| /* |
| * 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/object.h> |
| #include <core/class.h> |
| |
| #include <subdev/fb.h> |
| #include <engine/dmaobj.h> |
| |
| static int |
| nouveau_dmaobj_ctor(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nouveau_dmaeng *dmaeng = (void *)engine; |
| struct nouveau_dmaobj *dmaobj; |
| struct nouveau_gpuobj *gpuobj; |
| struct nv_dma_class *args = data; |
| int ret; |
| |
| if (size < sizeof(*args)) |
| return -EINVAL; |
| |
| ret = nouveau_object_create(parent, engine, oclass, 0, &dmaobj); |
| *pobject = nv_object(dmaobj); |
| if (ret) |
| return ret; |
| |
| switch (args->flags & NV_DMA_TARGET_MASK) { |
| case NV_DMA_TARGET_VM: |
| dmaobj->target = NV_MEM_TARGET_VM; |
| break; |
| case NV_DMA_TARGET_VRAM: |
| dmaobj->target = NV_MEM_TARGET_VRAM; |
| break; |
| case NV_DMA_TARGET_PCI: |
| dmaobj->target = NV_MEM_TARGET_PCI; |
| break; |
| case NV_DMA_TARGET_PCI_US: |
| case NV_DMA_TARGET_AGP: |
| dmaobj->target = NV_MEM_TARGET_PCI_NOSNOOP; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| switch (args->flags & NV_DMA_ACCESS_MASK) { |
| case NV_DMA_ACCESS_VM: |
| dmaobj->access = NV_MEM_ACCESS_VM; |
| break; |
| case NV_DMA_ACCESS_RD: |
| dmaobj->access = NV_MEM_ACCESS_RO; |
| break; |
| case NV_DMA_ACCESS_WR: |
| dmaobj->access = NV_MEM_ACCESS_WO; |
| break; |
| case NV_DMA_ACCESS_RDWR: |
| dmaobj->access = NV_MEM_ACCESS_RW; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| dmaobj->start = args->start; |
| dmaobj->limit = args->limit; |
| dmaobj->conf0 = args->conf0; |
| |
| switch (nv_mclass(parent)) { |
| case NV_DEVICE_CLASS: |
| /* delayed, or no, binding */ |
| break; |
| default: |
| ret = dmaeng->bind(dmaeng, *pobject, dmaobj, &gpuobj); |
| if (ret == 0) { |
| nouveau_object_ref(NULL, pobject); |
| *pobject = nv_object(gpuobj); |
| } |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static struct nouveau_ofuncs |
| nouveau_dmaobj_ofuncs = { |
| .ctor = nouveau_dmaobj_ctor, |
| .dtor = nouveau_object_destroy, |
| .init = nouveau_object_init, |
| .fini = nouveau_object_fini, |
| }; |
| |
| struct nouveau_oclass |
| nouveau_dmaobj_sclass[] = { |
| { NV_DMA_FROM_MEMORY_CLASS, &nouveau_dmaobj_ofuncs }, |
| { NV_DMA_TO_MEMORY_CLASS, &nouveau_dmaobj_ofuncs }, |
| { NV_DMA_IN_MEMORY_CLASS, &nouveau_dmaobj_ofuncs }, |
| {} |
| }; |