minigbm/i915: Implement bo_create_with_modifiers
This implements the bo_create_with_modifiers driver functions, which
enables the gbm_bo_create_with_modifiers() entry point. This will
allow ozone to allocate with the modifiers it queries from KMS.
BUG=chromium:763760
TEST=Allocates Y-tiled scanout on SKL+
Change-Id: Id770e571a51aef4d753b30e12cd67d935c5228b7
Reviewed-on: https://chromium-review.googlesource.com/729279
Commit-Ready: Kristian H. Kristensen <hoegsberg@chromium.org>
Tested-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
diff --git a/helpers.h b/helpers.h
index 766b7d1..0e3fd14 100644
--- a/helpers.h
+++ b/helpers.h
@@ -33,4 +33,7 @@
uint64_t usage);
struct kms_item *drv_query_kms(struct driver *drv, uint32_t *num_items);
int drv_modify_linear_combinations(struct driver *drv);
+uint64_t drv_pick_modifier(const uint64_t *modifiers, uint32_t count,
+ const uint64_t *modifier_order, uint32_t order_count);
+
#endif