| Message ID | 164298433209.3018233.18101085948127163720.stgit@dwillia2-desk3.amr.corp.intel.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
| Series | CXL.mem Topology Discovery and Hotplug Support | expand |
On Sun, 23 Jan 2022 16:32:12 -0800 Dan Williams <dan.j.williams@intel.com> wrote: > Emulate what ACPI does to link a host bridge platform firmware device to > device node on the PCI bus. In this case it's just self referencing > link, but it otherwise lets the tooling test out its lookup code. > > Signed-off-by: Dan Williams <dan.j.williams@intel.com> FWIW the last 5 patches all look good to me, but I'm not familiar enough with the mocking code to be able to do a detailed review, so I'll leave that for others. Thanks, Jonathan > --- > tools/testing/cxl/test/cxl.c | 21 +++++++++++++++++++-- > 1 file changed, 19 insertions(+), 2 deletions(-) > > diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c > index 1b36e67dcd7e..431f2bddf6c8 100644 > --- a/tools/testing/cxl/test/cxl.c > +++ b/tools/testing/cxl/test/cxl.c > @@ -641,7 +641,12 @@ static __init int cxl_test_init(void) > platform_device_put(pdev); > goto err_bridge; > } > + > cxl_host_bridge[i] = pdev; > + rc = sysfs_create_link(&pdev->dev.kobj, &pdev->dev.kobj, > + "physical_node"); > + if (rc) > + goto err_bridge; > } > > for (i = 0; i < ARRAY_SIZE(cxl_root_port); i++) { > @@ -745,8 +750,14 @@ static __init int cxl_test_init(void) > for (i = ARRAY_SIZE(cxl_root_port) - 1; i >= 0; i--) > platform_device_unregister(cxl_root_port[i]); > err_bridge: > - for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) > + for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) { > + struct platform_device *pdev = cxl_host_bridge[i]; > + > + if (!pdev) > + continue; > + sysfs_remove_link(&pdev->dev.kobj, "physical_node"); > platform_device_unregister(cxl_host_bridge[i]); > + } > err_populate: > depopulate_all_mock_resources(); > err_gen_pool_add: > @@ -769,8 +780,14 @@ static __exit void cxl_test_exit(void) > platform_device_unregister(cxl_switch_uport[i]); > for (i = ARRAY_SIZE(cxl_root_port) - 1; i >= 0; i--) > platform_device_unregister(cxl_root_port[i]); > - for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) > + for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) { > + struct platform_device *pdev = cxl_host_bridge[i]; > + > + if (!pdev) > + continue; > + sysfs_remove_link(&pdev->dev.kobj, "physical_node"); > platform_device_unregister(cxl_host_bridge[i]); > + } > depopulate_all_mock_resources(); > gen_pool_destroy(cxl_mock_pool); > unregister_cxl_mock_ops(&cxl_mock_ops); >
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c index 1b36e67dcd7e..431f2bddf6c8 100644 --- a/tools/testing/cxl/test/cxl.c +++ b/tools/testing/cxl/test/cxl.c @@ -641,7 +641,12 @@ static __init int cxl_test_init(void) platform_device_put(pdev); goto err_bridge; } + cxl_host_bridge[i] = pdev; + rc = sysfs_create_link(&pdev->dev.kobj, &pdev->dev.kobj, + "physical_node"); + if (rc) + goto err_bridge; } for (i = 0; i < ARRAY_SIZE(cxl_root_port); i++) { @@ -745,8 +750,14 @@ static __init int cxl_test_init(void) for (i = ARRAY_SIZE(cxl_root_port) - 1; i >= 0; i--) platform_device_unregister(cxl_root_port[i]); err_bridge: - for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) + for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) { + struct platform_device *pdev = cxl_host_bridge[i]; + + if (!pdev) + continue; + sysfs_remove_link(&pdev->dev.kobj, "physical_node"); platform_device_unregister(cxl_host_bridge[i]); + } err_populate: depopulate_all_mock_resources(); err_gen_pool_add: @@ -769,8 +780,14 @@ static __exit void cxl_test_exit(void) platform_device_unregister(cxl_switch_uport[i]); for (i = ARRAY_SIZE(cxl_root_port) - 1; i >= 0; i--) platform_device_unregister(cxl_root_port[i]); - for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) + for (i = ARRAY_SIZE(cxl_host_bridge) - 1; i >= 0; i--) { + struct platform_device *pdev = cxl_host_bridge[i]; + + if (!pdev) + continue; + sysfs_remove_link(&pdev->dev.kobj, "physical_node"); platform_device_unregister(cxl_host_bridge[i]); + } depopulate_all_mock_resources(); gen_pool_destroy(cxl_mock_pool); unregister_cxl_mock_ops(&cxl_mock_ops);
Emulate what ACPI does to link a host bridge platform firmware device to device node on the PCI bus. In this case it's just self referencing link, but it otherwise lets the tooling test out its lookup code. Signed-off-by: Dan Williams <dan.j.williams@intel.com> --- tools/testing/cxl/test/cxl.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-)