drm/i915: Use the MRU stack search after evicting

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When we evict from the GTT to make room for an object, the hole we
create is put onto the MRU stack inside the drm_mm range manager. On the
next search pass, we can speed up a PIN_HIGH allocation by referencing
that stack for the new hole.

v2: Pull together the 3 identical implements (ahem, a couple were
outdated) into a common routine for allocating a node and evicting as
necessary.
v3: Detect invalid calls to i915_gem_gtt_insert()
v4: kerneldoc

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170111112312.31493-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-01-11 11:23:10 +00:00

parent acf45d1105

commit e007b19d7b

4 changed files with 119 additions and 80 deletions

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33

drivers/gpu/drm/i915/gvt/aperture_gm.c

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121

drivers/gpu/drm/i915/i915_gem_gtt.c

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5

drivers/gpu/drm/i915/i915_gem_gtt.h

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40

drivers/gpu/drm/i915/i915_vma.c

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