diff options
| author | Jiang Liu <[email protected]> | 2014-11-09 23:10:28 +0800 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2014-11-23 13:01:47 +0100 |
| commit | 9dde55b72dc80bfae4280ddce5dbd69ba8240813 (patch) | |
| tree | 1e36e2e0b199d46962ab89111328e34706f4353a | |
| parent | f86eff222fabe30da5c536ef2b51bd98d14cfe3b (diff) | |
genirq: Introduce callback irq_chip.irq_write_msi_msg
Introduce callback irq_chip.irq_write_msi_msg, so we can share common
code among MSI alike interrupt controllers, such as HPET and DMAR.
Signed-off-by: Jiang Liu <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Yingjoe Chen <[email protected]>
Cc: Yijing Wang <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
| -rw-r--r-- | include/linux/irq.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 677482bd8b92..8badf34baf0f 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -322,6 +322,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) * @irq_release_resources: optional to release resources acquired with * irq_request_resources * @irq_compose_msi_msg: optional to compose message content for MSI + * @irq_write_msi_msg: optional to write message content for MSI * @flags: chip specific flags */ struct irq_chip { @@ -359,6 +360,7 @@ struct irq_chip { void (*irq_release_resources)(struct irq_data *data); void (*irq_compose_msi_msg)(struct irq_data *data, struct msi_msg *msg); + void (*irq_write_msi_msg)(struct irq_data *data, struct msi_msg *msg); unsigned long flags; }; @@ -459,6 +461,12 @@ extern int irq_chip_set_affinity_parent(struct irq_data *data, bool force); #endif +static inline void irq_chip_write_msi_msg(struct irq_data *data, + struct msi_msg *msg) +{ + data->chip->irq_write_msi_msg(data, msg); +} + /* Handling of unhandled and spurious interrupts: */ extern void note_interrupt(unsigned int irq, struct irq_desc *desc, irqreturn_t action_ret); |