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test: lmb: add test for lmb_reserve_flags

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Add a test to check the management of reserved region with flags.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrick Delaunay 2021-05-07 14:50:32 +02:00 committed by Tom Rini
parent 358c7789af
commit 7d08a3dd02
1 changed files with 89 additions and 0 deletions
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89
test/lib/lmb.c
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@ -723,3 +723,92 @@ static int lib_test_lmb_max_regions(struct unit_test_state *uts)
DM_TEST(lib_test_lmb_max_regions,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
static int lib_test_lmb_flags(struct unit_test_state *uts)
{
const phys_addr_t ram = 0x40000000;
const phys_size_t ram_size = 0x20000000;
struct lmb lmb;
long ret;
lmb_init(&lmb);
ret = lmb_add(&lmb, ram, ram_size);
ut_asserteq(ret, 0);
/* reserve, same flag */
ret = lmb_reserve_flags(&lmb, 0x40010000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 0);
ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40010000, 0x10000,
0, 0, 0, 0);
/* reserve again, same flag */
ret = lmb_reserve_flags(&lmb, 0x40010000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 0);
ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40010000, 0x10000,
0, 0, 0, 0);
/* reserve again, new flag */
ret = lmb_reserve_flags(&lmb, 0x40010000, 0x10000, LMB_NONE);
ut_asserteq(ret, -1);
ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40010000, 0x10000,
0, 0, 0, 0);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[0]), 1);
/* merge after */
ret = lmb_reserve_flags(&lmb, 0x40020000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 1);
ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40010000, 0x20000,
0, 0, 0, 0);
/* merge before */
ret = lmb_reserve_flags(&lmb, 0x40000000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 1);
ASSERT_LMB(&lmb, ram, ram_size, 1, 0x40000000, 0x30000,
0, 0, 0, 0);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[0]), 1);
ret = lmb_reserve_flags(&lmb, 0x40030000, 0x10000, LMB_NONE);
ut_asserteq(ret, 0);
ASSERT_LMB(&lmb, ram, ram_size, 2, 0x40000000, 0x30000,
0x40030000, 0x10000, 0, 0);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[0]), 1);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[1]), 0);
/* test that old API use LMB_NONE */
ret = lmb_reserve(&lmb, 0x40040000, 0x10000);
ut_asserteq(ret, 1);
ASSERT_LMB(&lmb, ram, ram_size, 2, 0x40000000, 0x30000,
0x40030000, 0x20000, 0, 0);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[0]), 1);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[1]), 0);
ret = lmb_reserve_flags(&lmb, 0x40070000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 0);
ASSERT_LMB(&lmb, ram, ram_size, 3, 0x40000000, 0x30000,
0x40030000, 0x20000, 0x40070000, 0x10000);
ret = lmb_reserve_flags(&lmb, 0x40050000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 0);
ASSERT_LMB(&lmb, ram, ram_size, 4, 0x40000000, 0x30000,
0x40030000, 0x20000, 0x40050000, 0x10000);
/* merge with 2 adjacent regions */
ret = lmb_reserve_flags(&lmb, 0x40060000, 0x10000, LMB_NOMAP);
ut_asserteq(ret, 2);
ASSERT_LMB(&lmb, ram, ram_size, 3, 0x40000000, 0x30000,
0x40030000, 0x20000, 0x40050000, 0x30000);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[0]), 1);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[1]), 0);
ut_asserteq(lmb_is_nomap(&lmb.reserved.region[2]), 1);
return 0;
}
DM_TEST(lib_test_lmb_flags,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);