diff options
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/cxl/test/cxl.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c index 4dad0fa7ac4c..a072b2d3e726 100644 --- a/tools/testing/cxl/test/cxl.c +++ b/tools/testing/cxl/test/cxl.c @@ -429,6 +429,50 @@ static int map_targets(struct device *dev, void *data) return 0; } +static int mock_decoder_commit(struct cxl_decoder *cxld) +{ + struct cxl_port *port = to_cxl_port(cxld->dev.parent); + int id = cxld->id; + + if (cxld->flags & CXL_DECODER_F_ENABLE) + return 0; + + dev_dbg(&port->dev, "%s commit\n", dev_name(&cxld->dev)); + if (port->commit_end + 1 != id) { + dev_dbg(&port->dev, + "%s: out of order commit, expected decoder%d.%d\n", + dev_name(&cxld->dev), port->id, port->commit_end + 1); + return -EBUSY; + } + + port->commit_end++; + cxld->flags |= CXL_DECODER_F_ENABLE; + + return 0; +} + +static int mock_decoder_reset(struct cxl_decoder *cxld) +{ + struct cxl_port *port = to_cxl_port(cxld->dev.parent); + int id = cxld->id; + + if ((cxld->flags & CXL_DECODER_F_ENABLE) == 0) + return 0; + + dev_dbg(&port->dev, "%s reset\n", dev_name(&cxld->dev)); + if (port->commit_end != id) { + dev_dbg(&port->dev, + "%s: out of order reset, expected decoder%d.%d\n", + dev_name(&cxld->dev), port->id, port->commit_end); + return -EBUSY; + } + + port->commit_end--; + cxld->flags &= ~CXL_DECODER_F_ENABLE; + + return 0; +} + static int mock_cxl_enumerate_decoders(struct cxl_hdm *cxlhdm) { struct cxl_port *port = cxlhdm->port; @@ -482,6 +526,8 @@ static int mock_cxl_enumerate_decoders(struct cxl_hdm *cxlhdm) cxld->interleave_ways = min_not_zero(target_count, 1); cxld->interleave_granularity = SZ_4K; cxld->target_type = CXL_DECODER_EXPANDER; + cxld->commit = mock_decoder_commit; + cxld->reset = mock_decoder_reset; if (target_count) { rc = device_for_each_child(port->uport, &ctx, |