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From: Suresh Siddha <suresh.b.siddha@intel.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
	Eric Anholt <eric@anholt.net>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: PAGE_CACHE_WC strikes again
Date: Tue, 31 Mar 2009 17:30:24 -0800	[thread overview]
Message-ID: <1238549424.27006.7757.camel@localhost.localdomain> (raw)
In-Reply-To: <20090331181251.46cf95b1@hobbes>

On Tue, 2009-03-31 at 18:12 -0700, Jesse Barnes wrote:
> Right, the drm driver code went in before we had pgprot_writecombine.
> Now that it's available we should definitely use it.  I'm not sure
> about the set_memory_* routines though; we create io mappings in
> i915_dma.c at init time, and I thought we took care of things in
> i915_gem.c but we may need updates there.

Jesse, yes i915_gem.c seems to be doing the right thing.

What about various fault handlers in drm_vm.c like drm_do_vm_shm_fault()
etc. None of these fault handlers require special attributes like wc/uc
etc?

thanks,
suresh


  reply	other threads:[~2009-04-01  1:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-01  0:10 Eric Anholt
2009-04-01  0:14 ` Jesse Barnes
2009-04-01  0:29   ` Pallipadi, Venkatesh
2009-04-01  0:49     ` Jesse Barnes
2009-04-01  1:03     ` Suresh Siddha
2009-04-01  1:12       ` Jesse Barnes
2009-04-01  1:30         ` Suresh Siddha [this message]
2009-04-01  1:57           ` Jesse Barnes
2009-04-01  3:18             ` Dave Airlie
2009-04-01  3:17         ` Pallipadi, Venkatesh
2009-04-01  1:22       ` Jesse Barnes

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