1 /* 2 * Copyright 2018 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 #include "priv.h" 23 24 #include <core/memory.h> 25 #include <core/event.h> 26 #include <subdev/mmu.h> 27 28 #include <nvif/clb069.h> 29 #include <nvif/unpack.h> 30 31 static int 32 nvkm_ufault_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent) 33 { 34 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 35 union nvif_clb069_event_args *args = argv; 36 37 if (!uevent) 38 return 0; 39 if (argc != sizeof(args->vn)) 40 return -ENOSYS; 41 42 return nvkm_uevent_add(uevent, &buffer->fault->event, buffer->id, 43 NVKM_FAULT_BUFFER_EVENT_PENDING, NULL); 44 } 45 46 static int 47 nvkm_ufault_map(struct nvkm_object *object, void *argv, u32 argc, 48 enum nvkm_object_map *type, u64 *addr, u64 *size) 49 { 50 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 51 struct nvkm_device *device = buffer->fault->subdev.device; 52 *type = NVKM_OBJECT_MAP_IO; 53 *addr = device->func->resource_addr(device, 3) + buffer->addr; 54 *size = nvkm_memory_size(buffer->mem); 55 return 0; 56 } 57 58 static int 59 nvkm_ufault_fini(struct nvkm_object *object, bool suspend) 60 { 61 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 62 buffer->fault->func->buffer.fini(buffer); 63 return 0; 64 } 65 66 static int 67 nvkm_ufault_init(struct nvkm_object *object) 68 { 69 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 70 buffer->fault->func->buffer.init(buffer); 71 return 0; 72 } 73 74 static void * 75 nvkm_ufault_dtor(struct nvkm_object *object) 76 { 77 return NULL; 78 } 79 80 static const struct nvkm_object_func 81 nvkm_ufault = { 82 .dtor = nvkm_ufault_dtor, 83 .init = nvkm_ufault_init, 84 .fini = nvkm_ufault_fini, 85 .map = nvkm_ufault_map, 86 .uevent = nvkm_ufault_uevent, 87 }; 88 89 int 90 nvkm_ufault_new(struct nvkm_device *device, const struct nvkm_oclass *oclass, 91 void *argv, u32 argc, struct nvkm_object **pobject) 92 { 93 union { 94 struct nvif_clb069_v0 v0; 95 } *args = argv; 96 struct nvkm_fault *fault = device->fault; 97 struct nvkm_fault_buffer *buffer = fault->buffer[fault->func->user.rp]; 98 int ret = -ENOSYS; 99 100 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { 101 args->v0.entries = buffer->entries; 102 args->v0.get = buffer->get; 103 args->v0.put = buffer->put; 104 } else 105 return ret; 106 107 nvkm_object_ctor(&nvkm_ufault, oclass, &buffer->object); 108 *pobject = &buffer->object; 109 return 0; 110 } 111