x86/cpu: Move TSC CPUID leaf definition

Prepare to use the TSC CPUID leaf definition more widely by moving
it to the common header.

Signed-off-by: Dave Hansen <[email protected]>
Reviewed-by: Zhao Liu <[email protected]>
Link: https://lore.kernel.org/all/20241213205033.68799E53%40davehans-spike.ostc.intel.com

Author: hansendc

arch/x86/events/intel/pt.c

@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/device.h>
 
+#include <asm/cpuid.h>
 #include <asm/perf_event.h>
 #include <asm/insn.h>
 #include <asm/io.h>

arch/x86/events/intel/pt.h

@@ -37,9 +37,6 @@ struct topa_entry {
 	u64	rsvd4	: 12;
 };
 
-/* TSC to Core Crystal Clock Ratio */
-#define CPUID_TSC_LEAF		0x15
-
 struct pt_pmu {
 	struct pmu		pmu;
 	u32			caps[PT_CPUID_REGS_NUM * PT_CPUID_LEAVES];

arch/x86/include/asm/cpuid.h

@@ -23,6 +23,7 @@ enum cpuid_regs_idx {
 
 #define CPUID_MWAIT_LEAF	0x5
 #define CPUID_DCA_LEAF		0x9
+#define CPUID_TSC_LEAF		0x15
 
 #ifdef CONFIG_X86_32
 bool have_cpuid_p(void);