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drm/i915: Allow use of get_dma_address for stolen backed objects 

i915_gem_object_get_dma_address function is used to retrieve the dma address
of a particular page so as to map it in a given GTT entry for CPU access.
This function would be used for stolen backed objects also for tasks like
pwrite,  clearing of the pages etc. So the obj->get_page.sg needs to be
initialized for the stolen objects also.

Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450765253-32104-2-git-send-email-ankitprasad.r.sharma@intel.com
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ankitprasad Sharma 2015-12-22 11:50:44 +05:30 committed by Daniel Vetter
parent c5d46ee206
commit c5236470fe
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_gem_stolen.c
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@ -569,6 +569,9 @@ _i915_gem_object_create_stolen(struct drm_device *dev,
if (obj->pages == NULL)
goto cleanup;
obj->get_page.sg = obj->pages->sgl;
obj->get_page.last = 0;
i915_gem_object_pin_pages(obj);
obj->stolen = stolen;