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 <subdev/mmu.h> 26 27 #include <nvif/clb069.h> 28 #include <nvif/unpack.h> 29 30 static int 31 nvkm_ufault_map(struct nvkm_object *object, void *argv, u32 argc, 32 enum nvkm_object_map *type, u64 *addr, u64 *size) 33 { 34 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 35 struct nvkm_device *device = buffer->fault->subdev.device; 36 *type = NVKM_OBJECT_MAP_IO; 37 *addr = device->func->resource_addr(device, 3) + buffer->addr; 38 *size = nvkm_memory_size(buffer->mem); 39 return 0; 40 } 41 42 static int 43 nvkm_ufault_ntfy(struct nvkm_object *object, u32 type, 44 struct nvkm_event **pevent) 45 { 46 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 47 if (type == NVB069_V0_NTFY_FAULT) { 48 *pevent = &buffer->fault->event; 49 return 0; 50 } 51 return -EINVAL; 52 } 53 54 static int 55 nvkm_ufault_fini(struct nvkm_object *object, bool suspend) 56 { 57 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 58 buffer->fault->func->buffer.fini(buffer); 59 return 0; 60 } 61 62 static int 63 nvkm_ufault_init(struct nvkm_object *object) 64 { 65 struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); 66 buffer->fault->func->buffer.init(buffer); 67 return 0; 68 } 69 70 static void * 71 nvkm_ufault_dtor(struct nvkm_object *object) 72 { 73 return NULL; 74 } 75 76 static const struct nvkm_object_func 77 nvkm_ufault = { 78 .dtor = nvkm_ufault_dtor, 79 .init = nvkm_ufault_init, 80 .fini = nvkm_ufault_fini, 81 .ntfy = nvkm_ufault_ntfy, 82 .map = nvkm_ufault_map, 83 }; 84 85 int 86 nvkm_ufault_new(struct nvkm_device *device, const struct nvkm_oclass *oclass, 87 void *argv, u32 argc, struct nvkm_object **pobject) 88 { 89 union { 90 struct nvif_clb069_v0 v0; 91 } *args = argv; 92 struct nvkm_fault *fault = device->fault; 93 struct nvkm_fault_buffer *buffer = fault->buffer[fault->func->user.rp]; 94 int ret = -ENOSYS; 95 96 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { 97 args->v0.entries = buffer->entries; 98 args->v0.get = buffer->get; 99 args->v0.put = buffer->put; 100 } else 101 return ret; 102 103 nvkm_object_ctor(&nvkm_ufault, oclass, &buffer->object); 104 *pobject = &buffer->object; 105 return 0; 106 } 107