diff options
Diffstat (limited to 'drivers/peci/peci-core.c')
| -rw-r--r-- | drivers/peci/peci-core.c | 51 |
1 files changed, 38 insertions, 13 deletions
diff --git a/drivers/peci/peci-core.c b/drivers/peci/peci-core.c index 90820b75ae37..08bf1a759324 100644 --- a/drivers/peci/peci-core.c +++ b/drivers/peci/peci-core.c @@ -1425,6 +1425,13 @@ struct bus_type peci_bus_type = { }; EXPORT_SYMBOL_GPL(peci_bus_type); +static int peci_check_domain_validity(u8 domain_id) +{ + if (domain_id >= DOMAIN_OFFSET_MAX) + return -EINVAL; + return 0; +} + static int peci_check_addr_validity(u8 addr) { if (addr < PECI_BASE_ADDR && addr > PECI_BASE_ADDR + PECI_OFFSET_MAX) @@ -1438,7 +1445,8 @@ static int peci_check_client_busy(struct device *dev, void *client_new_p) struct peci_client *client = peci_verify_client(dev); struct peci_client *client_new = client_new_p; - if (client && client->addr == client_new->addr) + if (client && client->addr == client_new->addr && + client->domain_id == client_new->domain_id) return -EBUSY; return 0; @@ -1453,12 +1461,13 @@ static int peci_check_client_busy(struct device *dev, void *client_new_p) * * Return: zero on success, else a negative error code. */ -int peci_get_cpu_id(struct peci_adapter *adapter, u8 addr, u32 *cpu_id) +int peci_get_cpu_id(struct peci_adapter *adapter, u8 addr, u8 domain_id, u32 *cpu_id) { struct peci_rd_pkg_cfg_msg msg; int ret; msg.addr = addr; + msg.domain_id = domain_id; msg.index = PECI_MBX_INDEX_CPU_ID; msg.param = PECI_PKG_ID_CPU_ID; msg.rx_len = 4; @@ -1479,6 +1488,7 @@ static struct peci_client *peci_new_device(struct peci_adapter *adapter, struct peci_board_info const *info) { struct peci_client *client; + char name[16]; int ret; /* Increase reference count for the adapter assigned */ @@ -1491,6 +1501,7 @@ static struct peci_client *peci_new_device(struct peci_adapter *adapter, client->adapter = adapter; client->addr = info->addr; + client->domain_id = info->domain_id; strlcpy(client->name, info->type, sizeof(client->name)); /* Check online status of client */ @@ -1503,11 +1514,16 @@ static struct peci_client *peci_new_device(struct peci_adapter *adapter, if (ret) goto err_free_client; + if (client->domain_id) + snprintf(name, 16, "%d-%02x-%02x", adapter->nr, client->addr, client->domain_id); + else + snprintf(name, 16, "%d-%02x", adapter->nr, client->addr); + client->dev.parent = &client->adapter->dev; client->dev.bus = &peci_bus_type; client->dev.type = &peci_client_type; client->dev.of_node = of_node_get(info->of_node); - dev_set_name(&client->dev, "%d-%02x", adapter->nr, client->addr); + dev_set_name(&client->dev, name); ret = device_register(&client->dev); if (ret) @@ -1522,8 +1538,8 @@ err_put_of_node: of_node_put(info->of_node); err_free_client: dev_err(&adapter->dev, - "Failed to register peci client %s at 0x%02x (%d)\n", - client->name, client->addr, ret); + "Failed to register peci client %s, addr: %#02x, domain id: %#02x, ret: %d\n", + client->name, client->addr, client->domain_id, ret); kfree(client); err_put_adapter: peci_put_adapter(adapter); @@ -1570,8 +1586,8 @@ static ssize_t peci_sysfs_new_device(struct device *dev, struct peci_adapter *adapter = to_peci_adapter(dev); struct peci_board_info info = {}; struct peci_client *client; + u8 addr, domain_id; char *blank, end; - u8 addr; int ret; /* Parse device type */ @@ -1587,9 +1603,9 @@ static ssize_t peci_sysfs_new_device(struct device *dev, memcpy(info.type, buf, blank - buf); /* Parse remaining parameters, reject extra parameters */ - ret = sscanf(++blank, "%hhi%c", &addr, &end); + ret = sscanf(++blank, "%hhi %hhi%c", &addr, &domain_id, &end); if (ret < 1) { - dev_err(dev, "%s: Can't parse client address\n", "new_device"); + dev_err(dev, "%s: Can't parse parameters\n", "new_device"); return -EINVAL; } if (ret > 1 && end != '\n') { @@ -1601,7 +1617,12 @@ static ssize_t peci_sysfs_new_device(struct device *dev, if (ret) return ret; + ret = peci_check_domain_validity(domain_id); + if (ret) + domain_id = 0; + info.addr = addr; + info.domain_id = domain_id; client = peci_new_device(adapter, &info); if (!client) return -EINVAL; @@ -1624,8 +1645,8 @@ static ssize_t peci_sysfs_delete_device(struct device *dev, struct peci_adapter *adapter = to_peci_adapter(dev); struct peci_client *client, *next; struct peci_board_info info = {}; + u8 addr, domain_id; char *blank, end; - u8 addr; int ret; /* Parse device type */ @@ -1641,10 +1662,9 @@ static ssize_t peci_sysfs_delete_device(struct device *dev, memcpy(info.type, buf, blank - buf); /* Parse remaining parameters, reject extra parameters */ - ret = sscanf(++blank, "%hhi%c", &addr, &end); + ret = sscanf(++blank, "%hhi %hhi%c", &addr, &domain_id, &end); if (ret < 1) { - dev_err(dev, "%s: Can't parse client address\n", - "delete_device"); + dev_err(dev, "%s: Can't parse parameters\n", "delete_device"); return -EINVAL; } if (ret > 1 && end != '\n') { @@ -1656,14 +1676,19 @@ static ssize_t peci_sysfs_delete_device(struct device *dev, if (ret) return ret; + ret = peci_check_domain_validity(domain_id); + if (ret) + domain_id = 0; + info.addr = addr; + info.domain_id = domain_id; /* Make sure the device was added through sysfs */ ret = -ENOENT; mutex_lock(&adapter->userspace_clients_lock); list_for_each_entry_safe(client, next, &adapter->userspace_clients, detected) { - if (client->addr == info.addr && + if (client->addr == info.addr && client->domain_id == info.domain_id && !strncmp(client->name, info.type, PECI_NAME_SIZE)) { dev_dbg(dev, "%s: Deleting device %s at 0x%02hx\n", "delete_device", client->name, client->addr); 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