[Intel-gfx] [PATCH 1/9] drm/i915: Allow use of get_dma_address for stolen backed objects

ankitprasad.r.sharma at intel.com ankitprasad.r.sharma at intel.com
Sun Dec 13 21:46:03 PST 2015

From: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>

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 at intel.com>
 drivers/gpu/drm/i915/i915_gem_stolen.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 598ed2f..5384767 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -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;
 	obj->stolen = stolen;

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