linux-kernel - Re: Using fixed LPI number for some Device ID

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Message-ID: <7205d3e0-a03a-a06c-f3f4-9a28e58931e0@huawei.com>
Date:   Sat, 31 Oct 2020 11:10:24 +0800
From:   Dongjiu Geng <gengdongjiu@...wei.com>
To:     Thomas Gleixner <tglx@...utronix.de>, Marc Zyngier <maz@...nel.org>
CC:     Jason Cooper <jason@...edaemon.net>, <linux-kernel@...r.kernel.org>
Subject: Re: Using fixed LPI number for some Device ID

On 2020/10/31 10:59, Thomas Gleixner wrote:
> On Sat, Oct 31 2020 at 10:19, Dongjiu Geng wrote:
>>  Hi Marc,
>>     Sorry to disturb you, Currently the LPI number is not fixed for
>>  the device. The LPI number is dynamically allocated start from 8092.
>>  For two OS which shares the ITS, One OS needs to configure the device
>>  interrupt required by another OS, and the other OS uses a fixed
>>  interrupt ID to respond the interrupt. Therefore, the LPI IRQ number
>>  of the device needed be fixed. I want to upstream this feature that
>>  allocate fixed LPI number for the device that is specified through
>>  the DTS. What is your meaning?  Thanks
> 
> What's the purpose of resending the same thing within less than 24
> hours? Do you really expect maintainers to be available 24/7 and being
  Sorry for the noise, Because Marc rarely uses the ARM email address,
  so I replace to use Marc's kernel.org address instead of ARM email address.



> able to respond within less than a day?
> 
> 
> .
>