/* * Copyright 2012 Red Hat Inc. * * 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 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 HOLDER(S) OR AUTHOR(S) 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. * * Authors: Ben Skeggs */ #include "drmP.h" #include "nouveau_drv.h" #include "nouveau_dma.h" #include "nouveau_fifo.h" #include "nouveau_ramht.h" #include "nouveau_fence.h" struct nvc0_fence_priv { struct nouveau_fence_priv base; struct nouveau_bo *bo; u32 *suspend; }; struct nvc0_fence_chan { struct nouveau_fence_chan base; struct nouveau_vma vma; }; static int nvc0_fence_emit(struct nouveau_fence *fence) { struct nouveau_channel *chan = fence->channel; struct nvc0_fence_chan *fctx = chan->engctx[NVOBJ_ENGINE_FENCE]; u64 addr = fctx->vma.offset + chan->id * 16; int ret; ret = RING_SPACE(chan, 5); if (ret == 0) { BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); OUT_RING (chan, upper_32_bits(addr)); OUT_RING (chan, lower_32_bits(addr)); OUT_RING (chan, fence->sequence); OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); FIRE_RING (chan); } return ret; } static int nvc0_fence_sync(struct nouveau_fence *fence, struct nouveau_channel *prev, struct nouveau_channel *chan) { struct nvc0_fence_chan *fctx = chan->engctx[NVOBJ_ENGINE_FENCE]; u64 addr = fctx->vma.offset + prev->id * 16; int ret; ret = RING_SPACE(chan, 5); if (ret == 0) { BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); OUT_RING (chan, upper_32_bits(addr)); OUT_RING (chan, lower_32_bits(addr)); OUT_RING (chan, fence->sequence); OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); FIRE_RING (chan); } return ret; } static u32 nvc0_fence_read(struct nouveau_channel *chan) { struct nvc0_fence_priv *priv = nv_engine(chan->dev, NVOBJ_ENGINE_FENCE); return nouveau_bo_rd32(priv->bo, chan->id * 16/4); } static void nvc0_fence_context_del(struct nouveau_channel *chan, int engine) { struct nvc0_fence_priv *priv = nv_engine(chan->dev, engine); struct nvc0_fence_chan *fctx = chan->engctx[engine]; nouveau_bo_vma_del(priv->bo, &fctx->vma); nouveau_fence_context_del(&fctx->base); chan->engctx[engine] = NULL; kfree(fctx); } static int nvc0_fence_context_new(struct nouveau_channel *chan, int engine) { struct nvc0_fence_priv *priv = nv_engine(chan->dev, engine); struct nvc0_fence_chan *fctx; int ret; fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL); if (!fctx) return -ENOMEM; nouveau_fence_context_new(&fctx->base); ret = nouveau_bo_vma_add(priv->bo, chan->vm, &fctx->vma); if (ret) nvc0_fence_context_del(chan, engine); nouveau_bo_wr32(priv->bo, chan->id * 16/4, 0x00000000); return ret; } static int nvc0_fence_fini(struct drm_device *dev, int engine, bool suspend) { struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); struct nvc0_fence_priv *priv = nv_engine(dev, engine); int i; if (suspend) { priv->suspend = vmalloc(pfifo->channels * sizeof(u32)); if (!priv->suspend) return -ENOMEM; for (i = 0; i < pfifo->channels; i++) priv->suspend[i] = nouveau_bo_rd32(priv->bo, i); } return 0; } static int nvc0_fence_init(struct drm_device *dev, int engine) { struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); struct nvc0_fence_priv *priv = nv_engine(dev, engine); int i; if (priv->suspend) { for (i = 0; i < pfifo->channels; i++) nouveau_bo_wr32(priv->bo, i, priv->suspend[i]); vfree(priv->suspend); priv->suspend = NULL; } return 0; } static void nvc0_fence_destroy(struct drm_device *dev, int engine) { struct drm_nouveau_private *dev_priv = dev->dev_private; struct nvc0_fence_priv *priv = nv_engine(dev, engine); nouveau_bo_unmap(priv->bo); nouveau_bo_ref(NULL, &priv->bo); dev_priv->eng[engine] = NULL; kfree(priv); } int nvc0_fence_create(struct drm_device *dev) { struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); struct drm_nouveau_private *dev_priv = dev->dev_private; struct nvc0_fence_priv *priv; int ret; priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->base.engine.destroy = nvc0_fence_destroy; priv->base.engine.init = nvc0_fence_init; priv->base.engine.fini = nvc0_fence_fini; priv->base.engine.context_new = nvc0_fence_context_new; priv->base.engine.context_del = nvc0_fence_context_del; priv->base.emit = nvc0_fence_emit; priv->base.sync = nvc0_fence_sync; priv->base.read = nvc0_fence_read; dev_priv->eng[NVOBJ_ENGINE_FENCE] = &priv->base.engine; ret = nouveau_bo_new(dev, 16 * pfifo->channels, 0, TTM_PL_FLAG_VRAM, 0, 0, NULL, &priv->bo); if (ret == 0) { ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM); if (ret == 0) ret = nouveau_bo_map(priv->bo); if (ret) nouveau_bo_ref(NULL, &priv->bo); } if (ret) nvc0_fence_destroy(dev, NVOBJ_ENGINE_FENCE); return ret; }