1 /* 2 * Copyright 2021 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 #define nvkm_uvfn(p) container_of((p), struct nvkm_uvfn, object) 23 #include "priv.h" 24 25 #include <core/object.h> 26 27 struct nvkm_uvfn { 28 struct nvkm_object object; 29 struct nvkm_vfn *vfn; 30 }; 31 32 static int nvkm_uvfn_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,u64 * addr,u64 * size)33 nvkm_uvfn_map(struct nvkm_object *object, void *argv, u32 argc, 34 enum nvkm_object_map *type, u64 *addr, u64 *size) 35 { 36 struct nvkm_vfn *vfn = nvkm_uvfn(object)->vfn; 37 struct nvkm_device *device = vfn->subdev.device; 38 39 *addr = device->func->resource_addr(device, 0) + vfn->addr.user; 40 *size = vfn->func->user.size; 41 *type = NVKM_OBJECT_MAP_IO; 42 return 0; 43 } 44 45 static const struct nvkm_object_func 46 nvkm_uvfn = { 47 .map = nvkm_uvfn_map, 48 }; 49 50 int nvkm_uvfn_new(struct nvkm_device * device,const struct nvkm_oclass * oclass,void * argv,u32 argc,struct nvkm_object ** pobject)51 nvkm_uvfn_new(struct nvkm_device *device, const struct nvkm_oclass *oclass, 52 void *argv, u32 argc, struct nvkm_object **pobject) 53 { 54 struct nvkm_uvfn *uvfn; 55 56 if (argc != 0) 57 return -ENOSYS; 58 59 if (!(uvfn = kzalloc(sizeof(*uvfn), GFP_KERNEL))) 60 return -ENOMEM; 61 62 nvkm_object_ctor(&nvkm_uvfn, oclass, &uvfn->object); 63 uvfn->vfn = device->vfn; 64 65 *pobject = &uvfn->object; 66 return 0; 67 } 68