drm/i915: Use page coloring to provide the guard page at the end of the GTT

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As we now mark the reserved hole (drm_mm.head_node) with the special
UNEVICTABLE color, we can use the page coloring to avoid prefetching of
the CS beyond the end of the GTT.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206084547.27921-3-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>

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This commit is contained in:

Chris Wilson 2017-02-06 08:45:47 +00:00

parent 47db922fa1

commit a6508ded2a

2 changed files with 20 additions and 9 deletions

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

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10

drivers/gpu/drm/i915/i915_gem_evict.c

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19

drivers/gpu/drm/i915/i915_gem_gtt.c

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