UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/
[pandora-kernel.git] / drivers / gpu / drm / nouveau / nv17_fifo.c
1 /*
2  * Copyright (C) 2012 Ben Skeggs.
3  * All Rights Reserved.
4  *
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:
12  *
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.
16  *
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.
24  *
25  */
26
27 #include <drm/drmP.h>
28 #include "nouveau_drv.h"
29 #include "nouveau_fifo.h"
30 #include "nouveau_util.h"
31 #include "nouveau_ramht.h"
32
33 static struct ramfc_desc {
34         unsigned bits:6;
35         unsigned ctxs:5;
36         unsigned ctxp:8;
37         unsigned regs:5;
38         unsigned regp;
39 } nv17_ramfc[] = {
40         { 32,  0, 0x00,  0, NV04_PFIFO_CACHE1_DMA_PUT },
41         { 32,  0, 0x04,  0, NV04_PFIFO_CACHE1_DMA_GET },
42         { 32,  0, 0x08,  0, NV10_PFIFO_CACHE1_REF_CNT },
43         { 16,  0, 0x0c,  0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
44         { 16, 16, 0x0c,  0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
45         { 32,  0, 0x10,  0, NV04_PFIFO_CACHE1_DMA_STATE },
46         { 32,  0, 0x14,  0, NV04_PFIFO_CACHE1_DMA_FETCH },
47         { 32,  0, 0x18,  0, NV04_PFIFO_CACHE1_ENGINE },
48         { 32,  0, 0x1c,  0, NV04_PFIFO_CACHE1_PULL1 },
49         { 32,  0, 0x20,  0, NV10_PFIFO_CACHE1_ACQUIRE_VALUE },
50         { 32,  0, 0x24,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP },
51         { 32,  0, 0x28,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT },
52         { 32,  0, 0x2c,  0, NV10_PFIFO_CACHE1_SEMAPHORE },
53         { 32,  0, 0x30,  0, NV10_PFIFO_CACHE1_DMA_SUBROUTINE },
54         {}
55 };
56
57 struct nv17_fifo_priv {
58         struct nouveau_fifo_priv base;
59         struct ramfc_desc *ramfc_desc;
60 };
61
62 struct nv17_fifo_chan {
63         struct nouveau_fifo_chan base;
64         struct nouveau_gpuobj *ramfc;
65 };
66
67 static int
68 nv17_fifo_context_new(struct nouveau_channel *chan, int engine)
69 {
70         struct drm_device *dev = chan->dev;
71         struct drm_nouveau_private *dev_priv = dev->dev_private;
72         struct nv17_fifo_priv *priv = nv_engine(dev, engine);
73         struct nv17_fifo_chan *fctx;
74         unsigned long flags;
75         int ret;
76
77         fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
78         if (!fctx)
79                 return -ENOMEM;
80
81         /* map channel control registers */
82         chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
83                              NV03_USER(chan->id), PAGE_SIZE);
84         if (!chan->user) {
85                 ret = -ENOMEM;
86                 goto error;
87         }
88
89         /* initialise default fifo context */
90         ret = nouveau_gpuobj_new_fake(dev, dev_priv->ramfc->pinst +
91                                       chan->id * 64, ~0, 64,
92                                       NVOBJ_FLAG_ZERO_ALLOC |
93                                       NVOBJ_FLAG_ZERO_FREE, &fctx->ramfc);
94         if (ret)
95                 goto error;
96
97         nv_wo32(fctx->ramfc, 0x00, chan->pushbuf_base);
98         nv_wo32(fctx->ramfc, 0x04, chan->pushbuf_base);
99         nv_wo32(fctx->ramfc, 0x0c, chan->pushbuf->pinst >> 4);
100         nv_wo32(fctx->ramfc, 0x14, NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
101                                    NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
102 #ifdef __BIG_ENDIAN
103                                    NV_PFIFO_CACHE1_BIG_ENDIAN |
104 #endif
105                                    NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8);
106
107         /* enable dma mode on the channel */
108         spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
109         nv_mask(dev, NV04_PFIFO_MODE, (1 << chan->id), (1 << chan->id));
110         spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
111
112 error:
113         if (ret)
114                 priv->base.base.context_del(chan, engine);
115         return ret;
116 }
117
118 static int
119 nv17_fifo_init(struct drm_device *dev, int engine)
120 {
121         struct drm_nouveau_private *dev_priv = dev->dev_private;
122         struct nv17_fifo_priv *priv = nv_engine(dev, engine);
123         int i;
124
125         nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, 0);
126         nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, NV_PMC_ENABLE_PFIFO);
127
128         nv_wr32(dev, NV04_PFIFO_DELAY_0, 0x000000ff);
129         nv_wr32(dev, NV04_PFIFO_DMA_TIMESLICE, 0x0101ffff);
130
131         nv_wr32(dev, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
132                                        ((dev_priv->ramht->bits - 9) << 16) |
133                                        (dev_priv->ramht->gpuobj->pinst >> 8));
134         nv_wr32(dev, NV03_PFIFO_RAMRO, dev_priv->ramro->pinst >> 8);
135         nv_wr32(dev, NV03_PFIFO_RAMFC, 0x00010000 |
136                                        dev_priv->ramfc->pinst >> 8);
137
138         nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, priv->base.channels);
139
140         nv_wr32(dev, NV03_PFIFO_INTR_0, 0xffffffff);
141         nv_wr32(dev, NV03_PFIFO_INTR_EN_0, 0xffffffff);
142
143         nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1);
144         nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1);
145         nv_wr32(dev, NV03_PFIFO_CACHES, 1);
146
147         for (i = 0; i < priv->base.channels; i++) {
148                 if (dev_priv->channels.ptr[i])
149                         nv_mask(dev, NV04_PFIFO_MODE, (1 << i), (1 << i));
150         }
151
152         return 0;
153 }
154
155 int
156 nv17_fifo_create(struct drm_device *dev)
157 {
158         struct drm_nouveau_private *dev_priv = dev->dev_private;
159         struct nv17_fifo_priv *priv;
160
161         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
162         if (!priv)
163                 return -ENOMEM;
164
165         priv->base.base.destroy = nv04_fifo_destroy;
166         priv->base.base.init = nv17_fifo_init;
167         priv->base.base.fini = nv04_fifo_fini;
168         priv->base.base.context_new = nv17_fifo_context_new;
169         priv->base.base.context_del = nv04_fifo_context_del;
170         priv->base.channels = 31;
171         priv->ramfc_desc = nv17_ramfc;
172         dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base;
173
174         nouveau_irq_register(dev, 8, nv04_fifo_isr);
175         return 0;
176 }