1 files changed, 0 insertions, 142 deletions
diff --git a/snd-alpx/core/generic/6.2/virt-dma.c b/snd-alpx/core/generic/6.2/virt-dma.c
deleted file mode 100644
index a6f4265..0000000
--- a/snd-alpx/core/generic/6.2/virt-dma.c
+++ /dev/null
@@ -1,142 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Virtual DMA channel support for DMAengine
- *
- * Copyright (C) 2012 Russell King
- */
-#include <linux/device.h>
-#include <linux/dmaengine.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-
-#include "virt-dma.h"
-
-static struct virt_dma_desc *to_virt_desc(struct dma_async_tx_descriptor *tx)
-{
-	return container_of(tx, struct virt_dma_desc, tx);
-}
-
-dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *tx)
-{
-	struct virt_dma_chan *vc = to_virt_chan(tx->chan);
-	struct virt_dma_desc *vd = to_virt_desc(tx);
-	unsigned long flags;
-	dma_cookie_t cookie;
-
-	spin_lock_irqsave(&vc->lock, flags);
-	cookie = dma_cookie_assign(tx);
-
-	list_move_tail(&vd->node, &vc->desc_submitted);
-	spin_unlock_irqrestore(&vc->lock, flags);
-
-	dev_dbg(vc->chan.device->dev, "vchan %p: txd %p[%x]: submitted\n",
-		vc, vd, cookie);
-
-	return cookie;
-}
-EXPORT_SYMBOL_GPL(vchan_tx_submit);
-
-/**
- * vchan_tx_desc_free - free a reusable descriptor
- * @tx: the transfer
- *
- * This function frees a previously allocated reusable descriptor. The only
- * other way is to clear the DMA_CTRL_REUSE flag and submit one last time the
- * transfer.
- *
- * Returns 0 upon success
- */
-int vchan_tx_desc_free(struct dma_async_tx_descriptor *tx)
-{
-	struct virt_dma_chan *vc = to_virt_chan(tx->chan);
-	struct virt_dma_desc *vd = to_virt_desc(tx);
-	unsigned long flags;
-
-	spin_lock_irqsave(&vc->lock, flags);
-	list_del(&vd->node);
-	spin_unlock_irqrestore(&vc->lock, flags);
-
-	dev_dbg(vc->chan.device->dev, "vchan %p: txd %p[%x]: freeing\n",
-		vc, vd, vd->tx.cookie);
-	vc->desc_free(vd);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(vchan_tx_desc_free);
-
-struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *vc,
-	dma_cookie_t cookie)
-{
-	struct virt_dma_desc *vd;
-
-	list_for_each_entry(vd, &vc->desc_issued, node)
-		if (vd->tx.cookie == cookie)
-			return vd;
-
-	return NULL;
-}
-EXPORT_SYMBOL_GPL(vchan_find_desc);
-
-/*
- * This tasklet handles the completion of a DMA descriptor by
- * calling its callback and freeing it.
- */
-static void vchan_complete(struct tasklet_struct *t)
-{
-	struct virt_dma_chan *vc = from_tasklet(vc, t, task);
-	struct virt_dma_desc *vd, *_vd;
-	struct dmaengine_desc_callback cb;
-	LIST_HEAD(head);
-
-	spin_lock_irq(&vc->lock);
-	list_splice_tail_init(&vc->desc_completed, &head);
-	vd = vc->cyclic;
-	if (vd) {
-		vc->cyclic = NULL;
-		dmaengine_desc_get_callback(&vd->tx, &cb);
-	} else {
-		memset(&cb, 0, sizeof(cb));
-	}
-	spin_unlock_irq(&vc->lock);
-
-	dmaengine_desc_callback_invoke(&cb, &vd->tx_result);
-
-	list_for_each_entry_safe(vd, _vd, &head, node) {
-		dmaengine_desc_get_callback(&vd->tx, &cb);
-
-		list_del(&vd->node);
-		dmaengine_desc_callback_invoke(&cb, &vd->tx_result);
-		vchan_vdesc_fini(vd);
-	}
-}
-
-void vchan_dma_desc_free_list(struct virt_dma_chan *vc, struct list_head *head)
-{
-	struct virt_dma_desc *vd, *_vd;
-
-	list_for_each_entry_safe(vd, _vd, head, node) {
-		list_del(&vd->node);
-		vchan_vdesc_fini(vd);
-	}
-}
-EXPORT_SYMBOL_GPL(vchan_dma_desc_free_list);
-
-void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev)
-{
-	dma_cookie_init(&vc->chan);
-
-	spin_lock_init(&vc->lock);
-	INIT_LIST_HEAD(&vc->desc_allocated);
-	INIT_LIST_HEAD(&vc->desc_submitted);
-	INIT_LIST_HEAD(&vc->desc_issued);
-	INIT_LIST_HEAD(&vc->desc_completed);
-	INIT_LIST_HEAD(&vc->desc_terminated);
-
-	tasklet_setup(&vc->task, vchan_complete);
-
-	vc->chan.device = dmadev;
-	list_add_tail(&vc->chan.device_node, &dmadev->channels);
-}
-EXPORT_SYMBOL_GPL(vchan_init);
-
-MODULE_AUTHOR("Russell King");
-MODULE_LICENSE("GPL");