1 files changed, 0 insertions, 160 deletions
diff --git a/drivers/gpu/drm/i915/i915_globals.c b/drivers/gpu/drm/i915/i915_globals.c
deleted file mode 100644
index 3acb0b6be284..000000000000
--- a/drivers/gpu/drm/i915/i915_globals.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * SPDX-License-Identifier: MIT
- *
- * Copyright © 2019 Intel Corporation
- */
-
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-
-#include "i915_active.h"
-#include "gem/i915_gem_context.h"
-#include "gem/i915_gem_object.h"
-#include "i915_globals.h"
-#include "i915_request.h"
-#include "i915_scheduler.h"
-#include "i915_vma.h"
-
-static LIST_HEAD(globals);
-
-static atomic_t active;
-static atomic_t epoch;
-static struct park_work {
-	struct delayed_work work;
-	struct rcu_head rcu;
-	unsigned long flags;
-#define PENDING 0
-	int epoch;
-} park;
-
-static void i915_globals_shrink(void)
-{
-	struct i915_global *global;
-
-	/*
-	 * kmem_cache_shrink() discards empty slabs and reorders partially
-	 * filled slabs to prioritise allocating from the mostly full slabs,
-	 * with the aim of reducing fragmentation.
-	 */
-	list_for_each_entry(global, &globals, link)
-		global->shrink();
-}
-
-static void __i915_globals_grace(struct rcu_head *rcu)
-{
-	/* Ratelimit parking as shrinking is quite slow */
-	schedule_delayed_work(&park.work, round_jiffies_up_relative(2 * HZ));
-}
-
-static void __i915_globals_queue_rcu(void)
-{
-	park.epoch = atomic_inc_return(&epoch);
-	if (!atomic_read(&active)) {
-		init_rcu_head(&park.rcu);
-		call_rcu(&park.rcu, __i915_globals_grace);
-	}
-}
-
-static void __i915_globals_park(struct work_struct *work)
-{
-	destroy_rcu_head(&park.rcu);
-
-	/* Confirm nothing woke up in the last grace period */
-	if (park.epoch != atomic_read(&epoch)) {
-		__i915_globals_queue_rcu();
-		return;
-	}
-
-	clear_bit(PENDING, &park.flags);
-	i915_globals_shrink();
-}
-
-void __init i915_global_register(struct i915_global *global)
-{
-	GEM_BUG_ON(!global->shrink);
-	GEM_BUG_ON(!global->exit);
-
-	list_add_tail(&global->link, &globals);
-}
-
-static void __i915_globals_cleanup(void)
-{
-	struct i915_global *global, *next;
-
-	list_for_each_entry_safe_reverse(global, next, &globals, link)
-		global->exit();
-}
-
-static __initconst int (* const initfn[])(void) = {
-	i915_global_active_init,
-	i915_global_context_init,
-	i915_global_gem_context_init,
-	i915_global_objects_init,
-	i915_global_request_init,
-	i915_global_scheduler_init,
-	i915_global_vma_init,
-};
-
-int __init i915_globals_init(void)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(initfn); i++) {
-		int err;
-
-		err = initfn[i]();
-		if (err) {
-			__i915_globals_cleanup();
-			return err;
-		}
-	}
-
-	INIT_DELAYED_WORK(&park.work, __i915_globals_park);
-	return 0;
-}
-
-void i915_globals_park(void)
-{
-	/*
-	 * Defer shrinking the global slab caches (and other work) until
-	 * after a RCU grace period has completed with no activity. This
-	 * is to try and reduce the latency impact on the consumers caused
-	 * by us shrinking the caches the same time as they are trying to
-	 * allocate, with the assumption being that if we idle long enough
-	 * for an RCU grace period to elapse since the last use, it is likely
-	 * to be longer until we need the caches again.
-	 */
-	if (!atomic_dec_and_test(&active))
-		return;
-
-	/* Queue cleanup after the next RCU grace period has freed slabs */
-	if (!test_and_set_bit(PENDING, &park.flags))
-		__i915_globals_queue_rcu();
-}
-
-void i915_globals_unpark(void)
-{
-	atomic_inc(&epoch);
-	atomic_inc(&active);
-}
-
-static void  __i915_globals_flush(void)
-{
-	atomic_inc(&active); /* skip shrinking */
-
-	rcu_barrier(); /* wait for the work to be queued */
-	flush_delayed_work(&park.work);
-
-	atomic_dec(&active);
-}
-
-void i915_globals_exit(void)
-{
-	GEM_BUG_ON(atomic_read(&active));
-
-	__i915_globals_flush();
-	__i915_globals_cleanup();
-
-	/* And ensure that our DESTROY_BY_RCU slabs are truly destroyed */
-	rcu_barrier();
-}