1 files changed, 0 insertions, 134 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma_snapshot.c b/drivers/gpu/drm/i915/i915_vma_snapshot.c
deleted file mode 100644
index 2949ceea9884..000000000000
--- a/drivers/gpu/drm/i915/i915_vma_snapshot.c
+++ /dev/null
@@ -1,134 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2021 Intel Corporation
- */
-
-#include "i915_vma_snapshot.h"
-#include "i915_vma_types.h"
-#include "i915_vma.h"
-
-/**
- * i915_vma_snapshot_init - Initialize a struct i915_vma_snapshot from
- * a struct i915_vma.
- * @vsnap: The i915_vma_snapshot to init.
- * @vma: A struct i915_vma used to initialize @vsnap.
- * @name: Name associated with the snapshot. The character pointer needs to
- * stay alive over the lifitime of the shapsot
- */
-void i915_vma_snapshot_init(struct i915_vma_snapshot *vsnap,
-			    struct i915_vma *vma,
-			    const char *name)
-{
-	if (!i915_vma_is_pinned(vma))
-		assert_object_held(vma->obj);
-
-	vsnap->name = name;
-	vsnap->size = vma->size;
-	vsnap->obj_size = vma->obj->base.size;
-	vsnap->gtt_offset = vma->node.start;
-	vsnap->gtt_size = vma->node.size;
-	vsnap->page_sizes = vma->page_sizes.gtt;
-	vsnap->pages = vma->pages;
-	vsnap->pages_rsgt = NULL;
-	vsnap->mr = NULL;
-	if (vma->obj->mm.rsgt)
-		vsnap->pages_rsgt = i915_refct_sgt_get(vma->obj->mm.rsgt);
-	vsnap->mr = vma->obj->mm.region;
-	kref_init(&vsnap->kref);
-	vsnap->vma_resource = &vma->active;
-	vsnap->onstack = false;
-	vsnap->present = true;
-}
-
-/**
- * i915_vma_snapshot_init_onstack - Initialize a struct i915_vma_snapshot from
- * a struct i915_vma, but avoid kfreeing it on last put.
- * @vsnap: The i915_vma_snapshot to init.
- * @vma: A struct i915_vma used to initialize @vsnap.
- * @name: Name associated with the snapshot. The character pointer needs to
- * stay alive over the lifitime of the shapsot
- */
-void i915_vma_snapshot_init_onstack(struct i915_vma_snapshot *vsnap,
-				    struct i915_vma *vma,
-				    const char *name)
-{
-	i915_vma_snapshot_init(vsnap, vma, name);
-	vsnap->onstack = true;
-}
-
-static void vma_snapshot_release(struct kref *ref)
-{
-	struct i915_vma_snapshot *vsnap =
-		container_of(ref, typeof(*vsnap), kref);
-
-	vsnap->present = false;
-	if (vsnap->pages_rsgt)
-		i915_refct_sgt_put(vsnap->pages_rsgt);
-	if (!vsnap->onstack)
-		kfree(vsnap);
-}
-
-/**
- * i915_vma_snapshot_put - Put an i915_vma_snapshot pointer reference
- * @vsnap: The pointer reference
- */
-void i915_vma_snapshot_put(struct i915_vma_snapshot *vsnap)
-{
-	kref_put(&vsnap->kref, vma_snapshot_release);
-}
-
-/**
- * i915_vma_snapshot_put_onstack - Put an onstcak i915_vma_snapshot pointer
- * reference and varify that the structure is released
- * @vsnap: The pointer reference
- *
- * This function is intended to be paired with a i915_vma_init_onstack()
- * and should be called before exiting the scope that declared or
- * freeing the structure that embedded @vsnap to verify that all references
- * have been released.
- */
-void i915_vma_snapshot_put_onstack(struct i915_vma_snapshot *vsnap)
-{
-	if (!kref_put(&vsnap->kref, vma_snapshot_release))
-		GEM_BUG_ON(1);
-}
-
-/**
- * i915_vma_snapshot_resource_pin - Temporarily block the memory the
- * vma snapshot is pointing to from being released.
- * @vsnap: The vma snapshot.
- * @lockdep_cookie: Pointer to bool needed for lockdep support. This needs
- * to be passed to the paired i915_vma_snapshot_resource_unpin.
- *
- * This function will temporarily try to hold up a fence or similar structure
- * and will therefore enter a fence signaling critical section.
- *
- * Return: true if we succeeded in blocking the memory from being released,
- * false otherwise.
- */
-bool i915_vma_snapshot_resource_pin(struct i915_vma_snapshot *vsnap,
-				    bool *lockdep_cookie)
-{
-	bool pinned = i915_active_acquire_if_busy(vsnap->vma_resource);
-
-	if (pinned)
-		*lockdep_cookie = dma_fence_begin_signalling();
-
-	return pinned;
-}
-
-/**
- * i915_vma_snapshot_resource_unpin - Unblock vma snapshot memory from
- * being released.
- * @vsnap: The vma snapshot.
- * @lockdep_cookie: Cookie returned from matching i915_vma_resource_pin().
- *
- * Might leave a fence signalling critical section and signal a fence.
- */
-void i915_vma_snapshot_resource_unpin(struct i915_vma_snapshot *vsnap,
-				      bool lockdep_cookie)
-{
-	dma_fence_end_signalling(lockdep_cookie);
-
-	return i915_active_release(vsnap->vma_resource);
-}