kernel/linux.git/tools/testing/memblock/tests/alloc_api.c, branch v6.6.132

memblock_tests: move variable declarations to single block

2022-09-04T10:50:35+00:00

Move variable declarations to a single block at the beginning of each testing function. Signed-off-by: Rebecca Mckeever Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/e61431e73977f305fdd027bca99d1dc119e96d84.1662264355.git.remckee0@gmail.com

memblock tests: update alloc_api to test memblock_alloc_raw

2022-08-30T10:12:00+00:00

Update memblock_alloc() tests so that they test either memblock_alloc() or memblock_alloc_raw() depending on the value of alloc_test_flags. Run through all the existing tests in memblock_alloc_api twice: once for memblock_alloc() and once for memblock_alloc_raw(). When the tests run memblock_alloc(), they test that the entire memory region is zero. When the tests run memblock_alloc_raw(), they test that the entire memory region is nonzero. The content of the memory region is initialized to nonzero, and we expect it to remain unchanged if running memblock_alloc_raw(). Reviewed-by: Shaoqin Huang Signed-off-by: Rebecca Mckeever Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/5a7cfb2f807ee2cb53ee77f9f5c910107b253d6e.1661578349.git.remckee0@gmail.com

memblock tests: add additional tests for basic api and memblock_alloc

2022-08-30T10:12:00+00:00

Add tests for memblock_add(), memblock_reserve(), memblock_remove(), memblock_free(), and memblock_alloc() for the following test scenarios. memblock_add() and memblock_reserve(): - add/reserve a memory block in the gap between two existing memory blocks, and check that the blocks are merged into one region - try to add/reserve memblock regions that extend past PHYS_ADDR_MAX memblock_remove() and memblock_free(): - remove/free a region when it is the only available region + These tests ensure that the first region is overwritten with a "dummy" region when the last remaining region of that type is removed or freed. - remove/free() a region that overlaps with two existing regions of the relevant type - try to remove/free memblock regions that extend past PHYS_ADDR_MAX memblock_alloc(): - try to allocate a region that is larger than the total size of available memory (memblock.memory) Reviewed-by: David Hildenbrand Reviewed-by: Shaoqin Huang Signed-off-by: Rebecca Mckeever Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/c23c0393c5b9a53fe7f676996913c629495e9727.1661578349.git.remckee0@gmail.com

memblock tests: add labels to verbose output for generic alloc tests

2022-08-30T10:12:00+00:00

Generic tests for memblock_alloc*() functions do not use separate functions for testing top-down and bottom-up allocation directions. Therefore, the function name that is displayed in the verbose testing output does not include the allocation direction. Add an additional prefix when running generic tests for memblock_alloc*() functions that indicates which allocation direction is set. The prefix will be displayed when the tests are run in verbose mode. Reviewed-by: David Hildenbrand Reviewed-by: Shaoqin Huang Signed-off-by: Rebecca Mckeever Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/fb76a42253d2a196a7daea29dd8121a69904f58e.1661578349.git.remckee0@gmail.com

memblock tests: update tests to check if memblock_alloc zeroed memory

2022-08-30T10:12:00+00:00

Add an assert in memblock_alloc() tests where allocation is expected to occur. The assert checks whether the entire chunk of allocated memory is cleared. The current memblock_alloc() tests do not check whether the allocated memory was zeroed. memblock_alloc() should zero the allocated memory since it is a wrapper for memblock_alloc_try_nid(). Reviewed-by: Shaoqin Huang Reviewed-by: David Hildenbrand Signed-off-by: Rebecca Mckeever Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/83ffb941b65074f40eb14552f8bfe5b71fe50abd.1661578349.git.remckee0@gmail.com

memblock tests: add verbose output to memblock tests

2022-07-04T16:58:28+00:00

Add and use functions and macros for printing verbose testing output. If the Memblock simulator was compiled with VERBOSE=1: - prefix_push(): appends the given string to a prefix string that will be printed in test_fail() and test_pass*(). - prefix_pop(): removes the last prefix from the prefix string. - prefix_reset(): clears the prefix string. - test_fail(): prints a message after a test fails containing the test number of the failing test and the prefix. - test_pass(): prints a message after a test passes containing its test number and the prefix. - test_print(): prints the given formatted output string. - test_pass_pop(): runs test_pass() followed by prefix_pop(). - PREFIX_PUSH(): runs prefix_push(__func__). If the Memblock simulator was not compiled with VERBOSE=1, these functions/macros do nothing. Add the assert wrapper macros ASSERT_EQ(), ASSERT_NE(), and ASSERT_LT(). If the assert condition fails, these macros call test_fail() before executing assert(). Acked-by: David Hildenbrand Reviewed-by: Shaoqin Huang Signed-off-by: Rebecca Mckeever Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/f234d443fe154d5ae8d8aa07284aff69edfb6f61.1656907314.git.remckee0@gmail.com

memblock tests: Add memblock_alloc tests for bottom up

2022-03-09T13:54:02+00:00

Add checks for memblock_alloc for bottom up allocation direction. The tested scenarios are: - Region can be allocated on the first fit (with and without region merging) - Region can be allocated on the second fit (with and without region merging) Add test case wrappers to test both directions in the same context. Signed-off-by: Karolina Drobnik Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/426674eee20d99dca49caf1ee0142a83dccbc98d.1646055639.git.karolinadrobnik@gmail.com

memblock tests: Add memblock_alloc tests for top down

2022-03-09T13:53:18+00:00

Add checks for memblock_alloc for top down allocation direction. The tested scenarios are: - Region can be allocated on the first fit (with and without region merging) - Region can be allocated on the second fit (with and without region merging) Add checks for both allocation directions: - Region can be allocated between two already existing entries - Limited memory available - All memory is reserved - No available memory registered with memblock Signed-off-by: Karolina Drobnik Signed-off-by: Mike Rapoport Link: https://lore.kernel.org/r/26ccf409b8ff0394559d38d792b2afb24b55887c.1646055639.git.karolinadrobnik@gmail.com