diff options
| -rw-r--r-- | drivers/misc/mei/debugfs.c | 2 | ||||
| -rw-r--r-- | drivers/misc/mei/hbm.c | 8 | ||||
| -rw-r--r-- | drivers/misc/mei/hw.h | 25 | ||||
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 2 |
4 files changed, 32 insertions, 5 deletions
diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c index 8ad406315741..c6c051b52f55 100644 --- a/drivers/misc/mei/debugfs.c +++ b/drivers/misc/mei/debugfs.c @@ -172,6 +172,8 @@ static ssize_t mei_dbgfs_read_devstate(struct file *fp, char __user *ubuf, dev->hbm_f_pg_supported); pos += scnprintf(buf + pos, bufsz - pos, "\tDC: %01d\n", dev->hbm_f_dc_supported); + pos += scnprintf(buf + pos, bufsz - pos, "\tIE: %01d\n", + dev->hbm_f_ie_supported); pos += scnprintf(buf + pos, bufsz - pos, "\tDOT: %01d\n", dev->hbm_f_dot_supported); pos += scnprintf(buf + pos, bufsz - pos, "\tEV: %01d\n", diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 0c9310ad6136..d2798d5b0a9d 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -301,7 +301,10 @@ static int mei_hbm_enum_clients_req(struct mei_device *dev) enum_req = (struct hbm_host_enum_request *)dev->wr_msg.data; memset(enum_req, 0, len); enum_req->hbm_cmd = HOST_ENUM_REQ_CMD; - enum_req->allow_add = dev->hbm_f_dc_supported; + enum_req->flags |= dev->hbm_f_dc_supported ? + MEI_HBM_ENUM_F_ALLOW_ADD : 0; + enum_req->flags |= dev->hbm_f_ie_supported ? + MEI_HBM_ENUM_F_IMMEDIATE_ENUM : 0; ret = mei_write_message(dev, mei_hdr, dev->wr_msg.data); if (ret) { @@ -978,6 +981,9 @@ static void mei_hbm_config_features(struct mei_device *dev) if (dev->version.major_version >= HBM_MAJOR_VERSION_DC) dev->hbm_f_dc_supported = 1; + if (dev->version.major_version >= HBM_MAJOR_VERSION_IE) + dev->hbm_f_ie_supported = 1; + /* disconnect on connect timeout instead of link reset */ if (dev->version.major_version >= HBM_MAJOR_VERSION_DOT) dev->hbm_f_dot_supported = 1; diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index 459ad596df66..9daf3f9aed25 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -53,6 +53,12 @@ #define HBM_MAJOR_VERSION_DC 2 /* + * MEI version with immediate reply to enum request support + */ +#define HBM_MINOR_VERSION_IE 0 +#define HBM_MAJOR_VERSION_IE 2 + +/* * MEI version with disconnect on connection timeout support */ #define HBM_MINOR_VERSION_DOT 0 @@ -246,15 +252,26 @@ struct hbm_me_stop_request { } __packed; /** - * struct hbm_host_enum_request - enumeration request from host to fw + * enum hbm_host_enum_flags - enumeration request flags (HBM version >= 2.0) * - * @hbm_cmd: bus message command header - * @allow_add: allow dynamic clients add HBM version >= 2.0 + * @MEI_HBM_ENUM_F_ALLOW_ADD: allow dynamic clients add + * @MEI_HBM_ENUM_F_IMMEDIATE_ENUM: allow FW to send answer immediately + */ +enum hbm_host_enum_flags { + MEI_HBM_ENUM_F_ALLOW_ADD = BIT(0), + MEI_HBM_ENUM_F_IMMEDIATE_ENUM = BIT(1), +}; + +/** + * struct hbm_host_enum_request - enumeration request from host to fw + * + * @hbm_cmd : bus message command header + * @flags : request flags * @reserved: reserved */ struct hbm_host_enum_request { u8 hbm_cmd; - u8 allow_add; + u8 flags; u8 reserved[2]; } __packed; diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index c31adb8a0cff..2b9160e506d7 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -390,6 +390,7 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @hbm_f_dot_supported : hbm feature disconnect on timeout * @hbm_f_ev_supported : hbm feature event notification * @hbm_f_fa_supported : hbm feature fixed address client + * @hbm_f_ie_supported : hbm feature immediate reply to enum request * * @me_clients_rwsem: rw lock over me_clients list * @me_clients : list of FW clients @@ -480,6 +481,7 @@ struct mei_device { unsigned int hbm_f_dot_supported:1; unsigned int hbm_f_ev_supported:1; unsigned int hbm_f_fa_supported:1; + unsigned int hbm_f_ie_supported:1; struct rw_semaphore me_clients_rwsem; struct list_head me_clients; |