From: carsten.haitzler@foss.arm.com
To: linux-kernel@vger.kernel.org
Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com,
mathieu.poirier@linaro.org, mike.leach@linaro.org,
leo.yan@linaro.org, linux-perf-users@vger.kernel.org,
acme@kernel.org
Subject: [PATCH v9 03/13] perf test: Add asm pureloop test tool
Date: Fri, 9 Sep 2022 16:27:53 +0100 [thread overview]
Message-ID: <20220909152803.2317006-4-carsten.haitzler@foss.arm.com> (raw)
In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com>
From: Carsten Haitzler <carsten.haitzler@arm.com>
Add test tool to be driven by further test scripts. This tool is pure
arm64 ASM with no libc usage to ensure it is the same exact
binary/code every time so it can also be re-used for many uses. It
just loops for a given fixed number of loops.
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
---
tools/perf/tests/shell/coresight/Makefile | 3 +-
.../shell/coresight/asm_pure_loop/.gitignore | 1 +
.../shell/coresight/asm_pure_loop/Makefile | 34 +++++++++++++++++++
.../coresight/asm_pure_loop/asm_pure_loop.S | 28 +++++++++++++++
4 files changed, 65 insertions(+), 1 deletion(-)
create mode 100644 tools/perf/tests/shell/coresight/asm_pure_loop/.gitignore
create mode 100644 tools/perf/tests/shell/coresight/asm_pure_loop/Makefile
create mode 100644 tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S
diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/shell/coresight/Makefile
index 3fee05cfcb0e..0c192ee253e3 100644
--- a/tools/perf/tests/shell/coresight/Makefile
+++ b/tools/perf/tests/shell/coresight/Makefile
@@ -4,7 +4,8 @@ include ../../../../../tools/scripts/Makefile.include
include ../../../../../tools/scripts/Makefile.arch
include ../../../../../tools/scripts/utilities.mak
-SUBDIRS =
+SUBDIRS = \
+ asm_pure_loop
all: $(SUBDIRS)
$(SUBDIRS):
diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop/.gitignore b/tools/perf/tests/shell/coresight/asm_pure_loop/.gitignore
new file mode 100644
index 000000000000..468673ac32e8
--- /dev/null
+++ b/tools/perf/tests/shell/coresight/asm_pure_loop/.gitignore
@@ -0,0 +1 @@
+asm_pure_loop
diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop/Makefile b/tools/perf/tests/shell/coresight/asm_pure_loop/Makefile
new file mode 100644
index 000000000000..206849e92bc9
--- /dev/null
+++ b/tools/perf/tests/shell/coresight/asm_pure_loop/Makefile
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@arm.com>, 2021
+
+include ../Makefile.miniconfig
+
+# Binary to produce
+BIN=asm_pure_loop
+# Any linking/libraries needed for the binary - empty if none needed
+LIB=
+
+all: $(BIN)
+
+$(BIN): $(BIN).S
+ifdef CORESIGHT
+ifeq ($(ARCH),arm64)
+# Build line - this is raw asm with no libc to have an always exact binary
+ $(Q)$(CC) $(BIN).S -nostdlib -static -o $(BIN) $(LIB)
+endif
+endif
+
+install-tests: all
+ifdef CORESIGHT
+ifeq ($(ARCH),arm64)
+# Install the test tool in the right place
+ $(call QUIET_INSTALL, tests) \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(BIN)'; \
+ $(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(BIN)/$(BIN)'
+endif
+endif
+
+clean:
+ $(Q)$(RM) -f $(BIN)
+
+.PHONY: all clean install-tests
diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S b/tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S
new file mode 100644
index 000000000000..75cf084a927d
--- /dev/null
+++ b/tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Tamas Zsoldos <tamas.zsoldos@arm.com>, 2021 */
+
+.globl _start
+_start:
+ mov x0, 0x0000ffff
+ mov x1, xzr
+loop:
+ nop
+ nop
+ cbnz x1, noskip
+ nop
+ nop
+ adrp x2, skip
+ add x2, x2, :lo12:skip
+ br x2
+ nop
+ nop
+noskip:
+ nop
+ nop
+skip:
+ sub x0, x0, 1
+ cbnz x0, loop
+
+ mov x0, #0
+ mov x8, #93 // __NR_exit syscall
+ svc #0
--
2.32.0
next prev parent reply other threads:[~2022-09-09 15:31 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-09 15:27 [PATCH v9 00/13] perf: test: Add trace data quality tests for CoreSight carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 01/13] perf test: Add CoreSight shell lib shared code for future tests carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 02/13] perf test: Add build infra for perf test tools for CoreSight tests carsten.haitzler
2022-10-06 11:26 ` Arnaldo Carvalho de Melo
2022-10-06 11:45 ` Arnaldo Carvalho de Melo
2022-10-06 12:58 ` Leo Yan
2022-10-06 14:22 ` Arnaldo Carvalho de Melo
2022-10-06 15:07 ` Leo Yan
2022-10-06 17:12 ` Arnaldo Carvalho de Melo
2022-10-06 17:42 ` Arnaldo Carvalho de Melo
2022-10-07 6:28 ` Jiri Slaby
2022-10-07 11:34 ` Carsten Haitzler
2022-10-07 12:44 ` Arnaldo Carvalho de Melo
2022-10-10 7:02 ` Carsten Haitzler
2022-10-10 13:54 ` Arnaldo Carvalho de Melo
2022-10-19 8:11 ` Carsten Haitzler
2022-10-19 8:51 ` Leo Yan
2022-10-19 15:16 ` Arnaldo Carvalho de Melo
2022-09-09 15:27 ` carsten.haitzler [this message]
2022-09-09 15:27 ` [PATCH v9 04/13] perf test: Add asm pureloop test shell script carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 05/13] perf test: Add git ignore for perf data generated by the CoreSight tests carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 06/13] perf test: Add memcpy thread test tool carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 07/13] perf test: Add memcpy thread test shell script carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 08/13] perf test: Add thread loop test tool carsten.haitzler
2022-09-09 15:27 ` [PATCH v9 09/13] perf test: Add thread loop test shell scripts carsten.haitzler
2022-09-09 15:28 ` [PATCH v9 10/13] perf test: Add unroll thread test tool carsten.haitzler
2022-09-09 15:28 ` [PATCH v9 11/13] perf test: Add unroll thread test shell script carsten.haitzler
2022-09-09 15:28 ` [PATCH v9 12/13] perf test: Add git ignore for tmp and output files of CoreSight tests carsten.haitzler
2022-09-09 15:28 ` [PATCH v9 13/13] perf test: Add relevant documentation about CoreSight testing carsten.haitzler
2022-10-11 7:27 ` Sven Schnelle
2022-10-19 8:16 ` Carsten Haitzler
2022-10-19 8:43 ` Leo Yan
2022-10-05 8:36 ` [PATCH v9 00/13] perf: test: Add trace data quality tests for CoreSight Carsten Haitzler
2022-10-05 18:35 ` Arnaldo Carvalho de Melo
2022-10-06 10:11 ` James Clark
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