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1/*2 * Copyright 2018 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#define gv100_dmaobj(p) container_of((p), struct gv100_dmaobj, base)23#include "user.h"24 25#include <core/client.h>26#include <core/gpuobj.h>27#include <subdev/fb.h>28 29#include <nvif/cl0002.h>30#include <nvif/unpack.h>31 32struct gv100_dmaobj {33 struct nvkm_dmaobj base;34 u32 flags0;35};36 37static int38gv100_dmaobj_bind(struct nvkm_dmaobj *base, struct nvkm_gpuobj *parent,39 int align, struct nvkm_gpuobj **pgpuobj)40{41 struct gv100_dmaobj *dmaobj = gv100_dmaobj(base);42 struct nvkm_device *device = dmaobj->base.dma->engine.subdev.device;43 u64 start = dmaobj->base.start >> 8;44 u64 limit = dmaobj->base.limit >> 8;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, lower_32_bits(start));52 nvkm_wo32(*pgpuobj, 0x08, upper_32_bits(start));53 nvkm_wo32(*pgpuobj, 0x0c, lower_32_bits(limit));54 nvkm_wo32(*pgpuobj, 0x10, upper_32_bits(limit));55 nvkm_done(*pgpuobj);56 }57 58 return ret;59}60 61static const struct nvkm_dmaobj_func62gv100_dmaobj_func = {63 .bind = gv100_dmaobj_bind,64};65 66int67gv100_dmaobj_new(struct nvkm_dma *dma, const struct nvkm_oclass *oclass,68 void *data, u32 size, struct nvkm_dmaobj **pdmaobj)69{70 union {71 struct gf119_dma_v0 v0;72 } *args;73 struct nvkm_object *parent = oclass->parent;74 struct gv100_dmaobj *dmaobj;75 u32 kind, page;76 int ret;77 78 if (!(dmaobj = kzalloc(sizeof(*dmaobj), GFP_KERNEL)))79 return -ENOMEM;80 *pdmaobj = &dmaobj->base;81 82 ret = nvkm_dmaobj_ctor(&gv100_dmaobj_func, dma, oclass,83 &data, &size, &dmaobj->base);84 if (ret)85 return ret;86 87 ret = -ENOSYS;88 args = data;89 90 nvif_ioctl(parent, "create gv100 dma size %d\n", size);91 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {92 nvif_ioctl(parent,93 "create gv100 dma vers %d page %d kind %02x\n",94 args->v0.version, args->v0.page, args->v0.kind);95 kind = args->v0.kind != 0;96 page = args->v0.page != 0;97 } else98 if (size == 0) {99 kind = 0;100 page = GF119_DMA_V0_PAGE_SP;101 } else102 return ret;103 104 if (kind)105 dmaobj->flags0 |= 0x00100000;106 if (page)107 dmaobj->flags0 |= 0x00000040;108 dmaobj->flags0 |= 0x00000004; /* rw */109 110 switch (dmaobj->base.target) {111 case NV_MEM_TARGET_VRAM : dmaobj->flags0 |= 0x00000001; break;112 case NV_MEM_TARGET_PCI : dmaobj->flags0 |= 0x00000002; break;113 case NV_MEM_TARGET_PCI_NOSNOOP: dmaobj->flags0 |= 0x00000003; break;114 default:115 return -EINVAL;116 }117 118 return 0;119}120