lkml.org 
[lkml]   [2015]   [Jun]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 2/3] IRQ/Gic-V3: Change arm-gic-its to support the Mbigen interrupt


在 2015/6/26 18:40, Marc Zyngier 写道:
>
> My opinion is that we need to be able to lookup the domain from the core
> code without any of these hacks, and this is what I'm working on at the
> moment. There is no way external code will be allowed to mess with the
> internals of the ITS.
>
> For the time being, just expose the domain with a helper (you can match
> it with the of_node).
Do you mean add a fucntion in ITS likes below:

struct irq_domain *get_its_domain(struct device_node *node)
{
struct its_node *its = NULL;

list_for_each_entry(its, &its_nodes, entry) {
if(its->msi_chip.of_node == node)
break;
}

return (its)?its->domain:NULL;
}

How about add a '.match ' member in its_domain_ops
just like:
.match = get_its_domain;

So, I can use the fucntion 'irq_find_host' in mbigne driver

>In the long run, you should be able to look it up
> directly from the domain list.
>
I think the domain list you said is 'irq_domain_list'
which defined in Irqdomain.c
static LIST_HEAD(irq_domain_list);

Thanks!



\
 
 \ /
  Last update: 2015-06-26 14:21    [W:0.076 / U:0.780 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site