| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| #include <core/subdev.h> |
| #include <core/device.h> |
| #include <core/option.h> |
| |
| struct nvkm_subdev * |
| nvkm_subdev(void *obj, int idx) |
| { |
| struct nvkm_object *object = nv_object(obj); |
| while (object && !nv_iclass(object, NV_SUBDEV_CLASS)) |
| object = object->parent; |
| if (object == NULL || !object->parent || nv_subidx(nv_subdev(object)) != idx) |
| object = nv_device(obj)->subdev[idx]; |
| return object ? nv_subdev(object) : NULL; |
| } |
| |
| void |
| nvkm_subdev_reset(struct nvkm_object *obj) |
| { |
| struct nvkm_subdev *subdev = container_of(obj, typeof(*subdev), object); |
| nvkm_trace(subdev, "resetting...\n"); |
| nv_ofuncs(subdev)->fini(&subdev->object, false); |
| nvkm_trace(subdev, "reset\n"); |
| } |
| |
| int |
| nvkm_subdev_init(struct nvkm_subdev *subdev) |
| { |
| int ret = nvkm_object_init(&subdev->object); |
| if (ret) |
| return ret; |
| |
| nvkm_subdev_reset(&subdev->object); |
| return 0; |
| } |
| |
| int |
| _nvkm_subdev_init(struct nvkm_object *object) |
| { |
| return nvkm_subdev_init(nv_subdev(object)); |
| } |
| |
| int |
| nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend) |
| { |
| struct nvkm_device *device = subdev->device; |
| |
| if (subdev->unit) { |
| nvkm_mask(device, 0x000200, subdev->unit, 0x00000000); |
| nvkm_mask(device, 0x000200, subdev->unit, subdev->unit); |
| } |
| |
| return nvkm_object_fini(&subdev->object, suspend); |
| } |
| |
| int |
| _nvkm_subdev_fini(struct nvkm_object *object, bool suspend) |
| { |
| return nvkm_subdev_fini(nv_subdev(object), suspend); |
| } |
| |
| void |
| nvkm_subdev_destroy(struct nvkm_subdev *subdev) |
| { |
| int subidx = nv_hclass(subdev) & 0xff; |
| nv_device(subdev)->subdev[subidx] = NULL; |
| nvkm_object_destroy(&subdev->object); |
| } |
| |
| void |
| _nvkm_subdev_dtor(struct nvkm_object *object) |
| { |
| nvkm_subdev_destroy(nv_subdev(object)); |
| } |
| |
| int |
| nvkm_subdev_create_(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, u32 pclass, |
| const char *subname, const char *sysname, |
| int size, void **pobject) |
| { |
| struct nvkm_subdev *subdev; |
| int ret; |
| |
| ret = nvkm_object_create_(parent, engine, oclass, pclass | |
| NV_SUBDEV_CLASS, size, pobject); |
| subdev = *pobject; |
| if (ret) |
| return ret; |
| |
| __mutex_init(&subdev->mutex, subname, &oclass->lock_class_key); |
| subdev->name = subname; |
| subdev->sname = sysname; |
| |
| if (parent) { |
| struct nvkm_device *device = nv_device(parent); |
| subdev->debug = nvkm_dbgopt(device->dbgopt, subname); |
| subdev->device = device; |
| } else { |
| subdev->device = nv_device(subdev); |
| } |
| |
| return 0; |
| } |