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of: unittest: Add test for of_dma_get_max_cpu_address()

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commit 07d13a1d6120d453c3c1f020578693d072deded5 upstream

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 <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201119175400.9995-5-nsaenzjulienne@suse.de
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicolas Saenz Julienne 2021-03-03 15:33:16 +08:00 committed by Greg Kroah-Hartman
parent 18bf6e998d
commit a9861e7fa4
1 changed files with 18 additions and 0 deletions
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18
drivers/of/unittest.c
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@ -869,6 +869,23 @@ static void __init of_unittest_changeset(void)
#endif
}
static void __init of_unittest_dma_get_max_cpu_address(void)
{
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 == 0x4fffffff,
"of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %x)\n",
&cpu_addr, 0x4fffffff);
}
static void __init of_unittest_dma_ranges_one(const char *path,
u64 expect_dma_addr, u64 expect_paddr)
{
@ -3266,6 +3283,7 @@ 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();