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Cc: Sudeep Holla <sudeep.holla@arm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
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Subject: Re: [PATCH RFC 0/4] irqchip: qcom: add support for PDC interrupt
 controller
To: Lina Iyer <ilina@codeaurora.org>
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From: Sudeep Holla <sudeep.holla@arm.com>
Organization: ARM
Message-ID: <fd064e0c-d828-6555-7bf5-768fc2c1b142@arm.com>
Date: Fri, 26 Jan 2018 11:39:22 +0000
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On 25/01/18 20:05, Lina Iyer wrote:
> On Thu, Jan 25 2018 at 18:43 +0000, Sudeep Holla wrote:
>>

[...]

>> It may have some advantages to decentralize but will that not cause
>> issues in complex systems ? I assume even modem and other processors can
>> access and configure these wakeup interrupts. What happens if 2 such
>> processors try to access it at the same time ?
>>
> Every processor in the SoC has its own PDC and does exactly the same
> thing in SW. The hardware blocks are replicated for each of the
> 'subsystem' and they behave similarly.
> 

Ah that explains a lot.

-- 
Regards,
Sudeep