gpu: nvgpu: bvec for channel and tsg

Below changes are added.

1) Added checks in
    nvgpu_channel_from_id__func, nvgpu_tsg_check_and_get_from_id
2) Added BVEC tests for
    nvgpu_channel_open_new, nvgpu_channel_from_id,
    nvgpu_tsg_check_and_get_from_id, nvgpu_tsg_set_error_notifier
3) Added common function get_random_u32.

Jira NVGPU-6905

Change-Id: I374d6f5503dc05e3224213d772a1752d82cbdc91
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2548304
(cherry picked from commit 39b2529b3e96cfd3cbd3bb020f32ee2cca0ea363)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2554021
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit

drivers/gpu/nvgpu/common/fifo/channel.c

@@ -1195,7 +1195,7 @@ NVGPU_COV_WHITELIST_BLOCK_END(NVGPU_MISRA(Rule, 15_6))
 struct nvgpu_channel *nvgpu_channel_from_id__func(struct gk20a *g,
 				u32 chid, const char *caller)
 {
-	if (chid == NVGPU_INVALID_CHANNEL_ID) {
+	if (chid >= g->fifo.num_channels) {
 		return NULL;
 	}
 

drivers/gpu/nvgpu/common/fifo/tsg.c

@@ -53,7 +53,9 @@ void nvgpu_tsg_disable(struct nvgpu_tsg *tsg)
 
 struct nvgpu_tsg *nvgpu_tsg_check_and_get_from_id(struct gk20a *g, u32 tsgid)
 {
-	if (tsgid == NVGPU_INVALID_TSG_ID) {
+	struct nvgpu_fifo *f = &g->fifo;
+
+	if (tsgid >= f->num_channels) {
 		return NULL;
 	}
 
@@ -578,6 +580,11 @@ void nvgpu_tsg_set_error_notifier(struct gk20a *g, struct nvgpu_tsg *tsg,
 		u32 error_notifier)
 {
 	struct nvgpu_channel *ch = NULL;
+	u32 max_error_notifier_id = NVGPU_ERR_NOTIFIER_PBDMA_PUSHBUFFER_CRC_MISMATCH;
+
+	if (error_notifier > max_error_notifier_id) {
+		return;
+	}
 
 	nvgpu_rwsem_down_read(&tsg->ch_list_lock);
 	nvgpu_list_for_each_entry(ch, &tsg->ch_list, nvgpu_channel, ch_entry) {

userspace/Makefile.sources

@@ -37,7 +37,8 @@ CORE_OBJS :=	\
 	$(CORE_OUT)/module.o			\
 	$(CORE_OUT)/required_tests.o		\
 	$(CORE_OUT)/results.o			\
-	$(CORE_OUT)/exec.o
+	$(CORE_OUT)/exec.o			\
+	$(CORE_OUT)/utils.o
 
 CORE_HEADERS :=	\
 	$(CORE_SRC)/../include/unit/*.h

userspace/Makefile.tmk

@@ -31,7 +31,8 @@ NVGPU_UNIT_COMMON_SRCS		:= \
                                 src/module.c \
                                 src/required_tests.c \
                                 src/results.c \
-                                src/exec.c
+                                src/exec.c \
+                                src/utils.c
 NVGPU_UNIT_COMMON_INCLUDES	:= \
                                 include \
                                 ../drivers/gpu/nvgpu \

userspace/include/unit/utils.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2021, 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_UTILS_H__
+#define __UNIT_UTILS_H__
+
+#include <unit/core.h>
+#include <nvgpu/types.h>
+
+u32 get_random_u32(u32 min, u32 max);
+
+#endif

userspace/libnvgpu-unit.export

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+# Copyright (c) 2018-2021, 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"),
@@ -24,3 +24,4 @@ __core_print_stdout
 __core_print_stderr
 __unit_info_color
 verbose_lvl
+get_random_u32

userspace/src/utils.c

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2021, 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 <unit/utils.h>
+
+u32 get_random_u32(u32 min, u32 max)
+{
+	u32 value = ((u32)rand()) % (max - min + 1);
+	value += min;
+
+	return value;
+}

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

@@ -25,6 +25,7 @@
 
 #include <unit/io.h>
 #include <unit/unit.h>
+#include <unit/utils.h>
 
 #include <nvgpu/channel.h>
 #include <nvgpu/channel_sync.h>
@@ -184,6 +185,78 @@ static int stub_channel_alloc_inst_ENOMEM(struct gk20a *g,
 	return -ENOMEM;
 }
 
+static int test_channel_open_bvec(struct unit_module *m,
+		struct gk20a *g, void *vargs, bool priviledged)
+{
+	struct nvgpu_channel *ch = NULL;
+	int ret = UNIT_FAIL;
+	u32 gr_runlist_id = nvgpu_engine_get_gr_runlist_id(g);
+	u32 valid_runlist_ids[][2] = {{0, 1}};
+	u32 invalid_runlist_ids[][2] = {{2, U32_MAX}};
+	u32 runlist_id, runlist_id_range;
+	u32 (*working_list)[2];
+	/*
+	 * i is to loop through valid and invalid cases
+	 * j is to loop through different ranges within ith case
+	 * states is for min, max and median
+	 */
+	u32 i, j, states;
+	const char *string_cases[] = {"Valid", "Invalid"};
+	const char *string_states[] = {"Min", "Max", "Mid"};
+	u32 runlist_range_difference;
+
+	/* loop through valid and invalid cases */
+	for (i = 0; i < 2; i++) {
+		/* select appropriate iteration size */
+		runlist_id_range = (i == 0) ? ARRAY_SIZE(valid_runlist_ids) : ARRAY_SIZE(invalid_runlist_ids);
+		/* select correct working list */
+		working_list =  (i == 0) ? valid_runlist_ids : invalid_runlist_ids;
+		for (j = 0; j < runlist_id_range; j++) {
+			for (states = 0; states < 3; states++) {
+				/* check for min runlist id */
+				if (states == 0)
+					runlist_id = working_list[j][0];
+				else if (states == 1) {
+					/* check for max valid runlist id */
+					runlist_id = working_list[j][1];
+				} else {
+					runlist_range_difference = working_list[j][1] - working_list[j][0];
+					/* Check for random runlist id in range */
+					if (runlist_range_difference > 1)
+						runlist_id = get_random_u32(working_list[j][0] + 1, working_list[j][1] - 1);
+					else
+						continue;
+				}
+				unit_info(m, "BVEC testing for nvgpu_channel_open_new with runlist id = 0x%08x(%s range [0x%08x - 0x%08x]  %s)\n", runlist_id, string_cases[i], working_list[j][0], working_list[j][1], string_states[states]);
+
+				ch = nvgpu_channel_open_new(g, runlist_id, priviledged, getpid(), getpid());
+				if (i == 0)
+					unit_assert(ch != NULL && ch->runlist->id == runlist_id, goto done);
+				else
+					unit_assert(ch != NULL && ch->runlist->id == gr_runlist_id, goto done);
+
+				/* Clearing for success cases */
+				if (ch != NULL) {
+					nvgpu_channel_close(ch);
+					ch = NULL;
+				}
+			}
+		}
+	}
+
+	ret = UNIT_SUCCESS;
+
+done:
+	if (ret != UNIT_SUCCESS) {
+		unit_err(m, "%s failed\n", __func__);
+		if (ch != NULL) {
+			nvgpu_channel_close(ch);
+		}
+	}
+
+	return ret;
+}
+
 int test_channel_open(struct unit_module *m, struct gk20a *g, void *vargs)
 {
 	struct nvgpu_fifo *f = &g->fifo;
@@ -277,6 +350,9 @@ int test_channel_open(struct unit_module *m, struct gk20a *g, void *vargs)
 		if (branches & F_CHANNEL_OPEN_BUG_ON) {
 			next_ch->g = NULL;
 			unit_assert(err != 0, goto done);
+			/* add to head to increase visibility of timing-related bugs */
+			nvgpu_list_add(&next_ch->free_chs, &f->free_chs);
+			f->used_channels -= 1U;
 		} else {
 			unit_assert(err == 0, goto done);
 		};
@@ -309,6 +385,9 @@ int test_channel_open(struct unit_module *m, struct gk20a *g, void *vargs)
 
 			nvgpu_channel_close(ch);
 			ch = NULL;
+
+			err = test_channel_open_bvec(m, g, vargs, privileged);
+			unit_assert(err == 0, goto done);
 		}
 	}
 	ret = UNIT_SUCCESS;
@@ -1785,6 +1864,91 @@ done:
 	return ret;
 }
 
+int test_nvgpu_channel_from_id_bvec(struct unit_module *m,
+					struct gk20a *g, void *args)
+{
+	struct nvgpu_channel *ch = NULL;
+	int ret = UNIT_FAIL;
+	/* One channel is already opened by default */
+	int num_channels_to_open = g->fifo.num_channels;
+	u32 valid_chids[][2] = {{0, g->fifo.num_channels - 1}};
+	u32 invalid_chids[][2] = {{g->fifo.num_channels, U32_MAX}};
+	u32 (*working_list)[2];
+	u32 chid, chid_ranges;
+	/*
+	 * i is to loop through valid and invalid cases
+	 * j is to loop through different ranges within ith case
+	 * states is for min, max and median
+	 */
+	u32 i, j, states;
+	int c;
+	const char *string_cases[] = {"Valid", "Invalid"};
+	const char *string_states[] = {"Min", "Max", "Mid"};
+	u32 chid_range_difference;
+
+	struct nvgpu_channel **ch_list = (struct nvgpu_channel **)calloc(sizeof(struct nvgpu_channel *), num_channels_to_open);
+
+	for (c = 0; c < num_channels_to_open; c++) {
+		ch_list[c] = nvgpu_channel_open_new(g, -1, false, getpid(), getpid());
+		if (ch_list[c] == NULL) {
+			unit_err(m, "Unable to create channels\n");
+			goto done;
+		}
+	}
+
+	/* loop through valid and invalid cases */
+	for (i = 0; i < 2; i++) {
+		/* select appropriate iteration size */
+		chid_ranges = (i == 0) ? ARRAY_SIZE(valid_chids) : ARRAY_SIZE(invalid_chids);
+		/* select correct working list */
+		working_list = (i == 0) ? valid_chids : invalid_chids;
+		for (j = 0; j < chid_ranges; j++) {
+			for (states = 0; states < 3; states++) {
+				/* check for min chid */
+				if (states == 0)
+					chid = working_list[j][0];
+				else if (states == 1) {
+					/* check for max valid chid */
+					chid = working_list[j][1];
+				} else {
+					chid_range_difference = working_list[j][1] - working_list[j][0];
+					/* Check for random chid in range */
+					if (chid_range_difference > 1)
+						chid = get_random_u32(working_list[j][0] + 1, working_list[j][1] - 1);
+					else
+						continue;
+				}
+
+				unit_info(m, "BVEC testing for nvgpu_channel_from_id with chid = 0x%08x(%s range [0x%08x - 0x%08x] %s)\n", chid, string_cases[i], working_list[j][0], working_list[j][1], string_states[states]);
+				ch = nvgpu_channel_from_id(g, chid);
+				if (i == 0)
+					unit_assert(ch != NULL, goto done);
+				else
+					unit_assert(ch == NULL, goto done);
+
+				/* Clearing for success cases */
+				if (ch != NULL) {
+					nvgpu_channel_put(ch);
+					ch = NULL;
+				}
+			}
+		}
+	}
+
+	ret = UNIT_SUCCESS;
+
+done:
+	if (ret != UNIT_SUCCESS) {
+		unit_err(m, "%s failed\n", __func__);
+	}
+
+	while (--c >= 0 ) {
+		nvgpu_channel_close(ch_list[c]);
+	}
+
+	return ret;
+}
+
 int test_channel_put_warn(struct unit_module *m, struct gk20a *g, void *vargs)
 {
 	struct nvgpu_channel *ch = NULL;
@@ -1977,6 +2141,7 @@ struct unit_module_test nvgpu_channel_tests[] = {
 	UNIT_TEST(debug_dump, test_channel_debug_dump, &unit_ctx, 0),
 	UNIT_TEST(semaphore_wakeup, test_channel_semaphore_wakeup, &unit_ctx, 0),
 	UNIT_TEST(channel_from_invalid_id, test_channel_from_invalid_id, &unit_ctx, 0),
+	UNIT_TEST(nvgpu_channel_from_chid_bvec, test_nvgpu_channel_from_id_bvec, &unit_ctx, 0),
 	UNIT_TEST(channel_put_warn, test_channel_put_warn, &unit_ctx, 0),
 	UNIT_TEST(referenceable_cleanup, test_ch_referenceable_cleanup, &unit_ctx, 0),
 	UNIT_TEST(abort_cleanup, test_channel_abort_cleanup, &unit_ctx, 0),

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2019-2021, 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"),
@@ -64,17 +64,21 @@ int test_channel_setup_sw(struct unit_module *m,
  *
  * Description: Branch coverage for nvgpu_channel_open_new.
  *
- * Test Type: Feature, Error injection
+ * Test Type: Feature, Error injection, Boundary Value
  *
  * Targets: nvgpu_channel_open_new, nvgpu_channel_from_free_chs
  *
  * Input: test_fifo_init_support() run for this GPU
+ * Equivalence classes:
+ * runlist_id
+ * - Valid :   {0 - 1, 2 - U32_MAX}
  *
  * Steps:
  * - Check that channel can be allocated with nvgpu_channel_open_new:
- *    - Allocate channel w/ valid runlist_id.
- *    - Allocate channel w/ invalid runlist_id (nvgpu_channel_open_new
- *      should set it to GR runlist_id).
+ *    - For runlist ids [0 - 1], channels must be allocated to
+ *      GR engine and Async Engine respectively and for other ranges
+ *      channels should be allocated to GR engine. Verify the same by
+ *      checking the corresponding runlist id for the channel.
  *    - Allocate w/ or w/o is_privileged_channel set.
  *    - Check that aggresive_sync_destroy is set to true, if used channels
  *      is above threshold (by setting threshold and forcing used_channels
@@ -143,7 +147,7 @@ int test_channel_close(struct unit_module *m, struct gk20a *g, void *vargs);
  *
  * Description: Branch coverage for nvgpu_channel_setup_bind.
  *
- * Test Type: Feature, Error injection, Boundary values
+ * Test Type: Feature, Error injection, Boundary value
  *
  * Targets: nvgpu_channel_setup_bind, nvgpu_channel_setup_usermode,
  *          nvgpu_channel_as_bound, nvgpu_channel_update_runlist
@@ -417,6 +421,29 @@ int test_channel_semaphore_wakeup(struct unit_module *m,
 int test_channel_from_invalid_id(struct unit_module *m, struct gk20a *g,
 								void *vargs);
 
+/**
+ * Test specification for: nvgpu_channel_from_id
+ *
+ * Description: Validate Boundary Values and Equivalence classes for the function
+ * nvgpu_channel_from_id
+ *
+ * Test Type: Boundary Value
+ *
+ * Targets: nvgpu_channel_from_id
+ *
+ * Input: test_fifo_init_support() run for this GPU
+ * Equivalence classes:
+ * chid
+ * - Invalid : { g->fifo.num_channels - U32_MAX }
+ * - Valid :   { 0 - g->fifo.num_channels - 1 }
+ *
+ * Steps:
+ * - Test corner cases to retrieve channel with invalid channel id.
+ *
+ * Output: Returns PASS if all branches gave expected results. FAIL otherwise.
+ */
+int test_nvgpu_channel_from_id_bvec(struct unit_module *m,
+					struct gk20a *g, void *args);
 /**
  * Test specification for: test_channel_put_warn
  *

userspace/units/fifo/libnvgpu-fifo-common.export

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
+# Copyright (c) 2019-2021, 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"),

userspace/units/fifo/nvgpu-fifo-common.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2019-2021, 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"),

userspace/units/fifo/tsg/nvgpu-tsg.c

@@ -26,6 +26,7 @@
 
 #include <unit/io.h>
 #include <unit/unit.h>
+#include <unit/utils.h>
 
 #include <nvgpu/channel.h>
 #include <nvgpu/error_notifier.h>
@@ -1085,6 +1086,67 @@ done:
 	return ret;
 }
 
+int test_tsg_check_and_get_from_id_bvec(struct unit_module *m,
+		struct gk20a *g, void *args)
+{
+	struct nvgpu_fifo *f = &g->fifo;
+	int ret = UNIT_FAIL;
+	u32 valid_tsg_ids[][2] = {{0, f->num_channels - 1}};
+	u32 invalid_tsg_ids[][2] = {{f->num_channels, U32_MAX}};
+	u32 tsgid, tsgid_range_len;
+	u32 (*working_list)[2];
+	/*
+	 * i is to loop through valid and invalid cases
+	 * j is to loop through different ranges within ith case
+	 * states is for min, max and median
+	 */
+	u32 i, j, states;
+	const char *string_cases[] = {"Valid", "Invalid"};
+	const char *string_states[] = {"Min", "Max", "Mid"};
+	u32 tsgid_range_difference;
+
+	/* loop through valid and invalid cases */
+	for (i = 0; i < 2; i++) {
+		/* select appropriate iteration size */
+		tsgid_range_len = (i == 0) ? ARRAY_SIZE(valid_tsg_ids) : ARRAY_SIZE(invalid_tsg_ids);
+		/* select correct working list */
+		working_list =  (i == 0) ? valid_tsg_ids : invalid_tsg_ids;
+		for (j = 0; j < tsgid_range_len; j++) {
+			for (states = 0; states < 3; states++) {
+				/* check for min tsgid */
+				if (states == 0)
+					tsgid = working_list[j][0];
+				else if (states == 1) {
+					/* check for max tsgid */
+					tsgid = working_list[j][1];
+				} else {
+					tsgid_range_difference = working_list[j][1] - working_list[j][0];
+					/* Check for random tsgid in range */
+					if (tsgid_range_difference > 1)
+						tsgid = get_random_u32(working_list[j][0] + 1, working_list[j][1] - 1);
+					else
+						continue;
+				}
+
+				unit_info(m, "BVEC testing for nvgpu_tsg_check_and_get_from_id with tsgid =  0x%08x(%s range [0x%08x - 0x%08x] %s)\n", tsgid, string_cases[i], working_list[j][0], working_list[j][1], string_states[states]);
+
+				if (i == 0)
+					unit_assert(nvgpu_tsg_check_and_get_from_id(g, tsgid) != NULL, goto done);
+				else
+					unit_assert(nvgpu_tsg_check_and_get_from_id(g,tsgid) == NULL, goto done);
+			}
+		}
+	}
+
+	ret = UNIT_SUCCESS;
+done:
+	if (ret != UNIT_SUCCESS) {
+		unit_err(m, "%s failed\n", __func__);
+	}
+
+	return ret;
+}
+
 #define F_TSG_ABORT_CH_ABORT_CLEANUP_NULL	BIT(0)
 #define F_TSG_ABORT_PREEMPT			BIT(1)
 #define F_TSG_ABORT_CH				BIT(2)
@@ -1364,6 +1426,100 @@ done:
 	return ret;
 }
 
+int test_nvgpu_tsg_set_error_notifier_bvec(struct unit_module *m,
+		struct gk20a *g, void *args)
+{
+	struct nvgpu_tsg *tsg = NULL;
+	struct nvgpu_channel *ch = NULL;
+	int ret = 0;
+
+	u32 valid_error_notifier_ids[][2] = {{NVGPU_ERR_NOTIFIER_FIFO_ERROR_IDLE_TIMEOUT, NVGPU_ERR_NOTIFIER_PBDMA_PUSHBUFFER_CRC_MISMATCH}};
+	u32 invalid_error_notifier_ids[][2] = {{NVGPU_ERR_NOTIFIER_PBDMA_PUSHBUFFER_CRC_MISMATCH + 1, U32_MAX}};
+	u32 (*working_list)[2];
+	u32 error_code, error_notifier_range_len;
+	/*
+	 * i is to loop through valid and invalid cases
+	 * j is to loop through different ranges within ith case
+	 * states is for min, max and median
+	 */
+	u32 i, j, states;
+	const char *string_cases[] = {"Valid", "Invalid"};
+	const char *string_states[] = {"Min", "Max", "Mid"};
+	u32 tsgid_range_difference;
+
+	struct nvgpu_posix_channel ch_priv;
+
+	tsg = nvgpu_tsg_open(g, getpid());
+	unit_assert(tsg != NULL, goto done);
+
+	ch = nvgpu_channel_open_new(g, ~0U, false, getpid(), getpid());
+	unit_assert(ch != NULL, goto done);
+
+	ch->os_priv = &ch_priv;
+	ch_priv.err_notifier.error = 0U;
+
+	ret = nvgpu_tsg_bind_channel(tsg, ch);
+	unit_assert(ret == 0, goto done);
+
+	ret = UNIT_FAIL;
+
+	/* loop through valid and invalid cases */
+	for (i = 0; i < 2; i++) {
+		/* select appropriate iteration size */
+		error_notifier_range_len = (i == 0) ? ARRAY_SIZE(valid_error_notifier_ids) : ARRAY_SIZE(invalid_error_notifier_ids);
+		/* select correct working list */
+		working_list = (i == 0) ? valid_error_notifier_ids : invalid_error_notifier_ids;
+		for (j = 0; j < error_notifier_range_len; j++) {
+			for (states = 0; states < 3; states++) {
+				/* check for min error code */
+				if (states == 0)
+					error_code = working_list[j][0];
+				else if (states == 1) {
+					/* check for max error code */
+					error_code = working_list[j][1];
+				} else {
+					tsgid_range_difference = working_list[j][1] - working_list[j][0];
+					/* Check for random error code in range */
+					if (tsgid_range_difference > 1)
+						error_code = get_random_u32(working_list[j][0] + 1, working_list[j][1] - 1);
+					else
+						continue;
+				}
+
+				ch_priv.err_notifier.error = 0;
+				ch_priv.err_notifier.status = 0;
+
+				unit_info(m, "BVEC testing for nvgpu_tsg_set_error_notifier with id =  0x%08x(%s range [0x%08x - 0x%08x] %s)\n", error_code, string_cases[i], working_list[j][0], working_list[j][1], string_states[states]);
+
+				nvgpu_tsg_set_error_notifier(g, tsg, error_code);
+				if (i == 0) {
+					unit_assert(ch_priv.err_notifier.error == error_code, goto done);
+				} else {
+					unit_assert(ch_priv.err_notifier.error != error_code , goto done);
+				}
+
+			}
+		}
+	}
+
+	ret = UNIT_SUCCESS;
+done:
+	if (ret != UNIT_SUCCESS) {
+		unit_err(m, "%s failed\n", __func__);
+	}
+
+	if (ch != NULL) {
+		nvgpu_channel_close(ch);
+		ch = NULL;
+	}
+	if (tsg != NULL) {
+		nvgpu_ref_put(&tsg->refcount, nvgpu_tsg_release);
+		tsg = NULL;
+	}
+
+	return ret;
+}
+
 int test_tsg_set_ctx_mmu_error(struct unit_module *m,
 		struct gk20a *g, void *args)
 {
@@ -1489,6 +1645,7 @@ struct unit_module_test nvgpu_tsg_tests[] = {
 	UNIT_TEST(open, test_tsg_open, &unit_ctx, 0),
 	UNIT_TEST(release, test_tsg_release, &unit_ctx, 0),
 	UNIT_TEST(get_from_id, test_tsg_check_and_get_from_id, &unit_ctx, 0),
+	UNIT_TEST(get_from_id_bvec, test_tsg_check_and_get_from_id_bvec, &unit_ctx, 0),
 	UNIT_TEST(bind_channel, test_tsg_bind_channel, &unit_ctx, 2),
 	UNIT_TEST(unbind_channel, test_tsg_unbind_channel, &unit_ctx, 0),
 	UNIT_TEST(unbind_channel_check_hw_state,
@@ -1498,6 +1655,7 @@ struct unit_module_test nvgpu_tsg_tests[] = {
 	UNIT_TEST(enable_disable, test_tsg_enable, &unit_ctx, 0),
 	UNIT_TEST(abort, test_tsg_abort, &unit_ctx, 0),
 	UNIT_TEST(mark_error, test_tsg_mark_error, &unit_ctx, 0),
+	UNIT_TEST(bvec_nvgpu_tsg_set_error_notifier, test_nvgpu_tsg_set_error_notifier_bvec, &unit_ctx, 0),
 	UNIT_TEST(set_ctx_mmu_error, test_tsg_set_ctx_mmu_error, &unit_ctx, 0),
 	UNIT_TEST(reset_faulted_eng_pbdma, test_tsg_reset_faulted_eng_pbdma, &unit_ctx, 0),
 	UNIT_TEST(remove_support, test_fifo_remove_support, &unit_ctx, 0),

userspace/units/fifo/tsg/nvgpu-tsg.h

@@ -297,6 +297,33 @@ int test_tsg_enable(struct unit_module *m,
 int test_tsg_check_and_get_from_id(struct unit_module *m,
 		struct gk20a *g, void *args);
 
+/**
+ * Test specification for: test_tsg_check_and_get_from_id
+ *
+ * Description: This test will validate boundary values for
+ * the function nvgpu_tsg_check_and_get_from_id
+ *
+ * Test Type: Boundary Values
+ *
+ * Targets: nvgpu_tsg_check_and_get_from_id
+ *
+ * Input: test_fifo_init_support() run for this GPU
+ * Equivalence classes:
+ * tsgid
+ * - Invalid : {(&g->fifo->num_channels - 1) - U32_MAX }
+ * - Valid :   { 0 - (&g->fifo->num_channels - 1) }
+ *
+ * Steps:
+ * - Check that nvgpu_tsg_check_and_get_from_id returns NULL for
+ *   any invalid tsgid.
+ * - Check that nvgpu_tsg_check_and_get_from_id returns correct
+ *   tsg pointer for any valid tsgid.
+ *
+ * Output: Returns PASS if all branches gave expected results. FAIL otherwise.
+ */
+int test_tsg_check_and_get_from_id_bvec(struct unit_module *m,
+		struct gk20a *g, void *args);
+
 /**
  * Test specification for: test_tsg_abort
  *
@@ -374,6 +401,33 @@ int test_tsg_setup_sw(struct unit_module *m,
 int test_tsg_mark_error(struct unit_module *m,
 		struct gk20a *g, void *args);
 
+/**
+ * Test specification for: nvgpu_tsg_set_error_notifier
+ *
+ * Description: This test will verify the boundary values for the function
+ * nvgpu_tsg_set_error_notifier
+ *
+ * Test Type: Boundary Value
+ *
+ * Targets: nvgpu_tsg_set_error_notifier
+ *
+ * Input: None
+ * Equivalence classes:
+ * error_notifier
+ * - Invalid : { NVGPU_ERR_NOTIFIER_PBDMA_PUSHBUFFER_CRC_MISMATCH + 1, U32_MAX }
+ * - Valid :   { NVGPU_ERR_NOTIFIER_FIFO_ERROR_IDLE_TIMEOUT, NVGPU_ERR_NOTIFIER_PBDMA_PUSHBUFFER_CRC_MISMATCH }
+ *
+ * Steps:
+ * Check likely cases:
+ *  - Use one TSG with one bound channel for minimum, median and maximum values
+ *    from valid classes.
+ *  - Use one TSG with one bound channel for minimum, maximum and one other random value
+ *    from invalid classes.
+ *
+ * Output: Returns PASS if all branches gave expected results. FAIL otherwise.
+ */
+int test_nvgpu_tsg_set_error_notifier_bvec(struct unit_module *m,
+		struct gk20a *g, void *args);
 /**
  * Test specification for: test_tsg_set_ctx_mmu_error
  *