From dc57be51e9dcdb67325b62e7da7992cca9854e0f Mon Sep 17 00:00:00 2001 From: Simon Goldschmidt Date: Fri, 1 Feb 2019 21:23:59 +0100 Subject: [PATCH] test: lib: lmb: add lmb test for multiple RAM banks This adds one test case that checks that allocation with multiple DRAM banks works correctly. Signed-off-by: Simon Goldschmidt Reviewed-by: Simon Glass --- test/lib/lmb.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 75 insertions(+), 19 deletions(-) diff --git a/test/lib/lmb.c b/test/lib/lmb.c index 9a22852..ec68227 100644 --- a/test/lib/lmb.c +++ b/test/lib/lmb.c @@ -15,9 +15,11 @@ static int check_lmb(struct unit_test_state *uts, struct lmb *lmb, phys_addr_t base2, phys_size_t size2, phys_addr_t base3, phys_size_t size3) { - ut_asserteq(lmb->memory.cnt, 1); - ut_asserteq(lmb->memory.region[0].base, ram_base); - ut_asserteq(lmb->memory.region[0].size, ram_size); + if (ram_size) { + ut_asserteq(lmb->memory.cnt, 1); + ut_asserteq(lmb->memory.region[0].base, ram_base); + ut_asserteq(lmb->memory.region[0].size, ram_size); + } ut_asserteq(lmb->reserved.cnt, num_reserved); if (num_reserved > 0) { @@ -45,8 +47,9 @@ static int check_lmb(struct unit_test_state *uts, struct lmb *lmb, * Test helper function that reserves 64 KiB somewhere in the simulated RAM and * then does some alloc + free tests. */ -static int test_multi_alloc(struct unit_test_state *uts, - const phys_addr_t ram, const phys_size_t ram_size, +static int test_multi_alloc(struct unit_test_state *uts, const phys_addr_t ram, + const phys_size_t ram_size, const phys_addr_t ram0, + const phys_size_t ram0_size, const phys_addr_t alloc_64k_addr) { const phys_addr_t ram_end = ram + ram_size; @@ -65,82 +68,119 @@ static int test_multi_alloc(struct unit_test_state *uts, lmb_init(&lmb); + if (ram0_size) { + ret = lmb_add(&lmb, ram0, ram0_size); + ut_asserteq(ret, 0); + } + ret = lmb_add(&lmb, ram, ram_size); ut_asserteq(ret, 0); + if (ram0_size) { + ut_asserteq(lmb.memory.cnt, 2); + ut_asserteq(lmb.memory.region[0].base, ram0); + ut_asserteq(lmb.memory.region[0].size, ram0_size); + ut_asserteq(lmb.memory.region[1].base, ram); + ut_asserteq(lmb.memory.region[1].size, ram_size); + } else { + ut_asserteq(lmb.memory.cnt, 1); + ut_asserteq(lmb.memory.region[0].base, ram); + ut_asserteq(lmb.memory.region[0].size, ram_size); + } + /* reserve 64KiB somewhere */ ret = lmb_reserve(&lmb, alloc_64k_addr, 0x10000); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 1, alloc_64k_addr, 0x10000, + ASSERT_LMB(&lmb, 0, 0, 1, alloc_64k_addr, 0x10000, 0, 0, 0, 0); /* allocate somewhere, should be at the end of RAM */ a = lmb_alloc(&lmb, 4, 1); ut_asserteq(a, ram_end - 4); - ASSERT_LMB(&lmb, ram, ram_size, 2, alloc_64k_addr, 0x10000, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr, 0x10000, ram_end - 4, 4, 0, 0); /* alloc below end of reserved region -> below reserved region */ b = lmb_alloc_base(&lmb, 4, 1, alloc_64k_end); ut_asserteq(b, alloc_64k_addr - 4); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 4, 0x10000 + 4, ram_end - 4, 4, 0, 0); /* 2nd time */ c = lmb_alloc(&lmb, 4, 1); ut_asserteq(c, ram_end - 8); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 4, 0x10000 + 4, ram_end - 8, 8, 0, 0); d = lmb_alloc_base(&lmb, 4, 1, alloc_64k_end); ut_asserteq(d, alloc_64k_addr - 8); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 8, 0x10000 + 8, ram_end - 8, 8, 0, 0); ret = lmb_free(&lmb, a, 4); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 8, 0x10000 + 8, ram_end - 8, 4, 0, 0); /* allocate again to ensure we get the same address */ a2 = lmb_alloc(&lmb, 4, 1); ut_asserteq(a, a2); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 8, 0x10000 + 8, ram_end - 8, 8, 0, 0); ret = lmb_free(&lmb, a2, 4); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 8, 0x10000 + 8, ram_end - 8, 4, 0, 0); ret = lmb_free(&lmb, b, 4); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 3, + ASSERT_LMB(&lmb, 0, 0, 3, alloc_64k_addr - 8, 4, alloc_64k_addr, 0x10000, ram_end - 8, 4); /* allocate again to ensure we get the same address */ b2 = lmb_alloc_base(&lmb, 4, 1, alloc_64k_end); ut_asserteq(b, b2); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 8, 0x10000 + 8, ram_end - 8, 4, 0, 0); ret = lmb_free(&lmb, b2, 4); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 3, + ASSERT_LMB(&lmb, 0, 0, 3, alloc_64k_addr - 8, 4, alloc_64k_addr, 0x10000, ram_end - 8, 4); ret = lmb_free(&lmb, c, 4); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 2, + ASSERT_LMB(&lmb, 0, 0, 2, alloc_64k_addr - 8, 4, alloc_64k_addr, 0x10000, 0, 0); ret = lmb_free(&lmb, d, 4); ut_asserteq(ret, 0); - ASSERT_LMB(&lmb, ram, ram_size, 1, alloc_64k_addr, 0x10000, + ASSERT_LMB(&lmb, 0, 0, 1, alloc_64k_addr, 0x10000, 0, 0, 0, 0); + if (ram0_size) { + ut_asserteq(lmb.memory.cnt, 2); + ut_asserteq(lmb.memory.region[0].base, ram0); + ut_asserteq(lmb.memory.region[0].size, ram0_size); + ut_asserteq(lmb.memory.region[1].base, ram); + ut_asserteq(lmb.memory.region[1].size, ram_size); + } else { + ut_asserteq(lmb.memory.cnt, 1); + ut_asserteq(lmb.memory.region[0].base, ram); + ut_asserteq(lmb.memory.region[0].size, ram_size); + } + return 0; } static int test_multi_alloc_512mb(struct unit_test_state *uts, const phys_addr_t ram) { - return test_multi_alloc(uts, ram, 0x20000000, ram + 0x10000000); + return test_multi_alloc(uts, ram, 0x20000000, 0, 0, ram + 0x10000000); +} + +static int test_multi_alloc_512mb_x2(struct unit_test_state *uts, + const phys_addr_t ram, + const phys_addr_t ram0) +{ + return test_multi_alloc(uts, ram, 0x20000000, ram0, 0x20000000, + ram + 0x10000000); } /* Create a memory region with one reserved region and allocate */ @@ -159,6 +199,22 @@ static int lib_test_lmb_simple(struct unit_test_state *uts) DM_TEST(lib_test_lmb_simple, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); +/* Create two memory regions with one reserved region and allocate */ +static int lib_test_lmb_simple_x2(struct unit_test_state *uts) +{ + int ret; + + /* simulate 512 MiB RAM beginning at 2GiB and 1 GiB */ + ret = test_multi_alloc_512mb_x2(uts, 0x80000000, 0x40000000); + if (ret) + return ret; + + /* simulate 512 MiB RAM beginning at 3.5GiB and 1 GiB */ + return test_multi_alloc_512mb_x2(uts, 0xE0000000, 0x40000000); +} + +DM_TEST(lib_test_lmb_simple_x2, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + /* Simulate 512 MiB RAM, allocate some blocks that fit/don't fit */ static int test_bigblock(struct unit_test_state *uts, const phys_addr_t ram) { -- 2.7.4