Commit 9e53d9be authored by Chris Wilson's avatar Chris Wilson

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
...@@ -283,6 +283,9 @@ static void eb_destroy(struct eb_vmas *eb) ...@@ -283,6 +283,9 @@ static void eb_destroy(struct eb_vmas *eb)
static inline int use_cpu_reloc(struct drm_i915_gem_object *obj) 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) if (DBG_USE_CPU_RELOC)
return DBG_USE_CPU_RELOC > 0; return DBG_USE_CPU_RELOC > 0;
......
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