LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.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#include <engine/mpeg.h>
  25
  26#include <core/client.h>
  27#include <core/handle.h>
  28#include <engine/fifo.h>
  29
  30struct nv44_mpeg_priv {
  31        struct nvkm_mpeg base;
  32};
  33
  34struct nv44_mpeg_chan {
  35        struct nvkm_mpeg_chan base;
  36};
  37
  38/*******************************************************************************
  39 * PMPEG context
  40 ******************************************************************************/
  41
  42static int
  43nv44_mpeg_context_ctor(struct nvkm_object *parent,
  44                       struct nvkm_object *engine,
  45                       struct nvkm_oclass *oclass, void *data, u32 size,
  46                       struct nvkm_object **pobject)
  47{
  48        struct nv44_mpeg_chan *chan;
  49        int ret;
  50
  51        ret = nvkm_mpeg_context_create(parent, engine, oclass, NULL, 264 * 4,
  52                                       16, NVOBJ_FLAG_ZERO_ALLOC, &chan);
  53        *pobject = nv_object(chan);
  54        if (ret)
  55                return ret;
  56
  57        nv_wo32(&chan->base.base, 0x78, 0x02001ec1);
  58        return 0;
  59}
  60
  61static int
  62nv44_mpeg_context_fini(struct nvkm_object *object, bool suspend)
  63{
  64
  65        struct nv44_mpeg_priv *priv = (void *)object->engine;
  66        struct nv44_mpeg_chan *chan = (void *)object;
  67        u32 inst = 0x80000000 | nv_gpuobj(chan)->addr >> 4;
  68
  69        nv_mask(priv, 0x00b32c, 0x00000001, 0x00000000);
  70        if (nv_rd32(priv, 0x00b318) == inst)
  71                nv_mask(priv, 0x00b318, 0x80000000, 0x00000000);
  72        nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
  73        return 0;
  74}
  75
  76static struct nvkm_oclass
  77nv44_mpeg_cclass = {
  78        .handle = NV_ENGCTX(MPEG, 0x44),
  79        .ofuncs = &(struct nvkm_ofuncs) {
  80                .ctor = nv44_mpeg_context_ctor,
  81                .dtor = _nvkm_mpeg_context_dtor,
  82                .init = _nvkm_mpeg_context_init,
  83                .fini = nv44_mpeg_context_fini,
  84                .rd32 = _nvkm_mpeg_context_rd32,
  85                .wr32 = _nvkm_mpeg_context_wr32,
  86        },
  87};
  88
  89/*******************************************************************************
  90 * PMPEG engine/subdev functions
  91 ******************************************************************************/
  92
  93static void
  94nv44_mpeg_intr(struct nvkm_subdev *subdev)
  95{
  96        struct nvkm_fifo *pfifo = nvkm_fifo(subdev);
  97        struct nvkm_engine *engine = nv_engine(subdev);
  98        struct nvkm_object *engctx;
  99        struct nvkm_handle *handle;
 100        struct nv44_mpeg_priv *priv = (void *)subdev;
 101        u32 inst = nv_rd32(priv, 0x00b318) & 0x000fffff;
 102        u32 stat = nv_rd32(priv, 0x00b100);
 103        u32 type = nv_rd32(priv, 0x00b230);
 104        u32 mthd = nv_rd32(priv, 0x00b234);
 105        u32 data = nv_rd32(priv, 0x00b238);
 106        u32 show = stat;
 107        int chid;
 108
 109        engctx = nvkm_engctx_get(engine, inst);
 110        chid   = pfifo->chid(pfifo, engctx);
 111
 112        if (stat & 0x01000000) {
 113                /* happens on initial binding of the object */
 114                if (type == 0x00000020 && mthd == 0x0000) {
 115                        nv_mask(priv, 0x00b308, 0x00000000, 0x00000000);
 116                        show &= ~0x01000000;
 117                }
 118
 119                if (type == 0x00000010) {
 120                        handle = nvkm_handle_get_class(engctx, 0x3174);
 121                        if (handle && !nv_call(handle->object, mthd, data))
 122                                show &= ~0x01000000;
 123                        nvkm_handle_put(handle);
 124                }
 125        }
 126
 127        nv_wr32(priv, 0x00b100, stat);
 128        nv_wr32(priv, 0x00b230, 0x00000001);
 129
 130        if (show) {
 131                nv_error(priv,
 132                         "ch %d [0x%08x %s] 0x%08x 0x%08x 0x%08x 0x%08x\n",
 133                         chid, inst << 4, nvkm_client_name(engctx), stat,
 134                         type, mthd, data);
 135        }
 136
 137        nvkm_engctx_put(engctx);
 138}
 139
 140static void
 141nv44_mpeg_me_intr(struct nvkm_subdev *subdev)
 142{
 143        struct nv44_mpeg_priv *priv = (void *)subdev;
 144        u32 stat;
 145
 146        if ((stat = nv_rd32(priv, 0x00b100)))
 147                nv44_mpeg_intr(subdev);
 148
 149        if ((stat = nv_rd32(priv, 0x00b800))) {
 150                nv_error(priv, "PMSRCH 0x%08x\n", stat);
 151                nv_wr32(priv, 0x00b800, stat);
 152        }
 153}
 154
 155static int
 156nv44_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 157               struct nvkm_oclass *oclass, void *data, u32 size,
 158               struct nvkm_object **pobject)
 159{
 160        struct nv44_mpeg_priv *priv;
 161        int ret;
 162
 163        ret = nvkm_mpeg_create(parent, engine, oclass, &priv);
 164        *pobject = nv_object(priv);
 165        if (ret)
 166                return ret;
 167
 168        nv_subdev(priv)->unit = 0x00000002;
 169        nv_subdev(priv)->intr = nv44_mpeg_me_intr;
 170        nv_engine(priv)->cclass = &nv44_mpeg_cclass;
 171        nv_engine(priv)->sclass = nv40_mpeg_sclass;
 172        nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
 173        return 0;
 174}
 175
 176struct nvkm_oclass
 177nv44_mpeg_oclass = {
 178        .handle = NV_ENGINE(MPEG, 0x44),
 179        .ofuncs = &(struct nvkm_ofuncs) {
 180                .ctor = nv44_mpeg_ctor,
 181                .dtor = _nvkm_mpeg_dtor,
 182                .init = nv31_mpeg_init,
 183                .fini = _nvkm_mpeg_fini,
 184        },
 185};
 186