| /* |
| * 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 "priv.h" |
| |
| #include <core/engine.h> |
| |
| /****************************************************************************** |
| * instmem object base implementation |
| *****************************************************************************/ |
| |
| void |
| _nvkm_instobj_dtor(struct nvkm_object *object) |
| { |
| struct nvkm_instmem *imem = nvkm_instmem(object); |
| struct nvkm_instobj *iobj = (void *)object; |
| |
| mutex_lock(&nv_subdev(imem)->mutex); |
| list_del(&iobj->head); |
| mutex_unlock(&nv_subdev(imem)->mutex); |
| |
| return nvkm_object_destroy(&iobj->object); |
| } |
| |
| int |
| nvkm_instobj_create_(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, int length, void **pobject) |
| { |
| struct nvkm_instmem *imem = nvkm_instmem(parent); |
| struct nvkm_instobj *iobj; |
| int ret; |
| |
| ret = nvkm_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS, |
| length, pobject); |
| iobj = *pobject; |
| if (ret) |
| return ret; |
| |
| mutex_lock(&imem->subdev.mutex); |
| list_add(&iobj->head, &imem->list); |
| mutex_unlock(&imem->subdev.mutex); |
| return 0; |
| } |
| |
| /****************************************************************************** |
| * instmem subdev base implementation |
| *****************************************************************************/ |
| |
| static int |
| nvkm_instmem_alloc(struct nvkm_instmem *imem, struct nvkm_object *parent, |
| u32 size, u32 align, struct nvkm_object **pobject) |
| { |
| struct nvkm_instmem_impl *impl = (void *)imem->subdev.object.oclass; |
| struct nvkm_instobj_args args = { .size = size, .align = align }; |
| return nvkm_object_ctor(parent, &parent->engine->subdev.object, |
| impl->instobj, &args, sizeof(args), pobject); |
| } |
| |
| int |
| _nvkm_instmem_fini(struct nvkm_object *object, bool suspend) |
| { |
| struct nvkm_instmem *imem = (void *)object; |
| struct nvkm_instobj *iobj; |
| int i, ret = 0; |
| |
| if (suspend) { |
| mutex_lock(&imem->subdev.mutex); |
| list_for_each_entry(iobj, &imem->list, head) { |
| iobj->suspend = vmalloc(iobj->size); |
| if (!iobj->suspend) { |
| ret = -ENOMEM; |
| break; |
| } |
| |
| for (i = 0; i < iobj->size; i += 4) { |
| nvkm_object_rd32(&iobj->object, i, (u32 *) |
| &iobj->suspend[i/4]); |
| } |
| } |
| mutex_unlock(&imem->subdev.mutex); |
| if (ret) |
| return ret; |
| } |
| |
| return nvkm_subdev_fini(&imem->subdev, suspend); |
| } |
| |
| int |
| _nvkm_instmem_init(struct nvkm_object *object) |
| { |
| struct nvkm_instmem *imem = (void *)object; |
| struct nvkm_instobj *iobj; |
| int ret, i; |
| |
| ret = nvkm_subdev_init(&imem->subdev); |
| if (ret) |
| return ret; |
| |
| mutex_lock(&imem->subdev.mutex); |
| list_for_each_entry(iobj, &imem->list, head) { |
| if (iobj->suspend) { |
| for (i = 0; i < iobj->size; i += 4) { |
| nvkm_object_wr32(&iobj->object, i, *(u32 *) |
| &iobj->suspend[i/4]); |
| } |
| vfree(iobj->suspend); |
| iobj->suspend = NULL; |
| } |
| } |
| mutex_unlock(&imem->subdev.mutex); |
| return 0; |
| } |
| |
| int |
| nvkm_instmem_create_(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, int length, void **pobject) |
| { |
| struct nvkm_instmem *imem; |
| int ret; |
| |
| ret = nvkm_subdev_create_(parent, engine, oclass, 0, "INSTMEM", |
| "instmem", length, pobject); |
| imem = *pobject; |
| if (ret) |
| return ret; |
| |
| INIT_LIST_HEAD(&imem->list); |
| imem->alloc = nvkm_instmem_alloc; |
| return 0; |
| } |