mei: enable marking internal commands

Set hbm header bit 30 for internal commands
This mark commands that are generated by
the device driver

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

5 files changed, 10 insertions, 3 deletions

diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index d22c6864508b..29fcd57b8315 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -316,6 +316,7 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb)
                 mei_hdr.host_addr = dev->iamthif_cl.host_client_id;
                 mei_hdr.me_addr = dev->iamthif_cl.me_client_id;
                 mei_hdr.reserved = 0;
+                mei_hdr.internal = 0;
                 dev->iamthif_msg_buf_index += mei_hdr.length;
                 ret = mei_write_message(dev, &mei_hdr, dev->iamthif_msg_buf);
                 if (ret)
@@ -477,6 +478,7 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
         mei_hdr.host_addr = cl->host_client_id;
         mei_hdr.me_addr = cl->me_client_id;
         mei_hdr.reserved = 0;
+        mei_hdr.internal = 0;
 
         if (*slots >= msg_slots) {
                 mei_hdr.length = len;
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 6184e854ae1e..f84d332ef059 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -727,6 +727,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
         mei_hdr.host_addr = cl->host_client_id;
         mei_hdr.me_addr = cl->me_client_id;
         mei_hdr.reserved = 0;
+        mei_hdr.internal = cb->internal;
 
         if (*slots >= msg_slots) {
                 mei_hdr.length = len;
@@ -826,6 +827,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
         mei_hdr.host_addr = cl->host_client_id;
         mei_hdr.me_addr = cl->me_client_id;
         mei_hdr.reserved = 0;
+        mei_hdr.internal = cb->internal;
 
 
         rets = mei_write_message(dev, &mei_hdr, buf->data);
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index cb2f556b4252..dd44e33ad2b6 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -111,7 +111,8 @@ struct mei_msg_hdr {
         u32 me_addr:8;
         u32 host_addr:8;
         u32 length:9;
-        u32 reserved:6;
+        u32 reserved:5;
+        u32 internal:1;
         u32 msg_complete:1;
 } __packed;
 
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 4a7ee815fab1..d92ca0c93f7f 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -178,6 +178,7 @@ struct mei_cl_cb {
         unsigned long buf_idx;
         unsigned long read_time;
         struct file *file_object;
+        u32 internal:1;
 };
 
 /* MEI client instance carried as file->pirvate_data*/
@@ -637,9 +638,9 @@ static inline void mei_dbgfs_deregister(struct mei_device *dev) {}
 int mei_register(struct mei_device *dev);
 void mei_deregister(struct mei_device *dev);
 
-#define MEI_HDR_FMT "hdr:host=%02d me=%02d len=%d comp=%1d"
+#define MEI_HDR_FMT "hdr:host=%02d me=%02d len=%d internal=%1d comp=%1d"
 #define MEI_HDR_PRM(hdr)                  \
         (hdr)->host_addr, (hdr)->me_addr, \
-        (hdr)->length, (hdr)->msg_complete
+        (hdr)->length, (hdr)->internal, (hdr)->msg_complete
 
 #endif
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index 9e354216c163..f70945ed96f6 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -115,6 +115,7 @@ int mei_wd_send(struct mei_device *dev)
         hdr.me_addr = dev->wd_cl.me_client_id;
         hdr.msg_complete = 1;
         hdr.reserved = 0;
+        hdr.internal = 0;
 
         if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE))
                 hdr.length = MEI_WD_START_MSG_SIZE;