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-rw-r--r--drivers/misc/mei/amthif.c1
-rw-r--r--drivers/misc/mei/bus.c5
-rw-r--r--drivers/misc/mei/client.c15
-rw-r--r--drivers/misc/mei/client.h6
-rw-r--r--drivers/misc/mei/hbm.c10
-rw-r--r--drivers/misc/mei/hw-me-regs.h6
-rw-r--r--drivers/misc/mei/hw-me.c22
-rw-r--r--drivers/misc/mei/init.c6
-rw-r--r--drivers/misc/mei/main.c11
-rw-r--r--drivers/misc/mei/mei_dev.h6
-rw-r--r--drivers/misc/mei/nfc.c10
-rw-r--r--drivers/misc/mei/pci-me.c5
12 files changed, 69 insertions, 34 deletions
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index b3e50984d2c..3db9291849f 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -57,6 +57,7 @@ void mei_amthif_reset_params(struct mei_device *dev)
dev->iamthif_ioctl = false;
dev->iamthif_state = MEI_IAMTHIF_IDLE;
dev->iamthif_timer = 0;
+ dev->iamthif_stall_timer = 0;
}
/**
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 9ecd49a7be1..99cc0b07a71 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -295,10 +295,13 @@ int __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
if (cl->reading_state != MEI_READ_COMPLETE &&
!waitqueue_active(&cl->rx_wait)) {
+
mutex_unlock(&dev->device_lock);
if (wait_event_interruptible(cl->rx_wait,
- (MEI_READ_COMPLETE == cl->reading_state))) {
+ cl->reading_state == MEI_READ_COMPLETE ||
+ mei_cl_is_transitioning(cl))) {
+
if (signal_pending(current))
return -EINTR;
return -ERESTARTSYS;
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index e310ca6ed1a..0bb2aa2c6fb 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -664,7 +664,6 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
goto err;
cb->fop_type = MEI_FOP_READ;
- cl->read_cb = cb;
if (dev->hbuf_is_ready) {
dev->hbuf_is_ready = false;
if (mei_hbm_cl_flow_control_req(dev, cl)) {
@@ -675,6 +674,9 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
} else {
list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
}
+
+ cl->read_cb = cb;
+
return rets;
err:
mei_io_cb_free(cb);
@@ -799,7 +801,6 @@ void mei_cl_all_disconnect(struct mei_device *dev)
list_for_each_entry_safe(cl, next, &dev->file_list, link) {
cl->state = MEI_FILE_DISCONNECTED;
cl->mei_flow_ctrl_creds = 0;
- cl->read_cb = NULL;
cl->timer_count = 0;
}
}
@@ -829,8 +830,16 @@ void mei_cl_all_read_wakeup(struct mei_device *dev)
void mei_cl_all_write_clear(struct mei_device *dev)
{
struct mei_cl_cb *cb, *next;
+ struct list_head *list;
+
+ list = &dev->write_list.list;
+ list_for_each_entry_safe(cb, next, list, list) {
+ list_del(&cb->list);
+ mei_io_cb_free(cb);
+ }
- list_for_each_entry_safe(cb, next, &dev->write_list.list, list) {
+ list = &dev->write_waiting_list.list;
+ list_for_each_entry_safe(cb, next, list, list) {
list_del(&cb->list);
mei_io_cb_free(cb);
}
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index cfdb144526a..467d9dda97f 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -76,6 +76,12 @@ static inline bool mei_cl_cmp_id(const struct mei_cl *cl1,
(cl1->host_client_id == cl2->host_client_id) &&
(cl1->me_client_id == cl2->me_client_id);
}
+static inline bool mei_cl_is_transitioning(struct mei_cl *cl)
+{
+ return (MEI_FILE_INITIALIZING == cl->state ||
+ MEI_FILE_DISCONNECTED == cl->state ||
+ MEI_FILE_DISCONNECTING == cl->state);
+}
int mei_cl_flow_ctrl_creds(struct mei_cl *cl);
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 6916045166e..23b5b7bcba9 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -35,11 +35,15 @@ static void mei_hbm_me_cl_allocate(struct mei_device *dev)
struct mei_me_client *clients;
int b;
+ dev->me_clients_num = 0;
+ dev->me_client_presentation_num = 0;
+ dev->me_client_index = 0;
+
/* count how many ME clients we have */
for_each_set_bit(b, dev->me_clients_map, MEI_CLIENTS_MAX)
dev->me_clients_num++;
- if (dev->me_clients_num <= 0)
+ if (dev->me_clients_num == 0)
return;
kfree(dev->me_clients);
@@ -221,7 +225,7 @@ static int mei_hbm_prop_req(struct mei_device *dev)
struct hbm_props_request *prop_req;
const size_t len = sizeof(struct hbm_props_request);
unsigned long next_client_index;
- u8 client_num;
+ unsigned long client_num;
client_num = dev->me_client_presentation_num;
@@ -650,8 +654,6 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
dev->hbm_state == MEI_HBM_ENUM_CLIENTS) {
dev->init_clients_timer = 0;
- dev->me_client_presentation_num = 0;
- dev->me_client_index = 0;
mei_hbm_me_cl_allocate(dev);
dev->hbm_state = MEI_HBM_CLIENT_PROPERTIES;
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index 6a203b6e834..66f411a6e8e 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -109,8 +109,12 @@
#define MEI_DEV_ID_PPT_2 0x1CBA /* Panther Point */
#define MEI_DEV_ID_PPT_3 0x1DBA /* Panther Point */
-#define MEI_DEV_ID_LPT 0x8C3A /* Lynx Point */
+#define MEI_DEV_ID_LPT_H 0x8C3A /* Lynx Point H */
+#define MEI_DEV_ID_LPT_W 0x8D3A /* Lynx Point - Wellsburg */
#define MEI_DEV_ID_LPT_LP 0x9C3A /* Lynx Point LP */
+#define MEI_DEV_ID_LPT_HR 0x8CBA /* Lynx Point H Refresh */
+
+#define MEI_DEV_ID_WPT_LP 0x9CBA /* Wildcat Point LP */
/*
* MEI HW Section
*/
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 822170f0034..1bf3f8b5ce3 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -176,16 +176,14 @@ static void mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
struct mei_me_hw *hw = to_me_hw(dev);
u32 hcsr = mei_hcsr_read(hw);
- dev_dbg(&dev->pdev->dev, "before reset HCSR = 0x%08x.\n", hcsr);
-
- hcsr |= (H_RST | H_IG);
+ hcsr |= H_RST | H_IG | H_IS;
if (intr_enable)
hcsr |= H_IE;
else
- hcsr |= ~H_IE;
+ hcsr &= ~H_IE;
- mei_hcsr_set(hw, hcsr);
+ mei_me_reg_write(hw, H_CSR, hcsr);
if (dev->dev_state == MEI_DEV_POWER_DOWN)
mei_me_hw_reset_release(dev);
@@ -238,14 +236,18 @@ static int mei_me_hw_ready_wait(struct mei_device *dev)
if (mei_me_hw_is_ready(dev))
return 0;
+ dev->recvd_hw_ready = false;
mutex_unlock(&dev->device_lock);
err = wait_event_interruptible_timeout(dev->wait_hw_ready,
- dev->recvd_hw_ready, MEI_INTEROP_TIMEOUT);
+ dev->recvd_hw_ready,
+ mei_secs_to_jiffies(MEI_INTEROP_TIMEOUT));
mutex_lock(&dev->device_lock);
if (!err && !dev->recvd_hw_ready) {
+ if (!err)
+ err = -ETIMEDOUT;
dev_err(&dev->pdev->dev,
- "wait hw ready failed. status = 0x%x\n", err);
- return -ETIMEDOUT;
+ "wait hw ready failed. status = %d\n", err);
+ return err;
}
dev->recvd_hw_ready = false;
@@ -482,7 +484,9 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
/* check if ME wants a reset */
if (!mei_hw_is_ready(dev) &&
dev->dev_state != MEI_DEV_RESETTING &&
- dev->dev_state != MEI_DEV_INITIALIZING) {
+ dev->dev_state != MEI_DEV_INITIALIZING &&
+ dev->dev_state != MEI_DEV_POWER_DOWN &&
+ dev->dev_state != MEI_DEV_POWER_UP) {
dev_dbg(&dev->pdev->dev, "FW not ready.\n");
mei_reset(dev, 1);
mutex_unlock(&dev->device_lock);
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index f580d30bb78..878bc1c29d2 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -143,7 +143,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
dev->hbm_state = MEI_HBM_IDLE;
- if (dev->dev_state != MEI_DEV_INITIALIZING) {
+ if (dev->dev_state != MEI_DEV_INITIALIZING &&
+ dev->dev_state != MEI_DEV_POWER_UP) {
if (dev->dev_state != MEI_DEV_DISABLED &&
dev->dev_state != MEI_DEV_POWER_DOWN)
dev->dev_state = MEI_DEV_RESETTING;
@@ -163,6 +164,9 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
memset(&dev->wr_ext_msg, 0, sizeof(dev->wr_ext_msg));
}
+ /* we're already in reset, cancel the init timer */
+ dev->init_clients_timer = 0;
+
dev->me_clients_num = 0;
dev->rd_msg_hdr = 0;
dev->wd_pending = false;
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 053139f6108..701698de5ac 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -262,19 +262,16 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
mutex_unlock(&dev->device_lock);
if (wait_event_interruptible(cl->rx_wait,
- (MEI_READ_COMPLETE == cl->reading_state ||
- MEI_FILE_INITIALIZING == cl->state ||
- MEI_FILE_DISCONNECTED == cl->state ||
- MEI_FILE_DISCONNECTING == cl->state))) {
+ MEI_READ_COMPLETE == cl->reading_state ||
+ mei_cl_is_transitioning(cl))) {
+
if (signal_pending(current))
return -EINTR;
return -ERESTARTSYS;
}
mutex_lock(&dev->device_lock);
- if (MEI_FILE_INITIALIZING == cl->state ||
- MEI_FILE_DISCONNECTED == cl->state ||
- MEI_FILE_DISCONNECTING == cl->state) {
+ if (mei_cl_is_transitioning(cl)) {
rets = -EBUSY;
goto out;
}
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 4de5140e737..73c7700aee2 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -402,9 +402,9 @@ struct mei_device {
struct mei_me_client *me_clients; /* Note: memory has to be allocated */
DECLARE_BITMAP(me_clients_map, MEI_CLIENTS_MAX);
DECLARE_BITMAP(host_clients_map, MEI_CLIENTS_MAX);
- u8 me_clients_num;
- u8 me_client_presentation_num;
- u8 me_client_index;
+ unsigned long me_clients_num;
+ unsigned long me_client_presentation_num;
+ unsigned long me_client_index;
struct mei_cl wd_cl;
enum mei_wd_states wd_state;
diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c
index d0c6907dfd9..994ca4aff1a 100644
--- a/drivers/misc/mei/nfc.c
+++ b/drivers/misc/mei/nfc.c
@@ -485,8 +485,11 @@ int mei_nfc_host_init(struct mei_device *dev)
if (ndev->cl_info)
return 0;
- cl_info = mei_cl_allocate(dev);
- cl = mei_cl_allocate(dev);
+ ndev->cl_info = mei_cl_allocate(dev);
+ ndev->cl = mei_cl_allocate(dev);
+
+ cl = ndev->cl;
+ cl_info = ndev->cl_info;
if (!cl || !cl_info) {
ret = -ENOMEM;
@@ -527,10 +530,9 @@ int mei_nfc_host_init(struct mei_device *dev)
cl->device_uuid = mei_nfc_guid;
+
list_add_tail(&cl->device_link, &dev->device_list);
- ndev->cl_info = cl_info;
- ndev->cl = cl;
ndev->req_id = 1;
INIT_WORK(&ndev->init_work, mei_nfc_init);
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 0f268329bd3..371c65ae6be 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -79,8 +79,11 @@ static DEFINE_PCI_DEVICE_TABLE(mei_me_pci_tbl) = {
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_1)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_H)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_W)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_HR)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_WPT_LP)},
/* required last entry */
{0, }
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-28 05:42:24 +0000