drm/i915: evict VM instead of everything

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When reserving objects during execbuf, it is possible to come across an
object which will not fit given the current fragmentation of the address
space. We do not have any defragment in drm_mm, so the strategy is to
instead evict everything, and reallocate objects.

With the upcoming addition of multiple VMs, there is no point to evict
everything since doing so is overkill for the specific case mentioned
above.

Recommended-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: One additional s/evict_everything/evict_vm/ to update a
comment in the code.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Ben Widawsky 2013-09-11 14:57:50 -07:00 • committed by Daniel Vetter

parent 7b7961220f

commit 68c8c17f52

3 changed files with 25 additions and 3 deletions

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1

drivers/gpu/drm/i915/i915_drv.h

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19

drivers/gpu/drm/i915/i915_gem_evict.c

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8

drivers/gpu/drm/i915/i915_gem_execbuffer.c

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