Messages in this thread Patch in this message | | | From | ira.weiny@intel ... | Subject | [RFC PATCH 3/9] cxl/mem: Clear events on driver load | Date | Fri, 12 Aug 2022 22:32:37 -0700 |
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From: Ira Weiny <ira.weiny@intel.com>
The information contained in the events prior to the driver loading can be queried at any time through other mailbox commands.
Ensure a clean slate of events by reading and clearing the events. The events are sent to the trace buffer but it is not anticipated to have anyone listening to it at driver load time.
Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- drivers/cxl/pci.c | 2 ++ tools/testing/cxl/test/mem.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c index faeb5d9d7a7a..5f1b492bd388 100644 --- a/drivers/cxl/pci.c +++ b/drivers/cxl/pci.c @@ -498,6 +498,8 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (IS_ERR(cxlmd)) return PTR_ERR(cxlmd); + cxl_mem_get_event_records(cxlds); + if (resource_size(&cxlds->pmem_res) && IS_ENABLED(CONFIG_CXL_PMEM)) rc = devm_cxl_add_nvdimm(&pdev->dev, cxlmd); diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index aa2df3a15051..e2f5445d24ff 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -285,6 +285,8 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) if (IS_ERR(cxlmd)) return PTR_ERR(cxlmd); + cxl_mem_get_event_records(cxlds); + if (resource_size(&cxlds->pmem_res) && IS_ENABLED(CONFIG_CXL_PMEM)) rc = devm_cxl_add_nvdimm(dev, cxlmd); -- 2.35.3
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