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 "priv.h"
  25
  26 #include <core/gpuobj.h>
  27 #include <subdev/timer.h>
  28
  29 #include <nvif/class.h>
  30
  31 /*******************************************************************************
  32  * PMPEG context
  33  ******************************************************************************/
  34
  35 static int
  36 nv50_mpeg_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
  37                       int align, struct nvkm_gpuobj **pgpuobj)
  38 {
  39         int ret = nvkm_gpuobj_new(object->engine->subdev.device, 128 * 4,
  40                                   align, true, parent, pgpuobj);
  41         if (ret == 0) {
  42                 nvkm_kmap(*pgpuobj);
  43                 nvkm_wo32(*pgpuobj, 0x70, 0x00801ec1);
  44                 nvkm_wo32(*pgpuobj, 0x7c, 0x0000037c);
  45                 nvkm_done(*pgpuobj);
  46         }
  47         return ret;
  48 }
  49
  50 const struct nvkm_object_func
  51 nv50_mpeg_cclass = {
  52         .bind = nv50_mpeg_cclass_bind,
  53 };
  54
  55 /*******************************************************************************
  56  * PMPEG engine/subdev functions
  57  ******************************************************************************/
  58
  59 void
  60 nv50_mpeg_intr(struct nvkm_engine *mpeg)
  61 {
  62         struct nvkm_subdev *subdev = &mpeg->subdev;
  63         struct nvkm_device *device = subdev->device;
  64         u32 stat = nvkm_rd32(device, 0x00b100);
  65         u32 type = nvkm_rd32(device, 0x00b230);
  66         u32 mthd = nvkm_rd32(device, 0x00b234);
  67         u32 data = nvkm_rd32(device, 0x00b238);
  68         u32 show = stat;
  69
  70         if (stat & 0x01000000) {
  71                 /* happens on initial binding of the object */
  72                 if (type == 0x00000020 && mthd == 0x0000) {
  73                         nvkm_wr32(device, 0x00b308, 0x00000100);
  74                         show &= ~0x01000000;
  75                 }
  76         }
  77
  78         if (show) {
  79                 nvkm_info(subdev, "%08x %08x %08x %08x\n",
  80                           stat, type, mthd, data);
  81         }
  82
  83         nvkm_wr32(device, 0x00b100, stat);
  84         nvkm_wr32(device, 0x00b230, 0x00000001);
  85 }
  86
  87 int
  88 nv50_mpeg_init(struct nvkm_engine *mpeg)
  89 {
  90         struct nvkm_subdev *subdev = &mpeg->subdev;
  91         struct nvkm_device *device = subdev->device;
  92
  93         nvkm_wr32(device, 0x00b32c, 0x00000000);
  94         nvkm_wr32(device, 0x00b314, 0x00000100);
  95         nvkm_wr32(device, 0x00b0e0, 0x0000001a);
  96
  97         nvkm_wr32(device, 0x00b220, 0x00000044);
  98         nvkm_wr32(device, 0x00b300, 0x00801ec1);
  99         nvkm_wr32(device, 0x00b390, 0x00000000);
 100         nvkm_wr32(device, 0x00b394, 0x00000000);
 101         nvkm_wr32(device, 0x00b398, 0x00000000);
 102         nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
 103
 104         nvkm_wr32(device, 0x00b100, 0xffffffff);
 105         nvkm_wr32(device, 0x00b140, 0xffffffff);
 106
 107         if (nvkm_msec(device, 2000,
 108                 if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
 109                         break;
 110         ) < 0) {
 111                 nvkm_error(subdev, "timeout %08x\n",
 112                            nvkm_rd32(device, 0x00b200));
 113                 return -EBUSY;
 114         }
 115
 116         return 0;
 117 }
 118
 119 static const struct nvkm_engine_func
 120 nv50_mpeg = {
 121         .init = nv50_mpeg_init,
 122         .intr = nv50_mpeg_intr,
 123         .cclass = &nv50_mpeg_cclass,
 124         .sclass = {
 125                 { -1, -1, NV31_MPEG, &nv31_mpeg_object },
 126                 {}
 127         }
 128 };
 129
 130 int
 131 nv50_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg)
 132 {
 133         return nvkm_engine_new_(&nv50_mpeg, device, index, 0x00400002,
 134                                 true, pmpeg);
 135 }