LXR linux/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 <core/object.h>
  28#include <subdev/timer.h>
  29
  30#include <nvif/class.h>
  31
  32/*******************************************************************************
  33 * PMPEG context
  34 ******************************************************************************/
  35
  36static int
  37nv50_mpeg_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
  38                      int align, struct nvkm_gpuobj **pgpuobj)
  39{
  40        int ret = nvkm_gpuobj_new(object->engine->subdev.device, 128 * 4,
  41                                  align, true, parent, pgpuobj);
  42        if (ret == 0) {
  43                nvkm_kmap(*pgpuobj);
  44                nvkm_wo32(*pgpuobj, 0x70, 0x00801ec1);
  45                nvkm_wo32(*pgpuobj, 0x7c, 0x0000037c);
  46                nvkm_done(*pgpuobj);
  47        }
  48        return ret;
  49}
  50
  51const struct nvkm_object_func
  52nv50_mpeg_cclass = {
  53        .bind = nv50_mpeg_cclass_bind,
  54};
  55
  56/*******************************************************************************
  57 * PMPEG engine/subdev functions
  58 ******************************************************************************/
  59
  60void
  61nv50_mpeg_intr(struct nvkm_engine *mpeg)
  62{
  63        struct nvkm_subdev *subdev = &mpeg->subdev;
  64        struct nvkm_device *device = subdev->device;
  65        u32 stat = nvkm_rd32(device, 0x00b100);
  66        u32 type = nvkm_rd32(device, 0x00b230);
  67        u32 mthd = nvkm_rd32(device, 0x00b234);
  68        u32 data = nvkm_rd32(device, 0x00b238);
  69        u32 show = stat;
  70
  71        if (stat & 0x01000000) {
  72                /* happens on initial binding of the object */
  73                if (type == 0x00000020 && mthd == 0x0000) {
  74                        nvkm_wr32(device, 0x00b308, 0x00000100);
  75                        show &= ~0x01000000;
  76                }
  77        }
  78
  79        if (show) {
  80                nvkm_info(subdev, "%08x %08x %08x %08x\n",
  81                          stat, type, mthd, data);
  82        }
  83
  84        nvkm_wr32(device, 0x00b100, stat);
  85        nvkm_wr32(device, 0x00b230, 0x00000001);
  86}
  87
  88int
  89nv50_mpeg_init(struct nvkm_engine *mpeg)
  90{
  91        struct nvkm_subdev *subdev = &mpeg->subdev;
  92        struct nvkm_device *device = subdev->device;
  93
  94        nvkm_wr32(device, 0x00b32c, 0x00000000);
  95        nvkm_wr32(device, 0x00b314, 0x00000100);
  96        nvkm_wr32(device, 0x00b0e0, 0x0000001a);
  97
  98        nvkm_wr32(device, 0x00b220, 0x00000044);
  99        nvkm_wr32(device, 0x00b300, 0x00801ec1);
 100        nvkm_wr32(device, 0x00b390, 0x00000000);
 101        nvkm_wr32(device, 0x00b394, 0x00000000);
 102        nvkm_wr32(device, 0x00b398, 0x00000000);
 103        nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
 104
 105        nvkm_wr32(device, 0x00b100, 0xffffffff);
 106        nvkm_wr32(device, 0x00b140, 0xffffffff);
 107
 108        if (nvkm_msec(device, 2000,
 109                if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
 110                        break;
 111        ) < 0) {
 112                nvkm_error(subdev, "timeout %08x\n",
 113                           nvkm_rd32(device, 0x00b200));
 114                return -EBUSY;
 115        }
 116
 117        return 0;
 118}
 119
 120static const struct nvkm_engine_func
 121nv50_mpeg = {
 122        .init = nv50_mpeg_init,
 123        .intr = nv50_mpeg_intr,
 124        .cclass = &nv50_mpeg_cclass,
 125        .sclass = {
 126                { -1, -1, NV31_MPEG, &nv31_mpeg_object },
 127                {}
 128        }
 129};
 130
 131int
 132nv50_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg)
 133{
 134        return nvkm_engine_new_(&nv50_mpeg, device, index, true, pmpeg);
 135}
 136