Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Red Hat Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | * |
| 22 | * Authors: Ben Skeggs |
| 23 | */ |
| 24 | |
| 25 | #include "drmP.h" |
| 26 | #include "nouveau_drv.h" |
| 27 | #include "nouveau_dma.h" |
Ben Skeggs | 02a841d | 2012-07-04 23:44:54 +1000 | [diff] [blame^] | 28 | #include <engine/fifo.h> |
| 29 | #include <core/ramht.h> |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 30 | #include "nouveau_fence.h" |
| 31 | |
| 32 | struct nvc0_fence_priv { |
| 33 | struct nouveau_fence_priv base; |
| 34 | struct nouveau_bo *bo; |
Ben Skeggs | d6ba6d2 | 2012-09-28 11:50:29 +1000 | [diff] [blame] | 35 | u32 *suspend; |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 36 | }; |
| 37 | |
| 38 | struct nvc0_fence_chan { |
| 39 | struct nouveau_fence_chan base; |
| 40 | struct nouveau_vma vma; |
| 41 | }; |
| 42 | |
| 43 | static int |
| 44 | nvc0_fence_emit(struct nouveau_fence *fence) |
| 45 | { |
| 46 | struct nouveau_channel *chan = fence->channel; |
| 47 | struct nvc0_fence_chan *fctx = chan->engctx[NVOBJ_ENGINE_FENCE]; |
| 48 | u64 addr = fctx->vma.offset + chan->id * 16; |
| 49 | int ret; |
| 50 | |
| 51 | ret = RING_SPACE(chan, 5); |
| 52 | if (ret == 0) { |
| 53 | BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); |
| 54 | OUT_RING (chan, upper_32_bits(addr)); |
| 55 | OUT_RING (chan, lower_32_bits(addr)); |
| 56 | OUT_RING (chan, fence->sequence); |
| 57 | OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); |
| 58 | FIRE_RING (chan); |
| 59 | } |
| 60 | |
| 61 | return ret; |
| 62 | } |
| 63 | |
| 64 | static int |
Ben Skeggs | 906c033 | 2012-05-04 16:25:47 +1000 | [diff] [blame] | 65 | nvc0_fence_sync(struct nouveau_fence *fence, |
| 66 | struct nouveau_channel *prev, struct nouveau_channel *chan) |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 67 | { |
| 68 | struct nvc0_fence_chan *fctx = chan->engctx[NVOBJ_ENGINE_FENCE]; |
Ben Skeggs | 906c033 | 2012-05-04 16:25:47 +1000 | [diff] [blame] | 69 | u64 addr = fctx->vma.offset + prev->id * 16; |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 70 | int ret; |
| 71 | |
| 72 | ret = RING_SPACE(chan, 5); |
| 73 | if (ret == 0) { |
| 74 | BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); |
| 75 | OUT_RING (chan, upper_32_bits(addr)); |
| 76 | OUT_RING (chan, lower_32_bits(addr)); |
| 77 | OUT_RING (chan, fence->sequence); |
| 78 | OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | |
| 79 | NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); |
| 80 | FIRE_RING (chan); |
| 81 | } |
| 82 | |
| 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | static u32 |
| 87 | nvc0_fence_read(struct nouveau_channel *chan) |
| 88 | { |
| 89 | struct nvc0_fence_priv *priv = nv_engine(chan->dev, NVOBJ_ENGINE_FENCE); |
| 90 | return nouveau_bo_rd32(priv->bo, chan->id * 16/4); |
| 91 | } |
| 92 | |
| 93 | static void |
| 94 | nvc0_fence_context_del(struct nouveau_channel *chan, int engine) |
| 95 | { |
| 96 | struct nvc0_fence_priv *priv = nv_engine(chan->dev, engine); |
| 97 | struct nvc0_fence_chan *fctx = chan->engctx[engine]; |
| 98 | |
| 99 | nouveau_bo_vma_del(priv->bo, &fctx->vma); |
| 100 | nouveau_fence_context_del(&fctx->base); |
| 101 | chan->engctx[engine] = NULL; |
| 102 | kfree(fctx); |
| 103 | } |
| 104 | |
| 105 | static int |
| 106 | nvc0_fence_context_new(struct nouveau_channel *chan, int engine) |
| 107 | { |
| 108 | struct nvc0_fence_priv *priv = nv_engine(chan->dev, engine); |
| 109 | struct nvc0_fence_chan *fctx; |
| 110 | int ret; |
| 111 | |
| 112 | fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL); |
| 113 | if (!fctx) |
| 114 | return -ENOMEM; |
| 115 | |
| 116 | nouveau_fence_context_new(&fctx->base); |
| 117 | |
| 118 | ret = nouveau_bo_vma_add(priv->bo, chan->vm, &fctx->vma); |
| 119 | if (ret) |
| 120 | nvc0_fence_context_del(chan, engine); |
| 121 | |
| 122 | nouveau_bo_wr32(priv->bo, chan->id * 16/4, 0x00000000); |
| 123 | return ret; |
| 124 | } |
| 125 | |
| 126 | static int |
| 127 | nvc0_fence_fini(struct drm_device *dev, int engine, bool suspend) |
| 128 | { |
Ben Skeggs | d6ba6d2 | 2012-09-28 11:50:29 +1000 | [diff] [blame] | 129 | struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); |
| 130 | struct nvc0_fence_priv *priv = nv_engine(dev, engine); |
| 131 | int i; |
| 132 | |
| 133 | if (suspend) { |
| 134 | priv->suspend = vmalloc(pfifo->channels * sizeof(u32)); |
| 135 | if (!priv->suspend) |
| 136 | return -ENOMEM; |
| 137 | |
| 138 | for (i = 0; i < pfifo->channels; i++) |
| 139 | priv->suspend[i] = nouveau_bo_rd32(priv->bo, i); |
| 140 | } |
| 141 | |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 142 | return 0; |
| 143 | } |
| 144 | |
| 145 | static int |
| 146 | nvc0_fence_init(struct drm_device *dev, int engine) |
| 147 | { |
Ben Skeggs | d6ba6d2 | 2012-09-28 11:50:29 +1000 | [diff] [blame] | 148 | struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); |
| 149 | struct nvc0_fence_priv *priv = nv_engine(dev, engine); |
| 150 | int i; |
| 151 | |
| 152 | if (priv->suspend) { |
| 153 | for (i = 0; i < pfifo->channels; i++) |
| 154 | nouveau_bo_wr32(priv->bo, i, priv->suspend[i]); |
| 155 | vfree(priv->suspend); |
| 156 | priv->suspend = NULL; |
| 157 | } |
| 158 | |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | static void |
| 163 | nvc0_fence_destroy(struct drm_device *dev, int engine) |
| 164 | { |
| 165 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 166 | struct nvc0_fence_priv *priv = nv_engine(dev, engine); |
| 167 | |
| 168 | nouveau_bo_unmap(priv->bo); |
| 169 | nouveau_bo_ref(NULL, &priv->bo); |
| 170 | dev_priv->eng[engine] = NULL; |
| 171 | kfree(priv); |
| 172 | } |
| 173 | |
| 174 | int |
| 175 | nvc0_fence_create(struct drm_device *dev) |
| 176 | { |
Ben Skeggs | c420b2d | 2012-05-01 20:48:08 +1000 | [diff] [blame] | 177 | struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 178 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
Ben Skeggs | 5e120f6 | 2012-04-30 13:55:29 +1000 | [diff] [blame] | 179 | struct nvc0_fence_priv *priv; |
| 180 | int ret; |
| 181 | |
| 182 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
| 183 | if (!priv) |
| 184 | return -ENOMEM; |
| 185 | |
| 186 | priv->base.engine.destroy = nvc0_fence_destroy; |
| 187 | priv->base.engine.init = nvc0_fence_init; |
| 188 | priv->base.engine.fini = nvc0_fence_fini; |
| 189 | priv->base.engine.context_new = nvc0_fence_context_new; |
| 190 | priv->base.engine.context_del = nvc0_fence_context_del; |
| 191 | priv->base.emit = nvc0_fence_emit; |
| 192 | priv->base.sync = nvc0_fence_sync; |
| 193 | priv->base.read = nvc0_fence_read; |
| 194 | dev_priv->eng[NVOBJ_ENGINE_FENCE] = &priv->base.engine; |
| 195 | |
| 196 | ret = nouveau_bo_new(dev, 16 * pfifo->channels, 0, TTM_PL_FLAG_VRAM, |
| 197 | 0, 0, NULL, &priv->bo); |
| 198 | if (ret == 0) { |
| 199 | ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM); |
| 200 | if (ret == 0) |
| 201 | ret = nouveau_bo_map(priv->bo); |
| 202 | if (ret) |
| 203 | nouveau_bo_ref(NULL, &priv->bo); |
| 204 | } |
| 205 | |
| 206 | if (ret) |
| 207 | nvc0_fence_destroy(dev, NVOBJ_ENGINE_FENCE); |
| 208 | return ret; |
| 209 | } |