drm/i915; Preallocate the lazy request

Browse source

It is possible for us to be forced to perform an allocation for the lazy
request whilst running the shrinker. This allocation may fail, leaving
us unable to reclaim any memory leading to premature OOM. A neat
solution to the problem is to preallocate the request at the same time
as acquiring the seqno for the ring transaction. This means that we can
report ENOMEM prior to touching the rings.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Chris Wilson 2013-09-04 10:45:52 +01:00 • committed by Daniel Vetter

parent 1823521d2b

commit 3c0e234c84

3 changed files with 15 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

drivers/gpu/drm/i915/i915_gem.c

View file

10

drivers/gpu/drm/i915/intel_ringbuffer.c

View file

1

drivers/gpu/drm/i915/intel_ringbuffer.h

View file