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 <subdev/top.h> 25 #include <engine/falcon.h> 26 27 static int 28 nvkm_nvdec_oneinit(struct nvkm_engine *engine) 29 { 30 struct nvkm_nvdec *nvdec = nvkm_nvdec(engine); 31 struct nvkm_subdev *subdev = &nvdec->engine.subdev; 32 33 nvdec->addr = nvkm_top_addr(subdev->device, subdev->index); 34 if (!nvdec->addr) 35 return -EINVAL; 36 37 /*XXX: fix naming of this when adding support for multiple-NVDEC */ 38 return nvkm_falcon_v1_new(subdev, "NVDEC", nvdec->addr, 39 &nvdec->falcon); 40 } 41 42 static void * 43 nvkm_nvdec_dtor(struct nvkm_engine *engine) 44 { 45 struct nvkm_nvdec *nvdec = nvkm_nvdec(engine); 46 nvkm_falcon_del(&nvdec->falcon); 47 return nvdec; 48 } 49 50 static const struct nvkm_engine_func 51 nvkm_nvdec = { 52 .dtor = nvkm_nvdec_dtor, 53 .oneinit = nvkm_nvdec_oneinit, 54 }; 55 56 int 57 nvkm_nvdec_new_(struct nvkm_device *device, int index, 58 struct nvkm_nvdec **pnvdec) 59 { 60 struct nvkm_nvdec *nvdec; 61 62 if (!(nvdec = *pnvdec = kzalloc(sizeof(*nvdec), GFP_KERNEL))) 63 return -ENOMEM; 64 65 return nvkm_engine_ctor(&nvkm_nvdec, device, index, true, 66 &nvdec->engine); 67 }; 68