2 * Copyright (C) 2012 Ben Skeggs.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 #include "nouveau_drv.h"
30 #include <engine/fifo.h>
31 #include "nouveau_util.h"
32 #include <core/ramht.h>
34 static struct ramfc_desc {
41 { 32, 0, 0x00, 0, NV04_PFIFO_CACHE1_DMA_PUT },
42 { 32, 0, 0x04, 0, NV04_PFIFO_CACHE1_DMA_GET },
43 { 32, 0, 0x08, 0, NV10_PFIFO_CACHE1_REF_CNT },
44 { 16, 0, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
45 { 16, 16, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
46 { 32, 0, 0x10, 0, NV04_PFIFO_CACHE1_DMA_STATE },
47 { 32, 0, 0x14, 0, NV04_PFIFO_CACHE1_DMA_FETCH },
48 { 32, 0, 0x18, 0, NV04_PFIFO_CACHE1_ENGINE },
49 { 32, 0, 0x1c, 0, NV04_PFIFO_CACHE1_PULL1 },
50 { 32, 0, 0x20, 0, NV10_PFIFO_CACHE1_ACQUIRE_VALUE },
51 { 32, 0, 0x24, 0, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP },
52 { 32, 0, 0x28, 0, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT },
53 { 32, 0, 0x2c, 0, NV10_PFIFO_CACHE1_SEMAPHORE },
54 { 32, 0, 0x30, 0, NV10_PFIFO_CACHE1_DMA_SUBROUTINE },
58 struct nv17_fifo_priv {
59 struct nouveau_fifo_priv base;
60 struct ramfc_desc *ramfc_desc;
61 struct nouveau_gpuobj *ramro;
62 struct nouveau_gpuobj *ramfc;
65 struct nv17_fifo_chan {
66 struct nouveau_fifo_chan base;
71 nv17_fifo_context_new(struct nouveau_channel *chan, int engine)
73 struct drm_device *dev = chan->dev;
74 struct drm_nouveau_private *dev_priv = dev->dev_private;
75 struct nv17_fifo_priv *priv = nv_engine(dev, engine);
76 struct nv17_fifo_chan *fctx;
80 fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
84 fctx->ramfc = chan->id * 64;
86 /* map channel control registers */
87 chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
88 NV03_USER(chan->id), PAGE_SIZE);
94 /* initialise default fifo context */
95 nv_wo32(priv->ramfc, fctx->ramfc + 0x00, chan->pushbuf_base);
96 nv_wo32(priv->ramfc, fctx->ramfc + 0x04, chan->pushbuf_base);
97 nv_wo32(priv->ramfc, fctx->ramfc + 0x0c, chan->pushbuf->addr >> 4);
98 nv_wo32(priv->ramfc, fctx->ramfc + 0x14,
99 NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
100 NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
102 NV_PFIFO_CACHE1_BIG_ENDIAN |
104 NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8);
106 /* enable dma mode on the channel */
107 spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
108 nv_mask(dev, NV04_PFIFO_MODE, (1 << chan->id), (1 << chan->id));
109 spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
113 priv->base.base.context_del(chan, engine);
118 nv17_fifo_init(struct drm_device *dev, int engine)
120 struct drm_nouveau_private *dev_priv = dev->dev_private;
121 struct nv17_fifo_priv *priv = nv_engine(dev, engine);
124 nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, 0);
125 nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, NV_PMC_ENABLE_PFIFO);
127 nv_wr32(dev, NV04_PFIFO_DELAY_0, 0x000000ff);
128 nv_wr32(dev, NV04_PFIFO_DMA_TIMESLICE, 0x0101ffff);
130 nv_wr32(dev, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
131 ((dev_priv->ramht->bits - 9) << 16) |
132 (dev_priv->ramht->gpuobj->addr >> 8));
133 nv_wr32(dev, NV03_PFIFO_RAMRO, priv->ramro->addr >> 8);
134 nv_wr32(dev, NV03_PFIFO_RAMFC, 0x00010000 |
135 priv->ramfc->addr >> 8);
137 nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, priv->base.channels);
139 nv_wr32(dev, NV03_PFIFO_INTR_0, 0xffffffff);
140 nv_wr32(dev, NV03_PFIFO_INTR_EN_0, 0xffffffff);
142 nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1);
143 nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1);
144 nv_wr32(dev, NV03_PFIFO_CACHES, 1);
146 for (i = 0; i < priv->base.channels; i++) {
147 if (dev_priv->channels.ptr[i])
148 nv_mask(dev, NV04_PFIFO_MODE, (1 << i), (1 << i));
155 nv17_fifo_create(struct drm_device *dev)
157 struct drm_nouveau_private *dev_priv = dev->dev_private;
158 struct nv17_fifo_priv *priv;
160 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
164 nouveau_gpuobj_ref(nvimem_ramro(dev), &priv->ramro);
165 nouveau_gpuobj_ref(nvimem_ramfc(dev), &priv->ramfc);
167 priv->base.base.destroy = nv04_fifo_destroy;
168 priv->base.base.init = nv17_fifo_init;
169 priv->base.base.fini = nv04_fifo_fini;
170 priv->base.base.context_new = nv17_fifo_context_new;
171 priv->base.base.context_del = nv04_fifo_context_del;
172 priv->base.channels = 31;
173 priv->ramfc_desc = nv17_ramfc;
174 dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base;
176 nouveau_irq_register(dev, 8, nv04_fifo_isr);