| /* |
| * 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/parent.h> |
| #include <core/client.h> |
| #include <core/engine.h> |
| |
| #include <nvif/ioctl.h> |
| |
| int |
| nvkm_parent_sclass(struct nvkm_object *parent, s32 handle, |
| struct nvkm_object **pengine, |
| struct nvkm_oclass **poclass) |
| { |
| struct nvkm_oclass *sclass, *oclass; |
| struct nvkm_engine *engine; |
| u64 mask; |
| int i; |
| |
| sclass = nv_parent(parent)->sclass; |
| while ((oclass = sclass++) && oclass->ofuncs) { |
| if (oclass->handle == handle) { |
| *pengine = &parent->engine->subdev.object; |
| *poclass = oclass; |
| return 0; |
| } |
| } |
| |
| mask = nv_parent(parent)->engine; |
| while (i = __ffs64(mask), mask) { |
| engine = nvkm_engine(parent, i); |
| if (engine) { |
| oclass = engine->sclass; |
| while (oclass->ofuncs) { |
| if (oclass->handle == handle) { |
| *pengine = nv_object(engine); |
| *poclass = oclass; |
| return 0; |
| } |
| oclass++; |
| } |
| } |
| |
| mask &= ~(1ULL << i); |
| } |
| |
| return -EINVAL; |
| } |
| |
| int |
| nvkm_parent_lclass(struct nvkm_object *parent, void *data, int size) |
| { |
| struct nvif_ioctl_sclass_oclass_v0 *lclass = data; |
| struct nvkm_oclass *sclass, *oclass; |
| struct nvkm_engine *engine; |
| int nr = -1, i; |
| u64 mask; |
| |
| sclass = nv_parent(parent)->sclass; |
| while ((oclass = sclass++) && oclass->ofuncs) { |
| if (++nr < size) { |
| lclass[nr].oclass = oclass->handle; |
| lclass[nr].minver = -2; |
| lclass[nr].maxver = -2; |
| } |
| } |
| |
| mask = nv_parent(parent)->engine; |
| while (i = __ffs64(mask), mask) { |
| engine = nvkm_engine(parent, i); |
| if (engine && (oclass = engine->sclass)) { |
| while (oclass->ofuncs) { |
| if (++nr < size) { |
| lclass[nr].oclass = oclass->handle; |
| lclass[nr].minver = -2; |
| lclass[nr].maxver = -2; |
| } |
| oclass++; |
| } |
| } |
| |
| mask &= ~(1ULL << i); |
| } |
| |
| return nr + 1; |
| } |
| |
| int |
| nvkm_parent_create_(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, u32 pclass, |
| struct nvkm_oclass *sclass, u64 engcls, |
| int size, void **pobject) |
| { |
| struct nvkm_parent *object; |
| int ret; |
| |
| ret = nvkm_object_create_(parent, engine, oclass, pclass | |
| NV_PARENT_CLASS, size, pobject); |
| object = *pobject; |
| if (ret) |
| return ret; |
| |
| object->sclass = sclass; |
| object->engine = engcls; |
| return 0; |
| } |
| |
| void |
| nvkm_parent_destroy(struct nvkm_parent *parent) |
| { |
| nvkm_object_destroy(&parent->object); |
| } |
| |
| |
| void |
| _nvkm_parent_dtor(struct nvkm_object *object) |
| { |
| nvkm_parent_destroy(nv_parent(object)); |
| } |