| /* |
| * 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 <subdev/instmem.h> |
| |
| int |
| nouveau_instobj_create_(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, |
| int length, void **pobject) |
| { |
| struct nouveau_instmem *imem = (void *)engine; |
| struct nouveau_instobj *iobj; |
| int ret; |
| |
| ret = nouveau_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS, |
| length, pobject); |
| iobj = *pobject; |
| if (ret) |
| return ret; |
| |
| list_add(&iobj->head, &imem->list); |
| return 0; |
| } |
| |
| void |
| nouveau_instobj_destroy(struct nouveau_instobj *iobj) |
| { |
| if (iobj->head.prev) |
| list_del(&iobj->head); |
| return nouveau_object_destroy(&iobj->base); |
| } |
| |
| void |
| _nouveau_instobj_dtor(struct nouveau_object *object) |
| { |
| struct nouveau_instobj *iobj = (void *)object; |
| return nouveau_instobj_destroy(iobj); |
| } |
| |
| int |
| nouveau_instmem_create_(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, |
| int length, void **pobject) |
| { |
| struct nouveau_instmem *imem; |
| int ret; |
| |
| ret = nouveau_subdev_create_(parent, engine, oclass, 0, |
| "INSTMEM", "instmem", length, pobject); |
| imem = *pobject; |
| if (ret) |
| return ret; |
| |
| INIT_LIST_HEAD(&imem->list); |
| return 0; |
| } |
| |
| int |
| nouveau_instmem_init(struct nouveau_instmem *imem) |
| { |
| struct nouveau_instobj *iobj; |
| int ret, i; |
| |
| ret = nouveau_subdev_init(&imem->base); |
| if (ret) |
| return ret; |
| |
| list_for_each_entry(iobj, &imem->list, head) { |
| if (iobj->suspend) { |
| for (i = 0; i < iobj->size; i += 4) |
| nv_wo32(iobj, i, iobj->suspend[i / 4]); |
| vfree(iobj->suspend); |
| iobj->suspend = NULL; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int |
| nouveau_instmem_fini(struct nouveau_instmem *imem, bool suspend) |
| { |
| struct nouveau_instobj *iobj; |
| int i; |
| |
| if (suspend) { |
| list_for_each_entry(iobj, &imem->list, head) { |
| iobj->suspend = vmalloc(iobj->size); |
| if (iobj->suspend) { |
| for (i = 0; i < iobj->size; i += 4) |
| iobj->suspend[i / 4] = nv_ro32(iobj, i); |
| } else |
| return -ENOMEM; |
| } |
| } |
| |
| return nouveau_subdev_fini(&imem->base, suspend); |
| } |
| |
| int |
| _nouveau_instmem_init(struct nouveau_object *object) |
| { |
| struct nouveau_instmem *imem = (void *)object; |
| return nouveau_instmem_init(imem); |
| } |
| |
| int |
| _nouveau_instmem_fini(struct nouveau_object *object, bool suspend) |
| { |
| struct nouveau_instmem *imem = (void *)object; |
| return nouveau_instmem_fini(imem, suspend); |
| } |