Merge tag 'perf-tools-fixes-for-v5.19-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tool fixes from Arnaldo Carvalho de Melo:

 - Don't set data source if it's not a memory operation in ARM SPE
   (Statistical Profiling Extensions).

 - Fix handling of exponent floating point values in perf stat
   expressions.

 - Don't leak fd on failure on libperf open.

 - Fix 'perf test' CPU topology test for PPC guest systems.

 - Fix undefined behaviour on breakpoint account 'perf test' entry.

 - Record only user callchains on the "Check ARM64 callgraphs are
   complete in FP mode" 'perf test' entry.

 - Fix "perf stat CSV output linter" test on s390.

 - Sync batch of kernel headers with tools/perf/.

* tag 'perf-tools-fixes-for-v5.19-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  perf metrics: Ensure at least 1 id per metric
  tools headers arm64: Sync arm64's cputype.h with the kernel sources
  tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
  perf arm-spe: Don't set data source if it's not a memory operation
  perf expr: Allow exponents on floating point values
  perf test topology: Use !strncmp(right platform) to fix guest PPC comparision check
  perf test: Record only user callchains on the "Check Arm64 callgraphs are complete in fp mode" test
  perf beauty: Update copy of linux/socket.h with the kernel sources
  perf test: Fix variable length array undefined behavior in bp_account
  libperf evsel: Open shouldn't leak fd on failure
  perf test: Fix "perf stat CSV output linter" test on s390
  perf unwind: Fix uninitialized variable

Author: torvalds

tools/arch/arm64/include/asm/cputype.h

@@ -36,7 +36,7 @@
 #define MIDR_VARIANT(midr)	\
 	(((midr) & MIDR_VARIANT_MASK) >> MIDR_VARIANT_SHIFT)
 #define MIDR_IMPLEMENTOR_SHIFT	24
-#define MIDR_IMPLEMENTOR_MASK	(0xff << MIDR_IMPLEMENTOR_SHIFT)
+#define MIDR_IMPLEMENTOR_MASK	(0xffU << MIDR_IMPLEMENTOR_SHIFT)
 #define MIDR_IMPLEMENTOR(midr)	\
 	(((midr) & MIDR_IMPLEMENTOR_MASK) >> MIDR_IMPLEMENTOR_SHIFT)
 
@@ -118,6 +118,10 @@
 
 #define APPLE_CPU_PART_M1_ICESTORM	0x022
 #define APPLE_CPU_PART_M1_FIRESTORM	0x023
+#define APPLE_CPU_PART_M1_ICESTORM_PRO	0x024
+#define APPLE_CPU_PART_M1_FIRESTORM_PRO	0x025
+#define APPLE_CPU_PART_M1_ICESTORM_MAX	0x028
+#define APPLE_CPU_PART_M1_FIRESTORM_MAX	0x029
 
 #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
@@ -164,6 +168,10 @@
 #define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110)
 #define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM)
 #define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM)
+#define MIDR_APPLE_M1_ICESTORM_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM_PRO)
+#define MIDR_APPLE_M1_FIRESTORM_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM_PRO)
+#define MIDR_APPLE_M1_ICESTORM_MAX MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM_MAX)
+#define MIDR_APPLE_M1_FIRESTORM_MAX MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM_MAX)
 
 /* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */
 #define MIDR_FUJITSU_ERRATUM_010001		MIDR_FUJITSU_A64FX
@@ -172,7 +180,7 @@
 
 #ifndef __ASSEMBLY__
 
-#include "sysreg.h"
+#include <asm/sysreg.h>
 
 #define read_cpuid(reg)			read_sysreg_s(SYS_ ## reg)
 

tools/arch/x86/include/uapi/asm/kvm.h

@@ -428,11 +428,12 @@ struct kvm_sync_regs {
 	struct kvm_vcpu_events events;
 };
 
-#define KVM_X86_QUIRK_LINT0_REENABLED	   (1 << 0)
-#define KVM_X86_QUIRK_CD_NW_CLEARED	   (1 << 1)
-#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE	   (1 << 2)
-#define KVM_X86_QUIRK_OUT_7E_INC_RIP	   (1 << 3)
-#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4)
+#define KVM_X86_QUIRK_LINT0_REENABLED		(1 << 0)
+#define KVM_X86_QUIRK_CD_NW_CLEARED		(1 << 1)
+#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE		(1 << 2)
+#define KVM_X86_QUIRK_OUT_7E_INC_RIP		(1 << 3)
+#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT	(1 << 4)
+#define KVM_X86_QUIRK_FIX_HYPERCALL_INSN	(1 << 5)
 
 #define KVM_STATE_NESTED_FORMAT_VMX	0
 #define KVM_STATE_NESTED_FORMAT_SVM	1

tools/include/uapi/linux/prctl.h

@@ -272,6 +272,15 @@ struct prctl_mm_map {
 # define PR_SCHED_CORE_SCOPE_THREAD_GROUP	1
 # define PR_SCHED_CORE_SCOPE_PROCESS_GROUP	2
 
+/* arm64 Scalable Matrix Extension controls */
+/* Flag values must be in sync with SVE versions */
+#define PR_SME_SET_VL			63	/* set task vector length */
+# define PR_SME_SET_VL_ONEXEC		(1 << 18) /* defer effect until exec */
+#define PR_SME_GET_VL			64	/* get task vector length */
+/* Bits common to PR_SME_SET_VL and PR_SME_GET_VL */
+# define PR_SME_VL_LEN_MASK		0xffff
+# define PR_SME_VL_INHERIT		(1 << 17) /* inherit across exec */
+
 #define PR_SET_VMA		0x53564d41
 # define PR_SET_VMA_ANON_NAME		0
 

tools/lib/perf/evsel.c

@@ -149,23 +149,30 @@ int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus,
 			int fd, group_fd, *evsel_fd;
 
 			evsel_fd = FD(evsel, idx, thread);
-			if (evsel_fd == NULL)
-				return -EINVAL;
+			if (evsel_fd == NULL) {
+				err = -EINVAL;
+				goto out;
+			}
 
 			err = get_group_fd(evsel, idx, thread, &group_fd);
 			if (err < 0)
-				return err;
+				goto out;
 
 			fd = sys_perf_event_open(&evsel->attr,
 						 threads->map[thread].pid,
 						 cpu, group_fd, 0);
 
-			if (fd < 0)
-				return -errno;
+			if (fd < 0) {
+				err = -errno;
+				goto out;
+			}
 
 			*evsel_fd = fd;
 		}
 	}
+out:
+	if (err)
+		perf_evsel__close(evsel);
 
 	return err;
 }

tools/perf/tests/bp_account.c

@@ -151,11 +151,21 @@ static int detect_ioctl(void)
 static int detect_share(int wp_cnt, int bp_cnt)
 {
 	struct perf_event_attr attr;
-	int i, fd[wp_cnt + bp_cnt], ret;
+	int i, *fd = NULL, ret = -1;
+
+	if (wp_cnt + bp_cnt == 0)
+		return 0;
+
+	fd = malloc(sizeof(int) * (wp_cnt + bp_cnt));
+	if (!fd)
+		return -1;
 
 	for (i = 0; i < wp_cnt; i++) {
 		fd[i] = wp_event((void *)&the_var, &attr);
-		TEST_ASSERT_VAL("failed to create wp\n", fd[i] != -1);
+		if (fd[i] == -1) {
+			pr_err("failed to create wp\n");
+			goto out;
+		}
 	}
 
 	for (; i < (bp_cnt + wp_cnt); i++) {
@@ -166,9 +176,11 @@ static int detect_share(int wp_cnt, int bp_cnt)
 
 	ret = i != (bp_cnt + wp_cnt);
 
+out:
 	while (i--)
 		close(fd[i]);
 
+	free(fd);
 	return ret;
 }
 

tools/perf/tests/expr.c

@@ -97,6 +97,8 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
 	ret |= test(ctx, "2.2 > 2.2", 0);
 	ret |= test(ctx, "2.2 < 1.1", 0);
 	ret |= test(ctx, "1.1 > 2.2", 0);
+	ret |= test(ctx, "1.1e10 < 1.1e100", 1);
+	ret |= test(ctx, "1.1e2 > 1.1e-2", 1);
 
 	if (ret) {
 		expr__ctx_free(ctx);

tools/perf/tests/shell/lib/perf_csv_output_lint.py

@@ -6,20 +6,41 @@
 
 set -e
 
-pythonchecker=$(dirname $0)/lib/perf_csv_output_lint.py
-if [ "x$PYTHON" == "x" ]
-then
-	if which python3 > /dev/null
-	then
-		PYTHON=python3
-	elif which python > /dev/null
-	then
-		PYTHON=python
-	else
-		echo Skipping test, python not detected please set environment variable PYTHON.
-		exit 2
-	fi
-fi
+function commachecker()
+{
+	local -i cnt=0 exp=0
+
+	case "$1"
+	in "--no-args")		exp=6
+	;; "--system-wide")	exp=6
+	;; "--event")		exp=6
+	;; "--interval")	exp=7
+	;; "--per-thread")	exp=7
+	;; "--system-wide-no-aggr")	exp=7
+				[ $(uname -m) = "s390x" ] && exp=6
+	;; "--per-core")	exp=8
+	;; "--per-socket")	exp=8
+	;; "--per-node")	exp=8
+	;; "--per-die")		exp=8
+	esac
+
+	while read line
+	do
+		# Check for lines beginning with Failed
+		x=${line:0:6}
+		[ "$x" = "Failed" ] && continue
+
+		# Count the number of commas
+		x=$(echo $line | tr -d -c ',')
+		cnt="${#x}"
+		# echo $line $cnt
+		[ "$cnt" -ne "$exp" ] && {
+			echo "wrong number of fields. expected $exp in $line" 1>&2
+			exit 1;
+		}
+	done
+	return 0
+}
 
 # Return true if perf_event_paranoid is > $1 and not running as root.
 function ParanoidAndNotRoot()
@@ -30,7 +51,7 @@ function ParanoidAndNotRoot()
 check_no_args()
 {
 	echo -n "Checking CSV output: no args "
-	perf stat -x, true 2>&1 | $PYTHON $pythonchecker --no-args
+	perf stat -x, true 2>&1 | commachecker --no-args
 	echo "[Success]"
 }
 
@@ -42,7 +63,7 @@ check_system_wide()
 		echo "[Skip] paranoid and not root"
 		return
 	fi
-	perf stat -x, -a true 2>&1 | $PYTHON $pythonchecker --system-wide
+	perf stat -x, -a true 2>&1 | commachecker --system-wide
 	echo "[Success]"
 }
 
@@ -55,22 +76,22 @@ check_system_wide_no_aggr()
 		return
 	fi
 	echo -n "Checking CSV output: system wide no aggregation "
-	perf stat -x, -A -a --no-merge true 2>&1 | $PYTHON $pythonchecker --system-wide-no-aggr
+	perf stat -x, -A -a --no-merge true 2>&1 | commachecker --system-wide-no-aggr
 	echo "[Success]"
 }
 
 check_interval()
 {
 	echo -n "Checking CSV output: interval "
-	perf stat -x, -I 1000 true 2>&1 | $PYTHON $pythonchecker --interval
+	perf stat -x, -I 1000 true 2>&1 | commachecker --interval
 	echo "[Success]"
 }
 
 
 check_event()
 {
 	echo -n "Checking CSV output: event "
-	perf stat -x, -e cpu-clock true 2>&1 | $PYTHON $pythonchecker --event
+	perf stat -x, -e cpu-clock true 2>&1 | commachecker --event
 	echo "[Success]"
 }
 
@@ -82,7 +103,7 @@ check_per_core()
 		echo "[Skip] paranoid and not root"
 		return
 	fi
-	perf stat -x, --per-core -a true 2>&1 | $PYTHON $pythonchecker --per-core
+	perf stat -x, --per-core -a true 2>&1 | commachecker --per-core
 	echo "[Success]"
 }
 
@@ -94,7 +115,7 @@ check_per_thread()
 		echo "[Skip] paranoid and not root"
 		return
 	fi
-	perf stat -x, --per-thread -a true 2>&1 | $PYTHON $pythonchecker --per-thread
+	perf stat -x, --per-thread -a true 2>&1 | commachecker --per-thread
 	echo "[Success]"
 }
 
@@ -106,7 +127,7 @@ check_per_die()
 		echo "[Skip] paranoid and not root"
 		return
 	fi
-	perf stat -x, --per-die -a true 2>&1 | $PYTHON $pythonchecker --per-die
+	perf stat -x, --per-die -a true 2>&1 | commachecker --per-die
 	echo "[Success]"
 }
 
@@ -118,7 +139,7 @@ check_per_node()
 		echo "[Skip] paranoid and not root"
 		return
 	fi
-	perf stat -x, --per-node -a true 2>&1 | $PYTHON $pythonchecker --per-node
+	perf stat -x, --per-node -a true 2>&1 | commachecker --per-node
 	echo "[Success]"
 }
 
@@ -130,7 +151,7 @@ check_per_socket()
 		echo "[Skip] paranoid and not root"
 		return
 	fi
-	perf stat -x, --per-socket -a true 2>&1 | $PYTHON $pythonchecker --per-socket
+	perf stat -x, --per-socket -a true 2>&1 | commachecker --per-socket
 	echo "[Success]"
 }
 

tools/perf/tests/shell/stat+csv_output.sh

@@ -43,7 +43,7 @@ CFLAGS="-g -O0 -fno-inline -fno-omit-frame-pointer"
 cc $CFLAGS $TEST_PROGRAM_SOURCE -o $TEST_PROGRAM || exit 1
 
 # Add a 1 second delay to skip samples that are not in the leaf() function
-perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 -- $TEST_PROGRAM 2> /dev/null &
+perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null &
 PID=$!
 
 echo " + Recording (PID=$PID)..."

tools/perf/tests/shell/test_arm_callgraph_fp.sh

@@ -115,7 +115,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	 * physical_package_id will be set to -1. Hence skip this
 	 * test if physical_package_id returns -1 for cpu from perf_cpu_map.
 	 */
-	if (strncmp(session->header.env.arch, "powerpc", 7)) {
+	if (!strncmp(session->header.env.arch, "ppc64le", 7)) {
 		if (cpu__get_socket_id(perf_cpu_map__cpu(map, 0)) == -1)
 			return TEST_SKIP;
 	}