drm/i915: Remove bitmap tracking for used-ptes

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We only operate on known extents (both for alloc/clear) and so we can use
both the knowledge of the bind/unbind range along with the knowledge of
the existing pagetable to avoid having to allocate temporary and
auxiliary bitmaps.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99295
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170215084357.19977-12-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-02-15 08:43:46 +00:00

parent 16a011c8be

commit dd19674bac

3 changed files with 117 additions and 237 deletions

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332

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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19

drivers/gpu/drm/i915/i915_trace.h

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