1 /*
2 * Copyright 2012 Red Hat Inc.
3 *
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:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
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
18 * 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 OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
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
34 struct gf119_dmaobj {
35 struct nvkm_dmaobj base;
36 u32 flags0;
37 };
38
39 static int
gf119_dmaobj_bind(struct nvkm_dmaobj * base,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)40 gf119_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
62 static const struct nvkm_dmaobj_func
63 gf119_dmaobj_func = {
64 .bind = gf119_dmaobj_bind,
65 };
66
67 int
gf119_dmaobj_new(struct nvkm_dma * dma,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_dmaobj ** pdmaobj)68 gf119_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 } else
99 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 } else
108 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 one
122 * of these. we only use them to represent pushbufs
123 * on these chipsets, and the classes that use them
124 * deal with the target themselves.
125 */
126 break;
127 default:
128 return -EINVAL;
129 }
130
131 return 0;
132 }
133