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From: Kenneth Graunke <kenneth@whitecape.org>
To: Ben Widawsky <ben@bwidawsk.net>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Don't override PPGTT cacheability on HSW
Date: Wed, 03 Apr 2013 12:17:28 -0700	[thread overview]
Message-ID: <515C8048.1080503@whitecape.org> (raw)
In-Reply-To: <1365012390-6465-1-git-send-email-ben@bwidawsk.net>

On 04/03/2013 11:06 AM, Ben Widawsky wrote:
> Apparently these ECOCHK bits changed on HSW and the behavior is not what
> we want. I've not been able to find VLV definition specifically so I'll
> assume it's the same as IVB.
>
> (Only compile tested)
>
> Reported-by: Kenneth Graunke <kenneth@whitecape.org>
> Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

The behavior isn't particularly bad, but the PTEs already take care of 
this for us, so it doesn't do anything.  That said, having random 
override bits set for no purpose is bad...we should just let the PTEs do 
their job.

Reviewed-and-tested-by: Kenneth Graunke <kenneth@whitecape.org>

Thanks Ben!

  reply	other threads:[~2013-04-03 19:16 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-03 18:06 [PATCH] drm/i915: Don't override PPGTT cacheability on HSW Ben Widawsky
2013-04-03 19:17 ` Kenneth Graunke [this message]
2013-04-03 19:33   ` Daniel Vetter
2013-04-03 20:08     ` Daniel Vetter
2013-04-03 20:41       ` Ben Widawsky
2013-04-03 23:30         ` Ben Widawsky
2013-04-04 11:31       ` Ville Syrjälä

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