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authorRadim Krčmář <rkrcmar@redhat.com>2017-01-17 17:53:01 +0100
committerRadim Krčmář <rkrcmar@redhat.com>2017-01-17 17:53:01 +0100
commita9ff720e0fee2f64c279e71c1bf86e93804295d2 (patch)
treec9d6a77274bcb90142aace2dd4a1c9808a191533 /arch/x86/include/asm/processor.h
parent21e7fbe7db2a983c046a05f12419d88c554a0f5a (diff)
parent06b35d93af0a5904aa832f58733be84ddbfe2e04 (diff)
downloadtalos-op-linux-a9ff720e0fee2f64c279e71c1bf86e93804295d2.tar.gz
talos-op-linux-a9ff720e0fee2f64c279e71c1bf86e93804295d2.zip
Merge branch 'x86/cpufeature' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
For AVX512_VPOPCNTDQ.
Diffstat (limited to 'arch/x86/include/asm/processor.h')
-rw-r--r--arch/x86/include/asm/processor.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index eaf100508c36..1be64da0384e 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -219,6 +219,24 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
: "memory");
}
+#define native_cpuid_reg(reg) \
+static inline unsigned int native_cpuid_##reg(unsigned int op) \
+{ \
+ unsigned int eax = op, ebx, ecx = 0, edx; \
+ \
+ native_cpuid(&eax, &ebx, &ecx, &edx); \
+ \
+ return reg; \
+}
+
+/*
+ * Native CPUID functions returning a single datum.
+ */
+native_cpuid_reg(eax)
+native_cpuid_reg(ebx)
+native_cpuid_reg(ecx)
+native_cpuid_reg(edx)
+
static inline void load_cr3(pgd_t *pgdir)
{
write_cr3(__pa(pgdir));
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