LXR linux/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.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/client.h>
  26#include <core/os.h>
  27#include <core/engctx.h>
  28#include <core/handle.h>
  29
  30#include <subdev/fb.h>
  31#include <subdev/timer.h>
  32#include <subdev/instmem.h>
  33
  34#include <engine/fifo.h>
  35#include <engine/mpeg.h>
  36#include <engine/mpeg/nv31.h>
  37
  38/*******************************************************************************
  39 * MPEG object classes
  40 ******************************************************************************/
  41
  42static int
  43nv31_mpeg_object_ctor(struct nouveau_object *parent,
  44                      struct nouveau_object *engine,
  45                      struct nouveau_oclass *oclass, void *data, u32 size,
  46                      struct nouveau_object **pobject)
  47{
  48        struct nouveau_gpuobj *obj;
  49        int ret;
  50
  51        ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
  52                                    20, 16, 0, &obj);
  53        *pobject = nv_object(obj);
  54        if (ret)
  55                return ret;
  56
  57        nv_wo32(obj, 0x00, nv_mclass(obj));
  58        nv_wo32(obj, 0x04, 0x00000000);
  59        nv_wo32(obj, 0x08, 0x00000000);
  60        nv_wo32(obj, 0x0c, 0x00000000);
  61        return 0;
  62}
  63
  64static int
  65nv31_mpeg_mthd_dma(struct nouveau_object *object, u32 mthd, void *arg, u32 len)
  66{
  67        struct nouveau_instmem *imem = nouveau_instmem(object);
  68        struct nv31_mpeg_priv *priv = (void *)object->engine;
  69        u32 inst = *(u32 *)arg << 4;
  70        u32 dma0 = nv_ro32(imem, inst + 0);
  71        u32 dma1 = nv_ro32(imem, inst + 4);
  72        u32 dma2 = nv_ro32(imem, inst + 8);
  73        u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
  74        u32 size = dma1 + 1;
  75
  76        /* only allow linear DMA objects */
  77        if (!(dma0 & 0x00002000))
  78                return -EINVAL;
  79
  80        if (mthd == 0x0190) {
  81                /* DMA_CMD */
  82                nv_mask(priv, 0x00b300, 0x00010000, (dma0 & 0x00030000) ? 0x00010000 : 0);
  83                nv_wr32(priv, 0x00b334, base);
  84                nv_wr32(priv, 0x00b324, size);
  85        } else
  86        if (mthd == 0x01a0) {
  87                /* DMA_DATA */
  88                nv_mask(priv, 0x00b300, 0x00020000, (dma0 & 0x00030000) ? 0x00020000 : 0);
  89                nv_wr32(priv, 0x00b360, base);
  90                nv_wr32(priv, 0x00b364, size);
  91        } else {
  92                /* DMA_IMAGE, VRAM only */
  93                if (dma0 & 0x00030000)
  94                        return -EINVAL;
  95
  96                nv_wr32(priv, 0x00b370, base);
  97                nv_wr32(priv, 0x00b374, size);
  98        }
  99
 100        return 0;
 101}
 102
 103struct nouveau_ofuncs
 104nv31_mpeg_ofuncs = {
 105        .ctor = nv31_mpeg_object_ctor,
 106        .dtor = _nouveau_gpuobj_dtor,
 107        .init = _nouveau_gpuobj_init,
 108        .fini = _nouveau_gpuobj_fini,
 109        .rd32 = _nouveau_gpuobj_rd32,
 110        .wr32 = _nouveau_gpuobj_wr32,
 111};
 112
 113static struct nouveau_omthds
 114nv31_mpeg_omthds[] = {
 115        { 0x0190, 0x0190, nv31_mpeg_mthd_dma },
 116        { 0x01a0, 0x01a0, nv31_mpeg_mthd_dma },
 117        { 0x01b0, 0x01b0, nv31_mpeg_mthd_dma },
 118        {}
 119};
 120
 121struct nouveau_oclass
 122nv31_mpeg_sclass[] = {
 123        { 0x3174, &nv31_mpeg_ofuncs, nv31_mpeg_omthds },
 124        {}
 125};
 126
 127/*******************************************************************************
 128 * PMPEG context
 129 ******************************************************************************/
 130
 131static int
 132nv31_mpeg_context_ctor(struct nouveau_object *parent,
 133                       struct nouveau_object *engine,
 134                       struct nouveau_oclass *oclass, void *data, u32 size,
 135                       struct nouveau_object **pobject)
 136{
 137        struct nv31_mpeg_priv *priv = (void *)engine;
 138        struct nv31_mpeg_chan *chan;
 139        unsigned long flags;
 140        int ret;
 141
 142        ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
 143        *pobject = nv_object(chan);
 144        if (ret)
 145                return ret;
 146
 147        spin_lock_irqsave(&nv_engine(priv)->lock, flags);
 148        if (priv->chan) {
 149                spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);
 150                nouveau_object_destroy(&chan->base);
 151                *pobject = NULL;
 152                return -EBUSY;
 153        }
 154        priv->chan = chan;
 155        spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);
 156        return 0;
 157}
 158
 159static void
 160nv31_mpeg_context_dtor(struct nouveau_object *object)
 161{
 162        struct nv31_mpeg_priv *priv = (void *)object->engine;
 163        struct nv31_mpeg_chan *chan = (void *)object;
 164        unsigned long flags;
 165
 166        spin_lock_irqsave(&nv_engine(priv)->lock, flags);
 167        priv->chan = NULL;
 168        spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);
 169        nouveau_object_destroy(&chan->base);
 170}
 171
 172struct nouveau_oclass
 173nv31_mpeg_cclass = {
 174        .handle = NV_ENGCTX(MPEG, 0x31),
 175        .ofuncs = &(struct nouveau_ofuncs) {
 176                .ctor = nv31_mpeg_context_ctor,
 177                .dtor = nv31_mpeg_context_dtor,
 178                .init = nouveau_object_init,
 179                .fini = nouveau_object_fini,
 180        },
 181};
 182
 183/*******************************************************************************
 184 * PMPEG engine/subdev functions
 185 ******************************************************************************/
 186
 187void
 188nv31_mpeg_tile_prog(struct nouveau_engine *engine, int i)
 189{
 190        struct nouveau_fb_tile *tile = &nouveau_fb(engine)->tile.region[i];
 191        struct nv31_mpeg_priv *priv = (void *)engine;
 192
 193        nv_wr32(priv, 0x00b008 + (i * 0x10), tile->pitch);
 194        nv_wr32(priv, 0x00b004 + (i * 0x10), tile->limit);
 195        nv_wr32(priv, 0x00b000 + (i * 0x10), tile->addr);
 196}
 197
 198void
 199nv31_mpeg_intr(struct nouveau_subdev *subdev)
 200{
 201        struct nv31_mpeg_priv *priv = (void *)subdev;
 202        struct nouveau_fifo *pfifo = nouveau_fifo(subdev);
 203        struct nouveau_handle *handle;
 204        struct nouveau_object *engctx;
 205        u32 stat = nv_rd32(priv, 0x00b100);
 206        u32 type = nv_rd32(priv, 0x00b230);
 207        u32 mthd = nv_rd32(priv, 0x00b234);
 208        u32 data = nv_rd32(priv, 0x00b238);
 209        u32 show = stat;
 210        unsigned long flags;
 211
 212        spin_lock_irqsave(&nv_engine(priv)->lock, flags);
 213        engctx = nv_object(priv->chan);
 214
 215        if (stat & 0x01000000) {
 216                /* happens on initial binding of the object */
 217                if (type == 0x00000020 && mthd == 0x0000) {
 218                        nv_mask(priv, 0x00b308, 0x00000000, 0x00000000);
 219                        show &= ~0x01000000;
 220                }
 221
 222                if (type == 0x00000010 && engctx) {
 223                        handle = nouveau_handle_get_class(engctx, 0x3174);
 224                        if (handle && !nv_call(handle->object, mthd, data))
 225                                show &= ~0x01000000;
 226                        nouveau_handle_put(handle);
 227                }
 228        }
 229
 230        nv_wr32(priv, 0x00b100, stat);
 231        nv_wr32(priv, 0x00b230, 0x00000001);
 232
 233        if (show) {
 234                nv_error(priv, "ch %d [%s] 0x%08x 0x%08x 0x%08x 0x%08x\n",
 235                         pfifo->chid(pfifo, engctx),
 236                         nouveau_client_name(engctx), stat, type, mthd, data);
 237        }
 238
 239        spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);
 240}
 241
 242static int
 243nv31_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 244               struct nouveau_oclass *oclass, void *data, u32 size,
 245               struct nouveau_object **pobject)
 246{
 247        struct nv31_mpeg_priv *priv;
 248        int ret;
 249
 250        ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
 251        *pobject = nv_object(priv);
 252        if (ret)
 253                return ret;
 254
 255        nv_subdev(priv)->unit = 0x00000002;
 256        nv_subdev(priv)->intr = nv31_mpeg_intr;
 257        nv_engine(priv)->cclass = &nv31_mpeg_cclass;
 258        nv_engine(priv)->sclass = nv31_mpeg_sclass;
 259        nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
 260        return 0;
 261}
 262
 263int
 264nv31_mpeg_init(struct nouveau_object *object)
 265{
 266        struct nouveau_engine *engine = nv_engine(object);
 267        struct nv31_mpeg_priv *priv = (void *)object;
 268        struct nouveau_fb *pfb = nouveau_fb(object);
 269        int ret, i;
 270
 271        ret = nouveau_mpeg_init(&priv->base);
 272        if (ret)
 273                return ret;
 274
 275        /* VPE init */
 276        nv_wr32(priv, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
 277        nv_wr32(priv, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
 278
 279        for (i = 0; i < pfb->tile.regions; i++)
 280                engine->tile_prog(engine, i);
 281
 282        /* PMPEG init */
 283        nv_wr32(priv, 0x00b32c, 0x00000000);
 284        nv_wr32(priv, 0x00b314, 0x00000100);
 285        nv_wr32(priv, 0x00b220, 0x00000031);
 286        nv_wr32(priv, 0x00b300, 0x02001ec1);
 287        nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
 288
 289        nv_wr32(priv, 0x00b100, 0xffffffff);
 290        nv_wr32(priv, 0x00b140, 0xffffffff);
 291
 292        if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) {
 293                nv_error(priv, "timeout 0x%08x\n", nv_rd32(priv, 0x00b200));
 294                return -EBUSY;
 295        }
 296
 297        return 0;
 298}
 299
 300struct nouveau_oclass
 301nv31_mpeg_oclass = {
 302        .handle = NV_ENGINE(MPEG, 0x31),
 303        .ofuncs = &(struct nouveau_ofuncs) {
 304                .ctor = nv31_mpeg_ctor,
 305                .dtor = _nouveau_mpeg_dtor,
 306                .init = nv31_mpeg_init,
 307                .fini = _nouveau_mpeg_fini,
 308        },
 309};
 310