Add CPUID(0x16) support to the CPUID parser.  The leaf enumerates the
CPU's frequency information and is only supported on Intel machines.

This allows converting CPUID(0x16) call sites to the CPUID APIs next.

Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
---
 arch/x86/include/asm/cpuid/types.h | 1 +
 arch/x86/kernel/cpu/cpuid_parser.h | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/x86/include/asm/cpuid/types.h b/arch/x86/include/asm/cpuid/types.h
index 8be2c2ba874a..2939ad095f6c 100644
--- a/arch/x86/include/asm/cpuid/types.h
+++ b/arch/x86/include/asm/cpuid/types.h
@@ -206,6 +206,7 @@ struct cpuid_leaves {
 	/*		Leaf		Subleaf number (or max number of subleaves) */
 	CPUID_LEAF   (	0x0,		0  );
 	CPUID_LEAF   (	0x1,		0  );
+	CPUID_LEAF   (	0x16,		0  );
 	CPUID_LEAF   (  0x80000000,	0  );
 	CPUID_LEAF   (  0x80000002,	0  );
 	CPUID_LEAF   (  0x80000003,	0  );
diff --git a/arch/x86/kernel/cpu/cpuid_parser.h b/arch/x86/kernel/cpu/cpuid_parser.h
index 8b0d44b745c5..ee1958f3d369 100644
--- a/arch/x86/kernel/cpu/cpuid_parser.h
+++ b/arch/x86/kernel/cpu/cpuid_parser.h
@@ -144,6 +144,7 @@ struct cpuid_parse_entry {
  */
 #define CPUID_COMMON_ENTRIES									\
 	/*			Leaf		Subleaf		Reader function */		\
+	CPUID_PARSE_ENTRY   (	0x16,		0,		generic			),	\
 	CPUID_PARSE_ENTRY   (	0x80000000,	0,		0x80000000		),	\
 	CPUID_PARSE_ENTRY   (	0x80000002,	0,		generic			),	\
 	CPUID_PARSE_ENTRY   (	0x80000003,	0,		generic			),	\
@@ -180,5 +181,6 @@ struct cpuid_vendor_entry {
 
 #define CPUID_VENDOR_ENTRIES								\
 	/*		   Leaf		Vendor list		    */			\
+	CPUID_VENDOR_ENTRY(0x16,	X86_VENDOR_INTEL),				\
 
 #endif /* _ARCH_X86_CPUID_PARSER_H */
-- 
2.53.0