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test: lmb: Rework lib_test_lmb_max_regions test to scale

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First, this test depends on CONFIG_LMB_USE_MAX_REGIONS, so add that as a
test before building. Second, instead of using a hard-coded value of 8,
which is the default of CONFIG_LMB_USE_MAX_REGIONS previously, use that
directly and update the comments. The only trick here is that one part
of the test itself also was written with the value of 8 itself in mind.
Rework the size of the lmb region we allocate to scale with the value of
CONFIG_LMB_USE_MAX_REGIONS.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Tom Rini 2023-02-08 13:39:18 -05:00
parent 948d3999bf
commit 1975a3b1f6
1 changed files with 26 additions and 18 deletions
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44
test/lib/lmb.c
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@ -665,10 +665,17 @@ static int lib_test_lmb_get_free_size(struct unit_test_state *uts)
DM_TEST(lib_test_lmb_get_free_size,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
#ifdef CONFIG_LMB_USE_MAX_REGIONS
static int lib_test_lmb_max_regions(struct unit_test_state *uts)
{
const phys_addr_t ram = 0x00000000;
const phys_size_t ram_size = 0x8000000;
/*
* All of 32bit memory space will contain regions for this test, so
* we need to scale ram_size (which in this case is the size of the lmb
* region) to match.
*/
const phys_size_t ram_size = ((0xFFFFFFFF >> CONFIG_LMB_MAX_REGIONS)
+ 1) * CONFIG_LMB_MAX_REGIONS;
const phys_size_t blk_size = 0x10000;
phys_addr_t offset;
struct lmb lmb;
@ -677,54 +684,55 @@ static int lib_test_lmb_max_regions(struct unit_test_state *uts)
lmb_init(&lmb);
ut_asserteq(lmb.memory.cnt, 0);
ut_asserteq(lmb.memory.max, 8);
ut_asserteq(lmb.memory.max, CONFIG_LMB_MAX_REGIONS);
ut_asserteq(lmb.reserved.cnt, 0);
ut_asserteq(lmb.reserved.max, 8);
ut_asserteq(lmb.reserved.max, CONFIG_LMB_MAX_REGIONS);
/* Add 8 memory regions */
for (i = 0; i < 8; i++) {
/* Add CONFIG_LMB_MAX_REGIONS memory regions */
for (i = 0; i < CONFIG_LMB_MAX_REGIONS; i++) {
offset = ram + 2 * i * ram_size;
ret = lmb_add(&lmb, offset, ram_size);
ut_asserteq(ret, 0);
}
ut_asserteq(lmb.memory.cnt, 8);
ut_asserteq(lmb.memory.cnt, CONFIG_LMB_MAX_REGIONS);
ut_asserteq(lmb.reserved.cnt, 0);
/* error for the 9th memory regions */
offset = ram + 2 * 8 * ram_size;
/* error for the (CONFIG_LMB_MAX_REGIONS + 1) memory regions */
offset = ram + 2 * (CONFIG_LMB_MAX_REGIONS + 1) * ram_size;
ret = lmb_add(&lmb, offset, ram_size);
ut_asserteq(ret, -1);
ut_asserteq(lmb.memory.cnt, 8);
ut_asserteq(lmb.memory.cnt, CONFIG_LMB_MAX_REGIONS);
ut_asserteq(lmb.reserved.cnt, 0);
/* reserve 8 regions */
for (i = 0; i < 8; i++) {
/* reserve CONFIG_LMB_MAX_REGIONS regions */
for (i = 0; i < CONFIG_LMB_MAX_REGIONS; i++) {
offset = ram + 2 * i * blk_size;
ret = lmb_reserve(&lmb, offset, blk_size);
ut_asserteq(ret, 0);
}
ut_asserteq(lmb.memory.cnt, 8);
ut_asserteq(lmb.reserved.cnt, 8);
ut_asserteq(lmb.memory.cnt, CONFIG_LMB_MAX_REGIONS);
ut_asserteq(lmb.reserved.cnt, CONFIG_LMB_MAX_REGIONS);
/* error for the 9th reserved blocks */
offset = ram + 2 * 8 * blk_size;
offset = ram + 2 * (CONFIG_LMB_MAX_REGIONS + 1) * blk_size;
ret = lmb_reserve(&lmb, offset, blk_size);
ut_asserteq(ret, -1);
ut_asserteq(lmb.memory.cnt, 8);
ut_asserteq(lmb.reserved.cnt, 8);
ut_asserteq(lmb.memory.cnt, CONFIG_LMB_MAX_REGIONS);
ut_asserteq(lmb.reserved.cnt, CONFIG_LMB_MAX_REGIONS);
/* check each regions */
for (i = 0; i < 8; i++)
for (i = 0; i < CONFIG_LMB_MAX_REGIONS; i++)
ut_asserteq(lmb.memory.region[i].base, ram + 2 * i * ram_size);
for (i = 0; i < 8; i++)
for (i = 0; i < CONFIG_LMB_MAX_REGIONS; i++)
ut_asserteq(lmb.reserved.region[i].base, ram + 2 * i * blk_size);
return 0;
}
#endif
DM_TEST(lib_test_lmb_max_regions,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);