diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_channel.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_channel.c | 490 |
1 files changed, 0 insertions, 490 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c deleted file mode 100644 index a018defb762..00000000000 --- a/drivers/gpu/drm/nouveau/nouveau_channel.c +++ /dev/null @@ -1,490 +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_ramht.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, &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 drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; - struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv); - struct nouveau_channel *chan; - unsigned long flags; - int ret; - - /* 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); - INIT_LIST_HEAD(&chan->nvsw.vbl_wait); - INIT_LIST_HEAD(&chan->nvsw.flip); - INIT_LIST_HEAD(&chan->fence.pending); - spin_lock_init(&chan->fence.lock); - - /* 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_pre_init(chan); - chan->user_put = 0x40; - chan->user_get = 0x44; - if (dev_priv->card_type >= NV_50) - chan->user_get_hi = 0x60; - - /* disable the fifo caches */ - pfifo->reassign(dev, false); - - /* Construct initial RAMFC for new channel */ - ret = pfifo->create_context(chan); - if (ret) { - nouveau_channel_put(&chan); - return ret; - } - - pfifo->reassign(dev, true); - - ret = nouveau_dma_init(chan); - if (!ret) - ret = nouveau_fence_channel_init(chan); - 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; - struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; - 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); - - /* ensure all outstanding fences are signaled. they should be if the - * above attempts at idling were OK, but if we failed this'll tell TTM - * we're done with the buffers. - */ - nouveau_fence_channel_fini(chan); - - /* boot it off the hardware */ - pfifo->reassign(dev, false); - - /* destroy the engine specific contexts */ - pfifo->destroy_context(chan); - for (i = 0; i < NVOBJ_ENGINE_NR; i++) { - if (chan->engctx[i]) - dev_priv->eng[i]->context_del(chan, i); - } - - pfifo->reassign(dev, true); - - /* 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; -} - -void -nouveau_channel_idle(struct nouveau_channel *chan) -{ - struct drm_device *dev = chan->dev; - struct nouveau_fence *fence = NULL; - int ret; - - nouveau_fence_update(chan); - - if (chan->fence.sequence != chan->fence.sequence_ack) { - ret = nouveau_fence_new(chan, &fence, true); - 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); - } -} - -/* cleans up all the fifos from file_priv */ -void -nouveau_channel_cleanup(struct drm_device *dev, struct drm_file *file_priv) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_engine *engine = &dev_priv->engine; - struct nouveau_channel *chan; - int i; - - NV_DEBUG(dev, "clearing FIFO enables from file_priv\n"); - for (i = 0; i < engine->fifo.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); - } -} - - -/*********************************** - * ioctls wrapping the functions - ***********************************/ - -static int -nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct drm_nouveau_channel_alloc *init = data; - struct nouveau_channel *chan; - int ret; - - if (!dev_priv->eng[NVOBJ_ENGINE_GR]) - return -ENODEV; - - if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0) - return -EINVAL; - - ret = nouveau_channel_alloc(dev, &chan, file_priv, - init->fb_ctxdma_handle, - init->tt_ctxdma_handle); - if (ret) - return ret; - init->channel = chan->id; - - if (nouveau_vram_pushbuf == 0) { - if (chan->dma.ib_max) - init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM | - NOUVEAU_GEM_DOMAIN_GART; - else if (chan->pushbuf_bo->bo.mem.mem_type == TTM_PL_VRAM) - init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM; - else - init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART; - } else { - init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM; - } - - if (dev_priv->card_type < NV_C0) { - init->subchan[0].handle = NvM2MF; - if (dev_priv->card_type < NV_50) - init->subchan[0].grclass = 0x0039; - else - init->subchan[0].grclass = 0x5039; - init->subchan[1].handle = NvSw; - init->subchan[1].grclass = NV_SW; - init->nr_subchan = 2; - } else { - init->subchan[0].handle = 0x9039; - init->subchan[0].grclass = 0x9039; - init->nr_subchan = 1; - } - - /* Named memory object area */ - ret = drm_gem_handle_create(file_priv, chan->notifier_bo->gem, - &init->notifier_handle); - - if (ret == 0) - atomic_inc(&chan->users); /* userspace reference */ - nouveau_channel_put(&chan); - return ret; -} - -static int -nouveau_ioctl_fifo_free(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_nouveau_channel_free *req = data; - struct nouveau_channel *chan; - - chan = nouveau_channel_get(file_priv, req->channel); - if (IS_ERR(chan)) - return PTR_ERR(chan); - - list_del(&chan->list); - atomic_dec(&chan->users); - nouveau_channel_put(&chan); - return 0; -} - -/*********************************** - * finally, the ioctl table - ***********************************/ - -struct drm_ioctl_desc nouveau_ioctls[] = { - DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_ioctl_fifo_alloc, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_ioctl_fifo_free, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_ioctl_notifier_alloc, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH), - DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH), -}; - -int nouveau_max_ioctl = DRM_ARRAY_SIZE(nouveau_ioctls); |