On 14/10/15 10:17, Thomas Gleixner wrote:
> Marc,
>
> On Wed, 14 Oct 2015, Marc Zyngier wrote:
>> To me, it feels like we're spreading the complexity across multiple
>> layers instead of keeping it localized. It also means that next time
>> some crazy HW dude comes up with a similar idea (and I ha
Marc,
On Wed, 14 Oct 2015, Marc Zyngier wrote:
> To me, it feels like we're spreading the complexity across multiple
> layers instead of keeping it localized. It also means that next time
> some crazy HW dude comes up with a similar idea (and I have little doubt
> this will happen sooner than late
在 2015/10/14 16:20, Thomas Gleixner 写道:
> On Wed, 14 Oct 2015, majun (F) wrote:
>> But there is no interrupt-map property in GIC or mbigen node.
>
> Again: I'm not a DT expert. Please discuss that with Marc and the DT
> wizards.
>
> Thanks,
>
> tglx
>
> .
Ok.
Marc, what's your suggesti
Hi Thomas,
Sorry it took me so long to come back to you on that one, I really
needed to wrap my head around it.
On 11/10/15 17:45, Thomas Gleixner wrote:
> On Sun, 11 Oct 2015, Marc Zyngier wrote:
>> On Sun, 11 Oct 2015 11:54:49 +0200
>> Thomas Gleixner wrote:
>>
>>> On Sat, 10 Oct 2015, Marc Zy
Hi Thomas:
在 2015/10/13 14:55, Thomas Gleixner 写道:
> Majun,
>
> On Tue, 13 Oct 2015, majun (F) wrote:
>> 在 2015/10/12 0:45, Thomas Gleixner 写道:
>>> So now in the mbigen case this looks like this:
>>>
>>> [MSI-BUS] - [MBIGEN]<---[Device interrupt]
>>>
>>> Again, you have a
On Wed, 14 Oct 2015, majun (F) wrote:
> But there is no interrupt-map property in GIC or mbigen node.
Again: I'm not a DT expert. Please discuss that with Marc and the DT
wizards.
Thanks,
tglx
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Majun,
On Tue, 13 Oct 2015, majun (F) wrote:
> 在 2015/10/12 0:45, Thomas Gleixner 写道:
> > So now in the mbigen case this looks like this:
> >
> > [MSI-BUS] - [MBIGEN]<---[Device interrupt]
> >
> > Again, you have a 'wire' from the device to the MSI unit (MBIGEN) and
> > w
Hi Thomas:
在 2015/10/12 0:45, Thomas Gleixner 写道:
> On Sun, 11 Oct 2015, Marc Zyngier wrote:
>> On Sun, 11 Oct 2015 11:54:49 +0200
>> Thomas Gleixner wrote:
>>
>>> On Sat, 10 Oct 2015, Marc Zyngier wrote:
On Sat, 10 Oct 2015 17:01:32 +0800
"majun (F)" wrote:
> But there is a proble
On Sun, 11 Oct 2015, Marc Zyngier wrote:
> On Sun, 11 Oct 2015 11:54:49 +0200
> Thomas Gleixner wrote:
>
> > On Sat, 10 Oct 2015, Marc Zyngier wrote:
> > > On Sat, 10 Oct 2015 17:01:32 +0800
> > > "majun (F)" wrote:
> > > > But there is a problem If i make the structure like you said.
> > > >
>
On Sun, 11 Oct 2015 11:54:49 +0200
Thomas Gleixner wrote:
> On Sat, 10 Oct 2015, Marc Zyngier wrote:
> > On Sat, 10 Oct 2015 17:01:32 +0800
> > "majun (F)" wrote:
> > > But there is a problem If i make the structure like you said.
> > >
> > > For example, my hardware structure likes below:
> >
On Sat, 10 Oct 2015, Marc Zyngier wrote:
> On Sat, 10 Oct 2015 17:01:32 +0800
> "majun (F)" wrote:
> > But there is a problem If i make the structure like you said.
> >
> > For example, my hardware structure likes below:
> >
> > uart --> mbigen --> ITS-pMSI --> ITS --> GIC
> > virq1
> >
On Sat, 10 Oct 2015 17:01:32 +0800
"majun (F)" wrote:
>
>
> 在 2015/10/9 21:47, Thomas Gleixner 写道:
> > On Sun, 4 Oct 2015, majun (F) wrote:
> +info->reg_offset = get_mbigen_vec_reg_addr(info->nid,
> info->local_pin_offset);
> >>>
> >>> So you fill in a structure with 5 fields
在 2015/10/9 21:47, Thomas Gleixner 写道:
> On Sun, 4 Oct 2015, majun (F) wrote:
+ info->reg_offset = get_mbigen_vec_reg_addr(info->nid,
info->local_pin_offset);
>>>
>>> So you fill in a structure with 5 fields and the only information
[...]
>> On the other hand, it's a interrupt control
On Sun, 4 Oct 2015, majun (F) wrote:
> >> + info->reg_offset = get_mbigen_vec_reg_addr(info->nid,
> >> info->local_pin_offset);
> >
> > So you fill in a structure with 5 fields and the only information
> > which is ever used is local_pin_offset.
> >
> > What's the point of this exercise?
>
>
Hi Thomas:
在 2015/10/1 5:37, Thomas Gleixner 写道:
> On Wed, 30 Sep 2015, MaJun wrote:
>
> First of all.
>
> [PATCH v5 1/3] initialize each mbigen device node as a interrupt controller
>
> is not a proper subject line, but that's the least of your problems.
>
On Wed, 30 Sep 2015, MaJun wrote:
First of all.
[PATCH v5 1/3] initialize each mbigen device node as a interrupt controller
is not a proper subject line, but that's the least of your problems.
> +#include
> +#include
> +#include
> +#include
> +#include
>
From: Ma Jun
Mbigen means Message Based Interrupt Generator(MBIGEN).
Its a kind of interrupt controller that collects
the interrupts from external devices and generate msi interrupt.
Mbigen is applied to reduce the number of wire connected interrupts.
As the peripherals increasing, the interr
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