summaryrefslogtreecommitdiffstats
path: root/tools/testing/memblock/tests
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/memblock/tests')
-rw-r--r--tools/testing/memblock/tests/alloc_api.c884
-rw-r--r--tools/testing/memblock/tests/alloc_api.h9
-rw-r--r--tools/testing/memblock/tests/alloc_exact_nid_api.c1113
-rw-r--r--tools/testing/memblock/tests/alloc_exact_nid_api.h25
-rw-r--r--tools/testing/memblock/tests/alloc_helpers_api.c414
-rw-r--r--tools/testing/memblock/tests/alloc_helpers_api.h9
-rw-r--r--tools/testing/memblock/tests/alloc_nid_api.c2733
-rw-r--r--tools/testing/memblock/tests/alloc_nid_api.h26
-rw-r--r--tools/testing/memblock/tests/basic_api.c2143
-rw-r--r--tools/testing/memblock/tests/basic_api.h9
-rw-r--r--tools/testing/memblock/tests/common.c209
-rw-r--r--tools/testing/memblock/tests/common.h173
12 files changed, 7747 insertions, 0 deletions
diff --git a/tools/testing/memblock/tests/alloc_api.c b/tools/testing/memblock/tests/alloc_api.c
new file mode 100644
index 0000000000..68f1a75cd7
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_api.c
@@ -0,0 +1,884 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "alloc_api.h"
+
+static int alloc_test_flags = TEST_F_NONE;
+
+static inline const char * const get_memblock_alloc_name(int flags)
+{
+ if (flags & TEST_F_RAW)
+ return "memblock_alloc_raw";
+ return "memblock_alloc";
+}
+
+static inline void *run_memblock_alloc(phys_addr_t size, phys_addr_t align)
+{
+ if (alloc_test_flags & TEST_F_RAW)
+ return memblock_alloc_raw(size, align);
+ return memblock_alloc(size, align);
+}
+
+/*
+ * A simple test that tries to allocate a small memory region.
+ * Expect to allocate an aligned region near the end of the available memory.
+ */
+static int alloc_top_down_simple_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_2;
+ phys_addr_t expected_start;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ expected_start = memblock_end_of_DRAM() - SMP_CACHE_BYTES;
+
+ allocated_ptr = run_memblock_alloc(size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, expected_start);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory next to a reserved region that starts at
+ * the misaligned address. Expect to create two separate entries, with the new
+ * entry aligned to the provided alignment:
+ *
+ * +
+ * | +--------+ +--------|
+ * | | rgn2 | | rgn1 |
+ * +------------+--------+---------+--------+
+ * ^
+ * |
+ * Aligned address boundary
+ *
+ * The allocation direction is top-down and region arrays are sorted from lower
+ * to higher addresses, so the new region will be the first entry in
+ * memory.reserved array. The previously reserved region does not get modified.
+ * Region counter and total size get updated.
+ */
+static int alloc_top_down_disjoint_check(void)
+{
+ /* After allocation, this will point to the "old" region */
+ struct memblock_region *rgn1 = &memblock.reserved.regions[1];
+ struct memblock_region *rgn2 = &memblock.reserved.regions[0];
+ struct region r1;
+ void *allocated_ptr = NULL;
+ phys_addr_t r2_size = SZ_16;
+ /* Use custom alignment */
+ phys_addr_t alignment = SMP_CACHE_BYTES * 2;
+ phys_addr_t total_size;
+ phys_addr_t expected_start;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SZ_2;
+ r1.size = SZ_2;
+
+ total_size = r1.size + r2_size;
+ expected_start = memblock_end_of_DRAM() - alignment;
+
+ memblock_reserve(r1.base, r1.size);
+
+ allocated_ptr = run_memblock_alloc(r2_size, alignment);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn1->size, r1.size);
+ ASSERT_EQ(rgn1->base, r1.base);
+
+ ASSERT_EQ(rgn2->size, r2_size);
+ ASSERT_EQ(rgn2->base, expected_start);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there is enough space at the end
+ * of the previously reserved block (i.e. first fit):
+ *
+ * | +--------+--------------|
+ * | | r1 | r2 |
+ * +--------------+--------+--------------+
+ *
+ * Expect a merge of both regions. Only the region size gets updated.
+ */
+static int alloc_top_down_before_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ /*
+ * The first region ends at the aligned address to test region merging
+ */
+ phys_addr_t r1_size = SMP_CACHE_BYTES;
+ phys_addr_t r2_size = SZ_512;
+ phys_addr_t total_size = r1_size + r2_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ memblock_reserve(memblock_end_of_DRAM() - total_size, r1_size);
+
+ allocated_ptr = run_memblock_alloc(r2_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there is not enough space at the
+ * end of the previously reserved block (i.e. second fit):
+ *
+ * | +-----------+------+ |
+ * | | r2 | r1 | |
+ * +------------+-----------+------+-----+
+ *
+ * Expect a merge of both regions. Both the base address and size of the region
+ * get updated.
+ */
+static int alloc_top_down_after_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ struct region r1;
+ void *allocated_ptr = NULL;
+ phys_addr_t r2_size = SZ_512;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /*
+ * The first region starts at the aligned address to test region merging
+ */
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES;
+ r1.size = SZ_8;
+
+ total_size = r1.size + r2_size;
+
+ memblock_reserve(r1.base, r1.size);
+
+ allocated_ptr = run_memblock_alloc(r2_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, r1.base - r2_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there are two reserved regions with
+ * a gap too small to fit the new region:
+ *
+ * | +--------+----------+ +------|
+ * | | r3 | r2 | | r1 |
+ * +-------+--------+----------+---+------+
+ *
+ * Expect to allocate a region before the one that starts at the lower address,
+ * and merge them into one. The region counter and total size fields get
+ * updated.
+ */
+static int alloc_top_down_second_fit_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ struct region r1, r2;
+ void *allocated_ptr = NULL;
+ phys_addr_t r3_size = SZ_1K;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SZ_512;
+ r1.size = SZ_512;
+
+ r2.base = r1.base - SZ_512;
+ r2.size = SZ_256;
+
+ total_size = r1.size + r2.size + r3_size;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc(r3_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, r2.size + r3_size);
+ ASSERT_EQ(rgn->base, r2.base - r3_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there are two reserved regions with
+ * a gap big enough to accommodate the new region:
+ *
+ * | +--------+--------+--------+ |
+ * | | r2 | r3 | r1 | |
+ * +-----+--------+--------+--------+-----+
+ *
+ * Expect to merge all of them, creating one big entry in memblock.reserved
+ * array. The region counter and total size fields get updated.
+ */
+static int alloc_in_between_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ struct region r1, r2;
+ void *allocated_ptr = NULL;
+ phys_addr_t gap_size = SMP_CACHE_BYTES;
+ phys_addr_t r3_size = SZ_64;
+ /*
+ * Calculate regions size so there's just enough space for the new entry
+ */
+ phys_addr_t rgn_size = (MEM_SIZE - (2 * gap_size + r3_size)) / 2;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.size = rgn_size;
+ r1.base = memblock_end_of_DRAM() - (gap_size + rgn_size);
+
+ r2.size = rgn_size;
+ r2.base = memblock_start_of_DRAM() + gap_size;
+
+ total_size = r1.size + r2.size + r3_size;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc(r3_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, r1.base - r2.size - r3_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when the memory is filled with reserved
+ * regions with memory gaps too small to fit the new region:
+ *
+ * +-------+
+ * | new |
+ * +--+----+
+ * | +-----+ +-----+ +-----+ |
+ * | | res | | res | | res | |
+ * +----+-----+----+-----+----+-----+----+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_small_gaps_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+ phys_addr_t region_size = SZ_1K;
+ phys_addr_t gap_size = SZ_256;
+ phys_addr_t region_end;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ region_end = memblock_start_of_DRAM();
+
+ while (region_end < memblock_end_of_DRAM()) {
+ memblock_reserve(region_end + gap_size, region_size);
+ region_end += gap_size + region_size;
+ }
+
+ allocated_ptr = run_memblock_alloc(region_size, SMP_CACHE_BYTES);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when all memory is reserved.
+ * Expect no allocation to happen.
+ */
+static int alloc_all_reserved_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /* Simulate full memory */
+ memblock_reserve(memblock_start_of_DRAM(), MEM_SIZE);
+
+ allocated_ptr = run_memblock_alloc(SZ_256, SMP_CACHE_BYTES);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when the memory is almost full,
+ * with not enough space left for the new region:
+ *
+ * +-------+
+ * | new |
+ * +-------+
+ * |-----------------------------+ |
+ * | reserved | |
+ * +-----------------------------+---+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_no_space_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+ phys_addr_t available_size = SZ_256;
+ phys_addr_t reserved_size = MEM_SIZE - available_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /* Simulate almost-full memory */
+ memblock_reserve(memblock_start_of_DRAM(), reserved_size);
+
+ allocated_ptr = run_memblock_alloc(SZ_1K, SMP_CACHE_BYTES);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when the memory is almost full,
+ * but there is just enough space left:
+ *
+ * |---------------------------+---------|
+ * | reserved | new |
+ * +---------------------------+---------+
+ *
+ * Expect to allocate memory and merge all the regions. The total size field
+ * gets updated.
+ */
+static int alloc_limited_space_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t available_size = SZ_256;
+ phys_addr_t reserved_size = MEM_SIZE - available_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /* Simulate almost-full memory */
+ memblock_reserve(memblock_start_of_DRAM(), reserved_size);
+
+ allocated_ptr = run_memblock_alloc(available_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, available_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, MEM_SIZE);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, MEM_SIZE);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there is no available memory
+ * registered (i.e. memblock.memory has only a dummy entry).
+ * Expect no allocation to happen.
+ */
+static int alloc_no_memory_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+
+ allocated_ptr = run_memblock_alloc(SZ_1K, SMP_CACHE_BYTES);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->size, 0);
+ ASSERT_EQ(rgn->base, 0);
+ ASSERT_EQ(memblock.reserved.total_size, 0);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a region that is larger than the total size of
+ * available memory (memblock.memory):
+ *
+ * +-----------------------------------+
+ * | new |
+ * +-----------------------------------+
+ * | |
+ * | |
+ * +---------------------------------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_too_large_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ allocated_ptr = run_memblock_alloc(MEM_SIZE + SZ_2, SMP_CACHE_BYTES);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->size, 0);
+ ASSERT_EQ(rgn->base, 0);
+ ASSERT_EQ(memblock.reserved.total_size, 0);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to allocate a small memory region.
+ * Expect to allocate an aligned region at the beginning of the available
+ * memory.
+ */
+static int alloc_bottom_up_simple_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ allocated_ptr = run_memblock_alloc(SZ_2, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, SZ_2, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, SZ_2);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, SZ_2);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory next to a reserved region that starts at
+ * the misaligned address. Expect to create two separate entries, with the new
+ * entry aligned to the provided alignment:
+ *
+ * +
+ * | +----------+ +----------+ |
+ * | | rgn1 | | rgn2 | |
+ * +----+----------+---+----------+-----+
+ * ^
+ * |
+ * Aligned address boundary
+ *
+ * The allocation direction is bottom-up, so the new region will be the second
+ * entry in memory.reserved array. The previously reserved region does not get
+ * modified. Region counter and total size get updated.
+ */
+static int alloc_bottom_up_disjoint_check(void)
+{
+ struct memblock_region *rgn1 = &memblock.reserved.regions[0];
+ struct memblock_region *rgn2 = &memblock.reserved.regions[1];
+ struct region r1;
+ void *allocated_ptr = NULL;
+ phys_addr_t r2_size = SZ_16;
+ /* Use custom alignment */
+ phys_addr_t alignment = SMP_CACHE_BYTES * 2;
+ phys_addr_t total_size;
+ phys_addr_t expected_start;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_start_of_DRAM() + SZ_2;
+ r1.size = SZ_2;
+
+ total_size = r1.size + r2_size;
+ expected_start = memblock_start_of_DRAM() + alignment;
+
+ memblock_reserve(r1.base, r1.size);
+
+ allocated_ptr = run_memblock_alloc(r2_size, alignment);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn1->size, r1.size);
+ ASSERT_EQ(rgn1->base, r1.base);
+
+ ASSERT_EQ(rgn2->size, r2_size);
+ ASSERT_EQ(rgn2->base, expected_start);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there is enough space at
+ * the beginning of the previously reserved block (i.e. first fit):
+ *
+ * |------------------+--------+ |
+ * | r1 | r2 | |
+ * +------------------+--------+---------+
+ *
+ * Expect a merge of both regions. Only the region size gets updated.
+ */
+static int alloc_bottom_up_before_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_512;
+ phys_addr_t r2_size = SZ_128;
+ phys_addr_t total_size = r1_size + r2_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ memblock_reserve(memblock_start_of_DRAM() + r1_size, r2_size);
+
+ allocated_ptr = run_memblock_alloc(r1_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r1_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there is not enough space at
+ * the beginning of the previously reserved block (i.e. second fit):
+ *
+ * | +--------+--------------+ |
+ * | | r1 | r2 | |
+ * +----+--------+--------------+---------+
+ *
+ * Expect a merge of both regions. Only the region size gets updated.
+ */
+static int alloc_bottom_up_after_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ struct region r1;
+ void *allocated_ptr = NULL;
+ phys_addr_t r2_size = SZ_512;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /*
+ * The first region starts at the aligned address to test region merging
+ */
+ r1.base = memblock_start_of_DRAM() + SMP_CACHE_BYTES;
+ r1.size = SZ_64;
+
+ total_size = r1.size + r2_size;
+
+ memblock_reserve(r1.base, r1.size);
+
+ allocated_ptr = run_memblock_alloc(r2_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, r1.base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory when there are two reserved regions, the
+ * first one starting at the beginning of the available memory, with a gap too
+ * small to fit the new region:
+ *
+ * |------------+ +--------+--------+ |
+ * | r1 | | r2 | r3 | |
+ * +------------+-----+--------+--------+--+
+ *
+ * Expect to allocate after the second region, which starts at the higher
+ * address, and merge them into one. The region counter and total size fields
+ * get updated.
+ */
+static int alloc_bottom_up_second_fit_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[1];
+ struct region r1, r2;
+ void *allocated_ptr = NULL;
+ phys_addr_t r3_size = SZ_1K;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_start_of_DRAM();
+ r1.size = SZ_512;
+
+ r2.base = r1.base + r1.size + SZ_512;
+ r2.size = SZ_256;
+
+ total_size = r1.size + r2.size + r3_size;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc(r3_size, SMP_CACHE_BYTES);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_test_flags);
+
+ ASSERT_EQ(rgn->size, r2.size + r3_size);
+ ASSERT_EQ(rgn->base, r2.base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/* Test case wrappers */
+static int alloc_simple_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_top_down_simple_check();
+ memblock_set_bottom_up(true);
+ alloc_bottom_up_simple_check();
+
+ return 0;
+}
+
+static int alloc_disjoint_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_top_down_disjoint_check();
+ memblock_set_bottom_up(true);
+ alloc_bottom_up_disjoint_check();
+
+ return 0;
+}
+
+static int alloc_before_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_top_down_before_check();
+ memblock_set_bottom_up(true);
+ alloc_bottom_up_before_check();
+
+ return 0;
+}
+
+static int alloc_after_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_top_down_after_check();
+ memblock_set_bottom_up(true);
+ alloc_bottom_up_after_check();
+
+ return 0;
+}
+
+static int alloc_in_between_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_in_between_generic_check);
+ run_bottom_up(alloc_in_between_generic_check);
+
+ return 0;
+}
+
+static int alloc_second_fit_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_top_down_second_fit_check();
+ memblock_set_bottom_up(true);
+ alloc_bottom_up_second_fit_check();
+
+ return 0;
+}
+
+static int alloc_small_gaps_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_small_gaps_generic_check);
+ run_bottom_up(alloc_small_gaps_generic_check);
+
+ return 0;
+}
+
+static int alloc_all_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_all_reserved_generic_check);
+ run_bottom_up(alloc_all_reserved_generic_check);
+
+ return 0;
+}
+
+static int alloc_no_space_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_no_space_generic_check);
+ run_bottom_up(alloc_no_space_generic_check);
+
+ return 0;
+}
+
+static int alloc_limited_space_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_limited_space_generic_check);
+ run_bottom_up(alloc_limited_space_generic_check);
+
+ return 0;
+}
+
+static int alloc_no_memory_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_no_memory_generic_check);
+ run_bottom_up(alloc_no_memory_generic_check);
+
+ return 0;
+}
+
+static int alloc_too_large_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_too_large_generic_check);
+ run_bottom_up(alloc_too_large_generic_check);
+
+ return 0;
+}
+
+static int memblock_alloc_checks_internal(int flags)
+{
+ const char *func = get_memblock_alloc_name(flags);
+
+ alloc_test_flags = flags;
+ prefix_reset();
+ prefix_push(func);
+ test_print("Running %s tests...\n", func);
+
+ reset_memblock_attributes();
+ dummy_physical_memory_init();
+
+ alloc_simple_check();
+ alloc_disjoint_check();
+ alloc_before_check();
+ alloc_after_check();
+ alloc_second_fit_check();
+ alloc_small_gaps_check();
+ alloc_in_between_check();
+ alloc_all_reserved_check();
+ alloc_no_space_check();
+ alloc_limited_space_check();
+ alloc_no_memory_check();
+ alloc_too_large_check();
+
+ dummy_physical_memory_cleanup();
+
+ prefix_pop();
+
+ return 0;
+}
+
+int memblock_alloc_checks(void)
+{
+ memblock_alloc_checks_internal(TEST_F_NONE);
+ memblock_alloc_checks_internal(TEST_F_RAW);
+
+ return 0;
+}
diff --git a/tools/testing/memblock/tests/alloc_api.h b/tools/testing/memblock/tests/alloc_api.h
new file mode 100644
index 0000000000..585b085baf
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_api.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _MEMBLOCK_ALLOCS_H
+#define _MEMBLOCK_ALLOCS_H
+
+#include "common.h"
+
+int memblock_alloc_checks(void);
+
+#endif
diff --git a/tools/testing/memblock/tests/alloc_exact_nid_api.c b/tools/testing/memblock/tests/alloc_exact_nid_api.c
new file mode 100644
index 0000000000..6e14447da6
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_exact_nid_api.c
@@ -0,0 +1,1113 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "alloc_exact_nid_api.h"
+#include "alloc_nid_api.h"
+
+#define FUNC_NAME "memblock_alloc_exact_nid_raw"
+
+/*
+ * contains the fraction of MEM_SIZE contained in each node in basis point
+ * units (one hundredth of 1% or 1/10000)
+ */
+static const unsigned int node_fractions[] = {
+ 2500, /* 1/4 */
+ 625, /* 1/16 */
+ 1250, /* 1/8 */
+ 1250, /* 1/8 */
+ 625, /* 1/16 */
+ 625, /* 1/16 */
+ 2500, /* 1/4 */
+ 625, /* 1/16 */
+};
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * has enough memory to allocate a region of the requested size.
+ * Expect to allocate an aligned region at the end of the requested node.
+ */
+static int alloc_exact_nid_top_down_numa_simple_check(void)
+{
+ int nid_req = 3;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved but has enough memory for the allocated region:
+ *
+ * | +---------------------------------------+ |
+ * | | requested | |
+ * +-----------+---------------------------------------+----------+
+ *
+ * | +------------------+ +-----+ |
+ * | | reserved | | new | |
+ * +-----------+------------------+--------------+-----+----------+
+ *
+ * Expect to allocate an aligned region at the end of the requested node. The
+ * region count and total size get updated.
+ */
+static int alloc_exact_nid_top_down_numa_part_reserved_check(void)
+{
+ int nid_req = 4;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[1];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_8, req_node->size);
+ r1.base = req_node->base;
+ r1.size = req_node->size / SZ_2;
+ size = r1.size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, size + r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the first
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +-----------------------+-----------+ |
+ * | | requested | node3 | |
+ * +-----------+-----------------------+-----------+--------------+
+ * + +
+ * | +-----------+ |
+ * | | rgn | |
+ * +-----------------------+-----------+--------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that ends at
+ * the end of the requested node.
+ */
+static int alloc_exact_nid_top_down_numa_split_range_low_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t req_node_end;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ req_node_end = region_end(req_node);
+ min_addr = req_node_end - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node_end - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the requested
+ * node ends before min_addr:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +---------------+ +-------------+---------+ |
+ * | | requested | | node1 | node2 | |
+ * +----+---------------+--------+-------------+---------+----------+
+ * + +
+ * | +---------+ |
+ * | | rgn | |
+ * +----------+---------+-------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that ends at
+ * the end of the requested node.
+ */
+static int alloc_exact_nid_top_down_numa_no_overlap_split_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *node2 = &memblock.memory.regions[6];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_512;
+ min_addr = node2->base - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node ends
+ * before min_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * |-----------+ +----------+----...----+----------+ |
+ * | requested | | min node | ... | max node | |
+ * +-----------+-----------+----------+----...----+----------+------+
+ * + +
+ * | +-----+ |
+ * | | rgn | |
+ * +-----+-----+----------------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that ends at
+ * the end of the requested node.
+ */
+static int alloc_exact_nid_top_down_numa_no_overlap_low_check(void)
+{
+ int nid_req = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * has enough memory to allocate a region of the requested size.
+ * Expect to allocate an aligned region at the beginning of the requested node.
+ */
+static int alloc_exact_nid_bottom_up_numa_simple_check(void)
+{
+ int nid_req = 3;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved but has enough memory for the allocated region:
+ *
+ * | +---------------------------------------+ |
+ * | | requested | |
+ * +-----------+---------------------------------------+---------+
+ *
+ * | +------------------+-----+ |
+ * | | reserved | new | |
+ * +-----------+------------------+-----+------------------------+
+ *
+ * Expect to allocate an aligned region in the requested node that merges with
+ * the existing reserved region. The total size gets updated.
+ */
+static int alloc_exact_nid_bottom_up_numa_part_reserved_check(void)
+{
+ int nid_req = 4;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_8, req_node->size);
+ r1.base = req_node->base;
+ r1.size = req_node->size / SZ_2;
+ size = r1.size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+ total_size = size + r1.size;
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, total_size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the first
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +-----------------------+-----------+ |
+ * | | requested | node3 | |
+ * +-----------+-----------------------+-----------+--------------+
+ * + +
+ * | +-----------+ |
+ * | | rgn | |
+ * +-----------+-----------+--------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region at the beginning
+ * of the requested node.
+ */
+static int alloc_exact_nid_bottom_up_numa_split_range_low_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t req_node_end;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ req_node_end = region_end(req_node);
+ min_addr = req_node_end - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), req_node_end);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the requested
+ * node ends before min_addr:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +---------------+ +-------------+---------+ |
+ * | | requested | | node1 | node2 | |
+ * +----+---------------+--------+-------------+---------+---------+
+ * + +
+ * | +---------+ |
+ * | | rgn | |
+ * +----+---------+------------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that starts at
+ * the beginning of the requested node.
+ */
+static int alloc_exact_nid_bottom_up_numa_no_overlap_split_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *node2 = &memblock.memory.regions[6];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_512;
+ min_addr = node2->base - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node ends
+ * before min_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * |-----------+ +----------+----...----+----------+ |
+ * | requested | | min node | ... | max node | |
+ * +-----------+-----------+----------+----...----+----------+------+
+ * + +
+ * |-----+ |
+ * | rgn | |
+ * +-----+----------------------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that starts at
+ * the beginning of the requested node.
+ */
+static int alloc_exact_nid_bottom_up_numa_no_overlap_low_check(void)
+{
+ int nid_req = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * does not have enough memory to allocate a region of the requested size:
+ *
+ * | +-----+ |
+ * | | req | |
+ * +---+-----+----------------------------+
+ *
+ * +---------+
+ * | rgn |
+ * +---------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_small_node_generic_check(void)
+{
+ int nid_req = 1;
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_2 * req_node->size;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is fully reserved:
+ *
+ * | +---------+ |
+ * | |requested| |
+ * +--------------+---------+-------------+
+ *
+ * | +---------+ |
+ * | | reserved| |
+ * +--------------+---------+-------------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_node_reserved_generic_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = req_node->size;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(req_node->base, req_node->size);
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved and does not have enough contiguous memory for the
+ * allocated region:
+ *
+ * | +-----------------------+ |
+ * | | requested | |
+ * +-----------+-----------------------+----+
+ *
+ * | +----------+ |
+ * | | reserved | |
+ * +-----------------+----------+-----------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_part_reserved_fail_generic_check(void)
+{
+ int nid_req = 4;
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_2;
+ r1.base = req_node->base + (size / SZ_2);
+ r1.size = size;
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the second
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +--------------------------+---------+ |
+ * | | first node |requested| |
+ * +------+--------------------------+---------+----------------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_split_range_high_generic_check(void)
+{
+ int nid_req = 3;
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = req_node->base - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node starts
+ * after max_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +----------+----...----+----------+ +-----------+ |
+ * | | min node | ... | max node | | requested | |
+ * +-----+----------+----...----+----------+--------+-----------+---+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_no_overlap_high_generic_check(void)
+{
+ int nid_req = 7;
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * does not have enough memory to allocate a region of the requested size.
+ * Additionally, none of the nodes have enough memory to allocate the region:
+ *
+ * +-----------------------------------+
+ * | new |
+ * +-----------------------------------+
+ * |-------+-------+-------+-------+-------+-------+-------+-------|
+ * | node0 | node1 | node2 | node3 | node4 | node5 | node6 | node7 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_large_region_generic_check(void)
+{
+ int nid_req = 3;
+ void *allocated_ptr = NULL;
+ phys_addr_t size = MEM_SIZE / SZ_2;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_addr range when
+ * there are two reserved regions at the borders. The requested node starts at
+ * min_addr and ends at max_addr and is the same size as the region to be
+ * allocated:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +-----------+-----------------------+-----------------------|
+ * | | node5 | requested | node7 |
+ * +------+-----------+-----------------------+-----------------------+
+ * + +
+ * | +----+-----------------------+----+ |
+ * | | r2 | new | r1 | |
+ * +-------------+----+-----------------------+----+------------------+
+ *
+ * Expect to merge all of the regions into one. The region counter and total
+ * size fields get updated.
+ */
+static int alloc_exact_nid_numa_reserved_full_merge_generic_check(void)
+{
+ int nid_req = 6;
+ int nid_next = nid_req + 1;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *next_node = &memblock.memory.regions[nid_next];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t size = req_node->size;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ r1.base = next_node->base;
+ r1.size = SZ_128;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (size + r2.size);
+
+ total_size = r1.size + r2.size + size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_NE(allocated_ptr, 0, size);
+
+ ASSERT_EQ(new_rgn->size, total_size);
+ ASSERT_EQ(new_rgn->base, r2.base);
+
+ ASSERT_LE(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(req_node), region_end(new_rgn));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range,
+ * where the total range can fit the region, but it is split between two nodes
+ * and everything else is reserved. Additionally, nid is set to NUMA_NO_NODE
+ * instead of requesting a specific node:
+ *
+ * +-----------+
+ * | new |
+ * +-----------+
+ * | +---------------------+-----------|
+ * | | prev node | next node |
+ * +------+---------------------+-----------+
+ * + +
+ * |----------------------+ +-----|
+ * | r1 | | r2 |
+ * +----------------------+-----------+-----+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_addr
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_exact_nid_numa_split_all_reserved_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+ struct memblock_region *next_node = &memblock.memory.regions[7];
+ struct region r1, r2;
+ phys_addr_t size = SZ_256;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ r2.base = next_node->base + SZ_128;
+ r2.size = memblock_end_of_DRAM() - r2.base;
+
+ r1.size = MEM_SIZE - (r2.size + size);
+ r1.base = memblock_start_of_DRAM();
+
+ min_addr = r1.base + r1.size;
+ max_addr = r2.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = memblock_alloc_exact_nid_raw(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/* Test case wrappers for NUMA tests */
+static int alloc_exact_nid_numa_simple_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_exact_nid_top_down_numa_simple_check();
+ memblock_set_bottom_up(true);
+ alloc_exact_nid_bottom_up_numa_simple_check();
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_part_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_exact_nid_top_down_numa_part_reserved_check();
+ memblock_set_bottom_up(true);
+ alloc_exact_nid_bottom_up_numa_part_reserved_check();
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_split_range_low_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_exact_nid_top_down_numa_split_range_low_check();
+ memblock_set_bottom_up(true);
+ alloc_exact_nid_bottom_up_numa_split_range_low_check();
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_no_overlap_split_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_exact_nid_top_down_numa_no_overlap_split_check();
+ memblock_set_bottom_up(true);
+ alloc_exact_nid_bottom_up_numa_no_overlap_split_check();
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_no_overlap_low_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_exact_nid_top_down_numa_no_overlap_low_check();
+ memblock_set_bottom_up(true);
+ alloc_exact_nid_bottom_up_numa_no_overlap_low_check();
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_small_node_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_small_node_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_small_node_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_node_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_node_reserved_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_node_reserved_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_part_reserved_fail_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_part_reserved_fail_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_part_reserved_fail_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_split_range_high_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_split_range_high_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_split_range_high_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_no_overlap_high_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_no_overlap_high_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_no_overlap_high_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_large_region_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_large_region_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_large_region_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_reserved_full_merge_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_reserved_full_merge_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_reserved_full_merge_generic_check);
+
+ return 0;
+}
+
+static int alloc_exact_nid_numa_split_all_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_exact_nid_numa_split_all_reserved_generic_check);
+ run_bottom_up(alloc_exact_nid_numa_split_all_reserved_generic_check);
+
+ return 0;
+}
+
+int __memblock_alloc_exact_nid_numa_checks(void)
+{
+ test_print("Running %s NUMA tests...\n", FUNC_NAME);
+
+ alloc_exact_nid_numa_simple_check();
+ alloc_exact_nid_numa_part_reserved_check();
+ alloc_exact_nid_numa_split_range_low_check();
+ alloc_exact_nid_numa_no_overlap_split_check();
+ alloc_exact_nid_numa_no_overlap_low_check();
+
+ alloc_exact_nid_numa_small_node_check();
+ alloc_exact_nid_numa_node_reserved_check();
+ alloc_exact_nid_numa_part_reserved_fail_check();
+ alloc_exact_nid_numa_split_range_high_check();
+ alloc_exact_nid_numa_no_overlap_high_check();
+ alloc_exact_nid_numa_large_region_check();
+ alloc_exact_nid_numa_reserved_full_merge_check();
+ alloc_exact_nid_numa_split_all_reserved_check();
+
+ return 0;
+}
+
+int memblock_alloc_exact_nid_checks(void)
+{
+ prefix_reset();
+ prefix_push(FUNC_NAME);
+
+ reset_memblock_attributes();
+ dummy_physical_memory_init();
+
+ memblock_alloc_exact_nid_range_checks();
+ memblock_alloc_exact_nid_numa_checks();
+
+ dummy_physical_memory_cleanup();
+
+ prefix_pop();
+
+ return 0;
+}
diff --git a/tools/testing/memblock/tests/alloc_exact_nid_api.h b/tools/testing/memblock/tests/alloc_exact_nid_api.h
new file mode 100644
index 0000000000..cef419d55d
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_exact_nid_api.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _MEMBLOCK_ALLOC_EXACT_NID_H
+#define _MEMBLOCK_ALLOC_EXACT_NID_H
+
+#include "common.h"
+
+int memblock_alloc_exact_nid_checks(void);
+int __memblock_alloc_exact_nid_numa_checks(void);
+
+#ifdef CONFIG_NUMA
+static inline int memblock_alloc_exact_nid_numa_checks(void)
+{
+ __memblock_alloc_exact_nid_numa_checks();
+ return 0;
+}
+
+#else
+static inline int memblock_alloc_exact_nid_numa_checks(void)
+{
+ return 0;
+}
+
+#endif /* CONFIG_NUMA */
+
+#endif
diff --git a/tools/testing/memblock/tests/alloc_helpers_api.c b/tools/testing/memblock/tests/alloc_helpers_api.c
new file mode 100644
index 0000000000..3ef9486da8
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_helpers_api.c
@@ -0,0 +1,414 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "alloc_helpers_api.h"
+
+/*
+ * A simple test that tries to allocate a memory region above a specified,
+ * aligned address:
+ *
+ * +
+ * | +-----------+ |
+ * | | rgn | |
+ * +----------+-----------+---------+
+ * ^
+ * |
+ * Aligned min_addr
+ *
+ * Expect to allocate a cleared region at the minimal memory address.
+ */
+static int alloc_from_simple_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_16;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_end_of_DRAM() - SMP_CACHE_BYTES;
+
+ allocated_ptr = memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_EQ(allocated_ptr, 0, size);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, min_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region above a certain address.
+ * The minimal address here is not aligned:
+ *
+ * + +
+ * | + +---------+ |
+ * | | | rgn | |
+ * +------+------+---------+------------+
+ * ^ ^------.
+ * | |
+ * min_addr Aligned address
+ * boundary
+ *
+ * Expect to allocate a cleared region at the closest aligned memory address.
+ */
+static int alloc_from_misaligned_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_32;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /* A misaligned address */
+ min_addr = memblock_end_of_DRAM() - (SMP_CACHE_BYTES * 2 - 1);
+
+ allocated_ptr = memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_MEM_EQ(allocated_ptr, 0, size);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - SMP_CACHE_BYTES);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region above an address that is too
+ * close to the end of the memory:
+ *
+ * + +
+ * | +--------+---+ |
+ * | | rgn + | |
+ * +-----------+--------+---+------+
+ * ^ ^
+ * | |
+ * | min_addr
+ * |
+ * Aligned address
+ * boundary
+ *
+ * Expect to prioritize granting memory over satisfying the minimal address
+ * requirement.
+ */
+static int alloc_from_top_down_high_addr_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_32;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /* The address is too close to the end of the memory */
+ min_addr = memblock_end_of_DRAM() - SZ_16;
+
+ allocated_ptr = memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - SMP_CACHE_BYTES);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region when there is no space
+ * available above the minimal address above a certain address:
+ *
+ * +
+ * | +---------+-------------|
+ * | | rgn | |
+ * +--------+---------+-------------+
+ * ^
+ * |
+ * min_addr
+ *
+ * Expect to prioritize granting memory over satisfying the minimal address
+ * requirement and to allocate next to the previously reserved region. The
+ * regions get merged into one.
+ */
+static int alloc_from_top_down_no_space_above_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_64;
+ phys_addr_t r2_size = SZ_2;
+ phys_addr_t total_size = r1_size + r2_size;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_end_of_DRAM() - SMP_CACHE_BYTES * 2;
+
+ /* No space above this address */
+ memblock_reserve(min_addr, r2_size);
+
+ allocated_ptr = memblock_alloc_from(r1_size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->base, min_addr - r1_size);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region with a minimal address below
+ * the start address of the available memory. As the allocation is top-down,
+ * first reserve a region that will force allocation near the start.
+ * Expect successful allocation and merge of both regions.
+ */
+static int alloc_from_top_down_min_addr_cap_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_64;
+ phys_addr_t min_addr;
+ phys_addr_t start_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ start_addr = (phys_addr_t)memblock_start_of_DRAM();
+ min_addr = start_addr - SMP_CACHE_BYTES * 3;
+
+ memblock_reserve(start_addr + r1_size, MEM_SIZE - r1_size);
+
+ allocated_ptr = memblock_alloc_from(r1_size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->base, start_addr);
+ ASSERT_EQ(rgn->size, MEM_SIZE);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, MEM_SIZE);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region above an address that is too
+ * close to the end of the memory:
+ *
+ * +
+ * |-----------+ + |
+ * | rgn | | |
+ * +-----------+--------------+-----+
+ * ^ ^
+ * | |
+ * Aligned address min_addr
+ * boundary
+ *
+ * Expect to prioritize granting memory over satisfying the minimal address
+ * requirement. Allocation happens at beginning of the available memory.
+ */
+static int alloc_from_bottom_up_high_addr_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_32;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ /* The address is too close to the end of the memory */
+ min_addr = memblock_end_of_DRAM() - SZ_8;
+
+ allocated_ptr = memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region when there is no space
+ * available above the minimal address above a certain address:
+ *
+ * +
+ * |-----------+ +-------------------|
+ * | rgn | | |
+ * +-----------+----+-------------------+
+ * ^
+ * |
+ * min_addr
+ *
+ * Expect to prioritize granting memory over satisfying the minimal address
+ * requirement and to allocate at the beginning of the available memory.
+ */
+static int alloc_from_bottom_up_no_space_above_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_64;
+ phys_addr_t min_addr;
+ phys_addr_t r2_size;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SZ_128;
+ r2_size = memblock_end_of_DRAM() - min_addr;
+
+ /* No space above this address */
+ memblock_reserve(min_addr - SMP_CACHE_BYTES, r2_size);
+
+ allocated_ptr = memblock_alloc_from(r1_size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+ ASSERT_EQ(rgn->size, r1_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, r1_size + r2_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region with a minimal address below
+ * the start address of the available memory. Expect to allocate a region
+ * at the beginning of the available memory.
+ */
+static int alloc_from_bottom_up_min_addr_cap_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_64;
+ phys_addr_t min_addr;
+ phys_addr_t start_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ start_addr = (phys_addr_t)memblock_start_of_DRAM();
+ min_addr = start_addr - SMP_CACHE_BYTES * 3;
+
+ allocated_ptr = memblock_alloc_from(r1_size, SMP_CACHE_BYTES, min_addr);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ ASSERT_EQ(rgn->base, start_addr);
+ ASSERT_EQ(rgn->size, r1_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, r1_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/* Test case wrappers */
+static int alloc_from_simple_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_from_simple_generic_check);
+ run_bottom_up(alloc_from_simple_generic_check);
+
+ return 0;
+}
+
+static int alloc_from_misaligned_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_from_misaligned_generic_check);
+ run_bottom_up(alloc_from_misaligned_generic_check);
+
+ return 0;
+}
+
+static int alloc_from_high_addr_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_from_top_down_high_addr_check();
+ memblock_set_bottom_up(true);
+ alloc_from_bottom_up_high_addr_check();
+
+ return 0;
+}
+
+static int alloc_from_no_space_above_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_from_top_down_no_space_above_check();
+ memblock_set_bottom_up(true);
+ alloc_from_bottom_up_no_space_above_check();
+
+ return 0;
+}
+
+static int alloc_from_min_addr_cap_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_from_top_down_min_addr_cap_check();
+ memblock_set_bottom_up(true);
+ alloc_from_bottom_up_min_addr_cap_check();
+
+ return 0;
+}
+
+int memblock_alloc_helpers_checks(void)
+{
+ const char *func_testing = "memblock_alloc_from";
+
+ prefix_reset();
+ prefix_push(func_testing);
+ test_print("Running %s tests...\n", func_testing);
+
+ reset_memblock_attributes();
+ dummy_physical_memory_init();
+
+ alloc_from_simple_check();
+ alloc_from_misaligned_check();
+ alloc_from_high_addr_check();
+ alloc_from_no_space_above_check();
+ alloc_from_min_addr_cap_check();
+
+ dummy_physical_memory_cleanup();
+
+ prefix_pop();
+
+ return 0;
+}
diff --git a/tools/testing/memblock/tests/alloc_helpers_api.h b/tools/testing/memblock/tests/alloc_helpers_api.h
new file mode 100644
index 0000000000..c9e4827b16
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_helpers_api.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _MEMBLOCK_ALLOC_HELPERS_H
+#define _MEMBLOCK_ALLOC_HELPERS_H
+
+#include "common.h"
+
+int memblock_alloc_helpers_checks(void);
+
+#endif
diff --git a/tools/testing/memblock/tests/alloc_nid_api.c b/tools/testing/memblock/tests/alloc_nid_api.c
new file mode 100644
index 0000000000..49bb416d34
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_nid_api.c
@@ -0,0 +1,2733 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "alloc_nid_api.h"
+
+static int alloc_nid_test_flags = TEST_F_NONE;
+
+/*
+ * contains the fraction of MEM_SIZE contained in each node in basis point
+ * units (one hundredth of 1% or 1/10000)
+ */
+static const unsigned int node_fractions[] = {
+ 2500, /* 1/4 */
+ 625, /* 1/16 */
+ 1250, /* 1/8 */
+ 1250, /* 1/8 */
+ 625, /* 1/16 */
+ 625, /* 1/16 */
+ 2500, /* 1/4 */
+ 625, /* 1/16 */
+};
+
+static inline const char * const get_memblock_alloc_nid_name(int flags)
+{
+ if (flags & TEST_F_EXACT)
+ return "memblock_alloc_exact_nid_raw";
+ if (flags & TEST_F_RAW)
+ return "memblock_alloc_try_nid_raw";
+ return "memblock_alloc_try_nid";
+}
+
+static inline void *run_memblock_alloc_nid(phys_addr_t size,
+ phys_addr_t align,
+ phys_addr_t min_addr,
+ phys_addr_t max_addr, int nid)
+{
+ assert(!(alloc_nid_test_flags & TEST_F_EXACT) ||
+ (alloc_nid_test_flags & TEST_F_RAW));
+ /*
+ * TEST_F_EXACT should be checked before TEST_F_RAW since
+ * memblock_alloc_exact_nid_raw() performs raw allocations.
+ */
+ if (alloc_nid_test_flags & TEST_F_EXACT)
+ return memblock_alloc_exact_nid_raw(size, align, min_addr,
+ max_addr, nid);
+ if (alloc_nid_test_flags & TEST_F_RAW)
+ return memblock_alloc_try_nid_raw(size, align, min_addr,
+ max_addr, nid);
+ return memblock_alloc_try_nid(size, align, min_addr, max_addr, nid);
+}
+
+/*
+ * A simple test that tries to allocate a memory region within min_addr and
+ * max_addr range:
+ *
+ * + +
+ * | + +-----------+ |
+ * | | | rgn | |
+ * +----+-------+-----------+------+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect to allocate a region that ends at max_addr.
+ */
+static int alloc_nid_top_down_simple_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_128;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t rgn_end;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES * 2;
+ max_addr = min_addr + SZ_512;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+ rgn_end = rgn->base + rgn->size;
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, max_addr - size);
+ ASSERT_EQ(rgn_end, max_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to allocate a memory region within min_addr and
+ * max_addr range, where the end address is misaligned:
+ *
+ * + + +
+ * | + +---------+ + |
+ * | | | rgn | | |
+ * +------+-------+---------+--+----+
+ * ^ ^ ^
+ * | | |
+ * min_add | max_addr
+ * |
+ * Aligned address
+ * boundary
+ *
+ * Expect to allocate an aligned region that ends before max_addr.
+ */
+static int alloc_nid_top_down_end_misaligned_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_128;
+ phys_addr_t misalign = SZ_2;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t rgn_end;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES * 2;
+ max_addr = min_addr + SZ_512 + misalign;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+ rgn_end = rgn->base + rgn->size;
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, max_addr - size - misalign);
+ ASSERT_LT(rgn_end, max_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to allocate a memory region, which spans over the
+ * min_addr and max_addr range:
+ *
+ * + +
+ * | +---------------+ |
+ * | | rgn | |
+ * +------+---------------+-------+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect to allocate a region that starts at min_addr and ends at
+ * max_addr, given that min_addr is aligned.
+ */
+static int alloc_nid_exact_address_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_1K;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t rgn_end;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+ rgn_end = rgn->base + rgn->size;
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, min_addr);
+ ASSERT_EQ(rgn_end, max_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, which can't fit into
+ * min_addr and max_addr range:
+ *
+ * + + +
+ * | +----------+-----+ |
+ * | | rgn + | |
+ * +--------+----------+-----+----+
+ * ^ ^ ^
+ * | | |
+ * Aligned | max_addr
+ * address |
+ * boundary min_add
+ *
+ * Expect to drop the lower limit and allocate a memory region which
+ * ends at max_addr (if the address is aligned).
+ */
+static int alloc_nid_top_down_narrow_range_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_256;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SZ_512;
+ max_addr = min_addr + SMP_CACHE_BYTES;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, max_addr - size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, which can't fit into
+ * min_addr and max_addr range, with the latter being too close to the beginning
+ * of the available memory:
+ *
+ * +-------------+
+ * | new |
+ * +-------------+
+ * + +
+ * | + |
+ * | | |
+ * +-------+--------------+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_addr
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_nid_low_max_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_1K;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = min_addr + SMP_CACHE_BYTES;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region within min_addr min_addr range,
+ * with min_addr being so close that it's next to an allocated region:
+ *
+ * + +
+ * | +--------+---------------|
+ * | | r1 | rgn |
+ * +-------+--------+---------------+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect a merge of both regions. Only the region size gets updated.
+ */
+static int alloc_nid_min_reserved_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_128;
+ phys_addr_t r2_size = SZ_64;
+ phys_addr_t total_size = r1_size + r2_size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t reserved_base;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ max_addr = memblock_end_of_DRAM();
+ min_addr = max_addr - r2_size;
+ reserved_base = min_addr - r1_size;
+
+ memblock_reserve(reserved_base, r1_size);
+
+ allocated_ptr = run_memblock_alloc_nid(r2_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, reserved_base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region within min_addr and max_addr,
+ * with max_addr being so close that it's next to an allocated region:
+ *
+ * + +
+ * | +-------------+--------|
+ * | | rgn | r1 |
+ * +----------+-------------+--------+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect a merge of regions. Only the region size gets updated.
+ */
+static int alloc_nid_max_reserved_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t r1_size = SZ_64;
+ phys_addr_t r2_size = SZ_128;
+ phys_addr_t total_size = r1_size + r2_size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ max_addr = memblock_end_of_DRAM() - r1_size;
+ min_addr = max_addr - r2_size;
+
+ memblock_reserve(max_addr, r1_size);
+
+ allocated_ptr = run_memblock_alloc_nid(r2_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r2_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, min_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range, when
+ * there are two reserved regions at the borders, with a gap big enough to fit
+ * a new region:
+ *
+ * + +
+ * | +--------+ +-------+------+ |
+ * | | r2 | | rgn | r1 | |
+ * +----+--------+---+-------+------+--+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect to merge the new region with r1. The second region does not get
+ * updated. The total size field gets updated.
+ */
+
+static int alloc_nid_top_down_reserved_with_space_check(void)
+{
+ struct memblock_region *rgn1 = &memblock.reserved.regions[1];
+ struct memblock_region *rgn2 = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t r3_size = SZ_64;
+ phys_addr_t gap_size = SMP_CACHE_BYTES;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES * 2;
+ r1.size = SMP_CACHE_BYTES;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (r3_size + gap_size + r2.size);
+
+ total_size = r1.size + r2.size + r3_size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(r3_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn1->size, r1.size + r3_size);
+ ASSERT_EQ(rgn1->base, max_addr - r3_size);
+
+ ASSERT_EQ(rgn2->size, r2.size);
+ ASSERT_EQ(rgn2->base, r2.base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range, when
+ * there are two reserved regions at the borders, with a gap of a size equal to
+ * the size of the new region:
+ *
+ * + +
+ * | +--------+--------+--------+ |
+ * | | r2 | r3 | r1 | |
+ * +-----+--------+--------+--------+-----+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect to merge all of the regions into one. The region counter and total
+ * size fields get updated.
+ */
+static int alloc_nid_reserved_full_merge_generic_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t r3_size = SZ_64;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES * 2;
+ r1.size = SMP_CACHE_BYTES;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (r3_size + r2.size);
+
+ total_size = r1.size + r2.size + r3_size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(r3_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, total_size);
+ ASSERT_EQ(rgn->base, r2.base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range, when
+ * there are two reserved regions at the borders, with a gap that can't fit
+ * a new region:
+ *
+ * + +
+ * | +----------+------+ +------+ |
+ * | | r3 | r2 | | r1 | |
+ * +--+----------+------+----+------+---+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_addr
+ *
+ * Expect to merge the new region with r2. The second region does not get
+ * updated. The total size counter gets updated.
+ */
+static int alloc_nid_top_down_reserved_no_space_check(void)
+{
+ struct memblock_region *rgn1 = &memblock.reserved.regions[1];
+ struct memblock_region *rgn2 = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t r3_size = SZ_256;
+ phys_addr_t gap_size = SMP_CACHE_BYTES;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES * 2;
+ r1.size = SMP_CACHE_BYTES;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (r2.size + gap_size);
+
+ total_size = r1.size + r2.size + r3_size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(r3_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn1->size, r1.size);
+ ASSERT_EQ(rgn1->base, r1.base);
+
+ ASSERT_EQ(rgn2->size, r2.size + r3_size);
+ ASSERT_EQ(rgn2->base, r2.base - r3_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range, but
+ * it's too narrow and everything else is reserved:
+ *
+ * +-----------+
+ * | new |
+ * +-----------+
+ * + +
+ * |--------------+ +----------|
+ * | r2 | | r1 |
+ * +--------------+------+----------+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_addr
+ *
+ * Expect no allocation to happen.
+ */
+
+static int alloc_nid_reserved_all_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t r3_size = SZ_256;
+ phys_addr_t gap_size = SMP_CACHE_BYTES;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES;
+ r1.size = SMP_CACHE_BYTES;
+
+ r2.size = MEM_SIZE - (r1.size + gap_size);
+ r2.base = memblock_start_of_DRAM();
+
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(r3_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, where max_addr is
+ * bigger than the end address of the available memory. Expect to allocate
+ * a region that ends before the end of the memory.
+ */
+static int alloc_nid_top_down_cap_max_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_256;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_end_of_DRAM() - SZ_1K;
+ max_addr = memblock_end_of_DRAM() + SZ_256;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, where min_addr is
+ * smaller than the start address of the available memory. Expect to allocate
+ * a region that ends before the end of the memory.
+ */
+static int alloc_nid_top_down_cap_min_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_1K;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() - SZ_256;
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to allocate a memory region within min_addr and
+ * max_addr range:
+ *
+ * + +
+ * | +-----------+ | |
+ * | | rgn | | |
+ * +----+-----------+-----------+------+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect to allocate a region that ends before max_addr.
+ */
+static int alloc_nid_bottom_up_simple_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_128;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t rgn_end;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES * 2;
+ max_addr = min_addr + SZ_512;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+ rgn_end = rgn->base + rgn->size;
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, min_addr);
+ ASSERT_LT(rgn_end, max_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to allocate a memory region within min_addr and
+ * max_addr range, where the start address is misaligned:
+ *
+ * + +
+ * | + +-----------+ + |
+ * | | | rgn | | |
+ * +-----+---+-----------+-----+-----+
+ * ^ ^----. ^
+ * | | |
+ * min_add | max_addr
+ * |
+ * Aligned address
+ * boundary
+ *
+ * Expect to allocate an aligned region that ends before max_addr.
+ */
+static int alloc_nid_bottom_up_start_misaligned_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_128;
+ phys_addr_t misalign = SZ_2;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t rgn_end;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + misalign;
+ max_addr = min_addr + SZ_512;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+ rgn_end = rgn->base + rgn->size;
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, min_addr + (SMP_CACHE_BYTES - misalign));
+ ASSERT_LT(rgn_end, max_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, which can't fit into min_addr
+ * and max_addr range:
+ *
+ * + +
+ * |---------+ + + |
+ * | rgn | | | |
+ * +---------+---------+----+------+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_add
+ *
+ * Expect to drop the lower limit and allocate a memory region which
+ * starts at the beginning of the available memory.
+ */
+static int alloc_nid_bottom_up_narrow_range_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_256;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SZ_512;
+ max_addr = min_addr + SMP_CACHE_BYTES;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range, when
+ * there are two reserved regions at the borders, with a gap big enough to fit
+ * a new region:
+ *
+ * + +
+ * | +--------+-------+ +------+ |
+ * | | r2 | rgn | | r1 | |
+ * +----+--------+-------+---+------+--+
+ * ^ ^
+ * | |
+ * min_addr max_addr
+ *
+ * Expect to merge the new region with r2. The second region does not get
+ * updated. The total size field gets updated.
+ */
+
+static int alloc_nid_bottom_up_reserved_with_space_check(void)
+{
+ struct memblock_region *rgn1 = &memblock.reserved.regions[1];
+ struct memblock_region *rgn2 = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t r3_size = SZ_64;
+ phys_addr_t gap_size = SMP_CACHE_BYTES;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES * 2;
+ r1.size = SMP_CACHE_BYTES;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (r3_size + gap_size + r2.size);
+
+ total_size = r1.size + r2.size + r3_size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(r3_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn1->size, r1.size);
+ ASSERT_EQ(rgn1->base, max_addr);
+
+ ASSERT_EQ(rgn2->size, r2.size + r3_size);
+ ASSERT_EQ(rgn2->base, r2.base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range, when
+ * there are two reserved regions at the borders, with a gap of a size equal to
+ * the size of the new region:
+ *
+ * + +
+ * |----------+ +------+ +----+ |
+ * | r3 | | r2 | | r1 | |
+ * +----------+----+------+---+----+--+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_addr
+ *
+ * Expect to drop the lower limit and allocate memory at the beginning of the
+ * available memory. The region counter and total size fields get updated.
+ * Other regions are not modified.
+ */
+
+static int alloc_nid_bottom_up_reserved_no_space_check(void)
+{
+ struct memblock_region *rgn1 = &memblock.reserved.regions[2];
+ struct memblock_region *rgn2 = &memblock.reserved.regions[1];
+ struct memblock_region *rgn3 = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t r3_size = SZ_256;
+ phys_addr_t gap_size = SMP_CACHE_BYTES;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ r1.base = memblock_end_of_DRAM() - SMP_CACHE_BYTES * 2;
+ r1.size = SMP_CACHE_BYTES;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (r2.size + gap_size);
+
+ total_size = r1.size + r2.size + r3_size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(r3_size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, r3_size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn3->size, r3_size);
+ ASSERT_EQ(rgn3->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(rgn2->size, r2.size);
+ ASSERT_EQ(rgn2->base, r2.base);
+
+ ASSERT_EQ(rgn1->size, r1.size);
+ ASSERT_EQ(rgn1->base, r1.base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 3);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, where max_addr is
+ * bigger than the end address of the available memory. Expect to allocate
+ * a region that starts at the min_addr.
+ */
+static int alloc_nid_bottom_up_cap_max_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_256;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM() + SZ_1K;
+ max_addr = memblock_end_of_DRAM() + SZ_256;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, min_addr);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region, where min_addr is
+ * smaller than the start address of the available memory. Expect to allocate
+ * a region at the beginning of the available memory.
+ */
+static int alloc_nid_bottom_up_cap_min_check(void)
+{
+ struct memblock_region *rgn = &memblock.reserved.regions[0];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_1K;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_memblock();
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM() - SZ_256;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(rgn->size, size);
+ ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/* Test case wrappers for range tests */
+static int alloc_nid_simple_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_simple_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_simple_check();
+
+ return 0;
+}
+
+static int alloc_nid_misaligned_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_end_misaligned_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_start_misaligned_check();
+
+ return 0;
+}
+
+static int alloc_nid_narrow_range_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_narrow_range_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_narrow_range_check();
+
+ return 0;
+}
+
+static int alloc_nid_reserved_with_space_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_reserved_with_space_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_reserved_with_space_check();
+
+ return 0;
+}
+
+static int alloc_nid_reserved_no_space_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_reserved_no_space_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_reserved_no_space_check();
+
+ return 0;
+}
+
+static int alloc_nid_cap_max_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_cap_max_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_cap_max_check();
+
+ return 0;
+}
+
+static int alloc_nid_cap_min_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_cap_min_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_cap_min_check();
+
+ return 0;
+}
+
+static int alloc_nid_min_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_min_reserved_generic_check);
+ run_bottom_up(alloc_nid_min_reserved_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_max_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_max_reserved_generic_check);
+ run_bottom_up(alloc_nid_max_reserved_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_exact_address_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_exact_address_generic_check);
+ run_bottom_up(alloc_nid_exact_address_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_reserved_full_merge_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_reserved_full_merge_generic_check);
+ run_bottom_up(alloc_nid_reserved_full_merge_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_reserved_all_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_reserved_all_generic_check);
+ run_bottom_up(alloc_nid_reserved_all_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_low_max_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_low_max_generic_check);
+ run_bottom_up(alloc_nid_low_max_generic_check);
+
+ return 0;
+}
+
+static int memblock_alloc_nid_range_checks(void)
+{
+ test_print("Running %s range tests...\n",
+ get_memblock_alloc_nid_name(alloc_nid_test_flags));
+
+ alloc_nid_simple_check();
+ alloc_nid_misaligned_check();
+ alloc_nid_narrow_range_check();
+ alloc_nid_reserved_with_space_check();
+ alloc_nid_reserved_no_space_check();
+ alloc_nid_cap_max_check();
+ alloc_nid_cap_min_check();
+
+ alloc_nid_min_reserved_check();
+ alloc_nid_max_reserved_check();
+ alloc_nid_exact_address_check();
+ alloc_nid_reserved_full_merge_check();
+ alloc_nid_reserved_all_check();
+ alloc_nid_low_max_check();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * has enough memory to allocate a region of the requested size.
+ * Expect to allocate an aligned region at the end of the requested node.
+ */
+static int alloc_nid_top_down_numa_simple_check(void)
+{
+ int nid_req = 3;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * does not have enough memory to allocate a region of the requested size:
+ *
+ * | +-----+ +------------------+ |
+ * | | req | | expected | |
+ * +---+-----+----------+------------------+-----+
+ *
+ * | +---------+ |
+ * | | rgn | |
+ * +-----------------------------+---------+-----+
+ *
+ * Expect to allocate an aligned region at the end of the last node that has
+ * enough memory (in this case, nid = 6) after falling back to NUMA_NO_NODE.
+ */
+static int alloc_nid_top_down_numa_small_node_check(void)
+{
+ int nid_req = 1;
+ int nid_exp = 6;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_2 * req_node->size;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(exp_node) - size);
+ ASSERT_LE(exp_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is fully reserved:
+ *
+ * | +---------+ +------------------+ |
+ * | |requested| | expected | |
+ * +--------------+---------+------------+------------------+-----+
+ *
+ * | +---------+ +---------+ |
+ * | | reserved| | new | |
+ * +--------------+---------+---------------------+---------+-----+
+ *
+ * Expect to allocate an aligned region at the end of the last node that is
+ * large enough and has enough unreserved memory (in this case, nid = 6) after
+ * falling back to NUMA_NO_NODE. The region count and total size get updated.
+ */
+static int alloc_nid_top_down_numa_node_reserved_check(void)
+{
+ int nid_req = 2;
+ int nid_exp = 6;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[1];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = req_node->size;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(req_node->base, req_node->size);
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(exp_node) - size);
+ ASSERT_LE(exp_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, size + req_node->size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved but has enough memory for the allocated region:
+ *
+ * | +---------------------------------------+ |
+ * | | requested | |
+ * +-----------+---------------------------------------+----------+
+ *
+ * | +------------------+ +-----+ |
+ * | | reserved | | new | |
+ * +-----------+------------------+--------------+-----+----------+
+ *
+ * Expect to allocate an aligned region at the end of the requested node. The
+ * region count and total size get updated.
+ */
+static int alloc_nid_top_down_numa_part_reserved_check(void)
+{
+ int nid_req = 4;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[1];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_8, req_node->size);
+ r1.base = req_node->base;
+ r1.size = req_node->size / SZ_2;
+ size = r1.size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, size + r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved and does not have enough contiguous memory for the
+ * allocated region:
+ *
+ * | +-----------------------+ +----------------------|
+ * | | requested | | expected |
+ * +-----------+-----------------------+---------+----------------------+
+ *
+ * | +----------+ +-----------|
+ * | | reserved | | new |
+ * +-----------------+----------+---------------------------+-----------+
+ *
+ * Expect to allocate an aligned region at the end of the last node that is
+ * large enough and has enough unreserved memory (in this case,
+ * nid = NUMA_NODES - 1) after falling back to NUMA_NO_NODE. The region count
+ * and total size get updated.
+ */
+static int alloc_nid_top_down_numa_part_reserved_fallback_check(void)
+{
+ int nid_req = 4;
+ int nid_exp = NUMA_NODES - 1;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[1];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_2;
+ r1.base = req_node->base + (size / SZ_2);
+ r1.size = size;
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(exp_node) - size);
+ ASSERT_LE(exp_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, size + r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the first
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +-----------------------+-----------+ |
+ * | | requested | node3 | |
+ * +-----------+-----------------------+-----------+--------------+
+ * + +
+ * | +-----------+ |
+ * | | rgn | |
+ * +-----------------------+-----------+--------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that ends at
+ * the end of the requested node.
+ */
+static int alloc_nid_top_down_numa_split_range_low_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t req_node_end;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ req_node_end = region_end(req_node);
+ min_addr = req_node_end - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node_end - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the second
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +--------------------------+---------+ |
+ * | | expected |requested| |
+ * +------+--------------------------+---------+----------------+
+ * + +
+ * | +---------+ |
+ * | | rgn | |
+ * +-----------------------+---------+--------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that
+ * ends at the end of the first node that overlaps with the range.
+ */
+static int alloc_nid_top_down_numa_split_range_high_check(void)
+{
+ int nid_req = 3;
+ int nid_exp = nid_req - 1;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t exp_node_end;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ exp_node_end = region_end(exp_node);
+ min_addr = exp_node_end - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, exp_node_end - size);
+ ASSERT_LE(exp_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the requested
+ * node ends before min_addr:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +---------------+ +-------------+---------+ |
+ * | | requested | | node1 | node2 | |
+ * +----+---------------+--------+-------------+---------+----------+
+ * + +
+ * | +---------+ |
+ * | | rgn | |
+ * +----------+---------+-------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that ends at
+ * the end of the requested node.
+ */
+static int alloc_nid_top_down_numa_no_overlap_split_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *node2 = &memblock.memory.regions[6];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_512;
+ min_addr = node2->base - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, region_end(req_node) - size);
+ ASSERT_LE(req_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node ends
+ * before min_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * |-----------+ +----------+----...----+----------+ |
+ * | requested | | min node | ... | max node | |
+ * +-----------+-----------+----------+----...----+----------+------+
+ * + +
+ * | +-----+ |
+ * | | rgn | |
+ * +---------------------------------------------------+-----+------+
+ *
+ * Expect to allocate a memory region at the end of the final node in
+ * the range after falling back to NUMA_NO_NODE.
+ */
+static int alloc_nid_top_down_numa_no_overlap_low_check(void)
+{
+ int nid_req = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, max_addr - size);
+ ASSERT_LE(max_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node starts
+ * after max_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +----------+----...----+----------+ +-----------+ |
+ * | | min node | ... | max node | | requested | |
+ * +-----+----------+----...----+----------+--------+-----------+---+
+ * + +
+ * | +-----+ |
+ * | | rgn | |
+ * +---------------------------------+-----+------------------------+
+ *
+ * Expect to allocate a memory region at the end of the final node in
+ * the range after falling back to NUMA_NO_NODE.
+ */
+static int alloc_nid_top_down_numa_no_overlap_high_check(void)
+{
+ int nid_req = 7;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, max_addr - size);
+ ASSERT_LE(max_node->base, new_rgn->base);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * has enough memory to allocate a region of the requested size.
+ * Expect to allocate an aligned region at the beginning of the requested node.
+ */
+static int alloc_nid_bottom_up_numa_simple_check(void)
+{
+ int nid_req = 3;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * does not have enough memory to allocate a region of the requested size:
+ *
+ * |----------------------+-----+ |
+ * | expected | req | |
+ * +----------------------+-----+----------------+
+ *
+ * |---------+ |
+ * | rgn | |
+ * +---------+-----------------------------------+
+ *
+ * Expect to allocate an aligned region at the beginning of the first node that
+ * has enough memory (in this case, nid = 0) after falling back to NUMA_NO_NODE.
+ */
+static int alloc_nid_bottom_up_numa_small_node_check(void)
+{
+ int nid_req = 1;
+ int nid_exp = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_2 * req_node->size;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, exp_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(exp_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is fully reserved:
+ *
+ * |----------------------+ +-----------+ |
+ * | expected | | requested | |
+ * +----------------------+-----+-----------+--------------------+
+ *
+ * |-----------+ +-----------+ |
+ * | new | | reserved | |
+ * +-----------+----------------+-----------+--------------------+
+ *
+ * Expect to allocate an aligned region at the beginning of the first node that
+ * is large enough and has enough unreserved memory (in this case, nid = 0)
+ * after falling back to NUMA_NO_NODE. The region count and total size get
+ * updated.
+ */
+static int alloc_nid_bottom_up_numa_node_reserved_check(void)
+{
+ int nid_req = 2;
+ int nid_exp = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = req_node->size;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(req_node->base, req_node->size);
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, exp_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(exp_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, size + req_node->size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved but has enough memory for the allocated region:
+ *
+ * | +---------------------------------------+ |
+ * | | requested | |
+ * +-----------+---------------------------------------+---------+
+ *
+ * | +------------------+-----+ |
+ * | | reserved | new | |
+ * +-----------+------------------+-----+------------------------+
+ *
+ * Expect to allocate an aligned region in the requested node that merges with
+ * the existing reserved region. The total size gets updated.
+ */
+static int alloc_nid_bottom_up_numa_part_reserved_check(void)
+{
+ int nid_req = 4;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t total_size;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_8, req_node->size);
+ r1.base = req_node->base;
+ r1.size = req_node->size / SZ_2;
+ size = r1.size / SZ_4;
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+ total_size = size + r1.size;
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, total_size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * is partially reserved and does not have enough contiguous memory for the
+ * allocated region:
+ *
+ * |----------------------+ +-----------------------+ |
+ * | expected | | requested | |
+ * +----------------------+-------+-----------------------+---------+
+ *
+ * |-----------+ +----------+ |
+ * | new | | reserved | |
+ * +-----------+------------------------+----------+----------------+
+ *
+ * Expect to allocate an aligned region at the beginning of the first
+ * node that is large enough and has enough unreserved memory (in this case,
+ * nid = 0) after falling back to NUMA_NO_NODE. The region count and total size
+ * get updated.
+ */
+static int alloc_nid_bottom_up_numa_part_reserved_fallback_check(void)
+{
+ int nid_req = 4;
+ int nid_exp = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ struct region r1;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ ASSERT_LE(SZ_4, req_node->size);
+ size = req_node->size / SZ_2;
+ r1.base = req_node->base + (size / SZ_2);
+ r1.size = size;
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ memblock_reserve(r1.base, r1.size);
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, exp_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(exp_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, size + r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the first
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +-----------------------+-----------+ |
+ * | | requested | node3 | |
+ * +-----------+-----------------------+-----------+--------------+
+ * + +
+ * | +-----------+ |
+ * | | rgn | |
+ * +-----------+-----------+--------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region at the beginning
+ * of the requested node.
+ */
+static int alloc_nid_bottom_up_numa_split_range_low_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t req_node_end;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ req_node_end = region_end(req_node);
+ min_addr = req_node_end - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), req_node_end);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the second
+ * node is the requested node:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * |------------------+ +----------------------+---------+ |
+ * | expected | | previous |requested| |
+ * +------------------+--------+----------------------+---------+------+
+ * + +
+ * |---------+ |
+ * | rgn | |
+ * +---------+---------------------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region at the beginning
+ * of the first node that has enough memory.
+ */
+static int alloc_nid_bottom_up_numa_split_range_high_check(void)
+{
+ int nid_req = 3;
+ int nid_exp = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *exp_node = &memblock.memory.regions[nid_exp];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_512;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+ phys_addr_t exp_node_end;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ exp_node_end = region_end(req_node);
+ min_addr = req_node->base - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, exp_node->base);
+ ASSERT_LE(region_end(new_rgn), exp_node_end);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region that spans over the min_addr
+ * and max_addr range and overlaps with two different nodes, where the requested
+ * node ends before min_addr:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +---------------+ +-------------+---------+ |
+ * | | requested | | node1 | node2 | |
+ * +----+---------------+--------+-------------+---------+---------+
+ * + +
+ * | +---------+ |
+ * | | rgn | |
+ * +----+---------+------------------------------------------------+
+ *
+ * Expect to drop the lower limit and allocate a memory region that starts at
+ * the beginning of the requested node.
+ */
+static int alloc_nid_bottom_up_numa_no_overlap_split_check(void)
+{
+ int nid_req = 2;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *node2 = &memblock.memory.regions[6];
+ void *allocated_ptr = NULL;
+ phys_addr_t size;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ size = SZ_512;
+ min_addr = node2->base - SZ_256;
+ max_addr = min_addr + size;
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(new_rgn), region_end(req_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node ends
+ * before min_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * |-----------+ +----------+----...----+----------+ |
+ * | requested | | min node | ... | max node | |
+ * +-----------+-----------+----------+----...----+----------+------+
+ * + +
+ * | +-----+ |
+ * | | rgn | |
+ * +-----------------------+-----+----------------------------------+
+ *
+ * Expect to allocate a memory region at the beginning of the first node
+ * in the range after falling back to NUMA_NO_NODE.
+ */
+static int alloc_nid_bottom_up_numa_no_overlap_low_check(void)
+{
+ int nid_req = 0;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, min_addr);
+ ASSERT_LE(region_end(new_rgn), region_end(min_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range when
+ * the requested node and the range do not overlap, and requested node starts
+ * after max_addr. The range overlaps with multiple nodes along node
+ * boundaries:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +----------+----...----+----------+ +---------+ |
+ * | | min node | ... | max node | |requested| |
+ * +-----+----------+----...----+----------+---------+---------+---+
+ * + +
+ * | +-----+ |
+ * | | rgn | |
+ * +-----+-----+---------------------------------------------------+
+ *
+ * Expect to allocate a memory region at the beginning of the first node
+ * in the range after falling back to NUMA_NO_NODE.
+ */
+static int alloc_nid_bottom_up_numa_no_overlap_high_check(void)
+{
+ int nid_req = 7;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *min_node = &memblock.memory.regions[2];
+ struct memblock_region *max_node = &memblock.memory.regions[5];
+ void *allocated_ptr = NULL;
+ phys_addr_t size = SZ_64;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = min_node->base;
+ max_addr = region_end(max_node);
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, size);
+ ASSERT_EQ(new_rgn->base, min_addr);
+ ASSERT_LE(region_end(new_rgn), region_end(min_node));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate a memory region in a specific NUMA node that
+ * does not have enough memory to allocate a region of the requested size.
+ * Additionally, none of the nodes have enough memory to allocate the region:
+ *
+ * +-----------------------------------+
+ * | new |
+ * +-----------------------------------+
+ * |-------+-------+-------+-------+-------+-------+-------+-------|
+ * | node0 | node1 | node2 | node3 | node4 | node5 | node6 | node7 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_nid_numa_large_region_generic_check(void)
+{
+ int nid_req = 3;
+ void *allocated_ptr = NULL;
+ phys_addr_t size = MEM_SIZE / SZ_2;
+ phys_addr_t min_addr;
+ phys_addr_t max_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ min_addr = memblock_start_of_DRAM();
+ max_addr = memblock_end_of_DRAM();
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_addr range when
+ * there are two reserved regions at the borders. The requested node starts at
+ * min_addr and ends at max_addr and is the same size as the region to be
+ * allocated:
+ *
+ * min_addr
+ * | max_addr
+ * | |
+ * v v
+ * | +-----------+-----------------------+-----------------------|
+ * | | node5 | requested | node7 |
+ * +------+-----------+-----------------------+-----------------------+
+ * + +
+ * | +----+-----------------------+----+ |
+ * | | r2 | new | r1 | |
+ * +-------------+----+-----------------------+----+------------------+
+ *
+ * Expect to merge all of the regions into one. The region counter and total
+ * size fields get updated.
+ */
+static int alloc_nid_numa_reserved_full_merge_generic_check(void)
+{
+ int nid_req = 6;
+ int nid_next = nid_req + 1;
+ struct memblock_region *new_rgn = &memblock.reserved.regions[0];
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+ struct memblock_region *next_node = &memblock.memory.regions[nid_next];
+ void *allocated_ptr = NULL;
+ struct region r1, r2;
+ phys_addr_t size = req_node->size;
+ phys_addr_t total_size;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ r1.base = next_node->base;
+ r1.size = SZ_128;
+
+ r2.size = SZ_128;
+ r2.base = r1.base - (size + r2.size);
+
+ total_size = r1.size + r2.size + size;
+ min_addr = r2.base + r2.size;
+ max_addr = r1.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+ assert_mem_content(allocated_ptr, size, alloc_nid_test_flags);
+
+ ASSERT_EQ(new_rgn->size, total_size);
+ ASSERT_EQ(new_rgn->base, r2.base);
+
+ ASSERT_LE(new_rgn->base, req_node->base);
+ ASSERT_LE(region_end(req_node), region_end(new_rgn));
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to allocate memory within min_addr and max_add range,
+ * where the total range can fit the region, but it is split between two nodes
+ * and everything else is reserved. Additionally, nid is set to NUMA_NO_NODE
+ * instead of requesting a specific node:
+ *
+ * +-----------+
+ * | new |
+ * +-----------+
+ * | +---------------------+-----------|
+ * | | prev node | next node |
+ * +------+---------------------+-----------+
+ * + +
+ * |----------------------+ +-----|
+ * | r1 | | r2 |
+ * +----------------------+-----------+-----+
+ * ^ ^
+ * | |
+ * | max_addr
+ * |
+ * min_addr
+ *
+ * Expect no allocation to happen.
+ */
+static int alloc_nid_numa_split_all_reserved_generic_check(void)
+{
+ void *allocated_ptr = NULL;
+ struct memblock_region *next_node = &memblock.memory.regions[7];
+ struct region r1, r2;
+ phys_addr_t size = SZ_256;
+ phys_addr_t max_addr;
+ phys_addr_t min_addr;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ r2.base = next_node->base + SZ_128;
+ r2.size = memblock_end_of_DRAM() - r2.base;
+
+ r1.size = MEM_SIZE - (r2.size + size);
+ r1.base = memblock_start_of_DRAM();
+
+ min_addr = r1.base + r1.size;
+ max_addr = r2.base;
+
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ allocated_ptr = run_memblock_alloc_nid(size, SMP_CACHE_BYTES,
+ min_addr, max_addr,
+ NUMA_NO_NODE);
+
+ ASSERT_EQ(allocated_ptr, NULL);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to allocate a memory region through the
+ * memblock_alloc_node() on a NUMA node with id `nid`. Expected to have the
+ * correct NUMA node set for the new region.
+ */
+static int alloc_node_on_correct_nid(void)
+{
+ int nid_req = 2;
+ void *allocated_ptr = NULL;
+#ifdef CONFIG_NUMA
+ struct memblock_region *req_node = &memblock.memory.regions[nid_req];
+#endif
+ phys_addr_t size = SZ_512;
+
+ PREFIX_PUSH();
+ setup_numa_memblock(node_fractions);
+
+ allocated_ptr = memblock_alloc_node(size, SMP_CACHE_BYTES, nid_req);
+
+ ASSERT_NE(allocated_ptr, NULL);
+#ifdef CONFIG_NUMA
+ ASSERT_EQ(nid_req, req_node->nid);
+#endif
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/* Test case wrappers for NUMA tests */
+static int alloc_nid_numa_simple_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_simple_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_simple_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_small_node_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_small_node_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_small_node_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_node_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_node_reserved_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_node_reserved_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_part_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_part_reserved_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_part_reserved_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_part_reserved_fallback_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_part_reserved_fallback_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_part_reserved_fallback_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_split_range_low_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_split_range_low_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_split_range_low_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_split_range_high_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_split_range_high_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_split_range_high_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_no_overlap_split_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_no_overlap_split_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_no_overlap_split_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_no_overlap_low_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_no_overlap_low_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_no_overlap_low_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_no_overlap_high_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ memblock_set_bottom_up(false);
+ alloc_nid_top_down_numa_no_overlap_high_check();
+ memblock_set_bottom_up(true);
+ alloc_nid_bottom_up_numa_no_overlap_high_check();
+
+ return 0;
+}
+
+static int alloc_nid_numa_large_region_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_numa_large_region_generic_check);
+ run_bottom_up(alloc_nid_numa_large_region_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_numa_reserved_full_merge_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_numa_reserved_full_merge_generic_check);
+ run_bottom_up(alloc_nid_numa_reserved_full_merge_generic_check);
+
+ return 0;
+}
+
+static int alloc_nid_numa_split_all_reserved_check(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_nid_numa_split_all_reserved_generic_check);
+ run_bottom_up(alloc_nid_numa_split_all_reserved_generic_check);
+
+ return 0;
+}
+
+static int alloc_node_numa_on_correct_nid(void)
+{
+ test_print("\tRunning %s...\n", __func__);
+ run_top_down(alloc_node_on_correct_nid);
+ run_bottom_up(alloc_node_on_correct_nid);
+
+ return 0;
+}
+
+int __memblock_alloc_nid_numa_checks(void)
+{
+ test_print("Running %s NUMA tests...\n",
+ get_memblock_alloc_nid_name(alloc_nid_test_flags));
+
+ alloc_nid_numa_simple_check();
+ alloc_nid_numa_small_node_check();
+ alloc_nid_numa_node_reserved_check();
+ alloc_nid_numa_part_reserved_check();
+ alloc_nid_numa_part_reserved_fallback_check();
+ alloc_nid_numa_split_range_low_check();
+ alloc_nid_numa_split_range_high_check();
+
+ alloc_nid_numa_no_overlap_split_check();
+ alloc_nid_numa_no_overlap_low_check();
+ alloc_nid_numa_no_overlap_high_check();
+ alloc_nid_numa_large_region_check();
+ alloc_nid_numa_reserved_full_merge_check();
+ alloc_nid_numa_split_all_reserved_check();
+
+ alloc_node_numa_on_correct_nid();
+
+ return 0;
+}
+
+static int memblock_alloc_nid_checks_internal(int flags)
+{
+ alloc_nid_test_flags = flags;
+
+ prefix_reset();
+ prefix_push(get_memblock_alloc_nid_name(flags));
+
+ reset_memblock_attributes();
+ dummy_physical_memory_init();
+
+ memblock_alloc_nid_range_checks();
+ memblock_alloc_nid_numa_checks();
+
+ dummy_physical_memory_cleanup();
+
+ prefix_pop();
+
+ return 0;
+}
+
+int memblock_alloc_nid_checks(void)
+{
+ memblock_alloc_nid_checks_internal(TEST_F_NONE);
+ memblock_alloc_nid_checks_internal(TEST_F_RAW);
+
+ return 0;
+}
+
+int memblock_alloc_exact_nid_range_checks(void)
+{
+ alloc_nid_test_flags = (TEST_F_RAW | TEST_F_EXACT);
+
+ memblock_alloc_nid_range_checks();
+
+ return 0;
+}
diff --git a/tools/testing/memblock/tests/alloc_nid_api.h b/tools/testing/memblock/tests/alloc_nid_api.h
new file mode 100644
index 0000000000..2b8cabacac
--- /dev/null
+++ b/tools/testing/memblock/tests/alloc_nid_api.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _MEMBLOCK_ALLOC_NID_H
+#define _MEMBLOCK_ALLOC_NID_H
+
+#include "common.h"
+
+int memblock_alloc_nid_checks(void);
+int memblock_alloc_exact_nid_range_checks(void);
+int __memblock_alloc_nid_numa_checks(void);
+
+#ifdef CONFIG_NUMA
+static inline int memblock_alloc_nid_numa_checks(void)
+{
+ __memblock_alloc_nid_numa_checks();
+ return 0;
+}
+
+#else
+static inline int memblock_alloc_nid_numa_checks(void)
+{
+ return 0;
+}
+
+#endif /* CONFIG_NUMA */
+
+#endif
diff --git a/tools/testing/memblock/tests/basic_api.c b/tools/testing/memblock/tests/basic_api.c
new file mode 100644
index 0000000000..57bf2688ed
--- /dev/null
+++ b/tools/testing/memblock/tests/basic_api.c
@@ -0,0 +1,2143 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "basic_api.h"
+#include <string.h>
+#include <linux/memblock.h>
+
+#define EXPECTED_MEMBLOCK_REGIONS 128
+#define FUNC_ADD "memblock_add"
+#define FUNC_RESERVE "memblock_reserve"
+#define FUNC_REMOVE "memblock_remove"
+#define FUNC_FREE "memblock_free"
+#define FUNC_TRIM "memblock_trim_memory"
+
+static int memblock_initialization_check(void)
+{
+ PREFIX_PUSH();
+
+ ASSERT_NE(memblock.memory.regions, NULL);
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.max, EXPECTED_MEMBLOCK_REGIONS);
+ ASSERT_EQ(strcmp(memblock.memory.name, "memory"), 0);
+
+ ASSERT_NE(memblock.reserved.regions, NULL);
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.memory.max, EXPECTED_MEMBLOCK_REGIONS);
+ ASSERT_EQ(strcmp(memblock.reserved.name, "reserved"), 0);
+
+ ASSERT_EQ(memblock.bottom_up, false);
+ ASSERT_EQ(memblock.current_limit, MEMBLOCK_ALLOC_ANYWHERE);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that adds a memory block of a specified base address
+ * and size to the collection of available memory regions (memblock.memory).
+ * Expect to create a new entry. The region counter and total memory get
+ * updated.
+ */
+static int memblock_add_simple_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r = {
+ .base = SZ_1G,
+ .size = SZ_4M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r.base, r.size);
+
+ ASSERT_EQ(rgn->base, r.base);
+ ASSERT_EQ(rgn->size, r.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, r.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that adds a memory block of a specified base address, size,
+ * NUMA node and memory flags to the collection of available memory regions.
+ * Expect to create a new entry. The region counter and total memory get
+ * updated.
+ */
+static int memblock_add_node_simple_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r = {
+ .base = SZ_1M,
+ .size = SZ_16M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add_node(r.base, r.size, 1, MEMBLOCK_HOTPLUG);
+
+ ASSERT_EQ(rgn->base, r.base);
+ ASSERT_EQ(rgn->size, r.size);
+#ifdef CONFIG_NUMA
+ ASSERT_EQ(rgn->nid, 1);
+#endif
+ ASSERT_EQ(rgn->flags, MEMBLOCK_HOTPLUG);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, r.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to add two memory blocks that don't overlap with one
+ * another:
+ *
+ * | +--------+ +--------+ |
+ * | | r1 | | r2 | |
+ * +--------+--------+--------+--------+--+
+ *
+ * Expect to add two correctly initialized entries to the collection of
+ * available memory regions (memblock.memory). The total size and
+ * region counter fields get updated.
+ */
+static int memblock_add_disjoint_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+
+ rgn1 = &memblock.memory.regions[0];
+ rgn2 = &memblock.memory.regions[1];
+
+ struct region r1 = {
+ .base = SZ_1G,
+ .size = SZ_8K
+ };
+ struct region r2 = {
+ .base = SZ_1G + SZ_16K,
+ .size = SZ_8K
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, r1.size);
+
+ ASSERT_EQ(rgn2->base, r2.base);
+ ASSERT_EQ(rgn2->size, r2.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 2);
+ ASSERT_EQ(memblock.memory.total_size, r1.size + r2.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to add two memory blocks r1 and r2, where r2 overlaps
+ * with the beginning of r1 (that is r1.base < r2.base + r2.size):
+ *
+ * | +----+----+------------+ |
+ * | | |r2 | r1 | |
+ * +----+----+----+------------+----------+
+ * ^ ^
+ * | |
+ * | r1.base
+ * |
+ * r2.base
+ *
+ * Expect to merge the two entries into one region that starts at r2.base
+ * and has size of two regions minus their intersection. The total size of
+ * the available memory is updated, and the region counter stays the same.
+ */
+static int memblock_add_overlap_top_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_512M,
+ .size = SZ_1G
+ };
+ struct region r2 = {
+ .base = SZ_256M,
+ .size = SZ_512M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = (r1.base - r2.base) + r1.size;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r2.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to add two memory blocks r1 and r2, where r2 overlaps
+ * with the end of r1 (that is r2.base < r1.base + r1.size):
+ *
+ * | +--+------+----------+ |
+ * | | | r1 | r2 | |
+ * +--+--+------+----------+--------------+
+ * ^ ^
+ * | |
+ * | r2.base
+ * |
+ * r1.base
+ *
+ * Expect to merge the two entries into one region that starts at r1.base
+ * and has size of two regions minus their intersection. The total size of
+ * the available memory is updated, and the region counter stays the same.
+ */
+static int memblock_add_overlap_bottom_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_128M,
+ .size = SZ_512M
+ };
+ struct region r2 = {
+ .base = SZ_256M,
+ .size = SZ_1G
+ };
+
+ PREFIX_PUSH();
+
+ total_size = (r2.base - r1.base) + r2.size;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to add two memory blocks r1 and r2, where r2 is
+ * within the range of r1 (that is r1.base < r2.base &&
+ * r2.base + r2.size < r1.base + r1.size):
+ *
+ * | +-------+--+-----------------------+
+ * | | |r2| r1 |
+ * +---+-------+--+-----------------------+
+ * ^
+ * |
+ * r1.base
+ *
+ * Expect to merge two entries into one region that stays the same.
+ * The counter and total size of available memory are not updated.
+ */
+static int memblock_add_within_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_8M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_16M,
+ .size = SZ_1M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, r1.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to add the same memory block twice. Expect
+ * the counter and total size of available memory to not be updated.
+ */
+static int memblock_add_twice_check(void)
+{
+ struct region r = {
+ .base = SZ_16K,
+ .size = SZ_2M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+
+ memblock_add(r.base, r.size);
+ memblock_add(r.base, r.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, r.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to add two memory blocks that don't overlap with one
+ * another and then add a third memory block in the space between the first two:
+ *
+ * | +--------+--------+--------+ |
+ * | | r1 | r3 | r2 | |
+ * +--------+--------+--------+--------+--+
+ *
+ * Expect to merge the three entries into one region that starts at r1.base
+ * and has size of r1.size + r2.size + r3.size. The region counter and total
+ * size of the available memory are updated.
+ */
+static int memblock_add_between_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_1G,
+ .size = SZ_8K
+ };
+ struct region r2 = {
+ .base = SZ_1G + SZ_16K,
+ .size = SZ_8K
+ };
+ struct region r3 = {
+ .base = SZ_1G + SZ_8K,
+ .size = SZ_8K
+ };
+
+ PREFIX_PUSH();
+
+ total_size = r1.size + r2.size + r3.size;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+ memblock_add(r3.base, r3.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to add a memory block r when r extends past
+ * PHYS_ADDR_MAX:
+ *
+ * +--------+
+ * | r |
+ * +--------+
+ * | +----+
+ * | | rgn|
+ * +----------------------------+----+
+ *
+ * Expect to add a memory block of size PHYS_ADDR_MAX - r.base. Expect the
+ * total size of available memory and the counter to be updated.
+ */
+static int memblock_add_near_max_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r = {
+ .base = PHYS_ADDR_MAX - SZ_1M,
+ .size = SZ_2M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = PHYS_ADDR_MAX - r.base;
+
+ reset_memblock_regions();
+ memblock_add(r.base, r.size);
+
+ ASSERT_EQ(rgn->base, r.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that trying to add the 129th memory block.
+ * Expect to trigger memblock_double_array() to double the
+ * memblock.memory.max, find a new valid memory as
+ * memory.regions.
+ */
+static int memblock_add_many_check(void)
+{
+ int i;
+ void *orig_region;
+ struct region r = {
+ .base = SZ_16K,
+ .size = SZ_16K,
+ };
+ phys_addr_t new_memory_regions_size;
+ phys_addr_t base, size = SZ_64;
+ phys_addr_t gap_size = SZ_64;
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_allow_resize();
+
+ dummy_physical_memory_init();
+ /*
+ * We allocated enough memory by using dummy_physical_memory_init(), and
+ * split it into small block. First we split a large enough memory block
+ * as the memory region which will be choosed by memblock_double_array().
+ */
+ base = PAGE_ALIGN(dummy_physical_memory_base());
+ new_memory_regions_size = PAGE_ALIGN(INIT_MEMBLOCK_REGIONS * 2 *
+ sizeof(struct memblock_region));
+ memblock_add(base, new_memory_regions_size);
+
+ /* This is the base of small memory block. */
+ base += new_memory_regions_size + gap_size;
+
+ orig_region = memblock.memory.regions;
+
+ for (i = 0; i < INIT_MEMBLOCK_REGIONS; i++) {
+ /*
+ * Add these small block to fulfill the memblock. We keep a
+ * gap between the nearby memory to avoid being merged.
+ */
+ memblock_add(base, size);
+ base += size + gap_size;
+
+ ASSERT_EQ(memblock.memory.cnt, i + 2);
+ ASSERT_EQ(memblock.memory.total_size, new_memory_regions_size +
+ (i + 1) * size);
+ }
+
+ /*
+ * At there, memblock_double_array() has been succeed, check if it
+ * update the memory.max.
+ */
+ ASSERT_EQ(memblock.memory.max, INIT_MEMBLOCK_REGIONS * 2);
+
+ /* memblock_double_array() will reserve the memory it used. Check it. */
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, new_memory_regions_size);
+
+ /*
+ * Now memblock_double_array() works fine. Let's check after the
+ * double_array(), the memblock_add() still works as normal.
+ */
+ memblock_add(r.base, r.size);
+ ASSERT_EQ(memblock.memory.regions[0].base, r.base);
+ ASSERT_EQ(memblock.memory.regions[0].size, r.size);
+
+ ASSERT_EQ(memblock.memory.cnt, INIT_MEMBLOCK_REGIONS + 2);
+ ASSERT_EQ(memblock.memory.total_size, INIT_MEMBLOCK_REGIONS * size +
+ new_memory_regions_size +
+ r.size);
+ ASSERT_EQ(memblock.memory.max, INIT_MEMBLOCK_REGIONS * 2);
+
+ dummy_physical_memory_cleanup();
+
+ /*
+ * The current memory.regions is occupying a range of memory that
+ * allocated from dummy_physical_memory_init(). After free the memory,
+ * we must not use it. So restore the origin memory region to make sure
+ * the tests can run as normal and not affected by the double array.
+ */
+ memblock.memory.regions = orig_region;
+ memblock.memory.cnt = INIT_MEMBLOCK_REGIONS;
+
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_add_checks(void)
+{
+ prefix_reset();
+ prefix_push(FUNC_ADD);
+ test_print("Running %s tests...\n", FUNC_ADD);
+
+ memblock_add_simple_check();
+ memblock_add_node_simple_check();
+ memblock_add_disjoint_check();
+ memblock_add_overlap_top_check();
+ memblock_add_overlap_bottom_check();
+ memblock_add_within_check();
+ memblock_add_twice_check();
+ memblock_add_between_check();
+ memblock_add_near_max_check();
+ memblock_add_many_check();
+
+ prefix_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that marks a memory block of a specified base address
+ * and size as reserved and to the collection of reserved memory regions
+ * (memblock.reserved). Expect to create a new entry. The region counter
+ * and total memory size are updated.
+ */
+static int memblock_reserve_simple_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r = {
+ .base = SZ_2G,
+ .size = SZ_128M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_reserve(r.base, r.size);
+
+ ASSERT_EQ(rgn->base, r.base);
+ ASSERT_EQ(rgn->size, r.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to mark two memory blocks that don't overlap as reserved:
+ *
+ * | +--+ +----------------+ |
+ * | |r1| | r2 | |
+ * +--------+--+------+----------------+--+
+ *
+ * Expect to add two entries to the collection of reserved memory regions
+ * (memblock.reserved). The total size and region counter for
+ * memblock.reserved are updated.
+ */
+static int memblock_reserve_disjoint_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+
+ rgn1 = &memblock.reserved.regions[0];
+ rgn2 = &memblock.reserved.regions[1];
+
+ struct region r1 = {
+ .base = SZ_256M,
+ .size = SZ_16M
+ };
+ struct region r2 = {
+ .base = SZ_512M,
+ .size = SZ_512M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, r1.size);
+
+ ASSERT_EQ(rgn2->base, r2.base);
+ ASSERT_EQ(rgn2->size, r2.size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, r1.size + r2.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to mark two memory blocks r1 and r2 as reserved,
+ * where r2 overlaps with the beginning of r1 (that is
+ * r1.base < r2.base + r2.size):
+ *
+ * | +--------------+--+--------------+ |
+ * | | r2 | | r1 | |
+ * +--+--------------+--+--------------+--+
+ * ^ ^
+ * | |
+ * | r1.base
+ * |
+ * r2.base
+ *
+ * Expect to merge two entries into one region that starts at r2.base and
+ * has size of two regions minus their intersection. The total size of the
+ * reserved memory is updated, and the region counter is not updated.
+ */
+static int memblock_reserve_overlap_top_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_1G,
+ .size = SZ_1G
+ };
+ struct region r2 = {
+ .base = SZ_128M,
+ .size = SZ_1G
+ };
+
+ PREFIX_PUSH();
+
+ total_size = (r1.base - r2.base) + r1.size;
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r2.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to mark two memory blocks r1 and r2 as reserved,
+ * where r2 overlaps with the end of r1 (that is
+ * r2.base < r1.base + r1.size):
+ *
+ * | +--------------+--+--------------+ |
+ * | | r1 | | r2 | |
+ * +--+--------------+--+--------------+--+
+ * ^ ^
+ * | |
+ * | r2.base
+ * |
+ * r1.base
+ *
+ * Expect to merge two entries into one region that starts at r1.base and
+ * has size of two regions minus their intersection. The total size of the
+ * reserved memory is updated, and the region counter is not updated.
+ */
+static int memblock_reserve_overlap_bottom_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_2K,
+ .size = SZ_128K
+ };
+ struct region r2 = {
+ .base = SZ_128K,
+ .size = SZ_128K
+ };
+
+ PREFIX_PUSH();
+
+ total_size = (r2.base - r1.base) + r2.size;
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to mark two memory blocks r1 and r2 as reserved,
+ * where r2 is within the range of r1 (that is
+ * (r1.base < r2.base) && (r2.base + r2.size < r1.base + r1.size)):
+ *
+ * | +-----+--+---------------------------|
+ * | | |r2| r1 |
+ * +-+-----+--+---------------------------+
+ * ^ ^
+ * | |
+ * | r2.base
+ * |
+ * r1.base
+ *
+ * Expect to merge two entries into one region that stays the same. The
+ * counter and total size of available memory are not updated.
+ */
+static int memblock_reserve_within_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_1M,
+ .size = SZ_8M
+ };
+ struct region r2 = {
+ .base = SZ_2M,
+ .size = SZ_64K
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, r1.size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to reserve the same memory block twice.
+ * Expect the region counter and total size of reserved memory to not
+ * be updated.
+ */
+static int memblock_reserve_twice_check(void)
+{
+ struct region r = {
+ .base = SZ_16K,
+ .size = SZ_2M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+
+ memblock_reserve(r.base, r.size);
+ memblock_reserve(r.base, r.size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, r.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to mark two memory blocks that don't overlap as reserved
+ * and then reserve a third memory block in the space between the first two:
+ *
+ * | +--------+--------+--------+ |
+ * | | r1 | r3 | r2 | |
+ * +--------+--------+--------+--------+--+
+ *
+ * Expect to merge the three entries into one reserved region that starts at
+ * r1.base and has size of r1.size + r2.size + r3.size. The region counter and
+ * total for memblock.reserved are updated.
+ */
+static int memblock_reserve_between_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_1G,
+ .size = SZ_8K
+ };
+ struct region r2 = {
+ .base = SZ_1G + SZ_16K,
+ .size = SZ_8K
+ };
+ struct region r3 = {
+ .base = SZ_1G + SZ_8K,
+ .size = SZ_8K
+ };
+
+ PREFIX_PUSH();
+
+ total_size = r1.size + r2.size + r3.size;
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+ memblock_reserve(r3.base, r3.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to reserve a memory block r when r extends past
+ * PHYS_ADDR_MAX:
+ *
+ * +--------+
+ * | r |
+ * +--------+
+ * | +----+
+ * | | rgn|
+ * +----------------------------+----+
+ *
+ * Expect to reserve a memory block of size PHYS_ADDR_MAX - r.base. Expect the
+ * total size of reserved memory and the counter to be updated.
+ */
+static int memblock_reserve_near_max_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r = {
+ .base = PHYS_ADDR_MAX - SZ_1M,
+ .size = SZ_2M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = PHYS_ADDR_MAX - r.base;
+
+ reset_memblock_regions();
+ memblock_reserve(r.base, r.size);
+
+ ASSERT_EQ(rgn->base, r.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that trying to reserve the 129th memory block.
+ * Expect to trigger memblock_double_array() to double the
+ * memblock.memory.max, find a new valid memory as
+ * reserved.regions.
+ */
+static int memblock_reserve_many_check(void)
+{
+ int i;
+ void *orig_region;
+ struct region r = {
+ .base = SZ_16K,
+ .size = SZ_16K,
+ };
+ phys_addr_t memory_base = SZ_128K;
+ phys_addr_t new_reserved_regions_size;
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_allow_resize();
+
+ /* Add a valid memory region used by double_array(). */
+ dummy_physical_memory_init();
+ memblock_add(dummy_physical_memory_base(), MEM_SIZE);
+
+ for (i = 0; i < INIT_MEMBLOCK_REGIONS; i++) {
+ /* Reserve some fakes memory region to fulfill the memblock. */
+ memblock_reserve(memory_base, MEM_SIZE);
+
+ ASSERT_EQ(memblock.reserved.cnt, i + 1);
+ ASSERT_EQ(memblock.reserved.total_size, (i + 1) * MEM_SIZE);
+
+ /* Keep the gap so these memory region will not be merged. */
+ memory_base += MEM_SIZE * 2;
+ }
+
+ orig_region = memblock.reserved.regions;
+
+ /* This reserve the 129 memory_region, and makes it double array. */
+ memblock_reserve(memory_base, MEM_SIZE);
+
+ /*
+ * This is the memory region size used by the doubled reserved.regions,
+ * and it has been reserved due to it has been used. The size is used to
+ * calculate the total_size that the memblock.reserved have now.
+ */
+ new_reserved_regions_size = PAGE_ALIGN((INIT_MEMBLOCK_REGIONS * 2) *
+ sizeof(struct memblock_region));
+ /*
+ * The double_array() will find a free memory region as the new
+ * reserved.regions, and the used memory region will be reserved, so
+ * there will be one more region exist in the reserved memblock. And the
+ * one more reserved region's size is new_reserved_regions_size.
+ */
+ ASSERT_EQ(memblock.reserved.cnt, INIT_MEMBLOCK_REGIONS + 2);
+ ASSERT_EQ(memblock.reserved.total_size, (INIT_MEMBLOCK_REGIONS + 1) * MEM_SIZE +
+ new_reserved_regions_size);
+ ASSERT_EQ(memblock.reserved.max, INIT_MEMBLOCK_REGIONS * 2);
+
+ /*
+ * Now memblock_double_array() works fine. Let's check after the
+ * double_array(), the memblock_reserve() still works as normal.
+ */
+ memblock_reserve(r.base, r.size);
+ ASSERT_EQ(memblock.reserved.regions[0].base, r.base);
+ ASSERT_EQ(memblock.reserved.regions[0].size, r.size);
+
+ ASSERT_EQ(memblock.reserved.cnt, INIT_MEMBLOCK_REGIONS + 3);
+ ASSERT_EQ(memblock.reserved.total_size, (INIT_MEMBLOCK_REGIONS + 1) * MEM_SIZE +
+ new_reserved_regions_size +
+ r.size);
+ ASSERT_EQ(memblock.reserved.max, INIT_MEMBLOCK_REGIONS * 2);
+
+ dummy_physical_memory_cleanup();
+
+ /*
+ * The current reserved.regions is occupying a range of memory that
+ * allocated from dummy_physical_memory_init(). After free the memory,
+ * we must not use it. So restore the origin memory region to make sure
+ * the tests can run as normal and not affected by the double array.
+ */
+ memblock.reserved.regions = orig_region;
+ memblock.reserved.cnt = INIT_MEMBLOCK_RESERVED_REGIONS;
+
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_reserve_checks(void)
+{
+ prefix_reset();
+ prefix_push(FUNC_RESERVE);
+ test_print("Running %s tests...\n", FUNC_RESERVE);
+
+ memblock_reserve_simple_check();
+ memblock_reserve_disjoint_check();
+ memblock_reserve_overlap_top_check();
+ memblock_reserve_overlap_bottom_check();
+ memblock_reserve_within_check();
+ memblock_reserve_twice_check();
+ memblock_reserve_between_check();
+ memblock_reserve_near_max_check();
+ memblock_reserve_many_check();
+
+ prefix_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to remove a region r1 from the array of
+ * available memory regions. By "removing" a region we mean overwriting it
+ * with the next region r2 in memblock.memory:
+ *
+ * | ...... +----------------+ |
+ * | : r1 : | r2 | |
+ * +--+----+----------+----------------+--+
+ * ^
+ * |
+ * rgn.base
+ *
+ * Expect to add two memory blocks r1 and r2 and then remove r1 so that
+ * r2 is the first available region. The region counter and total size
+ * are updated.
+ */
+static int memblock_remove_simple_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_2K,
+ .size = SZ_4K
+ };
+ struct region r2 = {
+ .base = SZ_128K,
+ .size = SZ_4M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+ memblock_remove(r1.base, r1.size);
+
+ ASSERT_EQ(rgn->base, r2.base);
+ ASSERT_EQ(rgn->size, r2.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, r2.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to remove a region r2 that was not registered as
+ * available memory (i.e. has no corresponding entry in memblock.memory):
+ *
+ * +----------------+
+ * | r2 |
+ * +----------------+
+ * | +----+ |
+ * | | r1 | |
+ * +--+----+------------------------------+
+ * ^
+ * |
+ * rgn.base
+ *
+ * Expect the array, regions counter and total size to not be modified.
+ */
+static int memblock_remove_absent_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_512K,
+ .size = SZ_4M
+ };
+ struct region r2 = {
+ .base = SZ_64M,
+ .size = SZ_1G
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_remove(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, r1.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to remove a region r2 that overlaps with the
+ * beginning of the already existing entry r1
+ * (that is r1.base < r2.base + r2.size):
+ *
+ * +-----------------+
+ * | r2 |
+ * +-----------------+
+ * | .........+--------+ |
+ * | : r1 | rgn | |
+ * +-----------------+--------+--------+--+
+ * ^ ^
+ * | |
+ * | rgn.base
+ * r1.base
+ *
+ * Expect that only the intersection of both regions is removed from the
+ * available memory pool. The regions counter and total size are updated.
+ */
+static int memblock_remove_overlap_top_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t r1_end, r2_end, total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_32M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_16M,
+ .size = SZ_32M
+ };
+
+ PREFIX_PUSH();
+
+ r1_end = r1.base + r1.size;
+ r2_end = r2.base + r2.size;
+ total_size = r1_end - r2_end;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_remove(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base + r2.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to remove a region r2 that overlaps with the end of
+ * the already existing region r1 (that is r2.base < r1.base + r1.size):
+ *
+ * +--------------------------------+
+ * | r2 |
+ * +--------------------------------+
+ * | +---+..... |
+ * | |rgn| r1 : |
+ * +-+---+----+---------------------------+
+ * ^
+ * |
+ * r1.base
+ *
+ * Expect that only the intersection of both regions is removed from the
+ * available memory pool. The regions counter and total size are updated.
+ */
+static int memblock_remove_overlap_bottom_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_2M,
+ .size = SZ_64M
+ };
+ struct region r2 = {
+ .base = SZ_32M,
+ .size = SZ_256M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = r2.base - r1.base;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_remove(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to remove a region r2 that is within the range of
+ * the already existing entry r1 (that is
+ * (r1.base < r2.base) && (r2.base + r2.size < r1.base + r1.size)):
+ *
+ * +----+
+ * | r2 |
+ * +----+
+ * | +-------------+....+---------------+ |
+ * | | rgn1 | r1 | rgn2 | |
+ * +-+-------------+----+---------------+-+
+ * ^
+ * |
+ * r1.base
+ *
+ * Expect that the region is split into two - one that ends at r2.base and
+ * another that starts at r2.base + r2.size, with appropriate sizes. The
+ * region counter and total size are updated.
+ */
+static int memblock_remove_within_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+ phys_addr_t r1_size, r2_size, total_size;
+
+ rgn1 = &memblock.memory.regions[0];
+ rgn2 = &memblock.memory.regions[1];
+
+ struct region r1 = {
+ .base = SZ_1M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_16M,
+ .size = SZ_1M
+ };
+
+ PREFIX_PUSH();
+
+ r1_size = r2.base - r1.base;
+ r2_size = (r1.base + r1.size) - (r2.base + r2.size);
+ total_size = r1_size + r2_size;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_remove(r2.base, r2.size);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, r1_size);
+
+ ASSERT_EQ(rgn2->base, r2.base + r2.size);
+ ASSERT_EQ(rgn2->size, r2_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 2);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to remove a region r1 from the array of
+ * available memory regions when r1 is the only available region.
+ * Expect to add a memory block r1 and then remove r1 so that a dummy
+ * region is added. The region counter stays the same, and the total size
+ * is updated.
+ */
+static int memblock_remove_only_region_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = SZ_2K,
+ .size = SZ_4K
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_remove(r1.base, r1.size);
+
+ ASSERT_EQ(rgn->base, 0);
+ ASSERT_EQ(rgn->size, 0);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, 0);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries remove a region r2 from the array of available
+ * memory regions when r2 extends past PHYS_ADDR_MAX:
+ *
+ * +--------+
+ * | r2 |
+ * +--------+
+ * | +---+....+
+ * | |rgn| |
+ * +------------------------+---+----+
+ *
+ * Expect that only the portion between PHYS_ADDR_MAX and r2.base is removed.
+ * Expect the total size of available memory to be updated and the counter to
+ * not be updated.
+ */
+static int memblock_remove_near_max_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = PHYS_ADDR_MAX - SZ_2M,
+ .size = SZ_2M
+ };
+
+ struct region r2 = {
+ .base = PHYS_ADDR_MAX - SZ_1M,
+ .size = SZ_2M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = r1.size - (PHYS_ADDR_MAX - r2.base);
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_remove(r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to remove a region r3 that overlaps with two existing
+ * regions r1 and r2:
+ *
+ * +----------------+
+ * | r3 |
+ * +----------------+
+ * | +----+..... ........+--------+
+ * | | |r1 : : |r2 | |
+ * +----+----+----+---+-------+--------+-----+
+ *
+ * Expect that only the intersections of r1 with r3 and r2 with r3 are removed
+ * from the available memory pool. Expect the total size of available memory to
+ * be updated and the counter to not be updated.
+ */
+static int memblock_remove_overlap_two_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+ phys_addr_t new_r1_size, new_r2_size, r2_end, r3_end, total_size;
+
+ rgn1 = &memblock.memory.regions[0];
+ rgn2 = &memblock.memory.regions[1];
+
+ struct region r1 = {
+ .base = SZ_16M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_64M,
+ .size = SZ_64M
+ };
+ struct region r3 = {
+ .base = SZ_32M,
+ .size = SZ_64M
+ };
+
+ PREFIX_PUSH();
+
+ r2_end = r2.base + r2.size;
+ r3_end = r3.base + r3.size;
+ new_r1_size = r3.base - r1.base;
+ new_r2_size = r2_end - r3_end;
+ total_size = new_r1_size + new_r2_size;
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+ memblock_remove(r3.base, r3.size);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, new_r1_size);
+
+ ASSERT_EQ(rgn2->base, r3_end);
+ ASSERT_EQ(rgn2->size, new_r2_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 2);
+ ASSERT_EQ(memblock.memory.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_remove_checks(void)
+{
+ prefix_reset();
+ prefix_push(FUNC_REMOVE);
+ test_print("Running %s tests...\n", FUNC_REMOVE);
+
+ memblock_remove_simple_check();
+ memblock_remove_absent_check();
+ memblock_remove_overlap_top_check();
+ memblock_remove_overlap_bottom_check();
+ memblock_remove_within_check();
+ memblock_remove_only_region_check();
+ memblock_remove_near_max_check();
+ memblock_remove_overlap_two_check();
+
+ prefix_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to free a memory block r1 that was marked
+ * earlier as reserved. By "freeing" a region we mean overwriting it with
+ * the next entry r2 in memblock.reserved:
+ *
+ * | ...... +----+ |
+ * | : r1 : | r2 | |
+ * +--------------+----+-----------+----+-+
+ * ^
+ * |
+ * rgn.base
+ *
+ * Expect to reserve two memory regions and then erase r1 region with the
+ * value of r2. The region counter and total size are updated.
+ */
+static int memblock_free_simple_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_4M,
+ .size = SZ_1M
+ };
+ struct region r2 = {
+ .base = SZ_8M,
+ .size = SZ_1M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+ memblock_free((void *)r1.base, r1.size);
+
+ ASSERT_EQ(rgn->base, r2.base);
+ ASSERT_EQ(rgn->size, r2.size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, r2.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to free a region r2 that was not marked as reserved
+ * (i.e. has no corresponding entry in memblock.reserved):
+ *
+ * +----------------+
+ * | r2 |
+ * +----------------+
+ * | +----+ |
+ * | | r1 | |
+ * +--+----+------------------------------+
+ * ^
+ * |
+ * rgn.base
+ *
+ * The array, regions counter and total size are not modified.
+ */
+static int memblock_free_absent_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_2M,
+ .size = SZ_8K
+ };
+ struct region r2 = {
+ .base = SZ_16M,
+ .size = SZ_128M
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_free((void *)r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, r1.size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, r1.size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to free a region r2 that overlaps with the beginning
+ * of the already existing entry r1 (that is r1.base < r2.base + r2.size):
+ *
+ * +----+
+ * | r2 |
+ * +----+
+ * | ...+--------------+ |
+ * | : | r1 | |
+ * +----+--+--------------+---------------+
+ * ^ ^
+ * | |
+ * | rgn.base
+ * |
+ * r1.base
+ *
+ * Expect that only the intersection of both regions is freed. The
+ * regions counter and total size are updated.
+ */
+static int memblock_free_overlap_top_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_8M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_1M,
+ .size = SZ_8M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = (r1.size + r1.base) - (r2.base + r2.size);
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_free((void *)r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r2.base + r2.size);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to free a region r2 that overlaps with the end of
+ * the already existing entry r1 (that is r2.base < r1.base + r1.size):
+ *
+ * +----------------+
+ * | r2 |
+ * +----------------+
+ * | +-----------+..... |
+ * | | r1 | : |
+ * +----+-----------+----+----------------+
+ *
+ * Expect that only the intersection of both regions is freed. The
+ * regions counter and total size are updated.
+ */
+static int memblock_free_overlap_bottom_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_8M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_32M,
+ .size = SZ_32M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = r2.base - r1.base;
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_free((void *)r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to free a region r2 that is within the range of the
+ * already existing entry r1 (that is
+ * (r1.base < r2.base) && (r2.base + r2.size < r1.base + r1.size)):
+ *
+ * +----+
+ * | r2 |
+ * +----+
+ * | +------------+....+---------------+
+ * | | rgn1 | r1 | rgn2 |
+ * +----+------------+----+---------------+
+ * ^
+ * |
+ * r1.base
+ *
+ * Expect that the region is split into two - one that ends at r2.base and
+ * another that starts at r2.base + r2.size, with appropriate sizes. The
+ * region counter and total size fields are updated.
+ */
+static int memblock_free_within_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+ phys_addr_t r1_size, r2_size, total_size;
+
+ rgn1 = &memblock.reserved.regions[0];
+ rgn2 = &memblock.reserved.regions[1];
+
+ struct region r1 = {
+ .base = SZ_1M,
+ .size = SZ_8M
+ };
+ struct region r2 = {
+ .base = SZ_4M,
+ .size = SZ_1M
+ };
+
+ PREFIX_PUSH();
+
+ r1_size = r2.base - r1.base;
+ r2_size = (r1.base + r1.size) - (r2.base + r2.size);
+ total_size = r1_size + r2_size;
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_free((void *)r2.base, r2.size);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, r1_size);
+
+ ASSERT_EQ(rgn2->base, r2.base + r2.size);
+ ASSERT_EQ(rgn2->size, r2_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries to free a memory block r1 that was marked
+ * earlier as reserved when r1 is the only available region.
+ * Expect to reserve a memory block r1 and then free r1 so that r1 is
+ * overwritten with a dummy region. The region counter stays the same,
+ * and the total size is updated.
+ */
+static int memblock_free_only_region_check(void)
+{
+ struct memblock_region *rgn;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = SZ_2K,
+ .size = SZ_4K
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_free((void *)r1.base, r1.size);
+
+ ASSERT_EQ(rgn->base, 0);
+ ASSERT_EQ(rgn->size, 0);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, 0);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A simple test that tries free a region r2 when r2 extends past PHYS_ADDR_MAX:
+ *
+ * +--------+
+ * | r2 |
+ * +--------+
+ * | +---+....+
+ * | |rgn| |
+ * +------------------------+---+----+
+ *
+ * Expect that only the portion between PHYS_ADDR_MAX and r2.base is freed.
+ * Expect the total size of reserved memory to be updated and the counter to
+ * not be updated.
+ */
+static int memblock_free_near_max_check(void)
+{
+ struct memblock_region *rgn;
+ phys_addr_t total_size;
+
+ rgn = &memblock.reserved.regions[0];
+
+ struct region r1 = {
+ .base = PHYS_ADDR_MAX - SZ_2M,
+ .size = SZ_2M
+ };
+
+ struct region r2 = {
+ .base = PHYS_ADDR_MAX - SZ_1M,
+ .size = SZ_2M
+ };
+
+ PREFIX_PUSH();
+
+ total_size = r1.size - (PHYS_ADDR_MAX - r2.base);
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_free((void *)r2.base, r2.size);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, total_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 1);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to free a reserved region r3 that overlaps with two
+ * existing reserved regions r1 and r2:
+ *
+ * +----------------+
+ * | r3 |
+ * +----------------+
+ * | +----+..... ........+--------+
+ * | | |r1 : : |r2 | |
+ * +----+----+----+---+-------+--------+-----+
+ *
+ * Expect that only the intersections of r1 with r3 and r2 with r3 are freed
+ * from the collection of reserved memory. Expect the total size of reserved
+ * memory to be updated and the counter to not be updated.
+ */
+static int memblock_free_overlap_two_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+ phys_addr_t new_r1_size, new_r2_size, r2_end, r3_end, total_size;
+
+ rgn1 = &memblock.reserved.regions[0];
+ rgn2 = &memblock.reserved.regions[1];
+
+ struct region r1 = {
+ .base = SZ_16M,
+ .size = SZ_32M
+ };
+ struct region r2 = {
+ .base = SZ_64M,
+ .size = SZ_64M
+ };
+ struct region r3 = {
+ .base = SZ_32M,
+ .size = SZ_64M
+ };
+
+ PREFIX_PUSH();
+
+ r2_end = r2.base + r2.size;
+ r3_end = r3.base + r3.size;
+ new_r1_size = r3.base - r1.base;
+ new_r2_size = r2_end - r3_end;
+ total_size = new_r1_size + new_r2_size;
+
+ reset_memblock_regions();
+ memblock_reserve(r1.base, r1.size);
+ memblock_reserve(r2.base, r2.size);
+ memblock_free((void *)r3.base, r3.size);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, new_r1_size);
+
+ ASSERT_EQ(rgn2->base, r3_end);
+ ASSERT_EQ(rgn2->size, new_r2_size);
+
+ ASSERT_EQ(memblock.reserved.cnt, 2);
+ ASSERT_EQ(memblock.reserved.total_size, total_size);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_free_checks(void)
+{
+ prefix_reset();
+ prefix_push(FUNC_FREE);
+ test_print("Running %s tests...\n", FUNC_FREE);
+
+ memblock_free_simple_check();
+ memblock_free_absent_check();
+ memblock_free_overlap_top_check();
+ memblock_free_overlap_bottom_check();
+ memblock_free_within_check();
+ memblock_free_only_region_check();
+ memblock_free_near_max_check();
+ memblock_free_overlap_two_check();
+
+ prefix_pop();
+
+ return 0;
+}
+
+static int memblock_set_bottom_up_check(void)
+{
+ prefix_push("memblock_set_bottom_up");
+
+ memblock_set_bottom_up(false);
+ ASSERT_EQ(memblock.bottom_up, false);
+ memblock_set_bottom_up(true);
+ ASSERT_EQ(memblock.bottom_up, true);
+
+ reset_memblock_attributes();
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_bottom_up_check(void)
+{
+ prefix_push("memblock_bottom_up");
+
+ memblock_set_bottom_up(false);
+ ASSERT_EQ(memblock_bottom_up(), memblock.bottom_up);
+ ASSERT_EQ(memblock_bottom_up(), false);
+ memblock_set_bottom_up(true);
+ ASSERT_EQ(memblock_bottom_up(), memblock.bottom_up);
+ ASSERT_EQ(memblock_bottom_up(), true);
+
+ reset_memblock_attributes();
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_bottom_up_checks(void)
+{
+ test_print("Running memblock_*bottom_up tests...\n");
+
+ prefix_reset();
+ memblock_set_bottom_up_check();
+ prefix_reset();
+ memblock_bottom_up_check();
+
+ return 0;
+}
+
+/*
+ * A test that tries to trim memory when both ends of the memory region are
+ * aligned. Expect that the memory will not be trimmed. Expect the counter to
+ * not be updated.
+ */
+static int memblock_trim_memory_aligned_check(void)
+{
+ struct memblock_region *rgn;
+ const phys_addr_t alignment = SMP_CACHE_BYTES;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r = {
+ .base = alignment,
+ .size = alignment * 4
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r.base, r.size);
+ memblock_trim_memory(alignment);
+
+ ASSERT_EQ(rgn->base, r.base);
+ ASSERT_EQ(rgn->size, r.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to trim memory when there are two available regions, r1 and
+ * r2. Region r1 is aligned on both ends and region r2 is unaligned on one end
+ * and smaller than the alignment:
+ *
+ * alignment
+ * |--------|
+ * | +-----------------+ +------+ |
+ * | | r1 | | r2 | |
+ * +--------+-----------------+--------+------+---+
+ * ^ ^ ^ ^ ^
+ * |________|________|________| |
+ * | Unaligned address
+ * Aligned addresses
+ *
+ * Expect that r1 will not be trimmed and r2 will be removed. Expect the
+ * counter to be updated.
+ */
+static int memblock_trim_memory_too_small_check(void)
+{
+ struct memblock_region *rgn;
+ const phys_addr_t alignment = SMP_CACHE_BYTES;
+
+ rgn = &memblock.memory.regions[0];
+
+ struct region r1 = {
+ .base = alignment,
+ .size = alignment * 2
+ };
+ struct region r2 = {
+ .base = alignment * 4,
+ .size = alignment - SZ_2
+ };
+
+ PREFIX_PUSH();
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+ memblock_trim_memory(alignment);
+
+ ASSERT_EQ(rgn->base, r1.base);
+ ASSERT_EQ(rgn->size, r1.size);
+
+ ASSERT_EQ(memblock.memory.cnt, 1);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to trim memory when there are two available regions, r1 and
+ * r2. Region r1 is aligned on both ends and region r2 is unaligned at the base
+ * and aligned at the end:
+ *
+ * Unaligned address
+ * |
+ * v
+ * | +-----------------+ +---------------+ |
+ * | | r1 | | r2 | |
+ * +--------+-----------------+----------+---------------+---+
+ * ^ ^ ^ ^ ^ ^
+ * |________|________|________|________|________|
+ * |
+ * Aligned addresses
+ *
+ * Expect that r1 will not be trimmed and r2 will be trimmed at the base.
+ * Expect the counter to not be updated.
+ */
+static int memblock_trim_memory_unaligned_base_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+ const phys_addr_t alignment = SMP_CACHE_BYTES;
+ phys_addr_t offset = SZ_2;
+ phys_addr_t new_r2_base, new_r2_size;
+
+ rgn1 = &memblock.memory.regions[0];
+ rgn2 = &memblock.memory.regions[1];
+
+ struct region r1 = {
+ .base = alignment,
+ .size = alignment * 2
+ };
+ struct region r2 = {
+ .base = alignment * 4 + offset,
+ .size = alignment * 2 - offset
+ };
+
+ PREFIX_PUSH();
+
+ new_r2_base = r2.base + (alignment - offset);
+ new_r2_size = r2.size - (alignment - offset);
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+ memblock_trim_memory(alignment);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, r1.size);
+
+ ASSERT_EQ(rgn2->base, new_r2_base);
+ ASSERT_EQ(rgn2->size, new_r2_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 2);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+/*
+ * A test that tries to trim memory when there are two available regions, r1 and
+ * r2. Region r1 is aligned on both ends and region r2 is aligned at the base
+ * and unaligned at the end:
+ *
+ * Unaligned address
+ * |
+ * v
+ * | +-----------------+ +---------------+ |
+ * | | r1 | | r2 | |
+ * +--------+-----------------+--------+---------------+---+
+ * ^ ^ ^ ^ ^ ^
+ * |________|________|________|________|________|
+ * |
+ * Aligned addresses
+ *
+ * Expect that r1 will not be trimmed and r2 will be trimmed at the end.
+ * Expect the counter to not be updated.
+ */
+static int memblock_trim_memory_unaligned_end_check(void)
+{
+ struct memblock_region *rgn1, *rgn2;
+ const phys_addr_t alignment = SMP_CACHE_BYTES;
+ phys_addr_t offset = SZ_2;
+ phys_addr_t new_r2_size;
+
+ rgn1 = &memblock.memory.regions[0];
+ rgn2 = &memblock.memory.regions[1];
+
+ struct region r1 = {
+ .base = alignment,
+ .size = alignment * 2
+ };
+ struct region r2 = {
+ .base = alignment * 4,
+ .size = alignment * 2 - offset
+ };
+
+ PREFIX_PUSH();
+
+ new_r2_size = r2.size - (alignment - offset);
+
+ reset_memblock_regions();
+ memblock_add(r1.base, r1.size);
+ memblock_add(r2.base, r2.size);
+ memblock_trim_memory(alignment);
+
+ ASSERT_EQ(rgn1->base, r1.base);
+ ASSERT_EQ(rgn1->size, r1.size);
+
+ ASSERT_EQ(rgn2->base, r2.base);
+ ASSERT_EQ(rgn2->size, new_r2_size);
+
+ ASSERT_EQ(memblock.memory.cnt, 2);
+
+ test_pass_pop();
+
+ return 0;
+}
+
+static int memblock_trim_memory_checks(void)
+{
+ prefix_reset();
+ prefix_push(FUNC_TRIM);
+ test_print("Running %s tests...\n", FUNC_TRIM);
+
+ memblock_trim_memory_aligned_check();
+ memblock_trim_memory_too_small_check();
+ memblock_trim_memory_unaligned_base_check();
+ memblock_trim_memory_unaligned_end_check();
+
+ prefix_pop();
+
+ return 0;
+}
+
+int memblock_basic_checks(void)
+{
+ memblock_initialization_check();
+ memblock_add_checks();
+ memblock_reserve_checks();
+ memblock_remove_checks();
+ memblock_free_checks();
+ memblock_bottom_up_checks();
+ memblock_trim_memory_checks();
+
+ 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 0000000000..1873faa547
--- /dev/null
+++ b/tools/testing/memblock/tests/basic_api.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _MEMBLOCK_BASIC_H
+#define _MEMBLOCK_BASIC_H
+
+#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 0000000000..f43b6f4149
--- /dev/null
+++ b/tools/testing/memblock/tests/common.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "tests/common.h"
+#include <string.h>
+#include <getopt.h>
+#include <linux/memory_hotplug.h>
+#include <linux/build_bug.h>
+
+#define PREFIXES_MAX 15
+#define DELIM ": "
+#define BASIS 10000
+
+static struct test_memory memory_block;
+static const char __maybe_unused *prefixes[PREFIXES_MAX];
+static int __maybe_unused nr_prefixes;
+
+static const char *short_opts = "hmv";
+static const struct option long_opts[] = {
+ {"help", 0, NULL, 'h'},
+ {"movable-node", 0, NULL, 'm'},
+ {"verbose", 0, NULL, 'v'},
+ {NULL, 0, NULL, 0}
+};
+
+static const char * const help_opts[] = {
+ "display this help message and exit",
+ "disallow allocations from regions marked as hotplugged\n\t\t\t"
+ "by simulating enabling the \"movable_node\" kernel\n\t\t\t"
+ "parameter",
+ "enable verbose output, which includes the name of the\n\t\t\t"
+ "memblock function being tested, the name of the test,\n\t\t\t"
+ "and whether the test passed or failed."
+};
+
+static int verbose;
+
+/* sets global variable returned by movable_node_is_enabled() stub */
+bool movable_node_enabled;
+
+void reset_memblock_regions(void)
+{
+ memset(memblock.memory.regions, 0,
+ memblock.memory.cnt * sizeof(struct memblock_region));
+ memblock.memory.cnt = 1;
+ memblock.memory.max = INIT_MEMBLOCK_REGIONS;
+ memblock.memory.total_size = 0;
+
+ memset(memblock.reserved.regions, 0,
+ memblock.reserved.cnt * sizeof(struct memblock_region));
+ memblock.reserved.cnt = 1;
+ memblock.reserved.max = INIT_MEMBLOCK_RESERVED_REGIONS;
+ memblock.reserved.total_size = 0;
+}
+
+void reset_memblock_attributes(void)
+{
+ memblock.memory.name = "memory";
+ memblock.reserved.name = "reserved";
+ memblock.bottom_up = false;
+ memblock.current_limit = MEMBLOCK_ALLOC_ANYWHERE;
+}
+
+static inline void fill_memblock(void)
+{
+ memset(memory_block.base, 1, MEM_SIZE);
+}
+
+void setup_memblock(void)
+{
+ reset_memblock_regions();
+ memblock_add((phys_addr_t)memory_block.base, MEM_SIZE);
+ fill_memblock();
+}
+
+/**
+ * setup_numa_memblock:
+ * Set up a memory layout with multiple NUMA nodes in a previously allocated
+ * dummy physical memory.
+ * @node_fracs: an array representing the fraction of MEM_SIZE contained in
+ * each node in basis point units (one hundredth of 1% or 1/10000).
+ * For example, if node 0 should contain 1/8 of MEM_SIZE,
+ * node_fracs[0] = 1250.
+ *
+ * The nids will be set to 0 through NUMA_NODES - 1.
+ */
+void setup_numa_memblock(const unsigned int node_fracs[])
+{
+ phys_addr_t base;
+ int flags;
+
+ reset_memblock_regions();
+ base = (phys_addr_t)memory_block.base;
+ flags = (movable_node_is_enabled()) ? MEMBLOCK_NONE : MEMBLOCK_HOTPLUG;
+
+ for (int i = 0; i < NUMA_NODES; i++) {
+ assert(node_fracs[i] <= BASIS);
+ phys_addr_t size = MEM_SIZE * node_fracs[i] / BASIS;
+
+ memblock_add_node(base, size, i, flags);
+ base += size;
+ }
+ fill_memblock();
+}
+
+void dummy_physical_memory_init(void)
+{
+ memory_block.base = malloc(MEM_SIZE);
+ assert(memory_block.base);
+ fill_memblock();
+}
+
+void dummy_physical_memory_cleanup(void)
+{
+ free(memory_block.base);
+}
+
+phys_addr_t dummy_physical_memory_base(void)
+{
+ return (phys_addr_t)memory_block.base;
+}
+
+static void usage(const char *prog)
+{
+ BUILD_BUG_ON(ARRAY_SIZE(help_opts) != ARRAY_SIZE(long_opts) - 1);
+
+ printf("Usage: %s [-%s]\n", prog, short_opts);
+
+ for (int i = 0; long_opts[i].name; i++) {
+ printf(" -%c, --%-12s\t%s\n", long_opts[i].val,
+ long_opts[i].name, help_opts[i]);
+ }
+
+ exit(1);
+}
+
+void parse_args(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt_long_only(argc, argv, short_opts, long_opts,
+ NULL)) != -1) {
+ switch (c) {
+ case 'm':
+ movable_node_enabled = true;
+ break;
+ case 'v':
+ verbose = 1;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+}
+
+void print_prefixes(const char *postfix)
+{
+ for (int i = 0; i < nr_prefixes; i++)
+ test_print("%s%s", prefixes[i], DELIM);
+ test_print(postfix);
+}
+
+void test_fail(void)
+{
+ if (verbose) {
+ ksft_test_result_fail(": ");
+ print_prefixes("failed\n");
+ }
+}
+
+void test_pass(void)
+{
+ if (verbose) {
+ ksft_test_result_pass(": ");
+ print_prefixes("passed\n");
+ }
+}
+
+void test_print(const char *fmt, ...)
+{
+ if (verbose) {
+ int saved_errno = errno;
+ va_list args;
+
+ va_start(args, fmt);
+ errno = saved_errno;
+ vprintf(fmt, args);
+ va_end(args);
+ }
+}
+
+void prefix_reset(void)
+{
+ memset(prefixes, 0, PREFIXES_MAX * sizeof(char *));
+ nr_prefixes = 0;
+}
+
+void prefix_push(const char *prefix)
+{
+ assert(nr_prefixes < PREFIXES_MAX);
+ prefixes[nr_prefixes] = prefix;
+ nr_prefixes++;
+}
+
+void prefix_pop(void)
+{
+ if (nr_prefixes > 0) {
+ prefixes[nr_prefixes - 1] = 0;
+ nr_prefixes--;
+ }
+}
diff --git a/tools/testing/memblock/tests/common.h b/tools/testing/memblock/tests/common.h
new file mode 100644
index 0000000000..b5ec59aa62
--- /dev/null
+++ b/tools/testing/memblock/tests/common.h
@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _MEMBLOCK_TEST_H
+#define _MEMBLOCK_TEST_H
+
+#include <stdlib.h>
+#include <assert.h>
+#include <linux/types.h>
+#include <linux/seq_file.h>
+#include <linux/memblock.h>
+#include <linux/sizes.h>
+#include <linux/printk.h>
+#include <../selftests/kselftest.h>
+
+#define MEM_SIZE SZ_32K
+#define NUMA_NODES 8
+
+#define INIT_MEMBLOCK_REGIONS 128
+#define INIT_MEMBLOCK_RESERVED_REGIONS INIT_MEMBLOCK_REGIONS
+
+enum test_flags {
+ /* No special request. */
+ TEST_F_NONE = 0x0,
+ /* Perform raw allocations (no zeroing of memory). */
+ TEST_F_RAW = 0x1,
+ /* Perform allocations on the exact node specified. */
+ TEST_F_EXACT = 0x2
+};
+
+/**
+ * ASSERT_EQ():
+ * Check the condition
+ * @_expected == @_seen
+ * If false, print failed test message (if running with --verbose) and then
+ * assert.
+ */
+#define ASSERT_EQ(_expected, _seen) do { \
+ if ((_expected) != (_seen)) \
+ test_fail(); \
+ assert((_expected) == (_seen)); \
+} while (0)
+
+/**
+ * ASSERT_NE():
+ * Check the condition
+ * @_expected != @_seen
+ * If false, print failed test message (if running with --verbose) and then
+ * assert.
+ */
+#define ASSERT_NE(_expected, _seen) do { \
+ if ((_expected) == (_seen)) \
+ test_fail(); \
+ assert((_expected) != (_seen)); \
+} while (0)
+
+/**
+ * ASSERT_LT():
+ * Check the condition
+ * @_expected < @_seen
+ * If false, print failed test message (if running with --verbose) and then
+ * assert.
+ */
+#define ASSERT_LT(_expected, _seen) do { \
+ if ((_expected) >= (_seen)) \
+ test_fail(); \
+ assert((_expected) < (_seen)); \
+} while (0)
+
+/**
+ * ASSERT_LE():
+ * Check the condition
+ * @_expected <= @_seen
+ * If false, print failed test message (if running with --verbose) and then
+ * assert.
+ */
+#define ASSERT_LE(_expected, _seen) do { \
+ if ((_expected) > (_seen)) \
+ test_fail(); \
+ assert((_expected) <= (_seen)); \
+} while (0)
+
+/**
+ * ASSERT_MEM_EQ():
+ * Check that the first @_size bytes of @_seen are all equal to @_expected.
+ * If false, print failed test message (if running with --verbose) and then
+ * assert.
+ */
+#define ASSERT_MEM_EQ(_seen, _expected, _size) do { \
+ for (int _i = 0; _i < (_size); _i++) { \
+ ASSERT_EQ(((char *)_seen)[_i], (_expected)); \
+ } \
+} while (0)
+
+/**
+ * ASSERT_MEM_NE():
+ * Check that none of the first @_size bytes of @_seen are equal to @_expected.
+ * If false, print failed test message (if running with --verbose) and then
+ * assert.
+ */
+#define ASSERT_MEM_NE(_seen, _expected, _size) do { \
+ for (int _i = 0; _i < (_size); _i++) { \
+ ASSERT_NE(((char *)_seen)[_i], (_expected)); \
+ } \
+} while (0)
+
+#define PREFIX_PUSH() prefix_push(__func__)
+
+/*
+ * Available memory registered with memblock needs to be valid for allocs
+ * test to run. This is a convenience wrapper for memory allocated in
+ * dummy_physical_memory_init() that is later registered with memblock
+ * in setup_memblock().
+ */
+struct test_memory {
+ void *base;
+};
+
+struct region {
+ phys_addr_t base;
+ phys_addr_t size;
+};
+
+static inline phys_addr_t __maybe_unused region_end(struct memblock_region *rgn)
+{
+ return rgn->base + rgn->size;
+}
+
+void reset_memblock_regions(void);
+void reset_memblock_attributes(void);
+void setup_memblock(void);
+void setup_numa_memblock(const unsigned int node_fracs[]);
+void dummy_physical_memory_init(void);
+void dummy_physical_memory_cleanup(void);
+phys_addr_t dummy_physical_memory_base(void);
+void parse_args(int argc, char **argv);
+
+void test_fail(void);
+void test_pass(void);
+void test_print(const char *fmt, ...);
+void prefix_reset(void);
+void prefix_push(const char *prefix);
+void prefix_pop(void);
+
+static inline void test_pass_pop(void)
+{
+ test_pass();
+ prefix_pop();
+}
+
+static inline void run_top_down(int (*func)())
+{
+ memblock_set_bottom_up(false);
+ prefix_push("top-down");
+ func();
+ prefix_pop();
+}
+
+static inline void run_bottom_up(int (*func)())
+{
+ memblock_set_bottom_up(true);
+ prefix_push("bottom-up");
+ func();
+ prefix_pop();
+}
+
+static inline void assert_mem_content(void *mem, int size, int flags)
+{
+ if (flags & TEST_F_RAW)
+ ASSERT_MEM_NE(mem, 0, size);
+ else
+ ASSERT_MEM_EQ(mem, 0, size);
+}
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 00:27:56 +0000