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From: Arkadiusz Miskiewicz <>
Subject: Re: [PATCH] drm/i915: Move non-phys cursors into the GTT
Date: Wed, 2 Jun 2010 22:05:42 +0200
Message-ID: <> (raw)
In-Reply-To: <>

On Wednesday 02 of June 2010, Chris Wilson wrote:
> Cursors need to be in the GTT domain when being accessed by the GPU.
> Previously this was a fortuitous byproduct of userspace using pwrite()
> to upload the image data into the cursor. The redundant clflush was
> removed in commit 9b8c4a and so the image was no longer being flushed
> out of the caches into main memory. One could also devise a scenario
> where the cursor was rendered by the GPU, prior to being attached as the
> cursor, resulting in similar corruption due to the missing MI_FLUSH.
> Fixes:
>   Bug 28335 - Cursor corruption caused by commit 9b8c4a0b21
> Signed-off-by: Chris Wilson <>

Tested-by: Arkadiusz Miśkiewicz <>

Arkadiusz Miśkiewicz        PLD/Linux Team
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Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-02  7:41 Chris Wilson
2010-06-02 20:05 ` Arkadiusz Miskiewicz [this message]

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