2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
26 #include <core/client.h>
27 #include <core/gpuobj.h>
28 #include <subdev/fb.h>
29 #include <subdev/instmem.h>
31 #include <nvif/cl0002.h>
32 #include <nvif/unpack.h>
35 nvkm_dmaobj_bind(struct nvkm_object *base, struct nvkm_gpuobj *gpuobj,
36 int align, struct nvkm_gpuobj **pgpuobj)
38 struct nvkm_dmaobj *dmaobj = nvkm_dmaobj(base);
39 return dmaobj->func->bind(dmaobj, gpuobj, align, pgpuobj);
43 nvkm_dmaobj_dtor(struct nvkm_object *base)
45 struct nvkm_dmaobj *dmaobj = nvkm_dmaobj(base);
46 if (!RB_EMPTY_NODE(&dmaobj->rb))
47 rb_erase(&dmaobj->rb, &dmaobj->object.client->dmaroot);
51 static const struct nvkm_object_func
53 .dtor = nvkm_dmaobj_dtor,
54 .bind = nvkm_dmaobj_bind,
58 nvkm_dmaobj_ctor(const struct nvkm_dmaobj_func *func, struct nvkm_dma *dma,
59 const struct nvkm_oclass *oclass, void **pdata, u32 *psize,
60 struct nvkm_dmaobj *dmaobj)
65 struct nvkm_device *device = dma->engine.subdev.device;
66 struct nvkm_client *client = oclass->client;
67 struct nvkm_object *parent = oclass->parent;
68 struct nvkm_instmem *instmem = device->imem;
69 struct nvkm_fb *fb = device->fb;
74 nvkm_object_ctor(&nvkm_dmaobj_func, oclass, &dmaobj->object);
77 RB_CLEAR_NODE(&dmaobj->rb);
79 nvif_ioctl(parent, "create dma size %d\n", *psize);
80 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
81 nvif_ioctl(parent, "create dma vers %d target %d access %d "
82 "start %016llx limit %016llx\n",
83 args->v0.version, args->v0.target, args->v0.access,
84 args->v0.start, args->v0.limit);
85 dmaobj->target = args->v0.target;
86 dmaobj->access = args->v0.access;
87 dmaobj->start = args->v0.start;
88 dmaobj->limit = args->v0.limit;
95 if (dmaobj->start > dmaobj->limit)
98 switch (dmaobj->target) {
99 case NV_DMA_V0_TARGET_VM:
100 dmaobj->target = NV_MEM_TARGET_VM;
102 case NV_DMA_V0_TARGET_VRAM:
103 if (!client->super) {
104 if (dmaobj->limit >= fb->ram->size - instmem->reserved)
106 if (device->card_type >= NV_50)
109 dmaobj->target = NV_MEM_TARGET_VRAM;
111 case NV_DMA_V0_TARGET_PCI:
114 dmaobj->target = NV_MEM_TARGET_PCI;
116 case NV_DMA_V0_TARGET_PCI_US:
117 case NV_DMA_V0_TARGET_AGP:
120 dmaobj->target = NV_MEM_TARGET_PCI_NOSNOOP;
126 switch (dmaobj->access) {
127 case NV_DMA_V0_ACCESS_VM:
128 dmaobj->access = NV_MEM_ACCESS_VM;
130 case NV_DMA_V0_ACCESS_RD:
131 dmaobj->access = NV_MEM_ACCESS_RO;
133 case NV_DMA_V0_ACCESS_WR:
134 dmaobj->access = NV_MEM_ACCESS_WO;
136 case NV_DMA_V0_ACCESS_RDWR:
137 dmaobj->access = NV_MEM_ACCESS_RW;