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gpu: nvgpu: add more tests for bitops

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Add more tests as part of Bitops UT.

Jira NVGPU-4478

Change-Id: Ibb81e570385ab223d0f0f4a655da2e22733bd139
Signed-off-by: ajesh <akv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2284700
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
ajesh
2020-01-24 16:15:44 +05:30
committed by Alex Waterman
parent 9f021d2658
commit 8d346debaa
2 changed files with 90 additions and 1 deletions
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64
userspace/units/posix/bitops/posix-bitops.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2018-2020, 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"),
@@ -669,6 +669,67 @@ int test_bitmap_setclear(struct unit_module *m, struct gk20a *g, void *__args)
return UNIT_SUCCESS;
}
int test_bitops_misc(struct unit_module *m, struct gk20a *g, void *__args)
{
uint32_t i, idx, bits, numlong;
uint32_t lo, hi, mask, result;
uint64_t bitset;
bits = BITS_PER_LONG - (BITS_PER_LONG/2);
for (i = 0; i <= (BITS_PER_LONG/2); i++) {
numlong = BITS_TO_LONGS(bits);
if (numlong != (BITS_PER_LONG/BITS_PER_LONG)) {
unit_return_fail(m,
"BITS_TO_LONGS Failure %d\n", numlong);
}
bits++;
}
bits = BITS_PER_LONG + (BITS_PER_LONG/2);
for (i = 0; i <= (BITS_PER_LONG/2); i++) {
numlong = BITS_TO_LONGS(bits);
if (numlong != ((BITS_PER_LONG/BITS_PER_LONG) +1U)) {
unit_return_fail(m,
"BITS_TO_LONGS Failure %d\n", numlong);
}
bits++;
}
lo = 0;
hi = 3;
for (i = 0; i < 8; i++) {
mask = GENMASK(hi, lo);
if (((mask >> lo) & 0xf) != 0xf) {
unit_return_fail(m,
"GENMASK mask failure %x\n", mask);
}
if (~((uint32_t) (0xf << lo)) & mask) {
unit_return_fail(m,
"GENMASK extra bits Failure %x\n", mask);
}
lo += 2;
hi += 2;
}
bitset = 0xabababab;
result = 0;
for_each_set_bit(idx, &bitset, 32U) {
result |= (uint32_t)(1U << idx);
}
if (result != bitset) {
unit_return_fail(m, "for_each_set_bit Failure %x\n", result);
}
for (i = 0; i < BITS_PER_LONG; i++) {
bitset = (uint64_t)1 << (uint64_t)i;
if (bitset != BIT(i)) {
unit_return_fail(m,
"BIT Failure %d\n", mask);
}
}
return UNIT_SUCCESS;
}
struct unit_module_test posix_bitops_tests[] = {
@@ -687,6 +748,7 @@ struct unit_module_test posix_bitops_tests[] = {
UNIT_TEST(test_and_clear_bit, test_test_and_setclear_bit, &clear_args, 0),
UNIT_TEST(bitmap_set, test_bitmap_setclear, &set_args, 0),
UNIT_TEST(bitmap_clear, test_bitmap_setclear, &clear_args, 0),
UNIT_TEST(bitops_misc, test_bitops_misc, NULL, 0),
};
UNIT_MODULE(posix_bitops, posix_bitops_tests, UNIT_PRIO_POSIX_TEST);

27
userspace/units/posix/bitops/posix-bitops.h
View File

@@ -402,4 +402,31 @@ int test_test_and_setclear_bit(struct unit_module *m, struct gk20a *g,
*/
int test_bitmap_setclear(struct unit_module *m, struct gk20a *g, void *__args);
/**
* Test specification for: test_bitops_misc
*
* Description: Test the various macros implemented in bitops unit.
*
* Test Type: Feature
*
* Targets: BITS_TO_LONGS, BIT, GENMASK, for_each_set_bit
*
* Input: None
*
* Steps:
* - Invoke BITS_TO_LONGS for various bit values and confirm the return value
* is as expected.
* - Invoke GENMASK for various mask value settings. Confirm if the return
* value has only the requested bits set.
* - Invoke for_each_set_bit for a particular bit pattern. Confirm if the loop
* is executed only for set bit positions.
* - Invoke BIT macro for various bit positions in loop. Confirm if the bit
* positions are as requested.
*
* Output: Returns SUCCESS if all the macro invocations returns result as
* expected. Otherwise, the test returns FAIL.
*
*/
int test_bitops_misc(struct unit_module *m, struct gk20a *g, void *__args);
#endif /* UNIT_POSIX_BITOPS_H */