111 lines · c
1/*2 * Copyright 2018 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * 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 31static int32nvkm_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 46static int47nvkm_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 58static int59nvkm_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 66static int67nvkm_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 74static void *75nvkm_ufault_dtor(struct nvkm_object *object)76{77 return NULL;78}79 80static const struct nvkm_object_func81nvkm_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 89int90nvkm_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 } else105 return ret;106 107 nvkm_object_ctor(&nvkm_ufault, oclass, &buffer->object);108 *pobject = &buffer->object;109 return 0;110}111