gpu: nvgpu: add UT for os_sched

Add unit tests for posix os_sched unit.

Jira NVGPU-2689

Change-Id: Ideaf6ad8a0b2419efbe4e8960afa46a30f9f0e7a
Signed-off-by: ajesh <akv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2215620
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

Makefile.umbrella.tmk

@@ -39,6 +39,7 @@ NV_REPOSITORY_COMPONENTS += userspace/units/posix/env
 NV_REPOSITORY_COMPONENTS += userspace/units/posix/mockio
 NV_REPOSITORY_COMPONENTS += userspace/units/posix/fault-injection
 NV_REPOSITORY_COMPONENTS += userspace/units/posix/bug
+NV_REPOSITORY_COMPONENTS += userspace/units/posix/os_sched
 NV_REPOSITORY_COMPONENTS += userspace/units/posix/sizes
 NV_REPOSITORY_COMPONENTS += userspace/units/init
 NV_REPOSITORY_COMPONENTS += userspace/units/posix/thread

drivers/gpu/nvgpu/libnvgpu-drv_safe.export

@@ -127,6 +127,8 @@ nvgpu_cg_slcg_ce2_load_enable
 nvgpu_cg_init_gr_load_gating_prod
 nvgpu_cg_elcg_enable_no_wait
 nvgpu_cg_elcg_disable_no_wait
+nvgpu_current_pid
+nvgpu_current_tid
 nvgpu_gr_alloc
 nvgpu_gr_free
 nvgpu_gr_init
@@ -343,6 +345,7 @@ nvgpu_posix_is_fault_injection_triggered
 nvgpu_posix_probe
 nvgpu_posix_register_io
 nvgpu_prepare_poweroff
+nvgpu_print_current_impl
 nvgpu_put
 nvgpu_raw_spinlock_acquire
 nvgpu_raw_spinlock_init

userspace/Makefile.sources

@@ -47,6 +47,7 @@ UNITS :=				\
 	$(UNIT_SRC)/posix/mockio	\
 	$(UNIT_SRC)/posix/fault-injection \
 	$(UNIT_SRC)/posix/bug		\
+	$(UNIT_SRC)/posix/os_sched	\
 	$(UNIT_SRC)/posix/sizes		\
 	$(UNIT_SRC)/posix/thread	\
 	$(UNIT_SRC)/posix/cond		\

userspace/units/posix/os_sched/Makefile

@@ -0,0 +1,26 @@
+# Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+
+.SUFFIXES:
+
+OBJS   = posix-ossched.o
+MODULE = posix-ossched
+
+include ../../Makefile.units

userspace/units/posix/os_sched/Makefile.interface.tmk

@@ -0,0 +1,35 @@
+################################### tell Emacs this is a -*- makefile-gmake -*-
+#
+# Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#
+# tmake for SW Mobile component makefile
+#
+###############################################################################
+
+NVGPU_UNIT_NAME=posix-ossched
+
+include $(NV_COMPONENT_DIR)/../../Makefile.units.common.interface.tmk
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/posix/os_sched/Makefile.tmk

@@ -0,0 +1,39 @@
+################################### tell Emacs this is a -*- makefile-gmake -*-
+#
+# Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#
+# tmake for SW Mobile component makefile
+#
+###############################################################################
+
+NVGPU_UNIT_NAME=posix-ossched
+
+ifneq ($(NV_BUILD_CONFIGURATION_OS_IS_QNX),1)
+NVGPU_UNIT_SHARED_LIBRARIES += pthread
+endif
+
+include $(NV_COMPONENT_DIR)/../../Makefile.units.common.tmk
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/posix/os_sched/posix-ossched.c

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include <unit/io.h>
+#include <unit/unit.h>
+
+#include "posix-ossched.h"
+
+int test_current_pid(struct unit_module *m,
+			struct gk20a *g, void *args)
+{
+	int pid;
+	int nvgpu_pid;
+
+	pid = (int) getpid();
+	nvgpu_pid = nvgpu_current_pid(g);
+
+	if (nvgpu_pid != pid) {
+		unit_return_fail(m, "PID mismatch %d %d\n", pid, nvgpu_pid);
+	}
+
+	return UNIT_SUCCESS;
+}
+
+int test_current_tid(struct unit_module *m,
+			struct gk20a *g, void *args)
+{
+	int tid;
+	int nvgpu_tid;
+
+	tid = (int) pthread_self();
+	nvgpu_tid = nvgpu_current_tid(g);
+
+	if (nvgpu_tid != tid) {
+		unit_return_fail(m, "TID mismatch %d %d\n", tid, nvgpu_tid);
+	}
+
+	return UNIT_SUCCESS;
+}
+
+int test_print_current(struct unit_module *m,
+			struct gk20a *g, void *args)
+{
+	nvgpu_print_current(g, NULL, NVGPU_INFO);
+	nvgpu_print_current(g, NULL, NVGPU_DEBUG);
+	nvgpu_print_current(g, NULL, NVGPU_WARNING);
+	nvgpu_print_current(g, NULL, NVGPU_ERROR);
+	nvgpu_print_current(g, NULL, 10);
+
+	return UNIT_SUCCESS;
+}
+struct unit_module_test posix_ossched_tests[] = {
+	UNIT_TEST(current_pid,    test_current_pid, NULL, 0),
+	UNIT_TEST(current_tid,    test_current_tid, NULL, 0),
+	UNIT_TEST(print_current,  test_print_current, NULL, 0),
+};
+
+UNIT_MODULE(posix_ossched, posix_ossched_tests, UNIT_PRIO_POSIX_TEST);

userspace/units/posix/os_sched/posix-ossched.h

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * @addtogroup SWUTS-posix-ossched
+ * @{
+ *
+ * Software Unit Test Specification for posix-ossched
+ */
+
+#ifndef __UNIT_POSIX_OSSCHED_H__
+#define __UNIT_POSIX_OSSCHED_H__
+
+#include <nvgpu/os_sched.h>
+
+/**
+ * Test specification for test_current_pid
+ *
+ * Description: Test the PID of the current process.
+ *
+ * Test Type: Feature based.
+ *
+ * Inputs:
+ *
+ * Steps:
+ * 1) Get the PID of the current process using standard lib call.
+ * 2) Get the PID of the current process using NVGPU API.
+ * 3) Compare the PIDs obtained in step 1 and 2.
+ * 4) Return Fail if the PIDs dont match.
+ *
+ * Output:
+ * Return PASS if the PIDs fetched using standard library call and NVGPU API
+ * matches; otherwise, the test returns FAIL.
+ */
+int test_current_pid(struct unit_module *m,
+			struct gk20a *g, void *args);
+
+/**
+ * Test specification for test_current_tid
+ *
+ * Description: Test the TID of the current thread.
+ *
+ * Test Type: Feature based.
+ *
+ * Inputs:
+ *
+ * Steps:
+ * 1) Get the TID of the current thread using standard lib call.
+ * 2) Get the TID of the current thread using NVGPU API.
+ * 3) Compare the TIDs obtained in step 1 and 2.
+ * 4) Return Fail if the TIDs dont match.
+ *
+ * Output:
+ * Return PASS if the TIDs fetched using standard library call and NVGPU API
+ * matches; otherwise, the test returns FAIL.
+ */
+int test_current_tid(struct unit_module *m,
+			struct gk20a *g, void *args);
+
+/**
+ * Test specification for test_print_current
+ *
+ * Description: Print the current thread name.
+ *
+ * Test Type: Feature based.
+ *
+ * Inputs:
+ *
+ * Steps:
+ * 1) Print the current thread name with log type NVGPU_INFO
+ * 2) Print the current thread name with log type NVGPU_DEBUG
+ * 3) Print the current thread name with log type NVGPU_WARNING
+ * 4) Print the current thread name with log type NVGPU_ERROR
+ * 5) Print the current thread name with invalid log type which should result
+ * in the function using default log type.
+ *
+ * Output:
+ * The test returns PASS if all the print calls gets executed without any
+ * crash/hang.  Since the function does not return any value, the only case
+ * in which the test can fail is due to an internal hang or crash.
+ */
+int test_print_current(struct unit_module *m,
+			struct gk20a *g, void *args);
+#endif /* __UNIT_POSIX_OSSCHED_H__ */