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 #include <core/subdev/instmem/nv04.h>
36 static struct ramfc_desc {
43 { 32, 0, 0x00, 0, NV04_PFIFO_CACHE1_DMA_PUT },
44 { 32, 0, 0x04, 0, NV04_PFIFO_CACHE1_DMA_GET },
45 { 32, 0, 0x08, 0, NV10_PFIFO_CACHE1_REF_CNT },
46 { 16, 0, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
47 { 16, 16, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
48 { 32, 0, 0x10, 0, NV04_PFIFO_CACHE1_DMA_STATE },
49 { 32, 0, 0x14, 0, NV04_PFIFO_CACHE1_DMA_FETCH },
50 { 32, 0, 0x18, 0, NV04_PFIFO_CACHE1_ENGINE },
51 { 32, 0, 0x1c, 0, NV04_PFIFO_CACHE1_PULL1 },
55 struct nv10_fifo_priv {
56 struct nouveau_fifo_priv base;
57 struct ramfc_desc *ramfc_desc;
58 struct nouveau_gpuobj *ramro;
59 struct nouveau_gpuobj *ramfc;
62 struct nv10_fifo_chan {
63 struct nouveau_fifo_chan base;
64 struct nouveau_gpuobj *ramfc;
68 nv10_fifo_context_new(struct nouveau_channel *chan, int engine)
70 struct drm_device *dev = chan->dev;
71 struct drm_nouveau_private *dev_priv = dev->dev_private;
72 struct nv10_fifo_priv *priv = nv_engine(dev, engine);
73 struct nv10_fifo_chan *fctx;
77 fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
81 /* map channel control registers */
82 chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
83 NV03_USER(chan->id), PAGE_SIZE);
89 /* initialise default fifo context */
90 ret = nouveau_gpuobj_new_fake(dev, priv->ramfc->pinst +
91 chan->id * 32, ~0, 32,
92 NVOBJ_FLAG_ZERO_FREE, &fctx->ramfc);
96 nv_wo32(fctx->ramfc, 0x00, chan->pushbuf_base);
97 nv_wo32(fctx->ramfc, 0x04, chan->pushbuf_base);
98 nv_wo32(fctx->ramfc, 0x08, 0x00000000);
99 nv_wo32(fctx->ramfc, 0x0c, chan->pushbuf->pinst >> 4);
100 nv_wo32(fctx->ramfc, 0x10, 0x00000000);
101 nv_wo32(fctx->ramfc, 0x14, NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
102 NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
104 NV_PFIFO_CACHE1_BIG_ENDIAN |
106 NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8);
107 nv_wo32(fctx->ramfc, 0x18, 0x00000000);
108 nv_wo32(fctx->ramfc, 0x1c, 0x00000000);
110 /* enable dma mode on the channel */
111 spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
112 nv_mask(dev, NV04_PFIFO_MODE, (1 << chan->id), (1 << chan->id));
113 spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
117 priv->base.base.context_del(chan, engine);
122 nv10_fifo_create(struct drm_device *dev)
124 struct drm_nouveau_private *dev_priv = dev->dev_private;
125 struct nv04_instmem_priv *imem = dev_priv->engine.instmem.priv;
126 struct nv10_fifo_priv *priv;
128 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
132 nouveau_gpuobj_ref(imem->ramro, &priv->ramro);
133 nouveau_gpuobj_ref(imem->ramfc, &priv->ramfc);
135 priv->base.base.destroy = nv04_fifo_destroy;
136 priv->base.base.init = nv04_fifo_init;
137 priv->base.base.fini = nv04_fifo_fini;
138 priv->base.base.context_new = nv10_fifo_context_new;
139 priv->base.base.context_del = nv04_fifo_context_del;
140 priv->base.channels = 31;
141 priv->ramfc_desc = nv10_ramfc;
142 dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base;
144 nouveau_irq_register(dev, 8, nv04_fifo_isr);