drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.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
  29 #include <subdev/fb.h>
  30 #include <subdev/timer.h>
  31 #include <subdev/instmem.h>
  32
  33 #include <engine/mpeg.h>
  34 #include <engine/graph/nv40.h>
  35
  36 struct nv40_mpeg_priv {
  37         struct nouveau_mpeg base;
  38 };
  39
  40 struct nv40_mpeg_chan {
  41         struct nouveau_mpeg base;
  42 };
  43
  44 /*******************************************************************************
  45  * PMPEG context
  46  ******************************************************************************/
  47
  48 static int
  49 nv40_mpeg_context_ctor(struct nouveau_object *parent,
  50                        struct nouveau_object *engine,
  51                        struct nouveau_oclass *oclass, void *data, u32 size,
  52                        struct nouveau_object **pobject)
  53 {
  54         struct nv40_mpeg_chan *chan;
  55         int ret;
  56
  57         ret = nouveau_mpeg_context_create(parent, engine, oclass, NULL,
  58                                           264 * 4, 16,
  59                                           NVOBJ_FLAG_ZERO_ALLOC, &chan);
  60         *pobject = nv_object(chan);
  61         if (ret)
  62                 return ret;
  63
  64         return 0;
  65 }
  66
  67 static int
  68 nv40_mpeg_context_fini(struct nouveau_object *object, bool suspend)
  69 {
  70
  71         struct nv40_mpeg_priv *priv = (void *)object->engine;
  72         struct nv40_mpeg_chan *chan = (void *)object;
  73         u32 inst = 0x80000000 | nv_gpuobj(chan)->addr >> 4;
  74
  75         nv_mask(priv, 0x00b32c, 0x00000001, 0x00000000);
  76         if (nv_rd32(priv, 0x00b318) == inst)
  77                 nv_mask(priv, 0x00b318, 0x80000000, 0x00000000);
  78         nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
  79         return 0;
  80 }
  81
  82 static struct nouveau_oclass
  83 nv40_mpeg_cclass = {
  84         .handle = NV_ENGCTX(MPEG, 0x40),
  85         .ofuncs = &(struct nouveau_ofuncs) {
  86                 .ctor = nv40_mpeg_context_ctor,
  87                 .dtor = _nouveau_mpeg_context_dtor,
  88                 .init = _nouveau_mpeg_context_init,
  89                 .fini = nv40_mpeg_context_fini,
  90                 .rd32 = _nouveau_mpeg_context_rd32,
  91                 .wr32 = _nouveau_mpeg_context_wr32,
  92         },
  93 };
  94
  95 /*******************************************************************************
  96  * PMPEG engine/subdev functions
  97  ******************************************************************************/
  98
  99 static void
 100 nv40_mpeg_intr(struct nouveau_subdev *subdev)
 101 {
 102         struct nv40_mpeg_priv *priv = (void *)subdev;
 103         u32 stat;
 104
 105         if ((stat = nv_rd32(priv, 0x00b100)))
 106                 nv31_mpeg_intr(subdev);
 107
 108         if ((stat = nv_rd32(priv, 0x00b800))) {
 109                 nv_error(priv, "PMSRCH 0x%08x\n", stat);
 110                 nv_wr32(priv, 0x00b800, stat);
 111         }
 112 }
 113
 114 static int
 115 nv40_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 116                struct nouveau_oclass *oclass, void *data, u32 size,
 117                struct nouveau_object **pobject)
 118 {
 119         struct nv40_mpeg_priv *priv;
 120         int ret;
 121
 122         ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
 123         *pobject = nv_object(priv);
 124         if (ret)
 125                 return ret;
 126
 127         nv_subdev(priv)->unit = 0x00000002;
 128         nv_subdev(priv)->intr = nv40_mpeg_intr;
 129         nv_engine(priv)->cclass = &nv40_mpeg_cclass;
 130         nv_engine(priv)->sclass = nv31_mpeg_sclass;
 131         nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
 132         return 0;
 133 }
 134
 135 struct nouveau_oclass
 136 nv40_mpeg_oclass = {
 137         .handle = NV_ENGINE(MPEG, 0x40),
 138         .ofuncs = &(struct nouveau_ofuncs) {
 139                 .ctor = nv40_mpeg_ctor,
 140                 .dtor = _nouveau_mpeg_dtor,
 141                 .init = nv31_mpeg_init,
 142                 .fini = _nouveau_mpeg_fini,
 143         },
 144 };