kernel/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv50.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 <subdev/bar.h>
  27 #include <subdev/timer.h>
  28
  29 struct nv50_mpeg_priv {
  30         struct nvkm_mpeg base;
  31 };
  32
  33 struct nv50_mpeg_chan {
  34         struct nvkm_mpeg_chan base;
  35 };
  36
  37 /*******************************************************************************
  38  * MPEG object classes
  39  ******************************************************************************/
  40
  41 static int
  42 nv50_mpeg_object_ctor(struct nvkm_object *parent,
  43                       struct nvkm_object *engine,
  44                       struct nvkm_oclass *oclass, void *data, u32 size,
  45                       struct nvkm_object **pobject)
  46 {
  47         struct nvkm_gpuobj *obj;
  48         int ret;
  49
  50         ret = nvkm_gpuobj_create(parent, engine, oclass, 0, parent,
  51                                  16, 16, 0, &obj);
  52         *pobject = nv_object(obj);
  53         if (ret)
  54                 return ret;
  55
  56         nv_wo32(obj, 0x00, nv_mclass(obj));
  57         nv_wo32(obj, 0x04, 0x00000000);
  58         nv_wo32(obj, 0x08, 0x00000000);
  59         nv_wo32(obj, 0x0c, 0x00000000);
  60         return 0;
  61 }
  62
  63 struct nvkm_ofuncs
  64 nv50_mpeg_ofuncs = {
  65         .ctor = nv50_mpeg_object_ctor,
  66         .dtor = _nvkm_gpuobj_dtor,
  67         .init = _nvkm_gpuobj_init,
  68         .fini = _nvkm_gpuobj_fini,
  69         .rd32 = _nvkm_gpuobj_rd32,
  70         .wr32 = _nvkm_gpuobj_wr32,
  71 };
  72
  73 static struct nvkm_oclass
  74 nv50_mpeg_sclass[] = {
  75         { 0x3174, &nv50_mpeg_ofuncs },
  76         {}
  77 };
  78
  79 /*******************************************************************************
  80  * PMPEG context
  81  ******************************************************************************/
  82
  83 int
  84 nv50_mpeg_context_ctor(struct nvkm_object *parent,
  85                        struct nvkm_object *engine,
  86                        struct nvkm_oclass *oclass, void *data, u32 size,
  87                        struct nvkm_object **pobject)
  88 {
  89         struct nvkm_bar *bar = nvkm_bar(parent);
  90         struct nv50_mpeg_chan *chan;
  91         int ret;
  92
  93         ret = nvkm_mpeg_context_create(parent, engine, oclass, NULL, 128 * 4,
  94                                        0, NVOBJ_FLAG_ZERO_ALLOC, &chan);
  95         *pobject = nv_object(chan);
  96         if (ret)
  97                 return ret;
  98
  99         nv_wo32(chan, 0x0070, 0x00801ec1);
 100         nv_wo32(chan, 0x007c, 0x0000037c);
 101         bar->flush(bar);
 102         return 0;
 103 }
 104
 105 static struct nvkm_oclass
 106 nv50_mpeg_cclass = {
 107         .handle = NV_ENGCTX(MPEG, 0x50),
 108         .ofuncs = &(struct nvkm_ofuncs) {
 109                 .ctor = nv50_mpeg_context_ctor,
 110                 .dtor = _nvkm_mpeg_context_dtor,
 111                 .init = _nvkm_mpeg_context_init,
 112                 .fini = _nvkm_mpeg_context_fini,
 113                 .rd32 = _nvkm_mpeg_context_rd32,
 114                 .wr32 = _nvkm_mpeg_context_wr32,
 115         },
 116 };
 117
 118 /*******************************************************************************
 119  * PMPEG engine/subdev functions
 120  ******************************************************************************/
 121
 122 void
 123 nv50_mpeg_intr(struct nvkm_subdev *subdev)
 124 {
 125         struct nv50_mpeg_priv *priv = (void *)subdev;
 126         u32 stat = nv_rd32(priv, 0x00b100);
 127         u32 type = nv_rd32(priv, 0x00b230);
 128         u32 mthd = nv_rd32(priv, 0x00b234);
 129         u32 data = nv_rd32(priv, 0x00b238);
 130         u32 show = stat;
 131
 132         if (stat & 0x01000000) {
 133                 /* happens on initial binding of the object */
 134                 if (type == 0x00000020 && mthd == 0x0000) {
 135                         nv_wr32(priv, 0x00b308, 0x00000100);
 136                         show &= ~0x01000000;
 137                 }
 138         }
 139
 140         if (show) {
 141                 nv_info(priv, "0x%08x 0x%08x 0x%08x 0x%08x\n",
 142                         stat, type, mthd, data);
 143         }
 144
 145         nv_wr32(priv, 0x00b100, stat);
 146         nv_wr32(priv, 0x00b230, 0x00000001);
 147 }
 148
 149 static void
 150 nv50_vpe_intr(struct nvkm_subdev *subdev)
 151 {
 152         struct nv50_mpeg_priv *priv = (void *)subdev;
 153
 154         if (nv_rd32(priv, 0x00b100))
 155                 nv50_mpeg_intr(subdev);
 156
 157         if (nv_rd32(priv, 0x00b800)) {
 158                 u32 stat = nv_rd32(priv, 0x00b800);
 159                 nv_info(priv, "PMSRCH: 0x%08x\n", stat);
 160                 nv_wr32(priv, 0xb800, stat);
 161         }
 162 }
 163
 164 static int
 165 nv50_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 166                struct nvkm_oclass *oclass, void *data, u32 size,
 167                struct nvkm_object **pobject)
 168 {
 169         struct nv50_mpeg_priv *priv;
 170         int ret;
 171
 172         ret = nvkm_mpeg_create(parent, engine, oclass, &priv);
 173         *pobject = nv_object(priv);
 174         if (ret)
 175                 return ret;
 176
 177         nv_subdev(priv)->unit = 0x00400002;
 178         nv_subdev(priv)->intr = nv50_vpe_intr;
 179         nv_engine(priv)->cclass = &nv50_mpeg_cclass;
 180         nv_engine(priv)->sclass = nv50_mpeg_sclass;
 181         return 0;
 182 }
 183
 184 int
 185 nv50_mpeg_init(struct nvkm_object *object)
 186 {
 187         struct nv50_mpeg_priv *priv = (void *)object;
 188         int ret;
 189
 190         ret = nvkm_mpeg_init(&priv->base);
 191         if (ret)
 192                 return ret;
 193
 194         nv_wr32(priv, 0x00b32c, 0x00000000);
 195         nv_wr32(priv, 0x00b314, 0x00000100);
 196         nv_wr32(priv, 0x00b0e0, 0x0000001a);
 197
 198         nv_wr32(priv, 0x00b220, 0x00000044);
 199         nv_wr32(priv, 0x00b300, 0x00801ec1);
 200         nv_wr32(priv, 0x00b390, 0x00000000);
 201         nv_wr32(priv, 0x00b394, 0x00000000);
 202         nv_wr32(priv, 0x00b398, 0x00000000);
 203         nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
 204
 205         nv_wr32(priv, 0x00b100, 0xffffffff);
 206         nv_wr32(priv, 0x00b140, 0xffffffff);
 207
 208         if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) {
 209                 nv_error(priv, "timeout 0x%08x\n", nv_rd32(priv, 0x00b200));
 210                 return -EBUSY;
 211         }
 212
 213         return 0;
 214 }
 215
 216 struct nvkm_oclass
 217 nv50_mpeg_oclass = {
 218         .handle = NV_ENGINE(MPEG, 0x50),
 219         .ofuncs = &(struct nvkm_ofuncs) {
 220                 .ctor = nv50_mpeg_ctor,
 221                 .dtor = _nvkm_mpeg_dtor,
 222                 .init = nv50_mpeg_init,
 223                 .fini = _nvkm_mpeg_fini,
 224         },
 225 };