lkml.org 
[lkml]   [2017]   [Aug]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RCF PATCH] genirq/debugfs: Triggering of interrupts from userspace
From
Date
On 16/08/17 15:50, Thomas Gleixner wrote:
> On Thu, 20 Jul 2017, Marc Zyngier wrote:
>> When developing new (and therefore buggy) interrupt related
>> code, it can sometimes be useful to inject interrupts without
>> having to rely on a device to actually generate them.
>>
>> This functionnality relies on the irqchip driver to expose
>> a irq_set_irqchip_state(IRQCHIP_STATE_PENDING) callback.
>
> I like that, but can we please extend that to utilize the irq resend
> mechanism:
>
> desc = ....;
>
> chip_bus_lock(desc);
> raw_spin_lock_irq(&desc->lock);
>
> if (has_set_state(desc))
> set_state(desc);
> else
> check_irq_resend(desc);
>
> or something to that effect?
Definitely. That'd allow more HW to be supported. I'll have a look.

Thanks,

M.
--
Jazz is not dead. It just smells funny...

\
 
 \ /
  Last update: 2017-08-16 16:58    [W:0.608 / U:4.492 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site