test: Add test for mapping IOMMUs for PCI devices
Test that we correctly probe an IOMMU that is mapped by an
"iommu-map" device tree property of a PCIe controller node.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/iommu.c b/test/dm/iommu.c
index 6f932ef..62d38f1 100644
--- a/test/dm/iommu.c
+++ b/test/dm/iommu.c
@@ -68,3 +68,33 @@
return 0;
}
DM_TEST(dm_test_iommu_noiommu, UT_TESTF_SCAN_FDT);
+
+static int dm_test_iommu_pci(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+
+ ut_assertok(uclass_find_device(UCLASS_IOMMU, 0, &dev));
+ ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
+
+ /* Probing P2SB probes the IOMMU through the "iommu-map" property */
+ ut_assertok(uclass_probe_all(UCLASS_P2SB));
+ ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
+
+ return 0;
+}
+DM_TEST(dm_test_iommu_pci, UT_TESTF_SCAN_FDT);
+
+static int dm_test_iommu_pci_noiommu(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+
+ ut_assertok(uclass_find_device(UCLASS_IOMMU, 0, &dev));
+ ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
+
+ /* Probing PMC should not probe the IOMMU */
+ ut_assertok(uclass_probe_all(UCLASS_ACPI_PMC));
+ ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
+
+ return 0;
+}
+DM_TEST(dm_test_iommu_pci_noiommu, UT_TESTF_SCAN_FDT);