gpu: nvgpu: unit: add tests for gm20b channel HAL

Added unit tests for the following HALs:
- gm20b_channel_bind

Jira NVGPU-3789

Change-Id: If25e20e99b17e3c0e3d8280326535dd6fa1e61a4
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2238575
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

userspace/Makefile.sources

@@ -75,6 +75,7 @@ UNITS :=				\
 	$(UNIT_SRC)/fifo		\
 	$(UNIT_SRC)/fifo/channel	\
 	$(UNIT_SRC)/fifo/channel/gk20a	\
+	$(UNIT_SRC)/fifo/channel/gm20b	\
 	$(UNIT_SRC)/fifo/runlist	\
 	$(UNIT_SRC)/fifo/tsg		\
 	$(UNIT_SRC)/fifo/tsg/gv11b	\

userspace/SWUTS.sources

@@ -9,6 +9,7 @@ INPUT += ../../../userspace/units/netlist/nvgpu-netlist.h
 INPUT += ../../../userspace/units/fifo/nvgpu-fifo.h
 INPUT += ../../../userspace/units/fifo/channel/nvgpu-channel.h
 INPUT += ../../../userspace/units/fifo/channel/nvgpu-channel-gk20a.h
+INPUT += ../../../userspace/units/fifo/channel/nvgpu-channel-gm20b.h
 INPUT += ../../../userspace/units/fifo/runlist/nvgpu-runlist.h
 INPUT += ../../../userspace/units/fifo/tsg/nvgpu-tsg.h
 INPUT += ../../../userspace/units/fifo/tsg/gv11b/nvgpu-tsg-gv11b.h

userspace/units/fifo/channel/gm20b/Makefile

@@ -0,0 +1,32 @@
+# 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   = nvgpu-channel-gm20b.o
+MODULE = nvgpu-channel-gm20b
+
+LIB_PATHS += -lnvgpu-fifo
+include ../../../Makefile.units
+
+lib$(MODULE).so: fifo
+
+fifo:
+	$(MAKE) -C ../..

userspace/units/fifo/channel/gm20b/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=nvgpu-channel-gm20b
+
+include $(NV_SOURCE)/kernel/nvgpu/userspace/units/Makefile.units.common.interface.tmk
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/fifo/channel/gm20b/Makefile.tmk

@@ -0,0 +1,40 @@
+################################### 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 = nvgpu-channel-gm20b
+NVGPU_UNIT_SRCS = nvgpu-channel-gm20b.c
+
+NVGPU_UNIT_INTERFACE_DIRS := \
+	$(NV_SOURCE)/kernel/nvgpu/userspace/units/fifo \
+	$(NV_SOURCE)/kernel/nvgpu/drivers/gpu/nvgpu
+
+include $(NV_SOURCE)/kernel/nvgpu/userspace/units/Makefile.units.common.tmk
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/fifo/channel/gm20b/nvgpu-channel-gm20b.c

@@ -0,0 +1,101 @@
+/*
+ * 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 <sys/types.h>
+#include <unistd.h>
+
+#include <unit/io.h>
+#include <unit/unit.h>
+
+#include <nvgpu/channel.h>
+#include <nvgpu/tsg.h>
+#include <nvgpu/gk20a.h>
+#include <nvgpu/engines.h>
+#include <nvgpu/runlist.h>
+#include <nvgpu/fuse.h>
+#include <nvgpu/dma.h>
+#include <nvgpu/io.h>
+
+#include "hal/fifo/channel_gm20b.h"
+#include <nvgpu/hw/gm20b/hw_ccsr_gm20b.h>
+
+#include "../../nvgpu-fifo.h"
+#include "nvgpu-channel-gm20b.h"
+
+#ifdef CHANNEL_GM20B_UNIT_DEBUG
+#undef unit_verbose
+#define unit_verbose	unit_info
+#else
+#define unit_verbose(unit, msg, ...) \
+	do { \
+		if (0) { \
+			unit_info(unit, msg, ##__VA_ARGS__); \
+		} \
+	} while (0)
+#endif
+
+#define assert(cond)	unit_assert(cond, goto done)
+
+int test_gm20b_channel_bind(struct unit_module *m,
+		struct gk20a *g, void *args)
+{
+	bool privileged = false;
+	u32 runlist_id = NVGPU_INVALID_RUNLIST_ID;
+	struct nvgpu_channel *ch;
+	int ret = UNIT_FAIL;
+
+	assert(g->ops.channel.bind == gm20b_channel_bind);
+
+	ch = nvgpu_channel_open_new(g, runlist_id,
+		privileged, getpid(), getpid());
+	assert(ch);
+	assert(nvgpu_atomic_read(&ch->bound) == 0);
+
+	nvgpu_writel(g, ccsr_channel_inst_r(ch->chid), 0);
+	nvgpu_writel(g, ccsr_channel_r(ch->chid), 0);
+
+	gm20b_channel_bind(ch);
+
+	assert(nvgpu_readl(g, ccsr_channel_inst_r(ch->chid)) != 0);
+	assert(nvgpu_readl(g, ccsr_channel_r(ch->chid)) != 0);
+	assert(nvgpu_atomic_read(&ch->bound) == 1);
+
+	nvgpu_atomic_set(&ch->bound, 0);
+
+	ret = UNIT_SUCCESS;
+done:
+	if (ch) {
+		nvgpu_channel_close(ch);
+	}
+
+	return ret;
+}
+
+
+struct unit_module_test nvgpu_channel_gm20b_tests[] = {
+	UNIT_TEST(init_support, test_fifo_init_support, NULL, 0),
+	UNIT_TEST(bind, test_gm20b_channel_bind, NULL, 0),
+	UNIT_TEST(remove_support, test_fifo_remove_support, NULL, 0),
+};
+
+UNIT_MODULE(nvgpu_channel_gm20b, nvgpu_channel_gm20b_tests, UNIT_PRIO_NVGPU_TEST);

userspace/units/fifo/channel/gm20b/nvgpu-channel-gm20b.h

@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+#ifndef UNIT_NVGPU_CHANNEL_GM20B_H
+#define UNIT_NVGPU_CHANNEL_GM20B_H
+
+#include <nvgpu/types.h>
+
+struct unit_module;
+struct gk20a;
+
+/** @addtogroup SWUTS-fifo-channel-gm20b
+ *  @{
+ *
+ * Software Unit Test Specification for fifo/channel/gm20b
+ */
+
+/**
+ * Test specification for: test_gm20b_channel_bind
+ *
+ * Description: Branch coverage for gm20b_channel_bind
+ *
+ * Test Type: Feature based
+ *
+ * Input: test_fifo_init_support() run for this GPU
+ *
+ * Steps:
+ * - Create channel.
+ * - Write 0 to ccsr_channel_inst_r and ccsr_channel_r.
+ * - Call g->ops.channel.bind.
+ * - Check that ccsr_channel_inst_r and ccsr_channel_r have
+ *   been programmed.
+ * - Check that ch->bound is set.
+ *
+ * Output: Returns PASS if all branches gave expected results. FAIL otherwise.
+ */
+int test_gm20b_channel_bind(struct unit_module *m,
+		struct gk20a *g, void *args);
+
+/**
+ * @}
+ */
+
+#endif /* UNIT_NVGPU_CHANNEL_GM20B_H */