1 files changed, 0 insertions, 396 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c
deleted file mode 100644
index cd180c678c1..00000000000
--- a/drivers/gpu/drm/nouveau/nouveau_channel.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * Copyright 2005-2006 Stephane Marchesin
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include <drm/drmP.h>
-#include "nouveau_drv.h"
-#include <drm/nouveau_drm.h>
-#include "nouveau_dma.h"
-#include "nouveau_fifo.h"
-#include "nouveau_ramht.h"
-#include "nouveau_fence.h"
-#include "nouveau_software.h"
-
-static int
-nouveau_channel_pushbuf_init(struct nouveau_channel *chan)
-{
-	u32 mem = nouveau_vram_pushbuf ? TTM_PL_FLAG_VRAM : TTM_PL_FLAG_TT;
-	struct drm_device *dev = chan->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	int ret;
-
-	/* allocate buffer object */
-	ret = nouveau_bo_new(dev, 65536, 0, mem, 0, 0, NULL, &chan->pushbuf_bo);
-	if (ret)
-		goto out;
-
-	ret = nouveau_bo_pin(chan->pushbuf_bo, mem);
-	if (ret)
-		goto out;
-
-	ret = nouveau_bo_map(chan->pushbuf_bo);
-	if (ret)
-		goto out;
-
-	/* create DMA object covering the entire memtype where the push
-	 * buffer resides, userspace can submit its own push buffers from
-	 * anywhere within the same memtype.
-	 */
-	chan->pushbuf_base = chan->pushbuf_bo->bo.offset;
-	if (dev_priv->card_type >= NV_50) {
-		ret = nouveau_bo_vma_add(chan->pushbuf_bo, chan->vm,
-					 &chan->pushbuf_vma);
-		if (ret)
-			goto out;
-
-		if (dev_priv->card_type < NV_C0) {
-			ret = nouveau_gpuobj_dma_new(chan,
-						     NV_CLASS_DMA_IN_MEMORY, 0,
-						     (1ULL << 40),
-						     NV_MEM_ACCESS_RO,
-						     NV_MEM_TARGET_VM,
-						     &chan->pushbuf);
-		}
-		chan->pushbuf_base = chan->pushbuf_vma.offset;
-	} else
-	if (chan->pushbuf_bo->bo.mem.mem_type == TTM_PL_TT) {
-		ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, 0,
-					     dev_priv->gart_info.aper_size,
-					     NV_MEM_ACCESS_RO,
-					     NV_MEM_TARGET_GART,
-					     &chan->pushbuf);
-	} else
-	if (dev_priv->card_type != NV_04) {
-		ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, 0,
-					     dev_priv->fb_available_size,
-					     NV_MEM_ACCESS_RO,
-					     NV_MEM_TARGET_VRAM,
-					     &chan->pushbuf);
-	} else {
-		/* NV04 cmdbuf hack, from original ddx.. not sure of it's
-		 * exact reason for existing :)  PCI access to cmdbuf in
-		 * VRAM.
-		 */
-		ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
-					     pci_resource_start(dev->pdev, 1),
-					     dev_priv->fb_available_size,
-					     NV_MEM_ACCESS_RO,
-					     NV_MEM_TARGET_PCI,
-					     &chan->pushbuf);
-	}
-
-out:
-	if (ret) {
-		NV_ERROR(dev, "error initialising pushbuf: %d\n", ret);
-		nouveau_bo_vma_del(chan->pushbuf_bo, &chan->pushbuf_vma);
-		nouveau_gpuobj_ref(NULL, &chan->pushbuf);
-		if (chan->pushbuf_bo) {
-			nouveau_bo_unmap(chan->pushbuf_bo);
-			nouveau_bo_ref(NULL, &chan->pushbuf_bo);
-		}
-	}
-
-	return 0;
-}
-
-/* allocates and initializes a fifo for user space consumption */
-int
-nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
-		      struct drm_file *file_priv,
-		      uint32_t vram_handle, uint32_t gart_handle)
-{
-	struct nouveau_exec_engine *fence = nv_engine(dev, NVOBJ_ENGINE_FENCE);
-	struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
-	struct nouveau_channel *chan;
-	unsigned long flags;
-	int ret, i;
-
-	/* allocate and lock channel structure */
-	chan = kzalloc(sizeof(*chan), GFP_KERNEL);
-	if (!chan)
-		return -ENOMEM;
-	chan->dev = dev;
-	chan->file_priv = file_priv;
-	chan->vram_handle = vram_handle;
-	chan->gart_handle = gart_handle;
-
-	kref_init(&chan->ref);
-	atomic_set(&chan->users, 1);
-	mutex_init(&chan->mutex);
-	mutex_lock(&chan->mutex);
-
-	/* allocate hw channel id */
-	spin_lock_irqsave(&dev_priv->channels.lock, flags);
-	for (chan->id = 0; chan->id < pfifo->channels; chan->id++) {
-		if (!dev_priv->channels.ptr[chan->id]) {
-			nouveau_channel_ref(chan, &dev_priv->channels.ptr[chan->id]);
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
-
-	if (chan->id == pfifo->channels) {
-		mutex_unlock(&chan->mutex);
-		kfree(chan);
-		return -ENODEV;
-	}
-
-	NV_DEBUG(dev, "initialising channel %d\n", chan->id);
-
-	/* setup channel's memory and vm */
-	ret = nouveau_gpuobj_channel_init(chan, vram_handle, gart_handle);
-	if (ret) {
-		NV_ERROR(dev, "gpuobj %d\n", ret);
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	/* Allocate space for per-channel fixed notifier memory */
-	ret = nouveau_notifier_init_channel(chan);
-	if (ret) {
-		NV_ERROR(dev, "ntfy %d\n", ret);
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	/* Allocate DMA push buffer */
-	ret = nouveau_channel_pushbuf_init(chan);
-	if (ret) {
-		NV_ERROR(dev, "pushbuf %d\n", ret);
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	nouveau_dma_init(chan);
-	chan->user_put = 0x40;
-	chan->user_get = 0x44;
-	if (dev_priv->card_type >= NV_50)
-		chan->user_get_hi = 0x60;
-
-	/* create fifo context */
-	ret = pfifo->base.context_new(chan, NVOBJ_ENGINE_FIFO);
-	if (ret) {
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	/* Insert NOPs for NOUVEAU_DMA_SKIPS */
-	ret = RING_SPACE(chan, NOUVEAU_DMA_SKIPS);
-	if (ret) {
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
-		OUT_RING  (chan, 0x00000000);
-
-	ret = nouveau_gpuobj_gr_new(chan, NvSw, nouveau_software_class(dev));
-	if (ret) {
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	if (dev_priv->card_type < NV_C0) {
-		ret = RING_SPACE(chan, 2);
-		if (ret) {
-			nouveau_channel_put(&chan);
-			return ret;
-		}
-
-		BEGIN_NV04(chan, NvSubSw, NV01_SUBCHAN_OBJECT, 1);
-		OUT_RING  (chan, NvSw);
-		FIRE_RING (chan);
-	}
-
-	FIRE_RING(chan);
-
-	ret = fence->context_new(chan, NVOBJ_ENGINE_FENCE);
-	if (ret) {
-		nouveau_channel_put(&chan);
-		return ret;
-	}
-
-	nouveau_debugfs_channel_init(chan);
-
-	NV_DEBUG(dev, "channel %d initialised\n", chan->id);
-	if (fpriv) {
-		spin_lock(&fpriv->lock);
-		list_add(&chan->list, &fpriv->channels);
-		spin_unlock(&fpriv->lock);
-	}
-	*chan_ret = chan;
-	return 0;
-}
-
-struct nouveau_channel *
-nouveau_channel_get_unlocked(struct nouveau_channel *ref)
-{
-	struct nouveau_channel *chan = NULL;
-
-	if (likely(ref && atomic_inc_not_zero(&ref->users)))
-		nouveau_channel_ref(ref, &chan);
-
-	return chan;
-}
-
-struct nouveau_channel *
-nouveau_channel_get(struct drm_file *file_priv, int id)
-{
-	struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
-	struct nouveau_channel *chan;
-
-	spin_lock(&fpriv->lock);
-	list_for_each_entry(chan, &fpriv->channels, list) {
-		if (chan->id == id) {
-			chan = nouveau_channel_get_unlocked(chan);
-			spin_unlock(&fpriv->lock);
-			mutex_lock(&chan->mutex);
-			return chan;
-		}
-	}
-	spin_unlock(&fpriv->lock);
-
-	return ERR_PTR(-EINVAL);
-}
-
-void
-nouveau_channel_put_unlocked(struct nouveau_channel **pchan)
-{
-	struct nouveau_channel *chan = *pchan;
-	struct drm_device *dev = chan->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	unsigned long flags;
-	int i;
-
-	/* decrement the refcount, and we're done if there's still refs */
-	if (likely(!atomic_dec_and_test(&chan->users))) {
-		nouveau_channel_ref(NULL, pchan);
-		return;
-	}
-
-	/* no one wants the channel anymore */
-	NV_DEBUG(dev, "freeing channel %d\n", chan->id);
-	nouveau_debugfs_channel_fini(chan);
-
-	/* give it chance to idle */
-	nouveau_channel_idle(chan);
-
-	/* destroy the engine specific contexts */
-	for (i = NVOBJ_ENGINE_NR - 1; i >= 0; i--) {
-		if (chan->engctx[i])
-			dev_priv->eng[i]->context_del(chan, i);
-	}
-
-	/* aside from its resources, the channel should now be dead,
-	 * remove it from the channel list
-	 */
-	spin_lock_irqsave(&dev_priv->channels.lock, flags);
-	nouveau_channel_ref(NULL, &dev_priv->channels.ptr[chan->id]);
-	spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
-
-	/* destroy any resources the channel owned */
-	nouveau_gpuobj_ref(NULL, &chan->pushbuf);
-	if (chan->pushbuf_bo) {
-		nouveau_bo_vma_del(chan->pushbuf_bo, &chan->pushbuf_vma);
-		nouveau_bo_unmap(chan->pushbuf_bo);
-		nouveau_bo_unpin(chan->pushbuf_bo);
-		nouveau_bo_ref(NULL, &chan->pushbuf_bo);
-	}
-	nouveau_ramht_ref(NULL, &chan->ramht, chan);
-	nouveau_notifier_takedown_channel(chan);
-	nouveau_gpuobj_channel_takedown(chan);
-
-	nouveau_channel_ref(NULL, pchan);
-}
-
-void
-nouveau_channel_put(struct nouveau_channel **pchan)
-{
-	mutex_unlock(&(*pchan)->mutex);
-	nouveau_channel_put_unlocked(pchan);
-}
-
-static void
-nouveau_channel_del(struct kref *ref)
-{
-	struct nouveau_channel *chan =
-		container_of(ref, struct nouveau_channel, ref);
-
-	kfree(chan);
-}
-
-void
-nouveau_channel_ref(struct nouveau_channel *chan,
-		    struct nouveau_channel **pchan)
-{
-	if (chan)
-		kref_get(&chan->ref);
-
-	if (*pchan)
-		kref_put(&(*pchan)->ref, nouveau_channel_del);
-
-	*pchan = chan;
-}
-
-int
-nouveau_channel_idle(struct nouveau_channel *chan)
-{
-	struct drm_device *dev = chan->dev;
-	struct nouveau_fence *fence = NULL;
-	int ret;
-
-	ret = nouveau_fence_new(chan, &fence);
-	if (!ret) {
-		ret = nouveau_fence_wait(fence, false, false);
-		nouveau_fence_unref(&fence);
-	}
-
-	if (ret)
-		NV_ERROR(dev, "Failed to idle channel %d.\n", chan->id);
-	return ret;
-}
-
-/* cleans up all the fifos from file_priv */
-void
-nouveau_channel_cleanup(struct drm_device *dev, struct drm_file *file_priv)
-{
-	struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
-	struct nouveau_channel *chan;
-	int i;
-
-	if (!pfifo)
-		return;
-
-	NV_DEBUG(dev, "clearing FIFO enables from file_priv\n");
-	for (i = 0; i < pfifo->channels; i++) {
-		chan = nouveau_channel_get(file_priv, i);
-		if (IS_ERR(chan))
-			continue;
-
-		list_del(&chan->list);
-		atomic_dec(&chan->users);
-		nouveau_channel_put(&chan);
-	}
-}