diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 22:57:00 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 22:57:51 +0200 |
commit | c37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch) | |
tree | 7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /drivers/gpu/drm/nouveau/nouveau_channel.c | |
parent | e7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff) | |
parent | 8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff) |
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_channel.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_channel.c | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c deleted file mode 100644 index debd90225a8..00000000000 --- a/drivers/gpu/drm/nouveau/nouveau_channel.c +++ /dev/null @@ -1,397 +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 "drmP.h" -#include "drm.h" -#include "nouveau_drv.h" -#include "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); - } -} |