1 // SPDX-License-Identifier: GPL-2.0 AND MIT 2 /* 3 * Copyright © 2023 Intel Corporation 4 */ 5 6 #include <kunit/test.h> 7 8 static const struct lmtt_ops_param { 9 const char *desc; 10 const struct xe_lmtt_ops *ops; 11 } lmtt_ops_params[] = { 12 { "2-level", &lmtt_2l_ops, }, 13 { "multi-level", &lmtt_ml_ops, }, 14 }; 15 16 static void lmtt_ops_param_get_desc(const struct lmtt_ops_param *p, char *desc) 17 { 18 snprintf(desc, KUNIT_PARAM_DESC_SIZE, "%s", p->desc); 19 } 20 21 KUNIT_ARRAY_PARAM(lmtt_ops, lmtt_ops_params, lmtt_ops_param_get_desc); 22 23 static void test_ops(struct kunit *test) 24 { 25 const struct lmtt_ops_param *p = test->param_value; 26 const struct xe_lmtt_ops *ops = p->ops; 27 unsigned int n; 28 29 KUNIT_ASSERT_NOT_NULL(test, ops->lmtt_root_pd_level); 30 KUNIT_ASSERT_NOT_NULL(test, ops->lmtt_pte_num); 31 KUNIT_ASSERT_NOT_NULL(test, ops->lmtt_pte_size); 32 KUNIT_ASSERT_NOT_NULL(test, ops->lmtt_pte_shift); 33 KUNIT_ASSERT_NOT_NULL(test, ops->lmtt_pte_index); 34 KUNIT_ASSERT_NOT_NULL(test, ops->lmtt_pte_encode); 35 36 KUNIT_EXPECT_NE(test, ops->lmtt_root_pd_level(), 0); 37 38 for (n = 0; n <= ops->lmtt_root_pd_level(); n++) { 39 KUNIT_EXPECT_NE_MSG(test, ops->lmtt_pte_num(n), 0, 40 "level=%u", n); 41 KUNIT_EXPECT_NE_MSG(test, ops->lmtt_pte_size(n), 0, 42 "level=%u", n); 43 KUNIT_EXPECT_NE_MSG(test, ops->lmtt_pte_encode(0, n), LMTT_PTE_INVALID, 44 "level=%u", n); 45 } 46 47 for (n = 0; n < ops->lmtt_root_pd_level(); n++) { 48 u64 addr = BIT_ULL(ops->lmtt_pte_shift(n)); 49 50 KUNIT_EXPECT_NE_MSG(test, ops->lmtt_pte_shift(n), 0, 51 "level=%u", n); 52 KUNIT_EXPECT_EQ_MSG(test, ops->lmtt_pte_index(addr - 1, n), 0, 53 "addr=%#llx level=%u", addr, n); 54 KUNIT_EXPECT_EQ_MSG(test, ops->lmtt_pte_index(addr + 1, n), 1, 55 "addr=%#llx level=%u", addr, n); 56 KUNIT_EXPECT_EQ_MSG(test, ops->lmtt_pte_index(addr * 2 - 1, n), 1, 57 "addr=%#llx level=%u", addr, n); 58 KUNIT_EXPECT_EQ_MSG(test, ops->lmtt_pte_index(addr * 2, n), 2, 59 "addr=%#llx level=%u", addr, n); 60 } 61 } 62 63 static struct kunit_case lmtt_test_cases[] = { 64 KUNIT_CASE_PARAM(test_ops, lmtt_ops_gen_params), 65 {} 66 }; 67 68 static struct kunit_suite lmtt_suite = { 69 .name = "lmtt", 70 .test_cases = lmtt_test_cases, 71 }; 72 73 kunit_test_suites(&lmtt_suite); 74