1 /* 2 * Copyright 2015 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 <bskeggs@redhat.com> 23 */ 24 #include "nvsw.h" 25 #include "chan.h" 26 27 #include <nvif/class.h> 28 29 static int 30 nvkm_nvsw_mthd_(struct nvkm_object *object, u32 mthd, void *data, u32 size) 31 { 32 struct nvkm_nvsw *nvsw = nvkm_nvsw(object); 33 if (nvsw->func->mthd) 34 return nvsw->func->mthd(nvsw, mthd, data, size); 35 return -ENODEV; 36 } 37 38 static int 39 nvkm_nvsw_ntfy_(struct nvkm_object *object, u32 mthd, 40 struct nvkm_event **pevent) 41 { 42 struct nvkm_nvsw *nvsw = nvkm_nvsw(object); 43 switch (mthd) { 44 case NVSW_NTFY_UEVENT: 45 *pevent = &nvsw->chan->event; 46 return 0; 47 default: 48 break; 49 } 50 return -EINVAL; 51 } 52 53 static const struct nvkm_object_func 54 nvkm_nvsw_ = { 55 .mthd = nvkm_nvsw_mthd_, 56 .ntfy = nvkm_nvsw_ntfy_, 57 }; 58 59 int 60 nvkm_nvsw_new_(const struct nvkm_nvsw_func *func, struct nvkm_sw_chan *chan, 61 const struct nvkm_oclass *oclass, void *data, u32 size, 62 struct nvkm_object **pobject) 63 { 64 struct nvkm_nvsw *nvsw; 65 66 if (!(nvsw = kzalloc(sizeof(*nvsw), GFP_KERNEL))) 67 return -ENOMEM; 68 *pobject = &nvsw->object; 69 70 nvkm_object_ctor(&nvkm_nvsw_, oclass, &nvsw->object); 71 nvsw->func = func; 72 nvsw->chan = chan; 73 return 0; 74 } 75 76 static const struct nvkm_nvsw_func 77 nvkm_nvsw = { 78 }; 79 80 int 81 nvkm_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass, 82 void *data, u32 size, struct nvkm_object **pobject) 83 { 84 return nvkm_nvsw_new_(&nvkm_nvsw, chan, oclass, data, size, pobject); 85 } 86