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[31.183.164.222]) by smtp.gmail.com with ESMTPSA id r14sm4503937lfr.129.2022.02.02.03.04.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Feb 2022 03:04:02 -0800 (PST) From: Karolina Drobnik To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, rppt@kernel.org, linux-kernel@vger.kernel.org, Karolina Drobnik Subject: [PATCH v2 11/16] memblock tests: Add memblock reset function Date: Wed, 2 Feb 2022 12:03:10 +0100 Message-Id: <8c185aa7e0dd68c2c7e937c9a06c90ae413e240f.1643796665.git.karolinadrobnik@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Memblock simulator needs to be able to reset memblock data structures between different test cases. Add a function that sets all fields to their default values. Add a test checking if memblock is being initialized to expected values. Signed-off-by: Karolina Drobnik --- tools/testing/memblock/Makefile | 4 ++- tools/testing/memblock/main.c | 2 ++ tools/testing/memblock/tests/basic_api.c | 32 ++++++++++++++++++++++++ tools/testing/memblock/tests/basic_api.h | 10 ++++++++ tools/testing/memblock/tests/common.c | 27 ++++++++++++++++++++ tools/testing/memblock/tests/common.h | 15 +++++++++++ 6 files changed, 89 insertions(+), 1 deletion(-) create mode 100644 tools/testing/memblock/tests/basic_api.c create mode 100644 tools/testing/memblock/tests/basic_api.h create mode 100644 tools/testing/memblock/tests/common.c create mode 100644 tools/testing/memblock/tests/common.h diff --git a/tools/testing/memblock/Makefile b/tools/testing/memblock/Makefile index e43ed9de9bcf..29715327a2d3 100644 --- a/tools/testing/memblock/Makefile +++ b/tools/testing/memblock/Makefile @@ -6,7 +6,9 @@ CFLAGS += -I. -I../../include -Wall -O2 -fsanitize=address \ -fsanitize=undefined -D CONFIG_PHYS_ADDR_T_64BIT LDFLAGS += -fsanitize=address -fsanitize=undefined TARGETS = main -OFILES = main.o memblock.o lib/slab.o mmzone.o slab.o +TEST_OFILES = tests/basic_api.o tests/common.o +DEP_OFILES = memblock.o lib/slab.o mmzone.o slab.o +OFILES = main.o $(DEP_OFILES) $(TEST_OFILES) EXTR_SRC = ../../../mm/memblock.c ifeq ($(BUILD), 32) diff --git a/tools/testing/memblock/main.c b/tools/testing/memblock/main.c index 62958da35d0f..da65b0adee91 100644 --- a/tools/testing/memblock/main.c +++ b/tools/testing/memblock/main.c @@ -1,6 +1,8 @@ // SPDX-License-Identifier: GPL-2.0-or-later +#include "tests/basic_api.h" int main(int argc, char **argv) { + memblock_basic_checks(); return 0; } diff --git a/tools/testing/memblock/tests/basic_api.c b/tools/testing/memblock/tests/basic_api.c new file mode 100644 index 000000000000..7f2597b3dd4d --- /dev/null +++ b/tools/testing/memblock/tests/basic_api.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#include +#include +#include "basic_api.h" + +#define EXPECTED_MEMBLOCK_REGIONS 128 + +static int memblock_initialization_check(void) +{ + reset_memblock(); + + assert(memblock.memory.regions); + assert(memblock.memory.cnt == 1); + assert(memblock.memory.max == EXPECTED_MEMBLOCK_REGIONS); + assert(strcmp(memblock.memory.name, "memory") == 0); + + assert(memblock.reserved.regions); + assert(memblock.reserved.cnt == 1); + assert(memblock.memory.max == EXPECTED_MEMBLOCK_REGIONS); + assert(strcmp(memblock.reserved.name, "reserved") == 0); + + assert(!memblock.bottom_up); + assert(memblock.current_limit == MEMBLOCK_ALLOC_ANYWHERE); + + return 0; +} + +int memblock_basic_checks(void) +{ + memblock_initialization_check(); + return 0; +} diff --git a/tools/testing/memblock/tests/basic_api.h b/tools/testing/memblock/tests/basic_api.h new file mode 100644 index 000000000000..1ceecfca1f47 --- /dev/null +++ b/tools/testing/memblock/tests/basic_api.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _MEMBLOCK_BASIC_H +#define _MEMBLOCK_BASIC_H + +#include +#include "common.h" + +int memblock_basic_checks(void); + +#endif diff --git a/tools/testing/memblock/tests/common.c b/tools/testing/memblock/tests/common.c new file mode 100644 index 000000000000..03de6eab0c3c --- /dev/null +++ b/tools/testing/memblock/tests/common.c @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#include "tests/common.h" +#include + +#define INIT_MEMBLOCK_REGIONS 128 +#define INIT_MEMBLOCK_RESERVED_REGIONS INIT_MEMBLOCK_REGIONS + +void reset_memblock(void) +{ + memset(memblock.memory.regions, 0, + memblock.memory.cnt * sizeof(struct memblock_region)); + memset(memblock.reserved.regions, 0, + memblock.reserved.cnt * sizeof(struct memblock_region)); + + memblock.memory.cnt = 1; + memblock.memory.max = INIT_MEMBLOCK_REGIONS; + memblock.memory.name = "memory"; + memblock.memory.total_size = 0; + + memblock.reserved.cnt = 1; + memblock.reserved.max = INIT_MEMBLOCK_RESERVED_REGIONS; + memblock.reserved.name = "reserved"; + memblock.reserved.total_size = 0; + + memblock.bottom_up = false; + memblock.current_limit = MEMBLOCK_ALLOC_ANYWHERE; +} diff --git a/tools/testing/memblock/tests/common.h b/tools/testing/memblock/tests/common.h new file mode 100644 index 000000000000..48efc4270ea1 --- /dev/null +++ b/tools/testing/memblock/tests/common.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _MEMBLOCK_TEST_H +#define _MEMBLOCK_TEST_H + +#include +#include + +struct region { + phys_addr_t base; + phys_addr_t size; +}; + +void reset_memblock(void); + +#endif -- 2.30.2