[PATCH V18 03/14] drm/xe: Extend BO purge to handle vram pages as well

[Tejas Upadhyay <tejas.upadhyay@intel.com>]

Recent driver update introduce support for purgeable buffer
objects (BOs), extending the API to include VRAM pages to
better manage memory pressure and enable memory offlining.

Reviewed-by: Arvind Yadav <arvind.yadav@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
---
 drivers/gpu/drm/xe/xe_bo.c | 5 +----
 drivers/gpu/drm/xe/xe_bo.h | 1 +
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index dde309821237..52f81e972ada 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -921,7 +921,7 @@ void xe_bo_set_purgeable_state(struct xe_bo *bo,
  *
  * Return: 0 on success, negative error code on failure
  */
-static int xe_ttm_bo_purge(struct ttm_buffer_object *ttm_bo, struct ttm_operation_ctx *ctx)
+int xe_ttm_bo_purge(struct ttm_buffer_object *ttm_bo, struct ttm_operation_ctx *ctx)
 {
 	struct xe_bo *bo = ttm_to_xe_bo(ttm_bo);
 	struct ttm_placement place = {};
@@ -929,9 +929,6 @@ static int xe_ttm_bo_purge(struct ttm_buffer_object *ttm_bo, struct ttm_operatio
 
 	xe_bo_assert_held(bo);
 
-	if (!ttm_bo->ttm)
-		return 0;
-
 	if (!xe_bo_madv_is_dontneed(bo))
 		return 0;
 
diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h
index e8081af5bfc1..90b15fff36c7 100644
--- a/drivers/gpu/drm/xe/xe_bo.h
+++ b/drivers/gpu/drm/xe/xe_bo.h
@@ -600,6 +600,7 @@ struct xe_bo_shrink_flags {
 long xe_bo_shrink(struct ttm_operation_ctx *ctx, struct ttm_buffer_object *bo,
 		  const struct xe_bo_shrink_flags flags,
 		  unsigned long *scanned);
+int xe_ttm_bo_purge(struct ttm_buffer_object *ttm_bo, struct ttm_operation_ctx *ctx);
 
 /**
  * xe_bo_is_mem_type - Whether the bo currently resides in the given
-- 
2.52.0