[PATCH v3 4/8] of: unittest: Add test for of_dma_get_max_cpu_address()
From: Nicolas Saenz Julienne <hidden>
Date: 2020-10-14 19:12:34
Also in:
linux-devicetree, linux-iommu, lkml
Subsystem:
open firmware and flattened device tree, the rest · Maintainers:
Rob Herring, Saravana Kannan, Linus Torvalds
Introduce a test for of_dma_get_max_cup_address(), it uses the same DT data as the rest of dma-ranges unit tests. Signed-off-by: Nicolas Saenz Julienne <redacted> --- drivers/of/unittest.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 06cc988faf78..2cbf2a585c9f 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c@@ -869,6 +869,25 @@ static void __init of_unittest_changeset(void) #endif } +static void __init of_unittest_dma_get_max_cpu_address(void) +{ +#ifdef CONFIG_HAS_DMA + struct device_node *np; + phys_addr_t cpu_addr; + + np = of_find_node_by_path("/testcase-data/address-tests"); + if (!np) { + pr_err("missing testcase data\n"); + return; + } + + cpu_addr = of_dma_get_max_cpu_address(np); + unittest(cpu_addr == 0x50000000ULL, + "of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %llx)\n", + &cpu_addr, 0x50000000ULL); +#endif +} + static void __init of_unittest_dma_ranges_one(const char *path, u64 expect_dma_addr, u64 expect_paddr) {
@@ -3266,6 +3285,7 @@ static int __init of_unittest(void) of_unittest_changeset(); of_unittest_parse_interrupts(); of_unittest_parse_interrupts_extended(); + of_unittest_dma_get_max_cpu_address(); of_unittest_parse_dma_ranges(); of_unittest_pci_dma_ranges(); of_unittest_match_node();
--
2.28.0
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