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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2020 NXP */ #include <dm.h> #include <asm/global_data.h> #include <dm/of_extra.h> #include <dm/test.h> #include <test/ut.h> DECLARE_GLOBAL_DATA_PTR; static int dm_test_fdtdec_set_carveout(struct unit_test_state *uts) { struct fdt_memory resv; void *blob; const fdt32_t *prop; int blob_sz, len, offset; blob_sz = fdt_totalsize(gd->fdt_blob) + 4096; blob = malloc(blob_sz); ut_assertnonnull(blob); /* Make a writable copy of the fdt blob */ ut_assertok(fdt_open_into(gd->fdt_blob, blob, blob_sz)); resv.start = 0x1000; resv.end = 0x2000; ut_assertok(fdtdec_set_carveout(blob, "/a-test", "memory-region", 2, &resv, "test_resv1", NULL, 0, 0)); resv.start = 0x10000; resv.end = 0x20000; ut_assertok(fdtdec_set_carveout(blob, "/a-test", "memory-region", 1, &resv, "test_resv2", NULL, 0, 0)); resv.start = 0x100000; resv.end = 0x200000; ut_assertok(fdtdec_set_carveout(blob, "/a-test", "memory-region", 0, &resv, "test_resv3", NULL, 0, 0)); offset = fdt_path_offset(blob, "/a-test"); ut_assert(offset > 0); prop = fdt_getprop(blob, offset, "memory-region", &len); ut_assertnonnull(prop); ut_asserteq(len, 12); ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[0])) > 0); ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[1])) > 0); ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[2])) > 0); free(blob); return 0; } DM_TEST(dm_test_fdtdec_set_carveout, UTF_SCAN_PDATA | UTF_SCAN_FDT | UTF_FLAT_TREE); static int dm_test_fdtdec_add_reserved_memory(struct unit_test_state *uts) { struct fdt_memory resv; fdt_addr_t addr; fdt_size_t size; void *blob; unsigned long flags = FDTDEC_RESERVED_MEMORY_NO_MAP; int blob_sz, parent, subnode; uint32_t phandle, phandle1; blob_sz = fdt_totalsize(gd->fdt_blob) + 128; blob = malloc(blob_sz); ut_assertnonnull(blob); /* Make a writable copy of the fdt blob */ ut_assertok(fdt_open_into(gd->fdt_blob, blob, blob_sz)); /* Insert a memory region in /reserved-memory node */ resv.start = 0x1000; resv.end = 0x1fff; ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region", &resv, NULL, 0, &phandle, 0)); /* Test /reserve-memory and its subnode should exist */ parent = fdt_path_offset(blob, "/reserved-memory"); ut_assert(parent > 0); subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region"); ut_assert(subnode > 0); /* Test reg property of /reserved-memory/rsvd_region node */ addr = fdtdec_get_addr_size_auto_parent(blob, parent, subnode, "reg", 0, &size, false); ut_assert(addr == resv.start); ut_assert(size == resv.end - resv.start + 1); /* Insert another memory region in /reserved-memory node */ subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region1"); ut_assert(subnode < 0); resv.start = 0x2000; resv.end = 0x2fff; ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region1", &resv, NULL, 0, &phandle1, flags)); subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region1"); ut_assert(subnode > 0); /* check that no-map property is present */ ut_assert(fdt_getprop(blob, subnode, "no-map", NULL) > 0); /* phandles must be different */ ut_assert(phandle != phandle1); /* * Insert a 3rd memory region with the same addr/size as the 1st one, * but a new node should not be inserted due to the same addr/size. */ resv.start = 0x1000; resv.end = 0x1fff; ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region2", &resv, NULL, 0, &phandle1, 0)); subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region2"); ut_assert(subnode < 0); /* phandle must be same as the 1st one */ ut_assert(phandle == phandle1); free(blob); return 0; } DM_TEST(dm_test_fdtdec_add_reserved_memory, UTF_SCAN_PDATA | UTF_SCAN_FDT | UTF_FLAT_TREE); |