perf intel-pt: Use the perf provided "cpuid.h"

Rather than having a feature test and include of <cpuid.h> for the
__get_cpuid function, use the cpuid function provided by
tools/perf/arch/x86/util/cpuid.h.

Signed-off-by: Ian Rogers <[e-mail]>
Reviewed-by: James Clark <[e-mail]>
Signed-off-by: Namhyung Kim <[e-mail]>

tools/perf/arch/x86/tests/intel-pt-test.c

···
 #include <linux/compiler.h>
 #include <linux/bits.h>
 #include <string.h>
-#include <cpuid.h>
 #include <sched.h>
 
 #include "intel-pt-decoder/intel-pt-pkt-decoder.h"
···
 #include "debug.h"
 #include "tests/tests.h"
 #include "arch-tests.h"
+#include "../util/cpuid.h"
 #include "cpumap.h"
 
 /**
···
 	memset(caps, 0, sizeof(*caps));
 
 	for (i = 0; i < INTEL_PT_SUBLEAF_CNT; i++) {
-		__get_cpuid_count(20, i, &r.eax, &r.ebx, &r.ecx, &r.edx);
+		cpuid(20, i, &r.eax, &r.ebx, &r.ecx, &r.edx);
 		pr_debug("CPU %d CPUID leaf 20 subleaf %d\n", cpu, i);
 		pr_debug("eax = 0x%08x\n", r.eax);
 		pr_debug("ebx = 0x%08x\n", r.ebx);
···
 	unsigned int eax, ebx, ecx, edx = 0;
 	bool result;
 
-	__get_cpuid_count(7, 0, &eax, &ebx, &ecx, &edx);
+	cpuid(7, 0, &eax, &ebx, &ecx, &edx);
 	result = edx & BIT(15);
 	pr_debug("Is %shybrid : CPUID leaf 7 subleaf 0 edx %#x (bit-15 indicates hybrid)\n",
 		 result ? "" : "not ", edx);

tools/perf/arch/x86/util/intel-pt.c

···
 #include <linux/log2.h>
 #include <linux/zalloc.h>
 #include <linux/err.h>
-#include <cpuid.h>
 
 #include "../../../util/session.h"
 #include "../../../util/event.h"
···
 #include <internal/lib.h> // page_size
 #include "../../../util/intel-pt.h"
 #include <api/fs/fs.h>
+#include "cpuid.h"
 
 #define KiB(x) ((x) * 1024)
 #define MiB(x) ((x) * 1024 * 1024)
···
 {
 	unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0;
 
-	__get_cpuid(0x15, &eax, &ebx, &ecx, &edx);
+	cpuid(0x15, 0, &eax, &ebx, &ecx, &edx);
 	*n = ebx;
 	*d = eax;
 }