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>

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;

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);

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;
 

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

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;