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irqchip updates for 4.14-rc5

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- Fix unfortunate mistake in the GICv3 ITS binding example
 - Two fixes for the recently merged GICv4 support
 - GICv3 ITS 52bit PA fixes
 - Generic irqchip mask-ack fix, and its application to the tango irqchip
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Merge tag 'irqchip-4.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip updates for 4.14-rc5 from Marc Zyngier:

- Fix unfortunate mistake in the GICv3 ITS binding example
- Two fixes for the recently merged GICv4 support
- GICv3 ITS 52bit PA fixes
- Generic irqchip mask-ack fix, and its application to the tango irqchip
This commit is contained in:
Thomas Gleixner 2017-10-16 10:26:46 +02:00
commit 3d51969ce3
6 changed files with 52 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

15
kernel/irq/generic-chip.c
View file

@ -135,17 +135,26 @@ void irq_gc_ack_clr_bit(struct irq_data *d)
}
/**
* irq_gc_mask_disable_reg_and_ack - Mask and ack pending interrupt
* irq_gc_mask_disable_and_ack_set - Mask and ack pending interrupt
* @d: irq_data
*
* This generic implementation of the irq_mask_ack method is for chips
* with separate enable/disable registers instead of a single mask
* register and where a pending interrupt is acknowledged by setting a
* bit.
*
* Note: This is the only permutation currently used. Similar generic
* functions should be added here if other permutations are required.
*/
void irq_gc_mask_disable_reg_and_ack(struct irq_data *d)
void irq_gc_mask_disable_and_ack_set(struct irq_data *d)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct irq_chip_type *ct = irq_data_get_chip_type(d);
u32 mask = d->mask;
irq_gc_lock(gc);
irq_reg_writel(gc, mask, ct->regs.mask);
irq_reg_writel(gc, mask, ct->regs.disable);
*ct->mask_cache &= ~mask;
irq_reg_writel(gc, mask, ct->regs.ack);
irq_gc_unlock(gc);
}