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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#define gf119_dmaobj(p) container_of((p), struct gf119_dmaobj, base)25#include "user.h"26 27#include <core/client.h>28#include <core/gpuobj.h>29#include <subdev/fb.h>30 31#include <nvif/cl0002.h>32#include <nvif/unpack.h>33 34struct gf119_dmaobj {35 struct nvkm_dmaobj base;36 u32 flags0;37};38 39static int40gf119_dmaobj_bind(struct nvkm_dmaobj *base, struct nvkm_gpuobj *parent,41 int align, struct nvkm_gpuobj **pgpuobj)42{43 struct gf119_dmaobj *dmaobj = gf119_dmaobj(base);44 struct nvkm_device *device = dmaobj->base.dma->engine.subdev.device;45 int ret;46 47 ret = nvkm_gpuobj_new(device, 24, align, false, parent, pgpuobj);48 if (ret == 0) {49 nvkm_kmap(*pgpuobj);50 nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0);51 nvkm_wo32(*pgpuobj, 0x04, dmaobj->base.start >> 8);52 nvkm_wo32(*pgpuobj, 0x08, dmaobj->base.limit >> 8);53 nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);54 nvkm_wo32(*pgpuobj, 0x10, 0x00000000);55 nvkm_wo32(*pgpuobj, 0x14, 0x00000000);56 nvkm_done(*pgpuobj);57 }58 59 return ret;60}61 62static const struct nvkm_dmaobj_func63gf119_dmaobj_func = {64 .bind = gf119_dmaobj_bind,65};66 67int68gf119_dmaobj_new(struct nvkm_dma *dma, const struct nvkm_oclass *oclass,69 void *data, u32 size, struct nvkm_dmaobj **pdmaobj)70{71 union {72 struct gf119_dma_v0 v0;73 } *args;74 struct nvkm_object *parent = oclass->parent;75 struct gf119_dmaobj *dmaobj;76 u32 kind, page;77 int ret;78 79 if (!(dmaobj = kzalloc(sizeof(*dmaobj), GFP_KERNEL)))80 return -ENOMEM;81 *pdmaobj = &dmaobj->base;82 83 ret = nvkm_dmaobj_ctor(&gf119_dmaobj_func, dma, oclass,84 &data, &size, &dmaobj->base);85 if (ret)86 return ret;87 88 ret = -ENOSYS;89 args = data;90 91 nvif_ioctl(parent, "create gf119 dma size %d\n", size);92 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {93 nvif_ioctl(parent,94 "create gf100 dma vers %d page %d kind %02x\n",95 args->v0.version, args->v0.page, args->v0.kind);96 kind = args->v0.kind;97 page = args->v0.page;98 } else99 if (size == 0) {100 if (dmaobj->base.target != NV_MEM_TARGET_VM) {101 kind = GF119_DMA_V0_KIND_PITCH;102 page = GF119_DMA_V0_PAGE_SP;103 } else {104 kind = GF119_DMA_V0_KIND_VM;105 page = GF119_DMA_V0_PAGE_LP;106 }107 } else108 return ret;109 110 if (page > 1)111 return -EINVAL;112 dmaobj->flags0 = (kind << 20) | (page << 6);113 114 switch (dmaobj->base.target) {115 case NV_MEM_TARGET_VRAM:116 dmaobj->flags0 |= 0x00000009;117 break;118 case NV_MEM_TARGET_VM:119 case NV_MEM_TARGET_PCI:120 case NV_MEM_TARGET_PCI_NOSNOOP:121 /* XXX: don't currently know how to construct a real one122 * of these. we only use them to represent pushbufs123 * on these chipsets, and the classes that use them124 * deal with the target themselves.125 */126 break;127 default:128 return -EINVAL;129 }130 131 return 0;132}133