test: lmb: Add test for coalescing and overlap range

Add test case for an address range which is coalescing with one of
range and overlapping with next range

Cc: Simon Glass <[email protected]>
Signed-off-by: Udit Kumar <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

diff --git a/test/lib/lmb.c b/test/lib/lmb.c
index 162887503588e89ccc7cc7fe156a453d2957597a..15c68ce3961b19a8b80308ca78b882b3443fb438 100644 (file)
--- a/test/lib/lmb.c
+++ b/test/lib/lmb.c
@@ -451,12 +451,23 @@ static int lib_test_lmb_overlapping_reserve(struct unit_test_state *uts)
        ut_asserteq(ret, 0);
        ASSERT_LMB(&lmb, ram, ram_size, 2, 0x40010000, 0x10000,
                   0x40030000, 0x10000, 0, 0);
-       /* allocate 2nd region */
+       /* allocate 2nd region , This should coalesced all region into one */
        ret = lmb_reserve(&lmb, 0x40020000, 0x10000);
        ut_assert(ret >= 0);
        ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40010000, 0x30000,
                   0, 0, 0, 0);
 
+       /* allocate 2nd region, which should be added as first region */
+       ret = lmb_reserve(&lmb, 0x40000000, 0x8000);
+       ut_assert(ret >= 0);
+       ASSERT_LMB(&lmb, ram, ram_size, 2, 0x40000000, 0x8000,
+                  0x40010000, 0x30000, 0, 0);
+
+       /* allocate 3rd region, coalesce with first and overlap with second */
+       ret = lmb_reserve(&lmb, 0x40008000, 0x10000);
+       ut_assert(ret >= 0);
+       ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40000000, 0x40000,
+                  0, 0, 0, 0);
        return 0;
 }