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-rw-r--r--test/lib/lmb.c165
1 files changed, 136 insertions, 29 deletions
diff --git a/test/lib/lmb.c b/test/lib/lmb.c
index fcb5f1af532..3bf558f7f4f 100644
--- a/test/lib/lmb.c
+++ b/test/lib/lmb.c
@@ -471,17 +471,17 @@ static int lib_test_lmb_overlapping_reserve(struct unit_test_state *uts)
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, 0x40010000, 0x10000,
0, 0, 0, 0);
- /* allocate overlapping region should return the coalesced count */
+ /* allocate overlapping region */
ret = lmb_reserve(0x40011000, 0x10000, LMB_NONE);
ut_asserteq(ret, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, 0x40010000, 0x11000,
0, 0, 0, 0);
- /* allocate 3nd region */
+ /* allocate 2nd region */
ret = lmb_reserve(0x40030000, 0x10000, LMB_NONE);
ut_asserteq(ret, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, 0x40010000, 0x11000,
0x40030000, 0x10000, 0, 0);
- /* allocate 2nd region , This should coalesced all region into one */
+ /* allocate 3rd region , This should coalesce all regions into one */
ret = lmb_reserve(0x40020000, 0x10000, LMB_NONE);
ut_assert(ret >= 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, 0x40010000, 0x30000,
@@ -499,6 +499,41 @@ static int lib_test_lmb_overlapping_reserve(struct unit_test_state *uts)
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, 0x40000000, 0x40000,
0, 0, 0, 0);
+ /* try to allocate overlapping region with a different flag, should fail */
+ ret = lmb_reserve(0x40008000, 0x1000, LMB_NOOVERWRITE);
+ ut_asserteq(ret, -EEXIST);
+
+ /* allocate another region at 0x40050000 with a different flag */
+ ret = lmb_reserve(0x40050000, 0x10000, LMB_NOOVERWRITE);
+ ut_asserteq(ret, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, 0x40000000, 0x40000,
+ 0x40050000, 0x10000, 0, 0);
+
+ /*
+ * try to reserve a region adjacent to region 1 overlapping the 2nd region,
+ * should fail
+ */
+ ret = lmb_reserve(0x40040000, 0x20000, LMB_NONE);
+ ut_asserteq(ret, -EEXIST);
+
+ /*
+ * try to reserve a region between the two regions, but without an overlap,
+ * should succeed. this added region coalesces with the region 1
+ */
+ ret = lmb_reserve(0x40040000, 0x10000, LMB_NONE);
+ ut_asserteq(ret, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, 0x40000000, 0x50000,
+ 0x40050000, 0x10000, 0, 0);
+
+ /*
+ * try to reserve a region which overlaps with both the regions,
+ * should fail as the flags do not match
+ */
+ ret = lmb_reserve(0x40020000, 0x80000, LMB_NONE);
+ ut_asserteq(ret, -EEXIST);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, 0x40000000, 0x50000,
+ 0x40050000, 0x10000, 0, 0);
+
lmb_pop(&store);
return 0;
@@ -531,23 +566,94 @@ static int test_alloc_addr(struct unit_test_state *uts, const phys_addr_t ram)
/* Try to allocate a page twice */
b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NONE);
- ut_asserteq(b, alloc_addr_a);
- b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NOOVERWRITE);
ut_asserteq(b, 0);
+ b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NOOVERWRITE);
+ ut_asserteq(b, -1);
b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NONE);
- ut_asserteq(b, alloc_addr_a);
+ ut_asserteq(b, 0);
b = lmb_alloc_addr(alloc_addr_a, 0x2000, LMB_NONE);
- ut_asserteq(b, alloc_addr_a);
+ ut_asserteq(b, 0);
ret = lmb_free(alloc_addr_a, 0x2000);
ut_asserteq(ret, 0);
b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NOOVERWRITE);
- ut_asserteq(b, alloc_addr_a);
- b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NONE);
ut_asserteq(b, 0);
+ b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NONE);
+ ut_asserteq(b, -1);
b = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NOOVERWRITE);
+ ut_asserteq(b, -1);
+ ret = lmb_free(alloc_addr_a, 0x1000);
+ ut_asserteq(ret, 0);
+
+ /*
+ * Add two regions with different flags, region1 and region2 with
+ * a gap between them.
+ * Try adding another region, adjacent to region 1 and overlapping
+ * region 2. Should fail.
+ */
+ a = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NONE);
+ ut_asserteq(a, 0);
+
+ b = lmb_alloc_addr(alloc_addr_a + 0x4000, 0x1000, LMB_NOOVERWRITE);
ut_asserteq(b, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, alloc_addr_a, 0x1000,
+ alloc_addr_a + 0x4000, 0x1000, 0, 0);
+
+ c = lmb_alloc_addr(alloc_addr_a + 0x1000, 0x5000, LMB_NONE);
+ ut_asserteq(c, -1);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, alloc_addr_a, 0x1000,
+ alloc_addr_a + 0x4000, 0x1000, 0, 0);
+
ret = lmb_free(alloc_addr_a, 0x1000);
ut_asserteq(ret, 0);
+ ret = lmb_free(alloc_addr_a + 0x4000, 0x1000);
+ ut_asserteq(ret, 0);
+
+ /*
+ * Add two regions with same flags(LMB_NONE), region1 and region2
+ * with a gap between them.
+ * Try adding another region, adjacent to region 1 and overlapping
+ * region 2. Should succeed. All regions should coalesce into a
+ * single region.
+ */
+ a = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NONE);
+ ut_asserteq(a, 0);
+
+ b = lmb_alloc_addr(alloc_addr_a + 0x4000, 0x1000, LMB_NONE);
+ ut_asserteq(b, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, alloc_addr_a, 0x1000,
+ alloc_addr_a + 0x4000, 0x1000, 0, 0);
+
+ c = lmb_alloc_addr(alloc_addr_a + 0x1000, 0x5000, LMB_NONE);
+ ut_asserteq(c, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, alloc_addr_a, 0x6000,
+ 0, 0, 0, 0);
+
+ ret = lmb_free(alloc_addr_a, 0x6000);
+ ut_asserteq(ret, 0);
+
+ /*
+ * Add two regions with same flags(LMB_NOOVERWRITE), region1 and
+ * region2 with a gap between them.
+ * Try adding another region, adjacent to region 1 and overlapping
+ * region 2. Should fail.
+ */
+ a = lmb_alloc_addr(alloc_addr_a, 0x1000, LMB_NOOVERWRITE);
+ ut_asserteq(a, 0);
+
+ b = lmb_alloc_addr(alloc_addr_a + 0x4000, 0x1000, LMB_NOOVERWRITE);
+ ut_asserteq(b, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, alloc_addr_a, 0x1000,
+ alloc_addr_a + 0x4000, 0x1000, 0, 0);
+
+ c = lmb_alloc_addr(alloc_addr_a + 0x1000, 0x5000, LMB_NOOVERWRITE);
+ ut_asserteq(c, -1);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, alloc_addr_a, 0x1000,
+ alloc_addr_a + 0x4000, 0x1000, 0, 0);
+
+ ret = lmb_free(alloc_addr_a, 0x1000);
+ ut_asserteq(ret, 0);
+ ret = lmb_free(alloc_addr_a + 0x4000, 0x1000);
+ ut_asserteq(ret, 0);
/* reserve 3 blocks */
ret = lmb_reserve(alloc_addr_a, 0x10000, LMB_NONE);
@@ -561,22 +667,22 @@ static int test_alloc_addr(struct unit_test_state *uts, const phys_addr_t ram)
/* allocate blocks */
a = lmb_alloc_addr(ram, alloc_addr_a - ram, LMB_NONE);
- ut_asserteq(a, ram);
+ ut_asserteq(a, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 3, ram, 0x8010000,
alloc_addr_b, 0x10000, alloc_addr_c, 0x10000);
b = lmb_alloc_addr(alloc_addr_a + 0x10000,
alloc_addr_b - alloc_addr_a - 0x10000, LMB_NONE);
- ut_asserteq(b, alloc_addr_a + 0x10000);
+ ut_asserteq(b, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, ram, 0x10010000,
alloc_addr_c, 0x10000, 0, 0);
c = lmb_alloc_addr(alloc_addr_b + 0x10000,
alloc_addr_c - alloc_addr_b - 0x10000, LMB_NONE);
- ut_asserteq(c, alloc_addr_b + 0x10000);
+ ut_asserteq(c, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, 0x18010000,
0, 0, 0, 0);
d = lmb_alloc_addr(alloc_addr_c + 0x10000,
ram_end - alloc_addr_c - 0x10000, LMB_NONE);
- ut_asserteq(d, alloc_addr_c + 0x10000);
+ ut_asserteq(d, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, ram_size,
0, 0, 0, 0);
@@ -586,57 +692,58 @@ static int test_alloc_addr(struct unit_test_state *uts, const phys_addr_t ram)
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, ram_size,
0, 0, 0, 0);
- ret = lmb_free(d, ram_end - alloc_addr_c - 0x10000);
+ /* free thge allocation from d */
+ ret = lmb_free(alloc_addr_c + 0x10000, ram_end - alloc_addr_c - 0x10000);
ut_asserteq(ret, 0);
/* allocate at 3 points in free range */
d = lmb_alloc_addr(ram_end - 4, 4, LMB_NONE);
- ut_asserteq(d, ram_end - 4);
+ ut_asserteq(d, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, ram, 0x18010000,
- d, 4, 0, 0);
- ret = lmb_free(d, 4);
+ ram_end - 4, 4, 0, 0);
+ ret = lmb_free(ram_end - 4, 4);
ut_asserteq(ret, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, 0x18010000,
0, 0, 0, 0);
d = lmb_alloc_addr(ram_end - 128, 4, LMB_NONE);
- ut_asserteq(d, ram_end - 128);
+ ut_asserteq(d, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, ram, 0x18010000,
- d, 4, 0, 0);
- ret = lmb_free(d, 4);
+ ram_end - 128, 4, 0, 0);
+ ret = lmb_free(ram_end - 128, 4);
ut_asserteq(ret, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, 0x18010000,
0, 0, 0, 0);
d = lmb_alloc_addr(alloc_addr_c + 0x10000, 4, LMB_NONE);
- ut_asserteq(d, alloc_addr_c + 0x10000);
+ ut_asserteq(d, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, 0x18010004,
0, 0, 0, 0);
- ret = lmb_free(d, 4);
+ ret = lmb_free(alloc_addr_c + 0x10000, 4);
ut_asserteq(ret, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram, 0x18010000,
0, 0, 0, 0);
- /* allocate at the bottom */
- ret = lmb_free(a, alloc_addr_a - ram);
+ /* allocate at the bottom a was assigned to ram at the top */
+ ret = lmb_free(ram, alloc_addr_a - ram);
ut_asserteq(ret, 0);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, ram + 0x8000000,
0x10010000, 0, 0, 0, 0);
d = lmb_alloc_addr(ram, 4, LMB_NONE);
- ut_asserteq(d, ram);
- ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, d, 4,
+ ut_asserteq(d, 0);
+ ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 2, ram, 4,
ram + 0x8000000, 0x10010000, 0, 0);
/* check that allocating outside memory fails */
if (ram_end != 0) {
ret = lmb_alloc_addr(ram_end, 1, LMB_NONE);
- ut_asserteq(ret, 0);
+ ut_asserteq(ret, -1);
}
if (ram != 0) {
ret = lmb_alloc_addr(ram - 1, 1, LMB_NONE);
- ut_asserteq(ret, 0);
+ ut_asserteq(ret, -1);
}
lmb_pop(&store);
@@ -760,7 +867,7 @@ static int lib_test_lmb_flags(struct unit_test_state *uts)
/* reserve again, new flag */
ret = lmb_reserve(0x40010000, 0x10000, LMB_NONE);
- ut_asserteq(ret, -1);
+ ut_asserteq(ret, -EEXIST);
ASSERT_LMB(mem_lst, used_lst, ram, ram_size, 1, 0x40010000, 0x10000,
0, 0, 0, 0);
generated by cgit v1.2.3 (git 2.0.4) at 2025-07-25 14:44:28 +0000