diff options
Diffstat (limited to 'tools/testing/cxl/test/mem.c')
| -rw-r--r-- | tools/testing/cxl/test/mem.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index a7da279aa3ef..7b756000a1a6 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -1713,6 +1713,7 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) struct cxl_mockmem_data *mdata; struct cxl_mailbox *cxl_mbox; struct cxl_dpa_info range_info = { 0 }; + u64 serial; int rc; /* Increase async probe race window */ @@ -1739,7 +1740,19 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) if (rc) return rc; - mds = cxl_memdev_state_create(dev, pdev->id + 1, 0); + /* + * Mock serials have historically been derived from pdev->id and stayed + * single-digit, so they never exercised either decimal-vs-hex key + * lookup or unsigned formatting. Give one mock device a full-width + * serial with bit 63 set, matching real hardware such as Montage CXL + * devices. pdev->id 7 is unused by the auto-region topology. + */ + if (pdev->id == 7) + serial = 0x8a34567890abcdef; + else + serial = pdev->id + 1; + + mds = cxl_memdev_state_create(dev, serial, 0); if (IS_ERR(mds)) return PTR_ERR(mds); |