disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/arm/bifrost/mali_kbase_fence.c
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@@ -1,7 +1,7 @@
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 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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 /*
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  *
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- * (C) COPYRIGHT 2011-2021 ARM Limited. All rights reserved.
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+ * (C) COPYRIGHT 2011-2022 ARM Limited. All rights reserved.
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  *
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  * This program is free software and is provided to you under the terms of the
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  * GNU General Public License version 2 as published by the Free Software
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@@ -59,95 +59,3 @@
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 	return fence;
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 }
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-bool
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-kbase_fence_free_callbacks(struct kbase_jd_atom *katom)
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-{
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-	struct kbase_fence_cb *cb, *tmp;
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-	bool res = false;
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-
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-	lockdep_assert_held(&katom->kctx->jctx.lock);
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-
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-	/* Clean up and free callbacks. */
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-	list_for_each_entry_safe(cb, tmp, &katom->dma_fence.callbacks, node) {
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-		bool ret;
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-
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-		/* Cancel callbacks that hasn't been called yet. */
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-		ret = dma_fence_remove_callback(cb->fence, &cb->fence_cb);
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-		if (ret) {
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-			int ret;
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-
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-			/* Fence had not signaled, clean up after
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-			 * canceling.
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-			 */
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-			ret = atomic_dec_return(&katom->dma_fence.dep_count);
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-
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-			if (unlikely(ret == 0))
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-				res = true;
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-		}
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-
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-		/*
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-		 * Release the reference taken in
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-		 * kbase_fence_add_callback().
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-		 */
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-		dma_fence_put(cb->fence);
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-		list_del(&cb->node);
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-		kfree(cb);
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-	}
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-
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-	return res;
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-}
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-
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-#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
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-int
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-kbase_fence_add_callback(struct kbase_jd_atom *katom,
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-			 struct fence *fence,
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-			 fence_func_t callback)
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-#else
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-int
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-kbase_fence_add_callback(struct kbase_jd_atom *katom,
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-			 struct dma_fence *fence,
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-			 dma_fence_func_t callback)
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-#endif
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-{
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-	int err = 0;
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-	struct kbase_fence_cb *kbase_fence_cb;
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-
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-	if (!fence)
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-		return -EINVAL;
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-
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-	kbase_fence_cb = kmalloc(sizeof(*kbase_fence_cb), GFP_KERNEL);
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-	if (!kbase_fence_cb)
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-		return -ENOMEM;
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-
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-	kbase_fence_cb->fence = fence;
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-	kbase_fence_cb->katom = katom;
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-	INIT_LIST_HEAD(&kbase_fence_cb->node);
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-	atomic_inc(&katom->dma_fence.dep_count);
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-
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-	err = dma_fence_add_callback(fence, &kbase_fence_cb->fence_cb,
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-				     callback);
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-	if (err == -ENOENT) {
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-		/* Fence signaled, get the completion result */
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-		err = dma_fence_get_status(fence);
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-
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-		/* remap success completion to err code */
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-		if (err == 1)
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-			err = 0;
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-
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-		kfree(kbase_fence_cb);
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-		atomic_dec(&katom->dma_fence.dep_count);
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-	} else if (err) {
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-		kfree(kbase_fence_cb);
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-		atomic_dec(&katom->dma_fence.dep_count);
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-	} else {
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-		/*
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-		 * Get reference to fence that will be kept until callback gets
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-		 * cleaned up in kbase_fence_free_callbacks().
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-		 */
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-		dma_fence_get(fence);
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-		/* Add callback to katom's list of callbacks */
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-		list_add(&kbase_fence_cb->node, &katom->dma_fence.callbacks);
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-	}
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-
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-	return err;
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-}