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authorKoichiro Den <den@valinux.co.jp>2026-01-24 23:50:12 +0900
committerBjorn Helgaas <bhelgaas@google.com>2026-01-29 17:42:37 -0600
commitc17b9046faf7d1f3b8bb992e4d53da873dc478fc (patch)
tree48ee6f3cb15a71410ee2d1d60c85d152617b66a9
parent8cf82bb558517503a81f8e3c49914c0836360aa6 (diff)
selftests: pci_endpoint: Add BAR subrange mapping test case
Add BAR_SUBRANGE_TEST to the pci_endpoint kselftest suite. The test uses the PCITEST_BAR_SUBRANGE ioctl and will skip when the chosen BAR is disabled (-ENODATA), when the endpoint/controller does not support subrange mapping (-EOPNOTSUPP), or when the BAR is reserved for the test register space (-EBUSY). Signed-off-by: Koichiro Den <den@valinux.co.jp> Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/20260124145012.2794108-9-den@valinux.co.jp
-rw-r--r--tools/testing/selftests/pci_endpoint/pci_endpoint_test.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
index 23aac6f97061..eecb776c33af 100644
--- a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
+++ b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
@@ -70,6 +70,23 @@ TEST_F(pci_ep_bar, BAR_TEST)
EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno);
}
+TEST_F(pci_ep_bar, BAR_SUBRANGE_TEST)
+{
+ int ret;
+
+ pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_AUTO);
+ ASSERT_EQ(0, ret) TH_LOG("Can't set AUTO IRQ type");
+
+ pci_ep_ioctl(PCITEST_BAR_SUBRANGE, variant->barno);
+ if (ret == -ENODATA)
+ SKIP(return, "BAR is disabled");
+ if (ret == -EBUSY)
+ SKIP(return, "BAR is test register space");
+ if (ret == -EOPNOTSUPP)
+ SKIP(return, "Subrange map is not supported");
+ EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno);
+}
+
FIXTURE(pci_ep_basic)
{
int fd;