drm/i915: Don't clobber the GTT when it's within stolen memory

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commit f1e1c2129b upstream.

On most gen2-4 platforms the GTT can be (or maybe always is?)
inside the stolen memory region. If that's the case, reduce the
size of the stolen memory appropriately to make make sure we
don't clobber the GTT.

v2: Deal with gen4 36 bit physical address

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80151
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Ville Syrjälä 2014-06-05 20:02:59 +03:00 • committed by Greg Kroah-Hartman

parent 7b4d4c016f

commit 65252fb777

2 changed files with 47 additions and 0 deletions

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44

drivers/gpu/drm/i915/i915_gem_stolen.c

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3

drivers/gpu/drm/i915/i915_reg.h

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