Messages in this thread | | | Subject | Re: [PATCH] drm: i915: ensure objects are allocated below 4GB on PAE | From | Peter Zijlstra <> | Date | Tue, 26 May 2009 21:17:53 +0200 |
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On Tue, 2009-05-26 at 12:27 -0400, Kyle McMartin wrote: > From: Kyle McMartin <kyle@redhat.com> > > Ensure we allocate GEM objects below 4GB on PAE machines, otherwise > misery ensues. This patch is based on a patch found on dri-devel by > Shaohua Li, but Keith P. expressed reticence that the changes unfairly > penalized other hardware. > > (The mm/shmem.c hunk is necessary to ensure the DMA32 flag isn't used > by the slab allocator via radix_tree_preload, which will hit a > WARN_ON.)
Why is this, is the gart not PAE friendly?
Seems to me its a grand way of promoting 64bit hard/soft-ware.
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