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From: "Liu, Chuansheng" <>
To: "'' (" 
Cc: "" <>,
	"" <>,
	"Shi, Yang A" <>,
	"Liu, Chuansheng" <>
Subject: [Patch 0/1]drm_irq: Introducing the irq_thread support
Date: Wed, 5 Sep 2012 01:53:44 +0000	[thread overview]
Message-ID: <> (raw)

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.

So we have to introduce the irq thread in drm_irq, it can help us move some heavy work into irq thread
and other irq interrupts can be handled in time. Also the IRQF_ONESHOT is helpful for irq thread.

Include one patch:
[PATCH 01/1] drm_irq-Introducing-the-irq_thread-support

             reply	other threads:[~2012-09-05  1:53 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-05  1:53 Liu, Chuansheng [this message]
2012-09-05 12:49 ` [Patch 0/1]drm_irq: Introducing the irq_thread support Alan Cox
2012-09-06  0:42   ` Liu, Chuansheng
2012-09-06  7:39     ` Daniel Vetter
2012-09-05 13:27 ` Daniel Vetter
2012-09-05 15:12   ` Shi, Yang A
2012-09-05 15:32     ` Daniel Vetter
2012-09-06  0:54       ` Liu, Chuansheng
2012-09-05 15:47   ` Rob Clark
2012-09-06  0:48   ` Liu, Chuansheng
2012-10-11 12:07   ` Laurent Pinchart
2012-10-11 13:19     ` Rob Clark
2012-10-11 15:18       ` Daniel Vetter

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