diff options
| author | Anup Patel <apatel@ventanamicro.com> | 2025-02-17 11:56:51 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-02-20 17:19:26 +0300 |
| commit | e54b1b5e89ae765e6d71d41883a8f551fde8d0ab (patch) | |
| tree | 75ce7b0cf85c88103d6aa61fbfeb55f7b0c732b0 /include/linux | |
| parent | 751dc837dabd275d0ab165fc737c10f80e2e863a (diff) | |
| download | linux-e54b1b5e89ae765e6d71d41883a8f551fde8d0ab.tar.xz | |
genirq: Introduce irq_can_move_in_process_context()
Interrupt controller drivers which enable CONFIG_GENERIC_PENDING_IRQ
require to know whether an interrupt can be moved in process context or not
to decide whether they need to invoke the work around for non-atomic MSI
updates or not.
This information can be retrieved via irq_can_move_pcntxt(). That helper
requires access to the top-most interrupt domain data, but the driver which
requires this is usually further down in the hierarchy.
Introduce irq_can_move_in_process_context() which retrieves that
information from the top-most interrupt domain data.
[ tglx: Massaged change log ]
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250217085657.789309-6-apatel@ventanamicro.com
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/irq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 56f6583093d2..dd5df1e2d032 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -615,6 +615,7 @@ extern int irq_affinity_online_cpu(unsigned int cpu); #endif #if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ) +bool irq_can_move_in_process_context(struct irq_data *data); void __irq_move_irq(struct irq_data *data); static inline void irq_move_irq(struct irq_data *data) { @@ -623,6 +624,7 @@ static inline void irq_move_irq(struct irq_data *data) } void irq_move_masked_irq(struct irq_data *data); #else +static inline bool irq_can_move_in_process_context(struct irq_data *data) { return true; } static inline void irq_move_irq(struct irq_data *data) { } static inline void irq_move_masked_irq(struct irq_data *data) { } #endif |