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 #include <core/firmware.h>
  24
  25 static void *
  26 nvkm_nvdec_dtor(struct nvkm_engine *engine)
  27 {
  28         struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
  29         nvkm_falcon_dtor(&nvdec->falcon);
  30         return nvdec;
  31 }
  32
  33 static const struct nvkm_engine_func
  34 nvkm_nvdec = {
  35         .dtor = nvkm_nvdec_dtor,
  36 };
  37
  38 int
  39 nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *device,
  40                 int index, struct nvkm_nvdec **pnvdec)
  41 {
  42         struct nvkm_nvdec *nvdec;
  43         int ret;
  44
  45         if (!(nvdec = *pnvdec = kzalloc(sizeof(*nvdec), GFP_KERNEL)))
  46                 return -ENOMEM;
  47
  48         ret = nvkm_engine_ctor(&nvkm_nvdec, device, index, true,
  49                                &nvdec->engine);
  50         if (ret)
  51                 return ret;
  52
  53         fwif = nvkm_firmware_load(&nvdec->engine.subdev, fwif, "Nvdec", nvdec);
  54         if (IS_ERR(fwif))
  55                 return -ENODEV;
  56
  57         nvdec->func = fwif->func;
  58
  59         return nvkm_falcon_ctor(nvdec->func->flcn, &nvdec->engine.subdev,
  60                                 nvkm_subdev_name[index], 0, &nvdec->falcon);
  61 };