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path: root/drivers/misc/mei/interrupt.c
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Diffstat (limited to 'drivers/misc/mei/interrupt.c')
-rw-r--r--drivers/misc/mei/interrupt.c134
1 files changed, 58 insertions, 76 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 320ebd2f06ce..54d6f1a1dbc9 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -87,9 +87,8 @@ static void _mei_cmpl_iamthif(struct mei_device *dev, struct mei_cl_cb *cb_pos)
memcpy(cb_pos->response_buffer.data,
dev->iamthif_msg_buf,
dev->iamthif_msg_buf_index);
- list_add_tail(&cb_pos->cb_list,
- &dev->amthi_read_complete_list.mei_cb.cb_list);
- dev_dbg(&dev->pdev->dev, "amthi read completed.\n");
+ list_add_tail(&cb_pos->list, &dev->amthi_read_complete_list.list);
+ dev_dbg(&dev->pdev->dev, "amthi read completed\n");
dev->iamthif_timer = jiffies;
dev_dbg(&dev->pdev->dev, "dev->iamthif_timer = %ld\n",
dev->iamthif_timer);
@@ -112,7 +111,7 @@ static void _mei_cmpl_iamthif(struct mei_device *dev, struct mei_cl_cb *cb_pos)
*
* returns 0 on success, <0 on failure.
*/
-static int mei_irq_thread_read_amthi_message(struct mei_io_list *complete_list,
+static int mei_irq_thread_read_amthi_message(struct mei_cl_cb *complete_list,
struct mei_device *dev,
struct mei_msg_hdr *mei_hdr)
{
@@ -155,8 +154,7 @@ static int mei_irq_thread_read_amthi_message(struct mei_io_list *complete_list,
/* found the iamthif cb */
dev_dbg(&dev->pdev->dev, "complete the amthi read cb.\n ");
dev_dbg(&dev->pdev->dev, "add the amthi read cb to complete.\n ");
- list_add_tail(&cb->cb_list,
- &complete_list->mei_cb.cb_list);
+ list_add_tail(&cb->list, &complete_list->list);
}
return 0;
}
@@ -188,7 +186,7 @@ static int _mei_irq_thread_state_ok(struct mei_cl *cl,
*
* returns 0 on success, <0 on failure.
*/
-static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
+static int mei_irq_thread_read_client_message(struct mei_cl_cb *complete_list,
struct mei_device *dev,
struct mei_msg_hdr *mei_hdr)
{
@@ -197,11 +195,10 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
unsigned char *buffer = NULL;
dev_dbg(&dev->pdev->dev, "start client msg\n");
- if (list_empty(&dev->read_list.mei_cb.cb_list))
+ if (list_empty(&dev->read_list.list))
goto quit;
- list_for_each_entry_safe(cb_pos, cb_next,
- &dev->read_list.mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(cb_pos, cb_next, &dev->read_list.list, list) {
cl = (struct mei_cl *)cb_pos->file_private;
if (cl && _mei_irq_thread_state_ok(cl, mei_hdr)) {
cl->reading_state = MEI_READING;
@@ -210,7 +207,7 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
if (cb_pos->response_buffer.size <
mei_hdr->length + cb_pos->buf_idx) {
dev_dbg(&dev->pdev->dev, "message overflow.\n");
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
return -ENOMEM;
}
if (buffer)
@@ -219,15 +216,15 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
cb_pos->buf_idx += mei_hdr->length;
if (mei_hdr->msg_complete) {
cl->status = 0;
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
dev_dbg(&dev->pdev->dev,
"completed read H cl = %d, ME cl = %d, length = %lu\n",
cl->host_client_id,
cl->me_client_id,
cb_pos->buf_idx);
- list_add_tail(&cb_pos->cb_list,
- &complete_list->mei_cb.cb_list);
+ list_add_tail(&cb_pos->list,
+ &complete_list->list);
}
break;
@@ -291,7 +288,7 @@ static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots)
static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots,
struct mei_cl_cb *cb_pos,
struct mei_cl *cl,
- struct mei_io_list *cmpl_list)
+ struct mei_cl_cb *cmpl_list)
{
if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_disconnect_request)))
@@ -302,15 +299,13 @@ static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots,
if (mei_disconnect(dev, cl)) {
cl->status = 0;
cb_pos->buf_idx = 0;
- list_move_tail(&cb_pos->cb_list,
- &cmpl_list->mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &cmpl_list->list);
return -EMSGSIZE;
} else {
cl->state = MEI_FILE_DISCONNECTING;
cl->status = 0;
cb_pos->buf_idx = 0;
- list_move_tail(&cb_pos->cb_list,
- &dev->ctrl_rd_list.mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &dev->ctrl_rd_list.list);
cl->timer_count = MEI_CONNECT_TIMEOUT;
}
@@ -357,7 +352,7 @@ static void mei_client_connect_response(struct mei_device *dev,
{
struct mei_cl *cl;
- struct mei_cl_cb *cb_pos = NULL, *cb_next = NULL;
+ struct mei_cl_cb *pos = NULL, *next = NULL;
dev_dbg(&dev->pdev->dev,
"connect_response:\n"
@@ -383,17 +378,16 @@ static void mei_client_connect_response(struct mei_device *dev,
dev->iamthif_state = MEI_IAMTHIF_IDLE;
return;
}
- list_for_each_entry_safe(cb_pos, cb_next,
- &dev->ctrl_rd_list.mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(pos, next, &dev->ctrl_rd_list.list, list) {
- cl = (struct mei_cl *)cb_pos->file_private;
+ cl = (struct mei_cl *)pos->file_private;
if (!cl) {
- list_del(&cb_pos->cb_list);
+ list_del(&pos->list);
return;
}
- if (MEI_IOCTL == cb_pos->major_file_operations) {
+ if (MEI_IOCTL == pos->major_file_operations) {
if (is_treat_specially_client(cl, rs)) {
- list_del(&cb_pos->cb_list);
+ list_del(&pos->list);
cl->status = 0;
cl->timer_count = 0;
break;
@@ -412,7 +406,7 @@ static void mei_client_disconnect_response(struct mei_device *dev,
struct hbm_client_connect_response *rs)
{
struct mei_cl *cl;
- struct mei_cl_cb *cb_pos = NULL, *cb_next = NULL;
+ struct mei_cl_cb *pos = NULL, *next = NULL;
dev_dbg(&dev->pdev->dev,
"disconnect_response:\n"
@@ -423,12 +417,11 @@ static void mei_client_disconnect_response(struct mei_device *dev,
rs->host_addr,
rs->status);
- list_for_each_entry_safe(cb_pos, cb_next,
- &dev->ctrl_rd_list.mei_cb.cb_list, cb_list) {
- cl = (struct mei_cl *)cb_pos->file_private;
+ list_for_each_entry_safe(pos, next, &dev->ctrl_rd_list.list, list) {
+ cl = (struct mei_cl *)pos->file_private;
if (!cl) {
- list_del(&cb_pos->cb_list);
+ list_del(&pos->list);
return;
}
@@ -436,7 +429,7 @@ static void mei_client_disconnect_response(struct mei_device *dev,
if (cl->host_client_id == rs->host_addr &&
cl->me_client_id == rs->me_addr) {
- list_del(&cb_pos->cb_list);
+ list_del(&pos->list);
if (!rs->status)
cl->state = MEI_FILE_DISCONNECTED;
@@ -822,12 +815,12 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots,
struct mei_cl_cb *cb_pos,
struct mei_cl *cl,
- struct mei_io_list *cmpl_list)
+ struct mei_cl_cb *cmpl_list)
{
if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_flow_control))) {
/* return the cancel routine */
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
return -EBADMSG;
}
@@ -836,10 +829,10 @@ static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots,
if (mei_send_flow_control(dev, cl)) {
cl->status = -ENODEV;
cb_pos->buf_idx = 0;
- list_move_tail(&cb_pos->cb_list, &cmpl_list->mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &cmpl_list->list);
return -ENODEV;
}
- list_move_tail(&cb_pos->cb_list, &dev->read_list.mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &dev->read_list.list);
return 0;
}
@@ -859,12 +852,12 @@ static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots,
static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
struct mei_cl_cb *cb_pos,
struct mei_cl *cl,
- struct mei_io_list *cmpl_list)
+ struct mei_cl_cb *cmpl_list)
{
if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_connect_request))) {
/* return the cancel routine */
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
return -EBADMSG;
}
@@ -873,11 +866,10 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
if (mei_connect(dev, cl)) {
cl->status = -ENODEV;
cb_pos->buf_idx = 0;
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
return -ENODEV;
} else {
- list_move_tail(&cb_pos->cb_list,
- &dev->ctrl_rd_list.mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &dev->ctrl_rd_list.list);
cl->timer_count = MEI_CONNECT_TIMEOUT;
}
return 0;
@@ -897,7 +889,7 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots,
struct mei_cl_cb *cb_pos,
struct mei_cl *cl,
- struct mei_io_list *cmpl_list)
+ struct mei_cl_cb *cmpl_list)
{
struct mei_msg_hdr *mei_hdr;
@@ -924,16 +916,14 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots,
cb_pos->buf_idx),
mei_hdr->length)) {
cl->status = -ENODEV;
- list_move_tail(&cb_pos->cb_list,
- &cmpl_list->mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &cmpl_list->list);
return -ENODEV;
} else {
if (mei_flow_ctrl_reduce(dev, cl))
return -ENODEV;
cl->status = 0;
cb_pos->buf_idx += mei_hdr->length;
- list_move_tail(&cb_pos->cb_list,
- &dev->write_waiting_list.mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &dev->write_waiting_list.list);
}
} else if (*slots == dev->hbuf_depth) {
/* buffer is still empty */
@@ -951,8 +941,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots,
cb_pos->buf_idx),
mei_hdr->length)) {
cl->status = -ENODEV;
- list_move_tail(&cb_pos->cb_list,
- &cmpl_list->mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &cmpl_list->list);
return -ENODEV;
} else {
cb_pos->buf_idx += mei_hdr->length;
@@ -988,7 +977,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots,
static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
struct mei_cl_cb *cb_pos,
struct mei_cl *cl,
- struct mei_io_list *cmpl_list)
+ struct mei_cl_cb *cmpl_list)
{
struct mei_msg_hdr *mei_hdr;
@@ -1011,7 +1000,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
mei_hdr->length)) {
dev->iamthif_state = MEI_IAMTHIF_IDLE;
cl->status = -ENODEV;
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
return -ENODEV;
} else {
if (mei_flow_ctrl_reduce(dev, cl))
@@ -1023,8 +1012,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
dev->iamthif_flow_control_pending = true;
/* save iamthif cb sent to amthi client */
dev->iamthif_current_cb = cb_pos;
- list_move_tail(&cb_pos->cb_list,
- &dev->write_waiting_list.mei_cb.cb_list);
+ list_move_tail(&cb_pos->list, &dev->write_waiting_list.list);
}
} else if (*slots == dev->hbuf_depth) {
@@ -1044,7 +1032,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
dev->iamthif_msg_buf_index),
mei_hdr->length)) {
cl->status = -ENODEV;
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
} else {
dev->iamthif_msg_buf_index += mei_hdr->length;
}
@@ -1066,7 +1054,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
*
* returns 0 on success, <0 on failure.
*/
-static int mei_irq_thread_read_handler(struct mei_io_list *cmpl_list,
+static int mei_irq_thread_read_handler(struct mei_cl_cb *cmpl_list,
struct mei_device *dev,
s32 *slots)
{
@@ -1169,14 +1157,13 @@ end:
*
* returns 0 on success, <0 on failure.
*/
-static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
- struct mei_device *dev,
- s32 *slots)
+static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list,
+ struct mei_device *dev, s32 *slots)
{
struct mei_cl *cl;
struct mei_cl_cb *pos = NULL, *next = NULL;
- struct mei_io_list *list;
+ struct mei_cl_cb *list;
int ret;
if (!mei_hbuf_is_empty(dev)) {
@@ -1191,20 +1178,19 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n");
list = &dev->write_waiting_list;
- list_for_each_entry_safe(pos, next, &list->mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(pos, next, &list->list, list) {
cl = (struct mei_cl *)pos->file_private;
if (cl == NULL)
continue;
cl->status = 0;
- list_del(&pos->cb_list);
+ list_del(&pos->list);
if (MEI_WRITING == cl->writing_state &&
(pos->major_file_operations == MEI_WRITE) &&
(cl != &dev->iamthif_cl)) {
dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n");
cl->writing_state = MEI_WRITE_COMPLETE;
- list_add_tail(&pos->cb_list,
- &cmpl_list->mei_cb.cb_list);
+ list_add_tail(&pos->list, &cmpl_list->list);
}
if (cl == &dev->iamthif_cl) {
dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
@@ -1250,11 +1236,10 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
/* complete control write list CB */
dev_dbg(&dev->pdev->dev, "complete control write list cb.\n");
- list_for_each_entry_safe(pos, next,
- &dev->ctrl_wr_list.mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(pos, next, &dev->ctrl_wr_list.list, list) {
cl = (struct mei_cl *) pos->file_private;
if (!cl) {
- list_del(&pos->cb_list);
+ list_del(&pos->list);
return -ENODEV;
}
switch (pos->major_file_operations) {
@@ -1289,8 +1274,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
}
/* complete write list CB */
dev_dbg(&dev->pdev->dev, "complete write list cb.\n");
- list_for_each_entry_safe(pos, next,
- &dev->write_list.mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(pos, next, &dev->write_list.list, list) {
cl = (struct mei_cl *)pos->file_private;
if (cl == NULL)
continue;
@@ -1410,16 +1394,15 @@ void mei_timer(struct work_struct *work)
dev_dbg(&dev->pdev->dev, "freeing AMTHI for other requests\n");
- amthi_complete_list = &dev->amthi_read_complete_list.
- mei_cb.cb_list;
+ amthi_complete_list = &dev->amthi_read_complete_list.list;
- list_for_each_entry_safe(cb_pos, cb_next, amthi_complete_list, cb_list) {
+ list_for_each_entry_safe(cb_pos, cb_next, amthi_complete_list, list) {
cl_pos = cb_pos->file_object->private_data;
/* Finding the AMTHI entry. */
if (cl_pos == &dev->iamthif_cl)
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
}
if (dev->iamthif_current_cb)
mei_free_cb_private(dev->iamthif_current_cb);
@@ -1450,7 +1433,7 @@ out:
irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
{
struct mei_device *dev = (struct mei_device *) dev_id;
- struct mei_io_list complete_list;
+ struct mei_cl_cb complete_list;
struct mei_cl_cb *cb_pos = NULL, *cb_next = NULL;
struct mei_cl *cl;
s32 slots;
@@ -1530,14 +1513,13 @@ end:
wake_up_interruptible(&dev->wait_recvd_msg);
bus_message_received = false;
}
- if (list_empty(&complete_list.mei_cb.cb_list))
+ if (list_empty(&complete_list.list))
return IRQ_HANDLED;
- list_for_each_entry_safe(cb_pos, cb_next,
- &complete_list.mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(cb_pos, cb_next, &complete_list.list, list) {
cl = (struct mei_cl *)cb_pos->file_private;
- list_del(&cb_pos->cb_list);
+ list_del(&cb_pos->list);
if (cl) {
if (cl != &dev->iamthif_cl) {
dev_dbg(&dev->pdev->dev, "completing call back.\n");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.