Re: [PATCH] drm: i915: ensure objects are allocated below 4GB onPAE

From: Peter Zijlstra
Date: Tue May 26 2009 - 15:21:50 EST

On Tue, 2009-05-26 at 12:27 -0400, Kyle McMartin wrote:
> From: Kyle McMartin <kyle@xxxxxxxxxx>
> 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

Why is this, is the gart not PAE friendly?

Seems to me its a grand way of promoting 64bit hard/soft-ware.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at