[RFC PATCH 02/18] drm/ttm: Add per-BO eviction tracking

[Friedrich Vock]

Make each buffer object aware of whether it has been evicted or not.

Signed-off-by: Friedrich Vock <friedrich.vock at gmx.de>
---
 drivers/gpu/drm/ttm/ttm_bo.c |  1 +
 include/drm/ttm/ttm_bo.h     | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index edf10618fe2b2..3968b17453569 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -980,6 +980,7 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, struct ttm_buffer_object *bo,
 	bo->pin_count = 0;
 	bo->sg = sg;
 	bo->bulk_move = NULL;
+	bo->evicted_type = TTM_NUM_MEM_TYPES;
 	if (resv)
 		bo->base.resv = resv;
 	else
diff --git a/include/drm/ttm/ttm_bo.h b/include/drm/ttm/ttm_bo.h
index 0223a41a64b24..8a1a29c6fbc50 100644
--- a/include/drm/ttm/ttm_bo.h
+++ b/include/drm/ttm/ttm_bo.h
@@ -121,6 +121,17 @@ struct ttm_buffer_object {
 	unsigned priority;
 	unsigned pin_count;

+	/**
+	 * @evicted_type: Memory type this BO was evicted from, if any.
+	 * TTM_NUM_MEM_TYPES if this BO was not evicted.
+	 */
+	int evicted_type;
+	/**
+	 * @evicted: Entry in the evicted list for the resource manager
+	 * this BO was evicted from.
+	 */
+	struct list_head evicted;
+
 	/**
 	 * @delayed_delete: Work item used when we can't delete the BO
 	 * immediately
--
2.44.0