drm/i915: Only refcount ppgtt if it actually is one

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This essentially unbreaks non-ppgtt operation where we'd scribble over
random memory.

While at it give the vm_to_ppgtt function a proper prefix and make it
a bit more paranoid.

Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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This commit is contained in:

Daniel Vetter 2014-08-06 15:04:48 +02:00

parent 4d884705da

commit 841cd77375

3 changed files with 13 additions and 3 deletions

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10

drivers/gpu/drm/i915/i915_drv.h

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3

drivers/gpu/drm/i915/i915_gem.c

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3

drivers/gpu/drm/i915/i915_gem_gtt.c

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