drivers/gpu/drm/nouveau/core/engine/fifo/nv10.c

   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 <core/os.h>
  26 #include <core/class.h>
  27 #include <core/engctx.h>
  28 #include <core/ramht.h>
  29
  30 #include <subdev/instmem.h>
  31 #include <subdev/instmem/nv04.h>
  32 #include <subdev/fb.h>
  33
  34 #include <engine/fifo.h>
  35
  36 #include "nv04.h"
  37
  38 static struct ramfc_desc
  39 nv10_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         {}
  50 };
  51
  52 /*******************************************************************************
  53  * FIFO channel objects
  54  ******************************************************************************/
  55
  56 static int
  57 nv10_fifo_chan_ctor(struct nouveau_object *parent,
  58                     struct nouveau_object *engine,
  59                     struct nouveau_oclass *oclass, void *data, u32 size,
  60                     struct nouveau_object **pobject)
  61 {
  62         struct nv04_fifo_priv *priv = (void *)engine;
  63         struct nv04_fifo_chan *chan;
  64         struct nv_channel_dma_class *args = data;
  65         int ret;
  66
  67         if (size < sizeof(*args))
  68                 return -EINVAL;
  69
  70         ret = nouveau_fifo_channel_create(parent, engine, oclass, 0, 0x800000,
  71                                           0x10000, args->pushbuf,
  72                                           (1 << NVDEV_ENGINE_DMAOBJ) |
  73                                           (1 << NVDEV_ENGINE_SW) |
  74                                           (1 << NVDEV_ENGINE_GR), &chan);
  75         *pobject = nv_object(chan);
  76         if (ret)
  77                 return ret;
  78
  79         nv_parent(chan)->object_attach = nv04_fifo_object_attach;
  80         nv_parent(chan)->object_detach = nv04_fifo_object_detach;
  81         chan->ramfc = chan->base.chid * 32;
  82
  83         nv_wo32(priv->ramfc, chan->ramfc + 0x00, args->offset);
  84         nv_wo32(priv->ramfc, chan->ramfc + 0x04, args->offset);
  85         nv_wo32(priv->ramfc, chan->ramfc + 0x0c, chan->base.pushgpu->addr >> 4);
  86         nv_wo32(priv->ramfc, chan->ramfc + 0x14,
  87                              NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
  88                              NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
  89 #ifdef __BIG_ENDIAN
  90                              NV_PFIFO_CACHE1_BIG_ENDIAN |
  91 #endif
  92                              NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8);
  93         return 0;
  94 }
  95
  96 static struct nouveau_ofuncs
  97 nv10_fifo_ofuncs = {
  98         .ctor = nv10_fifo_chan_ctor,
  99         .dtor = nv04_fifo_chan_dtor,
 100         .init = nv04_fifo_chan_init,
 101         .fini = nv04_fifo_chan_fini,
 102         .rd32 = _nouveau_fifo_channel_rd32,
 103         .wr32 = _nouveau_fifo_channel_wr32,
 104 };
 105
 106 static struct nouveau_oclass
 107 nv10_fifo_sclass[] = {
 108         { 0x006e, &nv10_fifo_ofuncs },
 109         {}
 110 };
 111
 112 /*******************************************************************************
 113  * FIFO context - basically just the instmem reserved for the channel
 114  ******************************************************************************/
 115
 116 static struct nouveau_oclass
 117 nv10_fifo_cclass = {
 118         .handle = NV_ENGCTX(FIFO, 0x10),
 119         .ofuncs = &(struct nouveau_ofuncs) {
 120                 .ctor = nv04_fifo_context_ctor,
 121                 .dtor = _nouveau_fifo_context_dtor,
 122                 .init = _nouveau_fifo_context_init,
 123                 .fini = _nouveau_fifo_context_fini,
 124                 .rd32 = _nouveau_fifo_context_rd32,
 125                 .wr32 = _nouveau_fifo_context_wr32,
 126         },
 127 };
 128
 129 /*******************************************************************************
 130  * PFIFO engine
 131  ******************************************************************************/
 132
 133 static int
 134 nv10_fifo_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 135                struct nouveau_oclass *oclass, void *data, u32 size,
 136                struct nouveau_object **pobject)
 137 {
 138         struct nv04_instmem_priv *imem = nv04_instmem(parent);
 139         struct nv04_fifo_priv *priv;
 140         int ret;
 141
 142         ret = nouveau_fifo_create(parent, engine, oclass, 0, 31, &priv);
 143         *pobject = nv_object(priv);
 144         if (ret)
 145                 return ret;
 146
 147         nouveau_ramht_ref(imem->ramht, &priv->ramht);
 148         nouveau_gpuobj_ref(imem->ramro, &priv->ramro);
 149         nouveau_gpuobj_ref(imem->ramfc, &priv->ramfc);
 150
 151         nv_subdev(priv)->unit = 0x00000100;
 152         nv_subdev(priv)->intr = nv04_fifo_intr;
 153         nv_engine(priv)->cclass = &nv10_fifo_cclass;
 154         nv_engine(priv)->sclass = nv10_fifo_sclass;
 155         priv->base.pause = nv04_fifo_pause;
 156         priv->base.start = nv04_fifo_start;
 157         priv->ramfc_desc = nv10_ramfc;
 158         return 0;
 159 }
 160
 161 struct nouveau_oclass
 162 nv10_fifo_oclass = {
 163         .handle = NV_ENGINE(FIFO, 0x10),
 164         .ofuncs = &(struct nouveau_ofuncs) {
 165                 .ctor = nv10_fifo_ctor,
 166                 .dtor = nv04_fifo_dtor,
 167                 .init = nv04_fifo_init,
 168                 .fini = _nouveau_fifo_fini,
 169         },
 170 };