From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keith Packard Subject: Re: [patch] mm: pageable memory allocator (for DRM-GEM?) Date: Thu, 25 Sep 2008 07:38:07 -0700 Message-ID: <1222353487.4343.205.camel@koto.keithp.com> References: <20080923091017.GB29718@wotan.suse.de> <48D8C326.80909@tungstengraphics.com> <20080925001856.GB23494@wotan.suse.de> <48DB3B88.7080609@tungstengraphics.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-5ksctFAUSjiUwZz2PkgW" Return-path: In-Reply-To: <48DB3B88.7080609@tungstengraphics.com> Sender: linux-kernel-owner@vger.kernel.org To: Thomas =?ISO-8859-1?Q?Hellstr=F6m?= Cc: keithp@keithp.com, Nick Piggin , "eric@anholt.net" , "hugh@veritas.com" , "hch@infradead.org" , "airlied@linux.ie" , "jbarnes@virtuousgeek.org" , "dri-devel@lists.sourceforge.net" , Linux Memory Management List , Linux Kernel Mailing List List-Id: linux-mm.kvack.org --=-5ksctFAUSjiUwZz2PkgW Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 2008-09-25 at 00:19 -0700, Thomas Hellstr=C3=B6m wrote: > If data is > dirtied in VRAM or the page(s) got discarded > we need new pages and to set up a copy operation. Note that this can occur as a result of a suspend-to-memory transition at which point *all* of the objects in VRAM will need to be preserved in main memory, and so the pages aren't really 'freed', they just don't need to have valid contents, but the system should be aware that the space may be needed at some point in the future. --=20 keith.packard@intel.com --=-5ksctFAUSjiUwZz2PkgW Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iD8DBQBI26JPQp8BWwlsTdMRAsZQAJ9L293zEdR9IZafP1KaiS4g1c0LVACgiuAm MNdQDSJ3EIeR78OANbe2AV8= =Ph60 -----END PGP SIGNATURE----- --=-5ksctFAUSjiUwZz2PkgW--