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From: Ian Rogers <irogers@google.com>
To: "Peter Zijlstra" <peterz@infradead.org>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Arnaldo Carvalho de Melo" <acme@kernel.org>,
	"Namhyung Kim" <namhyung@kernel.org>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Jiri Olsa" <jolsa@kernel.org>, "Ian Rogers" <irogers@google.com>,
	"Adrian Hunter" <adrian.hunter@intel.com>,
	"John Garry" <john.g.garry@oracle.com>,
	"Will Deacon" <will@kernel.org>,
	"James Clark" <james.clark@linaro.org>,
	"Mike Leach" <mike.leach@linaro.org>,
	"Leo Yan" <leo.yan@linux.dev>,
	"Suzuki K Poulose" <suzuki.poulose@arm.com>,
	"Yicong Yang" <yangyicong@hisilicon.com>,
	"Jonathan Cameron" <jonathan.cameron@huawei.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Darren Hart" <dvhart@infradead.org>,
	"Davidlohr Bueso" <dave@stgolabs.net>,
	"André Almeida" <andrealmeid@igalia.com>,
	"Tomas Glozar" <tglozar@redhat.com>,
	"Quentin Monnet" <qmo@kernel.org>,
	"Yuzhuo Jing" <yuzhuo@google.com>,
	"Blake Jones" <blakejones@google.com>,
	"Charlie Jenkins" <charlie@rivosinc.com>,
	"Yeoreum Yun" <yeoreum.yun@arm.com>,
	"Athira Rajeev" <atrajeev@linux.ibm.com>,
	"Ravi Bangoria" <ravi.bangoria@amd.com>,
	"Collin Funk" <collin.funk1@gmail.com>,
	"Dapeng Mi" <dapeng1.mi@linux.intel.com>,
	"Thomas Richter" <tmricht@linux.ibm.com>,
	"Dmitry Vyukov" <dvyukov@google.com>,
	"Andi Kleen" <ak@linux.intel.com>,
	"Howard Chu" <howardchu95@gmail.com>,
	"Zecheng Li" <zecheng@google.com>, tanze <tanze@kylinos.cn>,
	"Gabriele Monaco" <gmonaco@redhat.com>,
	"GuoHan Zhao" <zhaoguohan@kylinos.cn>,
	"Markus Elfring" <Markus.Elfring@web.de>,
	"Colin Ian King" <colin.i.king@gmail.com>,
	"Kan Liang" <kan.liang@linux.intel.com>,
	"Dr. David Alan Gilbert" <linux@treblig.org>,
	"Jean-Philippe Romain" <jean-philippe.romain@foss.st.com>,
	"Yang Li" <yang.lee@linux.alibaba.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Subject: [PATCH v1 1/5] perf intel-pt: Use the perf provided "cpuid.h"
Date: Sun,  9 Nov 2025 17:31:48 -0800	[thread overview]
Message-ID: <20251110013152.3099080-2-irogers@google.com> (raw)
In-Reply-To: <20251110013152.3099080-1-irogers@google.com>

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 <irogers@google.com>
---
 tools/perf/arch/x86/tests/intel-pt-test.c | 6 +++---
 tools/perf/arch/x86/util/intel-pt.c       | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/arch/x86/tests/intel-pt-test.c b/tools/perf/arch/x86/tests/intel-pt-test.c
index b217ed67cd4e..970997759ec2 100644
--- a/tools/perf/arch/x86/tests/intel-pt-test.c
+++ b/tools/perf/arch/x86/tests/intel-pt-test.c
@@ -3,7 +3,6 @@
 #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"
@@ -11,6 +10,7 @@
 #include "debug.h"
 #include "tests/tests.h"
 #include "arch-tests.h"
+#include "../util/cpuid.h"
 #include "cpumap.h"
 
 /**
@@ -363,7 +363,7 @@ static int get_pt_caps(int cpu, struct pt_caps *caps)
 	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);
@@ -380,7 +380,7 @@ static bool is_hybrid(void)
 	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);
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index 2d7c0dec86b0..b394ad9cc635 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -12,7 +12,6 @@
 #include <linux/log2.h>
 #include <linux/zalloc.h>
 #include <linux/err.h>
-#include <cpuid.h>
 
 #include "../../../util/session.h"
 #include "../../../util/event.h"
@@ -34,6 +33,7 @@
 #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)
@@ -311,7 +311,7 @@ static void intel_pt_tsc_ctc_ratio(u32 *n, u32 *d)
 {
 	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;
 }
-- 
2.51.2.1041.gc1ab5b90ca-goog


  reply	other threads:[~2025-11-10  1:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-10  1:31 [PATCH v1 0/5] Remove NO_AUXTRACE build option Ian Rogers
2025-11-10  1:31 ` Ian Rogers [this message]
2025-11-10  1:31 ` [PATCH v1 2/5] perf build: Don't add NO_AUXTRACE if missing feature-get_cpuid Ian Rogers
2025-11-10  1:31 ` [PATCH v1 3/5] tool build: Remove __get_cpuid feature test Ian Rogers
2025-11-10  1:31 ` [PATCH v1 4/5] perf build: Remove NO_AUXTRACE build option Ian Rogers
2025-11-10  1:31 ` [PATCH v1 5/5] perf auxtrace: Remove errno.h from auxtrace.h and fix transitive dependencies Ian Rogers
2025-11-11  6:21 ` [PATCH v1 0/5] Remove NO_AUXTRACE build option Namhyung Kim
2025-11-11 18:01   ` Ian Rogers
2025-11-12  9:21     ` James Clark
2025-11-14 18:35 ` Namhyung Kim

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