Revert "drm/i915: Do not allow buffers at offset 0"

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This reverts commit 4fe9adbc36.

The patch completely lacks a detailed explanation of what exactly
blows up and how, so is insufficiently justified as a band-aid.

Otoh the justification as a safety measure against userspace botching
up relocations is also fairly weak: If we want real project we need to
at least make the gab big enough that the gpu doesn't scribble over
more important stuff. With 4k screens that would be 32MB.

Also I think this would be much better in conjunction with a (debug)
switch to disable our use of the scratch page.

Hence revert this.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Daniel Vetter 2013-12-18 16:40:38 +01:00

parent 7c9c4b8f5d

commit bfca05275a

1 changed files with 1 additions and 3 deletions

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drivers/gpu/drm/i915/i915_gem.c

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