1 files changed, 0 insertions, 190 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pool.c b/drivers/gpu/drm/i915/gt/intel_engine_pool.c
deleted file mode 100644
index 397186818305..000000000000
--- a/drivers/gpu/drm/i915/gt/intel_engine_pool.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * SPDX-License-Identifier: MIT
- *
- * Copyright © 2014-2018 Intel Corporation
- */
-
-#include "gem/i915_gem_object.h"
-
-#include "i915_drv.h"
-#include "intel_engine_pm.h"
-#include "intel_engine_pool.h"
-
-static struct intel_engine_cs *to_engine(struct intel_engine_pool *pool)
-{
-	return container_of(pool, struct intel_engine_cs, pool);
-}
-
-static struct list_head *
-bucket_for_size(struct intel_engine_pool *pool, size_t sz)
-{
-	int n;
-
-	/*
-	 * Compute a power-of-two bucket, but throw everything greater than
-	 * 16KiB into the same bucket: i.e. the buckets hold objects of
-	 * (1 page, 2 pages, 4 pages, 8+ pages).
-	 */
-	n = fls(sz >> PAGE_SHIFT) - 1;
-	if (n >= ARRAY_SIZE(pool->cache_list))
-		n = ARRAY_SIZE(pool->cache_list) - 1;
-
-	return &pool->cache_list[n];
-}
-
-static void node_free(struct intel_engine_pool_node *node)
-{
-	i915_gem_object_put(node->obj);
-	i915_active_fini(&node->active);
-	kfree(node);
-}
-
-static int pool_active(struct i915_active *ref)
-{
-	struct intel_engine_pool_node *node =
-		container_of(ref, typeof(*node), active);
-	struct dma_resv *resv = node->obj->base.resv;
-	int err;
-
-	if (dma_resv_trylock(resv)) {
-		dma_resv_add_excl_fence(resv, NULL);
-		dma_resv_unlock(resv);
-	}
-
-	err = i915_gem_object_pin_pages(node->obj);
-	if (err)
-		return err;
-
-	/* Hide this pinned object from the shrinker until retired */
-	i915_gem_object_make_unshrinkable(node->obj);
-
-	return 0;
-}
-
-__i915_active_call
-static void pool_retire(struct i915_active *ref)
-{
-	struct intel_engine_pool_node *node =
-		container_of(ref, typeof(*node), active);
-	struct intel_engine_pool *pool = node->pool;
-	struct list_head *list = bucket_for_size(pool, node->obj->base.size);
-	unsigned long flags;
-
-	GEM_BUG_ON(!intel_engine_pm_is_awake(to_engine(pool)));
-
-	i915_gem_object_unpin_pages(node->obj);
-
-	/* Return this object to the shrinker pool */
-	i915_gem_object_make_purgeable(node->obj);
-
-	spin_lock_irqsave(&pool->lock, flags);
-	list_add(&node->link, list);
-	spin_unlock_irqrestore(&pool->lock, flags);
-}
-
-static struct intel_engine_pool_node *
-node_create(struct intel_engine_pool *pool, size_t sz)
-{
-	struct intel_engine_cs *engine = to_engine(pool);
-	struct intel_engine_pool_node *node;
-	struct drm_i915_gem_object *obj;
-
-	node = kmalloc(sizeof(*node),
-		       GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
-	if (!node)
-		return ERR_PTR(-ENOMEM);
-
-	node->pool = pool;
-	i915_active_init(&node->active, pool_active, pool_retire);
-
-	obj = i915_gem_object_create_internal(engine->i915, sz);
-	if (IS_ERR(obj)) {
-		i915_active_fini(&node->active);
-		kfree(node);
-		return ERR_CAST(obj);
-	}
-
-	i915_gem_object_set_readonly(obj);
-
-	node->obj = obj;
-	return node;
-}
-
-static struct intel_engine_pool *lookup_pool(struct intel_engine_cs *engine)
-{
-	if (intel_engine_is_virtual(engine))
-		engine = intel_virtual_engine_get_sibling(engine, 0);
-
-	GEM_BUG_ON(!engine);
-	return &engine->pool;
-}
-
-struct intel_engine_pool_node *
-intel_engine_get_pool(struct intel_engine_cs *engine, size_t size)
-{
-	struct intel_engine_pool *pool = lookup_pool(engine);
-	struct intel_engine_pool_node *node;
-	struct list_head *list;
-	unsigned long flags;
-	int ret;
-
-	GEM_BUG_ON(!intel_engine_pm_is_awake(to_engine(pool)));
-
-	size = PAGE_ALIGN(size);
-	list = bucket_for_size(pool, size);
-
-	spin_lock_irqsave(&pool->lock, flags);
-	list_for_each_entry(node, list, link) {
-		if (node->obj->base.size < size)
-			continue;
-		list_del(&node->link);
-		break;
-	}
-	spin_unlock_irqrestore(&pool->lock, flags);
-
-	if (&node->link == list) {
-		node = node_create(pool, size);
-		if (IS_ERR(node))
-			return node;
-	}
-
-	ret = i915_active_acquire(&node->active);
-	if (ret) {
-		node_free(node);
-		return ERR_PTR(ret);
-	}
-
-	return node;
-}
-
-void intel_engine_pool_init(struct intel_engine_pool *pool)
-{
-	int n;
-
-	spin_lock_init(&pool->lock);
-	for (n = 0; n < ARRAY_SIZE(pool->cache_list); n++)
-		INIT_LIST_HEAD(&pool->cache_list[n]);
-}
-
-void intel_engine_pool_park(struct intel_engine_pool *pool)
-{
-	int n;
-
-	for (n = 0; n < ARRAY_SIZE(pool->cache_list); n++) {
-		struct list_head *list = &pool->cache_list[n];
-		struct intel_engine_pool_node *node, *nn;
-
-		list_for_each_entry_safe(node, nn, list, link)
-			node_free(node);
-
-		INIT_LIST_HEAD(list);
-	}
-}
-
-void intel_engine_pool_fini(struct intel_engine_pool *pool)
-{
-	int n;
-
-	for (n = 0; n < ARRAY_SIZE(pool->cache_list); n++)
-		GEM_BUG_ON(!list_empty(&pool->cache_list[n]));
-}