@@ -125,6 +125,8 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
if (obj->gtt_space != NULL)
seq_printf(m, " (gtt offset: %08x, size: %08x)",
obj->gtt_offset, (unsigned int)obj->gtt_space->size);
+ if (obj->stolen)
+ seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
if (obj->pin_mappable || obj->fault_mappable) {
char s[3], *t = s;
if (obj->pin_mappable)
@@ -913,6 +913,8 @@ struct drm_i915_gem_object {
/** Current space allocated to this object in the GTT, if any. */
struct drm_mm_node *gtt_space;
+ /** Stolen memory for this object, instead of being backed by shmem. */
+ struct drm_mm_node *stolen;
struct list_head gtt_list;
/** This object's place on the active/inactive lists */
In order to accommodate objects that are not backed by struct pages, but instead point into a contiguous region of stolen space, we need to make various changes to avoid dereferencing obj->pages or obj->base.filp. First introduce a marker for the stolen object, that specifies its offset into the stolen region and implies that it has no backing pages. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/i915_debugfs.c | 2 ++ drivers/gpu/drm/i915/i915_drv.h | 2 ++ 2 files changed, 4 insertions(+)