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Commit 9e53d9be authored by Chris Wilson's avatar Chris Wilson
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drm/i915: Disallow direct CPU access to stolen pages for relocations 



As we cannot access the backing pages behind stolen objects, we should
not attempt to do so for relocations.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-15-chris@chris-wilson.co.uk
parent e8cb909a

drivers/gpu/drm/i915/i915_gem_execbuffer.c

+3 −0
Original line number Diff line number Diff line
@@ -283,6 +283,9 @@ static void eb_destroy(struct eb_vmas *eb) 


static inline int use_cpu_reloc(struct drm_i915_gem_object *obj)

{

	if (!i915_gem_object_has_struct_page(obj))

		return false;



	if (DBG_USE_CPU_RELOC)

		return DBG_USE_CPU_RELOC > 0;