From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Anholt Subject: Re: [PATCH] drm/i915: Prevent use of pages >4GiB on 965G[M] Date: Wed, 20 Apr 2011 17:21:03 -0700 Message-ID: <87oc40o3o0.fsf@pollan.anholt.net> References: <1303058252-16961-1-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1030448073==" Return-path: In-Reply-To: <1303058252-16961-1-git-send-email-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Chris Wilson , intel-gfx@lists.freedesktop.org Cc: Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org --===============1030448073== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" --=-=-= On Sun, 17 Apr 2011 17:37:32 +0100, Chris Wilson wrote: > The 965G (Broadwater) and 965GM (Crestline) chipsets had many errata in > handling pages allocation above 4GiB. So we should be careful never to > allocate and attempt to pass such through to the GPU and so limit > ourselves to GFP_DMA32 on those chipsets. Unfortunate to see this -- were there more particular bugs in >4GB handling found, or is it just "I'm tired of worrying about it, let's avoid this class of problem"? I'm not saying "no" to this patch for either answer, just curious. --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk2veG8ACgkQHUdvYGzw6vcIeACeNsUcV+uDORQJl9HrIJXoX+kD ZikAoILyZ+Hqkz7ecnSH4TWnMSpjT945 =5t5s -----END PGP SIGNATURE----- --=-=-=-- --===============1030448073== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx --===============1030448073==--