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author | Ben Skeggs <bskeggs@redhat.com> | 2012-07-04 23:44:54 +1000 |
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committer | Ben Skeggs <bskeggs@redhat.com> | 2012-10-03 13:12:43 +1000 |
commit | 02a841d434513c7b3620250271c372fabce56de5 (patch) | |
tree | 464e7651bc65e8b100ad9eb949729da3d491591a /drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c | |
parent | 3a92d37e4099054fe187b485a9d27c439c10eca7 (diff) | |
download | op-kernel-dev-02a841d434513c7b3620250271c372fabce56de5.zip op-kernel-dev-02a841d434513c7b3620250271c372fabce56de5.tar.gz |
drm/nouveau: restructure source tree, split core from drm implementation
Future work will be headed in the way of separating the policy supplied by
the nouveau drm module from the mechanisms provided by the driver core.
There will be a couple of major classes (subdev, engine) of driver modules
that have clearly defined tasks, and the further directory structure change
is to reflect this.
No code changes here whatsoever, aside from fixing up a couple of include
file pathnames.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c new file mode 100644 index 0000000..f505d1e --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c @@ -0,0 +1,250 @@ +/* + * Copyright (C) 2012 Ben Skeggs. + * 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 THE COPYRIGHT OWNER(S) 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 <engine/fifo.h> +#include <core/ramht.h> +#include <subdev/vm.h> + +struct nv84_fifo_priv { + struct nouveau_fifo_priv base; + struct nouveau_gpuobj *playlist[2]; + int cur_playlist; +}; + +struct nv84_fifo_chan { + struct nouveau_fifo_chan base; + struct nouveau_gpuobj *ramfc; + struct nouveau_gpuobj *cache; +}; + +static int +nv84_fifo_context_new(struct nouveau_channel *chan, int engine) +{ + struct nv84_fifo_priv *priv = nv_engine(chan->dev, engine); + struct nv84_fifo_chan *fctx; + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + u64 ib_offset = chan->pushbuf_base + chan->dma.ib_base * 4; + u64 instance; + unsigned long flags; + int ret; + + fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL); + if (!fctx) + return -ENOMEM; + atomic_inc(&chan->vm->engref[engine]); + + chan->user = ioremap(pci_resource_start(dev->pdev, 0) + + NV50_USER(chan->id), PAGE_SIZE); + if (!chan->user) { + ret = -ENOMEM; + goto error; + } + + ret = nouveau_gpuobj_new(dev, chan, 256, 256, NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, &fctx->ramfc); + if (ret) + goto error; + + instance = fctx->ramfc->vinst >> 8; + + ret = nouveau_gpuobj_new(dev, chan, 4096, 1024, 0, &fctx->cache); + if (ret) + goto error; + + nv_wo32(fctx->ramfc, 0x3c, 0x403f6078); + nv_wo32(fctx->ramfc, 0x40, 0x00000000); + nv_wo32(fctx->ramfc, 0x44, 0x01003fff); + nv_wo32(fctx->ramfc, 0x48, chan->pushbuf->cinst >> 4); + nv_wo32(fctx->ramfc, 0x50, lower_32_bits(ib_offset)); + nv_wo32(fctx->ramfc, 0x54, upper_32_bits(ib_offset) | + drm_order(chan->dma.ib_max + 1) << 16); + nv_wo32(fctx->ramfc, 0x60, 0x7fffffff); + nv_wo32(fctx->ramfc, 0x78, 0x00000000); + nv_wo32(fctx->ramfc, 0x7c, 0x30000001); + nv_wo32(fctx->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) | + (4 << 24) /* SEARCH_FULL */ | + (chan->ramht->gpuobj->cinst >> 4)); + nv_wo32(fctx->ramfc, 0x88, fctx->cache->vinst >> 10); + nv_wo32(fctx->ramfc, 0x98, chan->ramin->vinst >> 12); + + nv_wo32(chan->ramin, 0x00, chan->id); + nv_wo32(chan->ramin, 0x04, fctx->ramfc->vinst >> 8); + + dev_priv->engine.instmem.flush(dev); + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + nv_wr32(dev, 0x002600 + (chan->id * 4), 0x80000000 | instance); + nv50_fifo_playlist_update(dev); + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); + +error: + if (ret) + priv->base.base.context_del(chan, engine); + return ret; +} + +static void +nv84_fifo_context_del(struct nouveau_channel *chan, int engine) +{ + struct nv84_fifo_chan *fctx = chan->engctx[engine]; + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + unsigned long flags; + u32 save; + + /* remove channel from playlist, will context switch if active */ + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + nv_mask(dev, 0x002600 + (chan->id * 4), 0x80000000, 0x00000000); + nv50_fifo_playlist_update(dev); + + save = nv_mask(dev, 0x002520, 0x0000003f, 0x15); + + /* tell any engines on this channel to unload their contexts */ + nv_wr32(dev, 0x0032fc, chan->ramin->vinst >> 12); + if (!nv_wait_ne(dev, 0x0032fc, 0xffffffff, 0xffffffff)) + NV_INFO(dev, "PFIFO: channel %d unload timeout\n", chan->id); + + nv_wr32(dev, 0x002520, save); + + nv_wr32(dev, 0x002600 + (chan->id * 4), 0x00000000); + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); + + /* clean up */ + if (chan->user) { + iounmap(chan->user); + chan->user = NULL; + } + + nouveau_gpuobj_ref(NULL, &fctx->ramfc); + nouveau_gpuobj_ref(NULL, &fctx->cache); + + atomic_dec(&chan->vm->engref[engine]); + chan->engctx[engine] = NULL; + kfree(fctx); +} + +static int +nv84_fifo_init(struct drm_device *dev, int engine) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv84_fifo_chan *fctx; + u32 instance; + int i; + + nv_mask(dev, 0x000200, 0x00000100, 0x00000000); + nv_mask(dev, 0x000200, 0x00000100, 0x00000100); + nv_wr32(dev, 0x00250c, 0x6f3cfc34); + nv_wr32(dev, 0x002044, 0x01003fff); + + nv_wr32(dev, 0x002100, 0xffffffff); + nv_wr32(dev, 0x002140, 0xffffffff); + + for (i = 0; i < 128; i++) { + struct nouveau_channel *chan = dev_priv->channels.ptr[i]; + if (chan && (fctx = chan->engctx[engine])) + instance = 0x80000000 | fctx->ramfc->vinst >> 8; + else + instance = 0x00000000; + nv_wr32(dev, 0x002600 + (i * 4), instance); + } + + nv50_fifo_playlist_update(dev); + + nv_wr32(dev, 0x003200, 1); + nv_wr32(dev, 0x003250, 1); + nv_wr32(dev, 0x002500, 1); + return 0; +} + +static int +nv84_fifo_fini(struct drm_device *dev, int engine, bool suspend) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv84_fifo_priv *priv = nv_engine(dev, engine); + int i; + u32 save; + + /* set playlist length to zero, fifo will unload context */ + nv_wr32(dev, 0x0032ec, 0); + + save = nv_mask(dev, 0x002520, 0x0000003f, 0x15); + + /* tell all connected engines to unload their contexts */ + for (i = 0; i < priv->base.channels; i++) { + struct nouveau_channel *chan = dev_priv->channels.ptr[i]; + if (chan) + nv_wr32(dev, 0x0032fc, chan->ramin->vinst >> 12); + if (!nv_wait_ne(dev, 0x0032fc, 0xffffffff, 0xffffffff)) { + NV_INFO(dev, "PFIFO: channel %d unload timeout\n", i); + return -EBUSY; + } + } + + nv_wr32(dev, 0x002520, save); + nv_wr32(dev, 0x002140, 0); + return 0; +} + +int +nv84_fifo_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv84_fifo_priv *priv; + int ret; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->base.base.destroy = nv50_fifo_destroy; + priv->base.base.init = nv84_fifo_init; + priv->base.base.fini = nv84_fifo_fini; + priv->base.base.context_new = nv84_fifo_context_new; + priv->base.base.context_del = nv84_fifo_context_del; + priv->base.base.tlb_flush = nv50_fifo_tlb_flush; + priv->base.channels = 127; + dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base; + + ret = nouveau_gpuobj_new(dev, NULL, priv->base.channels * 4, 0x1000, + NVOBJ_FLAG_ZERO_ALLOC, &priv->playlist[0]); + if (ret) + goto error; + + ret = nouveau_gpuobj_new(dev, NULL, priv->base.channels * 4, 0x1000, + NVOBJ_FLAG_ZERO_ALLOC, &priv->playlist[1]); + if (ret) + goto error; + + nouveau_irq_register(dev, 8, nv04_fifo_isr); +error: + if (ret) + priv->base.base.destroy(dev, NVOBJ_ENGINE_FIFO); + return ret; +} |