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[198.54.128.70]) by smtp.gmail.com with ESMTPSA id h8-20020a05660208c800b006882a3bd03fsm432704ioz.16.2022.08.13.22.54.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 13 Aug 2022 22:54:16 -0700 (PDT) From: Rebecca Mckeever To: Mike Rapoport , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: David Hildenbrand , Rebecca Mckeever Subject: [PATCH 5/8] memblock tests: update alloc_api to test memblock_alloc_raw Date: Sun, 14 Aug 2022 00:53:57 -0500 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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. Signed-off-by: Rebecca Mckeever --- tools/testing/memblock/tests/alloc_api.c | 106 ++++++++++++++++------- tools/testing/memblock/tests/common.h | 17 ++++ 2 files changed, 90 insertions(+), 33 deletions(-) diff --git a/tools/testing/memblock/tests/alloc_api.c b/tools/testing/membl= ock/tests/alloc_api.c index fe1ee3b2e851..e3c0dc2174e9 100644 --- a/tools/testing/memblock/tests/alloc_api.c +++ b/tools/testing/memblock/tests/alloc_api.c @@ -1,6 +1,37 @@ // SPDX-License-Identifier: GPL-2.0-or-later #include "alloc_api.h" =20 +static const char * const func_testing[] =3D { + "memblock_alloc", + "memblock_alloc_raw" +}; + +static int alloc_test_flags =3D TEST_ZEROED; + +static inline const char * const get_func_testing(int flags) +{ + if (flags & TEST_RAW) + return func_testing[1]; + else + return func_testing[0]; +} + +static inline void *run_memblock_alloc(phys_addr_t size, phys_addr_t align) +{ + if (alloc_test_flags & TEST_RAW) + return memblock_alloc_raw(size, align); + else + return memblock_alloc(size, align); +} + +static inline void verify_mem_content(void *mem, int size) +{ + if (alloc_test_flags & TEST_RAW) + ASSERT_MEM_NE((char *)mem, 0, size); + else + ASSERT_MEM_EQ((char *)mem, 0, size); +} + /* * A simple test that tries to allocate a small memory region. * Expect to allocate an aligned region near the end of the available memo= ry. @@ -19,10 +50,10 @@ static int alloc_top_down_simple_check(void) =20 expected_start =3D memblock_end_of_DRAM() - SMP_CACHE_BYTES; =20 - allocated_ptr =3D memblock_alloc(size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size); + verify_mem_content(allocated_ptr, size); =20 ASSERT_EQ(rgn->size, size); ASSERT_EQ(rgn->base, expected_start); @@ -79,10 +110,10 @@ static int alloc_top_down_disjoint_check(void) =20 memblock_reserve(r1.base, r1.size); =20 - allocated_ptr =3D memblock_alloc(r2_size, alignment); + allocated_ptr =3D run_memblock_alloc(r2_size, alignment); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size); + verify_mem_content(allocated_ptr, r2_size); =20 ASSERT_EQ(rgn1->size, r1.size); ASSERT_EQ(rgn1->base, r1.base); @@ -126,10 +157,10 @@ static int alloc_top_down_before_check(void) =20 memblock_reserve(memblock_end_of_DRAM() - total_size, r1_size); =20 - allocated_ptr =3D memblock_alloc(r2_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r2_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size); + verify_mem_content(allocated_ptr, r2_size); =20 ASSERT_EQ(rgn->size, total_size); ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - total_size); @@ -176,10 +207,10 @@ static int alloc_top_down_after_check(void) =20 memblock_reserve(r1.base, r1.size); =20 - allocated_ptr =3D memblock_alloc(r2_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r2_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size); + verify_mem_content(allocated_ptr, r2_size); =20 ASSERT_EQ(rgn->size, total_size); ASSERT_EQ(rgn->base, r1.base - r2_size); @@ -228,10 +259,10 @@ static int alloc_top_down_second_fit_check(void) memblock_reserve(r1.base, r1.size); memblock_reserve(r2.base, r2.size); =20 - allocated_ptr =3D memblock_alloc(r3_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r3_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size); + verify_mem_content(allocated_ptr, r3_size); =20 ASSERT_EQ(rgn->size, r2.size + r3_size); ASSERT_EQ(rgn->base, r2.base - r3_size); @@ -284,10 +315,10 @@ static int alloc_in_between_generic_check(void) memblock_reserve(r1.base, r1.size); memblock_reserve(r2.base, r2.size); =20 - allocated_ptr =3D memblock_alloc(r3_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r3_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size); + verify_mem_content(allocated_ptr, r3_size); =20 ASSERT_EQ(rgn->size, total_size); ASSERT_EQ(rgn->base, r1.base - r2.size - r3_size); @@ -332,7 +363,7 @@ static int alloc_small_gaps_generic_check(void) region_end +=3D gap_size + region_size; } =20 - allocated_ptr =3D memblock_alloc(region_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(region_size, SMP_CACHE_BYTES); =20 ASSERT_EQ(allocated_ptr, NULL); =20 @@ -356,7 +387,7 @@ static int alloc_all_reserved_generic_check(void) /* Simulate full memory */ memblock_reserve(memblock_start_of_DRAM(), MEM_SIZE); =20 - allocated_ptr =3D memblock_alloc(SZ_256, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(SZ_256, SMP_CACHE_BYTES); =20 ASSERT_EQ(allocated_ptr, NULL); =20 @@ -392,7 +423,7 @@ static int alloc_no_space_generic_check(void) /* Simulate almost-full memory */ memblock_reserve(memblock_start_of_DRAM(), reserved_size); =20 - allocated_ptr =3D memblock_alloc(SZ_1K, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(SZ_1K, SMP_CACHE_BYTES); =20 ASSERT_EQ(allocated_ptr, NULL); =20 @@ -427,10 +458,10 @@ static int alloc_limited_space_generic_check(void) /* Simulate almost-full memory */ memblock_reserve(memblock_start_of_DRAM(), reserved_size); =20 - allocated_ptr =3D memblock_alloc(available_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(available_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, available_size); + verify_mem_content(allocated_ptr, available_size); =20 ASSERT_EQ(rgn->size, MEM_SIZE); ASSERT_EQ(rgn->base, memblock_start_of_DRAM()); @@ -458,7 +489,7 @@ static int alloc_no_memory_generic_check(void) reset_memblock_regions(); fill_memblock(); =20 - allocated_ptr =3D memblock_alloc(SZ_1K, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(SZ_1K, SMP_CACHE_BYTES); =20 ASSERT_EQ(allocated_ptr, NULL); ASSERT_EQ(rgn->size, 0); @@ -492,7 +523,7 @@ static int alloc_too_large_generic_check(void) =20 setup_memblock(); =20 - allocated_ptr =3D memblock_alloc(MEM_SIZE + SZ_2, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(MEM_SIZE + SZ_2, SMP_CACHE_BYTES); =20 ASSERT_EQ(allocated_ptr, NULL); ASSERT_EQ(rgn->size, 0); @@ -518,10 +549,10 @@ static int alloc_bottom_up_simple_check(void) =20 setup_memblock(); =20 - allocated_ptr =3D memblock_alloc(SZ_2, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(SZ_2, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, SZ_2); + verify_mem_content(allocated_ptr, SZ_2); =20 ASSERT_EQ(rgn->size, SZ_2); ASSERT_EQ(rgn->base, memblock_start_of_DRAM()); @@ -576,10 +607,10 @@ static int alloc_bottom_up_disjoint_check(void) =20 memblock_reserve(r1.base, r1.size); =20 - allocated_ptr =3D memblock_alloc(r2_size, alignment); + allocated_ptr =3D run_memblock_alloc(r2_size, alignment); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size); + verify_mem_content(allocated_ptr, r2_size); =20 ASSERT_EQ(rgn1->size, r1.size); ASSERT_EQ(rgn1->base, r1.base); @@ -620,10 +651,10 @@ static int alloc_bottom_up_before_check(void) =20 memblock_reserve(memblock_start_of_DRAM() + r1_size, r2_size); =20 - allocated_ptr =3D memblock_alloc(r1_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r1_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r1_size); + verify_mem_content(allocated_ptr, r1_size); =20 ASSERT_EQ(rgn->size, total_size); ASSERT_EQ(rgn->base, memblock_start_of_DRAM()); @@ -669,10 +700,10 @@ static int alloc_bottom_up_after_check(void) =20 memblock_reserve(r1.base, r1.size); =20 - allocated_ptr =3D memblock_alloc(r2_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r2_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size); + verify_mem_content(allocated_ptr, r2_size); =20 ASSERT_EQ(rgn->size, total_size); ASSERT_EQ(rgn->base, r1.base); @@ -722,10 +753,10 @@ static int alloc_bottom_up_second_fit_check(void) memblock_reserve(r1.base, r1.size); memblock_reserve(r2.base, r2.size); =20 - allocated_ptr =3D memblock_alloc(r3_size, SMP_CACHE_BYTES); + allocated_ptr =3D run_memblock_alloc(r3_size, SMP_CACHE_BYTES); =20 ASSERT_NE(allocated_ptr, NULL); - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size); + verify_mem_content(allocated_ptr, r3_size); =20 ASSERT_EQ(rgn->size, r2.size + r3_size); ASSERT_EQ(rgn->base, r2.base); @@ -857,13 +888,14 @@ static int alloc_too_large_check(void) return 0; } =20 -int memblock_alloc_checks(void) +static int memblock_alloc_checks_internal(int flags) { - const char *func_testing =3D "memblock_alloc"; + const char *func =3D get_func_testing(flags); =20 + alloc_test_flags =3D flags; prefix_reset(); - prefix_push(func_testing); - test_print("Running %s tests...\n", func_testing); + prefix_push(func); + test_print("Running %s tests...\n", func); =20 reset_memblock_attributes(); dummy_physical_memory_init(); @@ -887,3 +919,11 @@ int memblock_alloc_checks(void) =20 return 0; } + +int memblock_alloc_checks(void) +{ + memblock_alloc_checks_internal(TEST_ZEROED); + memblock_alloc_checks_internal(TEST_RAW); + + return 0; +} diff --git a/tools/testing/memblock/tests/common.h b/tools/testing/memblock= /tests/common.h index e0dd5b410099..a0594f1e4fe3 100644 --- a/tools/testing/memblock/tests/common.h +++ b/tools/testing/memblock/tests/common.h @@ -12,6 +12,11 @@ =20 #define MEM_SIZE SZ_16K =20 +enum test_flags { + TEST_ZEROED =3D 0x0, + TEST_RAW =3D 0x1 +}; + /** * ASSERT_EQ(): * Check the condition @@ -63,6 +68,18 @@ } \ } while (0) =20 +/** + * ASSERT_MEM_NE(): + * Check that none of the first @_size bytes of @_seen are equal to @_expe= cted. + * If false, print failed test message (if running with --verbose) and then + * assert. + */ +#define ASSERT_MEM_NE(_seen, _expected, _size) do { \ + for (int _i =3D 0; _i < (_size); _i++) { \ + ASSERT_NE((_seen)[_i], (_expected)); \ + } \ +} while (0) + #define PREFIX_PUSH() prefix_push(__func__) =20 /* --=20 2.25.1