[PATCH 3/8] drm/xe: Introduce helper to get tile from memory region

[Oak Zeng <oak.zeng@intel.com>]

Introduce a simple helper to retrieve tile from memory region

v1: move the function to xe_device.h (Matt)
    improve commit message, add kerneldoc (Thomas)

Signed-off-by: Oak Zeng <oak.zeng@intel.com>
---
 drivers/gpu/drm/xe/xe_device.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h
index d413bc2c6be5..3f74c460bb14 100644
--- a/drivers/gpu/drm/xe/xe_device.h
+++ b/drivers/gpu/drm/xe/xe_device.h
@@ -176,4 +176,13 @@ void xe_device_snapshot_print(struct xe_device *xe, struct drm_printer *p);
 u64 xe_device_canonicalize_addr(struct xe_device *xe, u64 address);
 u64 xe_device_uncanonicalize_addr(struct xe_device *xe, u64 address);
 
+/**
+ * xe_mem_region_to_tile() - retrieve tile from memory region
+ * @mr: the memory region we retrieve tile from
+ */
+static inline struct xe_tile *xe_mem_region_to_tile(struct xe_mem_region *mr)
+{
+	return container_of(mr, struct xe_tile, mem.vram);
+}
+
 #endif
-- 
2.26.3