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From: Natalie Vock <nat@pixelcluster.dev>
To: "Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Jani Nikula" <jani.nikula@linux.intel.com>,
	"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
	"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
	"Tvrtko Ursulin" <tursulin@ursulin.net>,
	"Christian Koenig" <christian.koenig@amd.com>,
	"Huang Rui" <ray.huang@amd.com>,
	"Matthew Auld" <matthew.auld@intel.com>,
	"Matthew Brost" <matthew.brost@intel.com>,
	"Thomas Hellström" <thomas.hellstrom@linux.intel.com>,
	"Alex Deucher" <alexander.deucher@amd.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	 intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
	 amd-gfx@lists.freedesktop.org
Subject: [PATCH v2 03/10] drm/ttm: remove ttm_lru_walk_ops
Date: Mon, 06 Jul 2026 12:07:45 +0200	[thread overview]
Message-ID: <20260706-ttm_2_drm_exec-v2-3-4bf6bfc0d320@pixelcluster.dev> (raw)
In-Reply-To: <20260706-ttm_2_drm_exec-v2-0-4bf6bfc0d320@pixelcluster.dev>

It's just another layer of indirection.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Natalie Vock <nat@pixelcluster.dev>
---
 drivers/gpu/drm/ttm/ttm_bo.c      | 12 ++----------
 drivers/gpu/drm/ttm/ttm_bo_util.c |  2 +-
 include/drm/ttm/ttm_bo.h          | 34 ++++++++++++++--------------------
 3 files changed, 17 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 2b470c1746f60..1fb8c53da0362 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -545,10 +545,6 @@ static s64 ttm_bo_evict_cb(struct ttm_lru_walk *walk, struct ttm_buffer_object *
 	return lret;
 }
 
-static const struct ttm_lru_walk_ops ttm_evict_walk_ops = {
-	.process_bo = ttm_bo_evict_cb,
-};
-
 static int ttm_bo_evict_alloc(struct ttm_device *bdev,
 			      struct ttm_resource_manager *man,
 			      const struct ttm_place *place,
@@ -560,7 +556,7 @@ static int ttm_bo_evict_alloc(struct ttm_device *bdev,
 {
 	struct ttm_bo_evict_walk evict_walk = {
 		.walk = {
-			.ops = &ttm_evict_walk_ops,
+			.process_bo = ttm_bo_evict_cb,
 			.arg = {
 				.ctx = ctx,
 				.ticket = ticket,
@@ -1187,10 +1183,6 @@ ttm_bo_swapout_cb(struct ttm_lru_walk *walk, struct ttm_buffer_object *bo)
 	return ret;
 }
 
-const struct ttm_lru_walk_ops ttm_swap_ops = {
-	.process_bo = ttm_bo_swapout_cb,
-};
-
 /**
  * ttm_bo_swapout() - Swap out buffer objects on the LRU list to shmem.
  * @bdev: The ttm device.
@@ -1209,7 +1201,7 @@ s64 ttm_bo_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx,
 {
 	struct ttm_bo_swapout_walk swapout_walk = {
 		.walk = {
-			.ops = &ttm_swap_ops,
+			.process_bo = ttm_bo_swapout_cb,
 			.arg = {
 				.ctx = ctx,
 				.trylock_only = true,
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 7ed085adf1c9b..29f068944a972 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -919,7 +919,7 @@ s64 ttm_lru_walk_for_evict(struct ttm_lru_walk *walk, struct ttm_device *bdev,
 	s64 lret;
 
 	ttm_bo_lru_for_each_reserved_guarded(&cursor, man, &walk->arg, bo) {
-		lret = walk->ops->process_bo(walk, bo);
+		lret = walk->process_bo(walk, bo);
 		if (lret == -EBUSY || lret == -EALREADY)
 			lret = 0;
 		progress = (lret < 0) ? lret : progress + lret;
diff --git a/include/drm/ttm/ttm_bo.h b/include/drm/ttm/ttm_bo.h
index 1eae9eea5ff32..0fcd5082a7080 100644
--- a/include/drm/ttm/ttm_bo.h
+++ b/include/drm/ttm/ttm_bo.h
@@ -189,24 +189,6 @@ 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_arg - Common part for the variants of BO LRU walk.
  */
@@ -223,8 +205,20 @@ struct ttm_lru_walk_arg {
  * 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;
+	/**
+	 * 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);
+
 	/** @arg: Common bo LRU walk arguments. */
 	struct ttm_lru_walk_arg arg;
 };

-- 
2.55.0


  parent reply	other threads:[~2026-07-06 10:26 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-06 10:07 [PATCH v2 00/10] Use drm_exec to lock TTM buffers, respin Natalie Vock
2026-07-06 10:07 ` [PATCH v2 01/10] drm/exec: Add helper to bypass IGNORE_DUPLICATES flag Natalie Vock
2026-07-06 11:40   ` Christian König
2026-07-06 10:07 ` [PATCH v2 02/10] drm/ttm: replace TTMs refcount with the DRM refcount v4 Natalie Vock
2026-07-06 11:47   ` Christian König
2026-07-06 10:07 ` Natalie Vock [this message]
2026-07-06 10:07 ` [PATCH v2 04/10] drm/ttm: grab BO reference before locking it Natalie Vock
2026-07-06 10:07 ` [PATCH v2 05/10] drm/ttm: switch to ttm_bo_lru_for_each_reserved_guarded for swapout Natalie Vock
2026-07-06 10:07 ` [PATCH v2 06/10] drm/ttm: move zombie handling into ttm_bo_evict Natalie Vock
2026-07-06 10:07 ` [PATCH v2 07/10] drm/ttm: use ttm_bo_lru_for_each_reserved_guarded in evict_all Natalie Vock
2026-07-06 10:07 ` [PATCH v2 08/10] drm/xe: remove workaround for TTM internals Natalie Vock
2026-07-06 10:07 ` [PATCH v2 09/10] drm/ttm: support using drm_exec during eviction v4 Natalie Vock
2026-07-06 10:07 ` [PATCH v2 10/10] drm/amdgpu: use drm_exec during BO validation Natalie Vock

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