diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-03-20 13:44:09 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-03-20 19:12:15 +0000 |
| commit | 65da7d1979c229b69d3fbec63350a6ae26232ad6 (patch) | |
| tree | 31bfa20238e0c93a288282ed8a921a1767c63164 /drivers/irqchip | |
| parent | 6ef6386ef7c15bea21afce06f951c87de7e2a562 (diff) | |
| download | linux-65da7d1979c229b69d3fbec63350a6ae26232ad6.tar.bz2 | |
irqchip/gic-v3: Do not check trigger configuration of partitionned LPIs
We cannot know the trigger of partitionned PPIs ahead of time
(when we instanciate the partitions), so let's not check them
early.
Reported-by: JeffyChen <jeffy.chen@rock-chips.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 5bb7bb22f1c1..0d8e326ebf19 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -892,6 +892,8 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq, return 0; } +#define GIC_IRQ_TYPE_PARTITION (GIC_IRQ_TYPE_LPI + 1) + static int gic_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec, unsigned long *hwirq, @@ -906,6 +908,7 @@ static int gic_irq_domain_translate(struct irq_domain *d, *hwirq = fwspec->param[1] + 32; break; case 1: /* PPI */ + case GIC_IRQ_TYPE_PARTITION: *hwirq = fwspec->param[1] + 16; break; case GIC_IRQ_TYPE_LPI: /* LPI */ @@ -917,8 +920,12 @@ static int gic_irq_domain_translate(struct irq_domain *d, *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK; - /* Make it clear that broken DTs are... broken */ - WARN_ON(*type == IRQ_TYPE_NONE); + /* + * Make it clear that broken DTs are... broken. + * Partitionned PPIs are an unfortunate exception. + */ + WARN_ON(*type == IRQ_TYPE_NONE && + fwspec->param[0] != GIC_IRQ_TYPE_PARTITION); return 0; } @@ -1176,7 +1183,7 @@ static void __init gic_populate_ppi_partitions(struct device_node *gic_node) .fwnode = gic_data.fwnode, .param_count = 3, .param = { - [0] = 1, + [0] = GIC_IRQ_TYPE_PARTITION, [1] = i, [2] = IRQ_TYPE_NONE, }, |