diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2016-12-04 15:22:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-12-06 11:03:22 +0100 |
| commit | 4a8efd4a1a9593a11c808da94e6609f6d4ee7276 (patch) | |
| tree | eab8e4f71db36b5d70e480f09d1e90acf6119a27 /drivers/misc/mei/mei_dev.h | |
| parent | 8d7cc7adcec55bfeb28cc2dc58b996c95f180337 (diff) | |
mei: synchronize irq before initiating a reset.
We need to synchronize irqs before issuing reset to make sure that the
clients communication is concluded and doesn't leak to the reset flow
and confusing the state machine.
This issue is happening during suspend/resume stress testing.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 82e69a00b7a1..0e94df517410 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -267,6 +267,7 @@ struct mei_cl { * @intr_clear : clear pending interrupts * @intr_enable : enable interrupts * @intr_disable : disable interrupts + * @synchronize_irq : synchronize irqs * * @hbuf_free_slots : query for write buffer empty slots * @hbuf_is_ready : query if write buffer is empty @@ -288,7 +289,6 @@ struct mei_hw_ops { int (*hw_start)(struct mei_device *dev); void (*hw_config)(struct mei_device *dev); - int (*fw_status)(struct mei_device *dev, struct mei_fw_status *fw_sts); enum mei_pg_state (*pg_state)(struct mei_device *dev); bool (*pg_in_transition)(struct mei_device *dev); @@ -297,6 +297,7 @@ struct mei_hw_ops { void (*intr_clear)(struct mei_device *dev); void (*intr_enable)(struct mei_device *dev); void (*intr_disable)(struct mei_device *dev); + void (*synchronize_irq)(struct mei_device *dev); int (*hbuf_free_slots)(struct mei_device *dev); bool (*hbuf_is_ready)(struct mei_device *dev); @@ -640,6 +641,11 @@ static inline void mei_disable_interrupts(struct mei_device *dev) dev->ops->intr_disable(dev); } +static inline void mei_synchronize_irq(struct mei_device *dev) +{ + dev->ops->synchronize_irq(dev); +} + static inline bool mei_host_is_ready(struct mei_device *dev) { return dev->ops->host_is_ready(dev); |