drm/i915: Document our internal limit on object size

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In many places, we try to count pages using a 32 bit integer. That
implies if we are asked to create an object larger than 43bits, we will
subtly crash much later. Catch this on the boundary, and add a warning
to remind ourselves later on our exabyte systems.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161018120251.25043-2-chris@chris-wilson.co.uk

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Chris Wilson 2016-10-18 13:02:49 +01:00

parent 3ef7f22893

commit b4bcbe2a90

2 changed files with 18 additions and 3 deletions

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2

drivers/gpu/drm/i915/i915_drv.h

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19

drivers/gpu/drm/i915/i915_gem.c

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