7_0_ECX_RDPID (1U << 22)
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#define CPUID_7_0_ECX_CLDEMOTE (1U << 25) /* CLDEMOTE Instruction */
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#define CPUID_7_0_ECX_MOVDIRI (1U << 27) /* MOVDIRI Instruction */
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#define CPUID_7_0_EDX_AVX512_4VNNIW (1U << 2) /* AVX512 Neural Network Instructions */
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#define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3) /* AVX512 Multiply Accumulation Single Precision */
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