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Merge tag 'irqchip-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

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Pull irqchip updates from Marc Zyngier:

 - A bunch of new irqchip drivers (RDA8810PL, Madera, imx-irqsteer)
 - Updates for new (and old) platforms (i.MX8MQ, F1C100s)
 - A number of SPDX cleanups
 - A workaround for a very broken GICv3 implementation
 - A platform-msi fix
 - Various cleanups
This commit is contained in:
Thomas Gleixner
2018-12-18 18:37:27 +01:00
parent c5f48c0a7a fb94109b76
commit ff3730a497
28 changed files with 1190 additions and 127 deletions
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23
kernel/irq/irq_sim.c
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@@ -34,9 +34,20 @@ static struct irq_chip irq_sim_irqchip = {
static void irq_sim_handle_irq(struct irq_work *work)
{
struct irq_sim_work_ctx *work_ctx;
unsigned int offset = 0;
struct irq_sim *sim;
int irqnum;
work_ctx = container_of(work, struct irq_sim_work_ctx, work);
handle_simple_irq(irq_to_desc(work_ctx->irq));
sim = container_of(work_ctx, struct irq_sim, work_ctx);
while (!bitmap_empty(work_ctx->pending, sim->irq_count)) {
offset = find_next_bit(work_ctx->pending,
sim->irq_count, offset);
clear_bit(offset, work_ctx->pending);
irqnum = irq_sim_irqnum(sim, offset);
handle_simple_irq(irq_to_desc(irqnum));
}
}
/**
@@ -63,6 +74,13 @@ int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs)
return sim->irq_base;
}
sim->work_ctx.pending = bitmap_zalloc(num_irqs, GFP_KERNEL);
if (!sim->work_ctx.pending) {
kfree(sim->irqs);
irq_free_descs(sim->irq_base, num_irqs);
return -ENOMEM;
}
for (i = 0; i < num_irqs; i++) {
sim->irqs[i].irqnum = sim->irq_base + i;
sim->irqs[i].enabled = false;
@@ -89,6 +107,7 @@ EXPORT_SYMBOL_GPL(irq_sim_init);
void irq_sim_fini(struct irq_sim *sim)
{
irq_work_sync(&sim->work_ctx.work);
bitmap_free(sim->work_ctx.pending);
irq_free_descs(sim->irq_base, sim->irq_count);
kfree(sim->irqs);
}
@@ -143,7 +162,7 @@ EXPORT_SYMBOL_GPL(devm_irq_sim_init);
void irq_sim_fire(struct irq_sim *sim, unsigned int offset)
{
if (sim->irqs[offset].enabled) {
sim->work_ctx.irq = irq_sim_irqnum(sim, offset);
set_bit(offset, sim->work_ctx.pending);
irq_work_queue(&sim->work_ctx.work);
}
}