diff options
Diffstat (limited to 'drivers/of/unittest.c')
| -rw-r--r-- | drivers/of/unittest.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 42b411f32b1b..438fd70fa995 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -1213,6 +1213,44 @@ static void __init of_unittest_pci_dma_ranges(void) of_node_put(np); } +static void __init of_unittest_pci_empty_dma_ranges(void) +{ + struct device_node *np; + struct of_pci_range range; + struct of_pci_range_parser parser; + + if (!IS_ENABLED(CONFIG_PCI)) + return; + + np = of_find_node_by_path("/testcase-data/address-tests2/pcie@d1070000/pci@0,0/dev@0,0/local-bus@0"); + if (!np) { + pr_err("missing testcase data\n"); + return; + } + + if (of_pci_dma_range_parser_init(&parser, np)) { + pr_err("missing dma-ranges property\n"); + return; + } + + /* + * Get the dma-ranges from the device tree + */ + for_each_of_pci_range(&parser, &range) { + unittest(range.size == 0x10000000, + "for_each_of_pci_range wrong size on node %pOF size=%llx\n", + np, range.size); + unittest(range.cpu_addr == 0x00000000, + "for_each_of_pci_range wrong CPU addr (%llx) on node %pOF", + range.cpu_addr, np); + unittest(range.pci_addr == 0xc0000000, + "for_each_of_pci_range wrong DMA addr (%llx) on node %pOF", + range.pci_addr, np); + } + + of_node_put(np); +} + static void __init of_unittest_bus_ranges(void) { struct device_node *np; @@ -4272,6 +4310,7 @@ static int __init of_unittest(void) of_unittest_dma_get_max_cpu_address(); of_unittest_parse_dma_ranges(); of_unittest_pci_dma_ranges(); + of_unittest_pci_empty_dma_ranges(); of_unittest_bus_ranges(); of_unittest_bus_3cell_ranges(); of_unittest_reg(); |