drivers/gpu/drm/nouveau/nvkm/engine/nvdec/base.c

   1 /*
   2  * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
   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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22 #include "priv.h"
  23
  24 #include <engine/falcon.h>
  25
  26 static int
  27 nvkm_nvdec_oneinit(struct nvkm_engine *engine)
  28 {
  29         struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
  30         return nvkm_falcon_v1_new(&nvdec->engine.subdev, "NVDEC", 0x84000,
  31                                   &nvdec->falcon);
  32 }
  33
  34 static void *
  35 nvkm_nvdec_dtor(struct nvkm_engine *engine)
  36 {
  37         struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
  38         nvkm_falcon_del(&nvdec->falcon);
  39         return nvdec;
  40 }
  41
  42 static const struct nvkm_engine_func
  43 nvkm_nvdec = {
  44         .dtor = nvkm_nvdec_dtor,
  45         .oneinit = nvkm_nvdec_oneinit,
  46 };
  47
  48 int
  49 nvkm_nvdec_new_(struct nvkm_device *device, int index,
  50                 struct nvkm_nvdec **pnvdec)
  51 {
  52         struct nvkm_nvdec *nvdec;
  53
  54         if (!(nvdec = *pnvdec = kzalloc(sizeof(*nvdec), GFP_KERNEL)))
  55                 return -ENOMEM;
  56
  57         return nvkm_engine_ctor(&nvkm_nvdec, device, index, true,
  58                                 &nvdec->engine);
  59 };