diff options
Diffstat (limited to 'drivers/cxl/core/port.c')
| -rw-r--r-- | drivers/cxl/core/port.c | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index 78a5c2c25982..0fd6646c1a2e 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -194,25 +194,35 @@ static ssize_t mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct cxl_endpoint_decoder *cxled = to_cxl_endpoint_decoder(dev); + struct cxl_memdev *cxlmd = cxled_to_memdev(cxled); + struct cxl_dev_state *cxlds = cxlmd->cxlds; + /* without @cxl_dpa_rwsem, make sure @part is not reloaded */ + int part = READ_ONCE(cxled->part); + const char *desc; + + if (part < 0) + desc = "none"; + else + desc = cxlds->part[part].res.name; - return sysfs_emit(buf, "%s\n", cxl_decoder_mode_name(cxled->mode)); + return sysfs_emit(buf, "%s\n", desc); } static ssize_t mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct cxl_endpoint_decoder *cxled = to_cxl_endpoint_decoder(dev); - enum cxl_decoder_mode mode; + enum cxl_partition_mode mode; ssize_t rc; if (sysfs_streq(buf, "pmem")) - mode = CXL_DECODER_PMEM; + mode = CXL_PARTMODE_PMEM; else if (sysfs_streq(buf, "ram")) - mode = CXL_DECODER_RAM; + mode = CXL_PARTMODE_RAM; else return -EINVAL; - rc = cxl_dpa_set_mode(cxled, mode); + rc = cxl_dpa_set_part(cxled, mode); if (rc) return rc; @@ -549,13 +559,9 @@ static ssize_t decoders_committed_show(struct device *dev, struct device_attribute *attr, char *buf) { struct cxl_port *port = to_cxl_port(dev); - int rc; - - down_read(&cxl_region_rwsem); - rc = sysfs_emit(buf, "%d\n", cxl_num_decoders_committed(port)); - up_read(&cxl_region_rwsem); - return rc; + guard(rwsem_read)(&cxl_region_rwsem); + return sysfs_emit(buf, "%d\n", cxl_num_decoders_committed(port)); } static DEVICE_ATTR_RO(decoders_committed); @@ -1672,6 +1678,8 @@ retry: if (rc && rc != -EBUSY) return rc; + cxl_gpf_port_setup(dport_dev, port); + /* Any more ports to add between this one and the root? */ if (!dev_is_cxl_root_child(&port->dev)) continue; @@ -1899,6 +1907,7 @@ struct cxl_endpoint_decoder *cxl_endpoint_decoder_alloc(struct cxl_port *port) return ERR_PTR(-ENOMEM); cxled->pos = -1; + cxled->part = -1; cxld = &cxled->cxld; rc = cxl_decoder_init(port, cxld); if (rc) { @@ -2339,8 +2348,14 @@ static __init int cxl_core_init(void) if (rc) goto err_region; + rc = cxl_ras_init(); + if (rc) + goto err_ras; + return 0; +err_ras: + cxl_region_exit(); err_region: bus_unregister(&cxl_bus_type); err_bus: @@ -2352,6 +2367,7 @@ err_wq: static void cxl_core_exit(void) { + cxl_ras_exit(); cxl_region_exit(); bus_unregister(&cxl_bus_type); destroy_workqueue(cxl_bus_wq); |