[PATCH 4/7] drm/ttm: move LRU walk defines into new internal header

[Christian König]

That is something drivers really shouldn't mess with.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c      |  1 +
 drivers/gpu/drm/ttm/ttm_bo_util.c |  2 +
 drivers/gpu/drm/ttm/ttm_bo_util.h | 67 +++++++++++++++++++++++++++++++
 include/drm/ttm/ttm_bo.h          | 35 ----------------
 4 files changed, 70 insertions(+), 35 deletions(-)
 create mode 100644 drivers/gpu/drm/ttm/ttm_bo_util.h

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 0131ec802066..41bee8696e69 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -45,6 +45,7 @@
 #include <linux/dma-resv.h>
 
 #include "ttm_module.h"
+#include "ttm_bo_util.h"
 
 static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
 					struct ttm_placement *placement)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 3c07f4712d5c..03e28e3d0d03 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -37,6 +37,8 @@
 
 #include <drm/drm_cache.h>
 
+#include "ttm_bo_util.h"
+
 struct ttm_transfer_obj {
 	struct ttm_buffer_object base;
 	struct ttm_buffer_object *bo;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.h b/drivers/gpu/drm/ttm/ttm_bo_util.h
new file mode 100644
index 000000000000..c19b50809208
--- /dev/null
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/**************************************************************************
+ * Copyright 2024 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+#ifndef _TTM_BO_UTIL_H_
+#define _TTM_BO_UTIL_H_
+
+struct ww_acquire_ctx;
+
+struct ttm_buffer_object;
+struct ttm_operation_ctx;
+struct ttm_lru_walk;
+
+/** struct ttm_lru_walk_ops - Operations for a LRU walk. */
+struct ttm_lru_walk_ops {
+	/**
+	 * process_bo - Process this bo.
+	 * @walk: struct ttm_lru_walk describing the walk.
+	 * @bo: A locked and referenced buffer object.
+	 *
+	 * Return: Negative error code on error, User-defined positive value
+	 * (typically, but not always, size of the processed bo) on success.
+	 * On success, the returned values are summed by the walk and the
+	 * walk exits when its target is met.
+	 * 0 also indicates success, -EBUSY means this bo was skipped.
+	 */
+	s64 (*process_bo)(struct ttm_lru_walk *walk,
+			  struct ttm_buffer_object *bo);
+};
+
+/**
+ * struct ttm_lru_walk - Structure describing a LRU walk.
+ */
+struct ttm_lru_walk {
+	/** @ops: Pointer to the ops structure. */
+	const struct ttm_lru_walk_ops *ops;
+	/** @ctx: Pointer to the struct ttm_operation_ctx. */
+	struct ttm_operation_ctx *ctx;
+	/** @ticket: The struct ww_acquire_ctx if any. */
+	struct ww_acquire_ctx *ticket;
+	/** @tryock_only: Only use trylock for locking. */
+	bool trylock_only;
+};
+
+s64 ttm_lru_walk_for_evict(struct ttm_lru_walk *walk, struct ttm_device *bdev,
+			   struct ttm_resource_manager *man, s64 target);
+
+#endif
diff --git a/include/drm/ttm/ttm_bo.h b/include/drm/ttm/ttm_bo.h
index d1a732d56259..5f7c967222a2 100644
--- a/include/drm/ttm/ttm_bo.h
+++ b/include/drm/ttm/ttm_bo.h
@@ -194,41 +194,6 @@ struct ttm_operation_ctx {
 	uint64_t bytes_moved;
 };
 
-struct ttm_lru_walk;
-
-/** struct ttm_lru_walk_ops - Operations for a LRU walk. */
-struct ttm_lru_walk_ops {
-	/**
-	 * process_bo - Process this bo.
-	 * @walk: struct ttm_lru_walk describing the walk.
-	 * @bo: A locked and referenced buffer object.
-	 *
-	 * Return: Negative error code on error, User-defined positive value
-	 * (typically, but not always, size of the processed bo) on success.
-	 * On success, the returned values are summed by the walk and the
-	 * walk exits when its target is met.
-	 * 0 also indicates success, -EBUSY means this bo was skipped.
-	 */
-	s64 (*process_bo)(struct ttm_lru_walk *walk, struct ttm_buffer_object *bo);
-};
-
-/**
- * struct ttm_lru_walk - Structure describing a LRU walk.
- */
-struct ttm_lru_walk {
-	/** @ops: Pointer to the ops structure. */
-	const struct ttm_lru_walk_ops *ops;
-	/** @ctx: Pointer to the struct ttm_operation_ctx. */
-	struct ttm_operation_ctx *ctx;
-	/** @ticket: The struct ww_acquire_ctx if any. */
-	struct ww_acquire_ctx *ticket;
-	/** @tryock_only: Only use trylock for locking. */
-	bool trylock_only;
-};
-
-s64 ttm_lru_walk_for_evict(struct ttm_lru_walk *walk, struct ttm_device *bdev,
-			   struct ttm_resource_manager *man, s64 target);
-
 /**
  * ttm_bo_get - reference a struct ttm_buffer_object
  *
-- 
2.34.1