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283628c4 NSJ |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Copyright (c) 2020 Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | |
4 | */ | |
5 | ||
283628c4 NSJ |
6 | #include <dm.h> |
7 | #include <dm/device.h> | |
8 | #include <dm/ofnode.h> | |
9 | #include <dm/root.h> | |
10 | #include <dm/test.h> | |
11 | #include <dm/uclass-internal.h> | |
12 | #include <test/ut.h> | |
13 | ||
14 | static int dm_test_dma_ranges(struct unit_test_state *uts) | |
15 | { | |
16 | struct udevice *dev; | |
17 | phys_addr_t cpu; | |
18 | dma_addr_t bus; | |
19 | ofnode node; | |
20 | u64 size; | |
21 | ||
22 | /* dma-ranges are on the device's node */ | |
23 | node = ofnode_path("/mmio-bus@0"); | |
24 | ut_assert(ofnode_valid(node)); | |
25 | ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_BUS, node, &dev)); | |
26 | ut_assertok(dev_get_dma_range(dev, &cpu, &bus, &size)); | |
27 | ut_asserteq_64(0x40000, size); | |
28 | ut_asserteq_64(0x0, cpu); | |
29 | ut_asserteq_64(0x10000000, bus); | |
30 | ||
31 | /* dma-ranges are on the bus' node */ | |
32 | node = ofnode_path("/mmio-bus@0/subnode@0"); | |
33 | ut_assert(ofnode_valid(node)); | |
34 | ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_FDT, node, &dev)); | |
35 | ut_assertok(dev_get_dma_range(dev, &cpu, &bus, &size)); | |
36 | ut_asserteq_64(0x40000, size); | |
37 | ut_asserteq_64(0x0, cpu); | |
38 | ut_asserteq_64(0x10000000, bus); | |
39 | ||
40 | /* No dma-ranges available */ | |
41 | node = ofnode_path("/mmio-bus@1"); | |
42 | ut_assert(ofnode_valid(node)); | |
43 | ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_BUS, node, &dev)); | |
44 | ut_asserteq(-ENOENT, dev_get_dma_range(dev, &cpu, &bus, &size)); | |
45 | ||
46 | return 0; | |
47 | } | |
48 | DM_TEST(dm_test_dma_ranges, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); |