diff options
Diffstat (limited to 'drivers/misc/mei/hw-txe.c')
| -rw-r--r-- | drivers/misc/mei/hw-txe.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c index e6e5e55a12ed..e9f8c0aeec13 100644 --- a/drivers/misc/mei/hw-txe.c +++ b/drivers/misc/mei/hw-txe.c @@ -19,7 +19,7 @@ #include <linux/ktime.h> #include <linux/delay.h> #include <linux/kthread.h> -#include <linux/irqreturn.h> +#include <linux/interrupt.h> #include <linux/pm_runtime.h> #include <linux/mei.h> @@ -441,6 +441,18 @@ static void mei_txe_intr_enable(struct mei_device *dev) } /** + * mei_txe_synchronize_irq - wait for pending IRQ handlers + * + * @dev: the device structure + */ +static void mei_txe_synchronize_irq(struct mei_device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev->dev); + + synchronize_irq(pdev->irq); +} + +/** * mei_txe_pending_interrupts - check if there are pending interrupts * only Aliveness, Input ready, and output doorbell are of relevance * @@ -691,7 +703,8 @@ static void mei_txe_hw_config(struct mei_device *dev) */ static int mei_txe_write(struct mei_device *dev, - struct mei_msg_hdr *header, unsigned char *buf) + struct mei_msg_hdr *header, + const unsigned char *buf) { struct mei_txe_hw *hw = to_txe_hw(dev); unsigned long rem; @@ -981,11 +994,13 @@ static bool mei_txe_check_and_ack_intrs(struct mei_device *dev, bool do_ack) hisr = mei_txe_br_reg_read(hw, HISR_REG); aliveness = mei_txe_aliveness_get(dev); - if (hhisr & IPC_HHIER_SEC && aliveness) + if (hhisr & IPC_HHIER_SEC && aliveness) { ipc_isr = mei_txe_sec_reg_read_silent(hw, SEC_IPC_HOST_INT_STATUS_REG); - else + } else { ipc_isr = 0; + hhisr &= ~IPC_HHIER_SEC; + } generated = generated || (hisr & HISR_INT_STS_MSK) || @@ -1165,6 +1180,7 @@ static const struct mei_hw_ops mei_txe_hw_ops = { .intr_clear = mei_txe_intr_clear, .intr_enable = mei_txe_intr_enable, .intr_disable = mei_txe_intr_disable, + .synchronize_irq = mei_txe_synchronize_irq, .hbuf_free_slots = mei_txe_hbuf_empty_slots, .hbuf_is_ready = mei_txe_is_input_ready, |
