When a flat-CCS aware bo is evicted from lmem, its control surface will be
written out into smem. This will be done in the shape of a kernel-only bo
attached to the original bo.
Signed-off-by: Adrian Larumbe <adrian.larumbe@xxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_object_types.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
index 71e778ecaeb8..9f574e149c58 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
@@ -628,6 +628,16 @@ struct drm_i915_gem_object {
void *gvt_info;
};
+
+ /**
+ * This is set if the object is lmem-placeable, supports flat
+ * CCS and is compressed. In that case, a separate block of
+ * stolen lmem memory will contain its compression data.
+ */
+ struct {
+ struct drm_i915_gem_object *swap;
+ bool enabled:1;
+ } flat_css;
};
static inline struct drm_i915_gem_object *
--
2.34.1
