diff options
| author | Runmin Wang <runminw@codeaurora.org> | 2017-01-23 12:30:07 -0800 |
|---|---|---|
| committer | Runmin Wang <runminw@codeaurora.org> | 2017-01-23 16:01:01 -0800 |
| commit | 778031ccb58be6dccfb46314965bc8ff52c55f3d (patch) | |
| tree | ca2b29ff6ddf75cf6e1b6db8ff114535f1a52be0 /kernel/irq/chip.c | |
| parent | 1cc869442a204358ddb29d4c58cc4fd84847fe85 (diff) | |
genirq: Add IRQ_AFFINITY_MANAGED flag
Add IRQ_AFFINITY_MANAGED flag and related kernel APIs so that
kernel driver can modify an irq's status in such a way that
user space affinity change will be ignored. Kernel space's
affinity setting will not be changed.
Change-Id: Ib2d5ea651263bff4317562af69079ad950c9e71e
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
Diffstat (limited to 'kernel/irq/chip.c')
| -rw-r--r-- | kernel/irq/chip.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 15206453b12a..9812d9c0d483 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -836,7 +836,8 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set) irq_settings_clr_and_set(desc, clr, set); irqd_clear(&desc->irq_data, IRQD_NO_BALANCING | IRQD_PER_CPU | - IRQD_TRIGGER_MASK | IRQD_LEVEL | IRQD_MOVE_PCNTXT); + IRQD_TRIGGER_MASK | IRQD_LEVEL | IRQD_MOVE_PCNTXT | + IRQD_AFFINITY_MANAGED); if (irq_settings_has_no_balance_set(desc)) irqd_set(&desc->irq_data, IRQD_NO_BALANCING); if (irq_settings_is_per_cpu(desc)) @@ -845,6 +846,8 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set) irqd_set(&desc->irq_data, IRQD_MOVE_PCNTXT); if (irq_settings_is_level(desc)) irqd_set(&desc->irq_data, IRQD_LEVEL); + if (irq_settings_has_affinity_managed_set(desc)) + irqd_set(&desc->irq_data, IRQD_AFFINITY_MANAGED); irqd_set(&desc->irq_data, irq_settings_get_trigger_mask(desc)); |