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mei: use non cached hcsr for interrupt enablement 

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2013-01-08 23:07:28 +02:00 committed by Greg Kroah-Hartman
parent adfba3220b
commit 9ea73ddd4f
3 changed files with 12 additions and 9 deletions
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17
drivers/misc/mei/hw-me.c
View File

@ -106,8 +106,9 @@ void mei_hcsr_set(struct mei_device *dev)
*/
void mei_clear_interrupts(struct mei_device *dev)
{
if ((dev->host_hw_state & H_IS) == H_IS)
mei_reg_write(dev, H_CSR, dev->host_hw_state);
u32 hcsr = mei_hcsr_read(dev);
if ((hcsr & H_IS) == H_IS)
mei_reg_write(dev, H_CSR, hcsr);
}
/**
@ -117,8 +118,10 @@ void mei_clear_interrupts(struct mei_device *dev)
*/
void mei_enable_interrupts(struct mei_device *dev)
{
dev->host_hw_state |= H_IE;
mei_hcsr_set(dev);
u32 hcsr = mei_hcsr_read(dev);
hcsr |= H_IE;
hcsr &= ~H_IS;
mei_reg_write(dev, H_CSR, hcsr);
}
/**
@ -128,8 +131,10 @@ void mei_enable_interrupts(struct mei_device *dev)
*/
void mei_disable_interrupts(struct mei_device *dev)
{
dev->host_hw_state &= ~H_IE;
mei_hcsr_set(dev);
u32 hcsr = mei_hcsr_read(dev);
hcsr &= ~H_IE;
hcsr &= ~H_IS;
mei_reg_write(dev, H_CSR, hcsr);
}
/**

2
drivers/misc/mei/interrupt.c
View File

@ -691,7 +691,6 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
/* initialize our complete list */
mutex_lock(&dev->device_lock);
mei_io_list_init(&complete_list);
dev->host_hw_state = mei_hcsr_read(dev);
/* Ack the interrupt here
* In case of MSI we don't go through the quick handler */
@ -710,6 +709,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
dev->host_hw_state = mei_hcsr_read(dev);
/* check if we need to start the dev */
if ((dev->host_hw_state & H_RDY) == 0) {
if ((dev->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA) {

2
drivers/misc/mei/main.c
View File

@ -915,8 +915,6 @@ static int mei_probe(struct pci_dev *pdev,
return 0;
release_irq:
/* disable interrupts */
dev->host_hw_state = mei_hcsr_read(dev);
mei_disable_interrupts(dev);
flush_scheduled_work();
free_irq(pdev->irq, dev);