linux-kernel - Re: [Patch 0/1]drm_irq: Introducing the irq

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Message-ID: <20120905134932.00707b98@pyramind.ukuu.org.uk>
Date:	Wed, 5 Sep 2012 13:49:32 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Liu, Chuansheng" <chuansheng.liu@...el.com>
Cc:	"'linux-kernel@...r.kernel.org' (linux-kernel@...r.kernel.org)" 
	<linux-kernel@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"airlied@...hat.com" <airlied@...hat.com>,
	"alexander.deucher@....com" <alexander.deucher@....com>,
	"Shi, Yang A" <yang.a.shi@...el.com>
Subject: Re: [Patch 0/1]drm_irq: Introducing the irq_thread support

On Wed, 5 Sep 2012 01:53:44 +0000
"Liu, Chuansheng" <chuansheng.liu@...el.com> wrote:

> This patch is for introducing the irq thread support in drm_irq.
> 
> Why we need irq thread in drm_irq code?
> In our GPU system, the gpu interrupt handler need some time even > 1ms to finish,
> in that case, the whole system will stay in irq disable status. One case is:
> when audio is playing, it sometimes effects the audio quality.

This possibly ought to be submitted in parallel with the code that uses it
so that the whole proposal can be evaluated as one thing ?

Alan
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