linux/drivers/gpu/drm/nouveau/core/engine/fifo/nv40.c
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   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
  38static struct ramfc_desc
  39nv40_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        { 32,  0, 0x0c,  0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
  44        { 32,  0, 0x10,  0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
  45        { 32,  0, 0x14,  0, NV04_PFIFO_CACHE1_DMA_STATE },
  46        { 28,  0, 0x18,  0, NV04_PFIFO_CACHE1_DMA_FETCH },
  47        {  2, 28, 0x18, 28, 0x002058 },
  48        { 32,  0, 0x1c,  0, NV04_PFIFO_CACHE1_ENGINE },
  49        { 32,  0, 0x20,  0, NV04_PFIFO_CACHE1_PULL1 },
  50        { 32,  0, 0x24,  0, NV10_PFIFO_CACHE1_ACQUIRE_VALUE },
  51        { 32,  0, 0x28,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP },
  52        { 32,  0, 0x2c,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT },
  53        { 32,  0, 0x30,  0, NV10_PFIFO_CACHE1_SEMAPHORE },
  54        { 32,  0, 0x34,  0, NV10_PFIFO_CACHE1_DMA_SUBROUTINE },
  55        { 32,  0, 0x38,  0, NV40_PFIFO_GRCTX_INSTANCE },
  56        { 17,  0, 0x3c,  0, NV04_PFIFO_DMA_TIMESLICE },
  57        { 32,  0, 0x40,  0, 0x0032e4 },
  58        { 32,  0, 0x44,  0, 0x0032e8 },
  59        { 32,  0, 0x4c,  0, 0x002088 },
  60        { 32,  0, 0x50,  0, 0x003300 },
  61        { 32,  0, 0x54,  0, 0x00330c },
  62        {}
  63};
  64
  65/*******************************************************************************
  66 * FIFO channel objects
  67 ******************************************************************************/
  68
  69static int
  70nv40_fifo_object_attach(struct nouveau_object *parent,
  71                        struct nouveau_object *object, u32 handle)
  72{
  73        struct nv04_fifo_priv *priv = (void *)parent->engine;
  74        struct nv04_fifo_chan *chan = (void *)parent;
  75        u32 context, chid = chan->base.chid;
  76        int ret;
  77
  78        if (nv_iclass(object, NV_GPUOBJ_CLASS))
  79                context = nv_gpuobj(object)->addr >> 4;
  80        else
  81                context = 0x00000004; /* just non-zero */
  82
  83        switch (nv_engidx(object->engine)) {
  84        case NVDEV_ENGINE_DMAOBJ:
  85        case NVDEV_ENGINE_SW:
  86                context |= 0x00000000;
  87                break;
  88        case NVDEV_ENGINE_GR:
  89                context |= 0x00100000;
  90                break;
  91        case NVDEV_ENGINE_MPEG:
  92                context |= 0x00200000;
  93                break;
  94        default:
  95                return -EINVAL;
  96        }
  97
  98        context |= chid << 23;
  99
 100        mutex_lock(&nv_subdev(priv)->mutex);
 101        ret = nouveau_ramht_insert(priv->ramht, chid, handle, context);
 102        mutex_unlock(&nv_subdev(priv)->mutex);
 103        return ret;
 104}
 105
 106static int
 107nv40_fifo_context_attach(struct nouveau_object *parent,
 108                         struct nouveau_object *engctx)
 109{
 110        struct nv04_fifo_priv *priv = (void *)parent->engine;
 111        struct nv04_fifo_chan *chan = (void *)parent;
 112        unsigned long flags;
 113        u32 reg, ctx;
 114
 115        switch (nv_engidx(engctx->engine)) {
 116        case NVDEV_ENGINE_SW:
 117                return 0;
 118        case NVDEV_ENGINE_GR:
 119                reg = 0x32e0;
 120                ctx = 0x38;
 121                break;
 122        case NVDEV_ENGINE_MPEG:
 123                reg = 0x330c;
 124                ctx = 0x54;
 125                break;
 126        default:
 127                return -EINVAL;
 128        }
 129
 130        spin_lock_irqsave(&priv->base.lock, flags);
 131        nv_engctx(engctx)->addr = nv_gpuobj(engctx)->addr >> 4;
 132        nv_mask(priv, 0x002500, 0x00000001, 0x00000000);
 133
 134        if ((nv_rd32(priv, 0x003204) & priv->base.max) == chan->base.chid)
 135                nv_wr32(priv, reg, nv_engctx(engctx)->addr);
 136        nv_wo32(priv->ramfc, chan->ramfc + ctx, nv_engctx(engctx)->addr);
 137
 138        nv_mask(priv, 0x002500, 0x00000001, 0x00000001);
 139        spin_unlock_irqrestore(&priv->base.lock, flags);
 140        return 0;
 141}
 142
 143static int
 144nv40_fifo_context_detach(struct nouveau_object *parent, bool suspend,
 145                         struct nouveau_object *engctx)
 146{
 147        struct nv04_fifo_priv *priv = (void *)parent->engine;
 148        struct nv04_fifo_chan *chan = (void *)parent;
 149        unsigned long flags;
 150        u32 reg, ctx;
 151
 152        switch (nv_engidx(engctx->engine)) {
 153        case NVDEV_ENGINE_SW:
 154                return 0;
 155        case NVDEV_ENGINE_GR:
 156                reg = 0x32e0;
 157                ctx = 0x38;
 158                break;
 159        case NVDEV_ENGINE_MPEG:
 160                reg = 0x330c;
 161                ctx = 0x54;
 162                break;
 163        default:
 164                return -EINVAL;
 165        }
 166
 167        spin_lock_irqsave(&priv->base.lock, flags);
 168        nv_mask(priv, 0x002500, 0x00000001, 0x00000000);
 169
 170        if ((nv_rd32(priv, 0x003204) & priv->base.max) == chan->base.chid)
 171                nv_wr32(priv, reg, 0x00000000);
 172        nv_wo32(priv->ramfc, chan->ramfc + ctx, 0x00000000);
 173
 174        nv_mask(priv, 0x002500, 0x00000001, 0x00000001);
 175        spin_unlock_irqrestore(&priv->base.lock, flags);
 176        return 0;
 177}
 178
 179static int
 180nv40_fifo_chan_ctor(struct nouveau_object *parent,
 181                    struct nouveau_object *engine,
 182                    struct nouveau_oclass *oclass, void *data, u32 size,
 183                    struct nouveau_object **pobject)
 184{
 185        struct nv04_fifo_priv *priv = (void *)engine;
 186        struct nv04_fifo_chan *chan;
 187        struct nv03_channel_dma_class *args = data;
 188        int ret;
 189
 190        if (size < sizeof(*args))
 191                return -EINVAL;
 192
 193        ret = nouveau_fifo_channel_create(parent, engine, oclass, 0, 0xc00000,
 194                                          0x1000, args->pushbuf,
 195                                          (1ULL << NVDEV_ENGINE_DMAOBJ) |
 196                                          (1ULL << NVDEV_ENGINE_SW) |
 197                                          (1ULL << NVDEV_ENGINE_GR) |
 198                                          (1ULL << NVDEV_ENGINE_MPEG), &chan);
 199        *pobject = nv_object(chan);
 200        if (ret)
 201                return ret;
 202
 203        nv_parent(chan)->context_attach = nv40_fifo_context_attach;
 204        nv_parent(chan)->context_detach = nv40_fifo_context_detach;
 205        nv_parent(chan)->object_attach = nv40_fifo_object_attach;
 206        nv_parent(chan)->object_detach = nv04_fifo_object_detach;
 207        chan->ramfc = chan->base.chid * 128;
 208
 209        nv_wo32(priv->ramfc, chan->ramfc + 0x00, args->offset);
 210        nv_wo32(priv->ramfc, chan->ramfc + 0x04, args->offset);
 211        nv_wo32(priv->ramfc, chan->ramfc + 0x0c, chan->base.pushgpu->addr >> 4);
 212        nv_wo32(priv->ramfc, chan->ramfc + 0x18, 0x30000000 |
 213                             NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
 214                             NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
 215#ifdef __BIG_ENDIAN
 216                             NV_PFIFO_CACHE1_BIG_ENDIAN |
 217#endif
 218                             NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8);
 219        nv_wo32(priv->ramfc, chan->ramfc + 0x3c, 0x0001ffff);
 220        return 0;
 221}
 222
 223static struct nouveau_ofuncs
 224nv40_fifo_ofuncs = {
 225        .ctor = nv40_fifo_chan_ctor,
 226        .dtor = nv04_fifo_chan_dtor,
 227        .init = nv04_fifo_chan_init,
 228        .fini = nv04_fifo_chan_fini,
 229        .rd32 = _nouveau_fifo_channel_rd32,
 230        .wr32 = _nouveau_fifo_channel_wr32,
 231};
 232
 233static struct nouveau_oclass
 234nv40_fifo_sclass[] = {
 235        { NV40_CHANNEL_DMA_CLASS, &nv40_fifo_ofuncs },
 236        {}
 237};
 238
 239/*******************************************************************************
 240 * FIFO context - basically just the instmem reserved for the channel
 241 ******************************************************************************/
 242
 243static struct nouveau_oclass
 244nv40_fifo_cclass = {
 245        .handle = NV_ENGCTX(FIFO, 0x40),
 246        .ofuncs = &(struct nouveau_ofuncs) {
 247                .ctor = nv04_fifo_context_ctor,
 248                .dtor = _nouveau_fifo_context_dtor,
 249                .init = _nouveau_fifo_context_init,
 250                .fini = _nouveau_fifo_context_fini,
 251                .rd32 = _nouveau_fifo_context_rd32,
 252                .wr32 = _nouveau_fifo_context_wr32,
 253        },
 254};
 255
 256/*******************************************************************************
 257 * PFIFO engine
 258 ******************************************************************************/
 259
 260static int
 261nv40_fifo_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 262               struct nouveau_oclass *oclass, void *data, u32 size,
 263               struct nouveau_object **pobject)
 264{
 265        struct nv04_instmem_priv *imem = nv04_instmem(parent);
 266        struct nv04_fifo_priv *priv;
 267        int ret;
 268
 269        ret = nouveau_fifo_create(parent, engine, oclass, 0, 31, &priv);
 270        *pobject = nv_object(priv);
 271        if (ret)
 272                return ret;
 273
 274        nouveau_ramht_ref(imem->ramht, &priv->ramht);
 275        nouveau_gpuobj_ref(imem->ramro, &priv->ramro);
 276        nouveau_gpuobj_ref(imem->ramfc, &priv->ramfc);
 277
 278        nv_subdev(priv)->unit = 0x00000100;
 279        nv_subdev(priv)->intr = nv04_fifo_intr;
 280        nv_engine(priv)->cclass = &nv40_fifo_cclass;
 281        nv_engine(priv)->sclass = nv40_fifo_sclass;
 282        priv->base.pause = nv04_fifo_pause;
 283        priv->base.start = nv04_fifo_start;
 284        priv->ramfc_desc = nv40_ramfc;
 285        return 0;
 286}
 287
 288static int
 289nv40_fifo_init(struct nouveau_object *object)
 290{
 291        struct nv04_fifo_priv *priv = (void *)object;
 292        struct nouveau_fb *pfb = nouveau_fb(object);
 293        int ret;
 294
 295        ret = nouveau_fifo_init(&priv->base);
 296        if (ret)
 297                return ret;
 298
 299        nv_wr32(priv, 0x002040, 0x000000ff);
 300        nv_wr32(priv, 0x002044, 0x2101ffff);
 301        nv_wr32(priv, 0x002058, 0x00000001);
 302
 303        nv_wr32(priv, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
 304                                       ((priv->ramht->bits - 9) << 16) |
 305                                        (priv->ramht->base.addr >> 8));
 306        nv_wr32(priv, NV03_PFIFO_RAMRO, priv->ramro->addr >> 8);
 307
 308        switch (nv_device(priv)->chipset) {
 309        case 0x47:
 310        case 0x49:
 311        case 0x4b:
 312                nv_wr32(priv, 0x002230, 0x00000001);
 313        case 0x40:
 314        case 0x41:
 315        case 0x42:
 316        case 0x43:
 317        case 0x45:
 318        case 0x48:
 319                nv_wr32(priv, 0x002220, 0x00030002);
 320                break;
 321        default:
 322                nv_wr32(priv, 0x002230, 0x00000000);
 323                nv_wr32(priv, 0x002220, ((pfb->ram->size - 512 * 1024 +
 324                                         priv->ramfc->addr) >> 16) |
 325                                        0x00030000);
 326                break;
 327        }
 328
 329        nv_wr32(priv, NV03_PFIFO_CACHE1_PUSH1, priv->base.max);
 330
 331        nv_wr32(priv, NV03_PFIFO_INTR_0, 0xffffffff);
 332        nv_wr32(priv, NV03_PFIFO_INTR_EN_0, 0xffffffff);
 333
 334        nv_wr32(priv, NV03_PFIFO_CACHE1_PUSH0, 1);
 335        nv_wr32(priv, NV04_PFIFO_CACHE1_PULL0, 1);
 336        nv_wr32(priv, NV03_PFIFO_CACHES, 1);
 337        return 0;
 338}
 339
 340struct nouveau_oclass
 341nv40_fifo_oclass = {
 342        .handle = NV_ENGINE(FIFO, 0x40),
 343        .ofuncs = &(struct nouveau_ofuncs) {
 344                .ctor = nv40_fifo_ctor,
 345                .dtor = nv04_fifo_dtor,
 346                .init = nv40_fifo_init,
 347                .fini = _nouveau_fifo_fini,
 348        },
 349};
 350