Kernel bump from 4.1.3-rt to 4.1.7-rt.
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / instmem / nv04.c
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 #include "nv04.h"
25
26 #include <core/ramht.h>
27
28 /******************************************************************************
29  * instmem object implementation
30  *****************************************************************************/
31
32 static u32
33 nv04_instobj_rd32(struct nvkm_object *object, u64 addr)
34 {
35         struct nv04_instmem_priv *priv = (void *)nvkm_instmem(object);
36         struct nv04_instobj_priv *node = (void *)object;
37         return nv_ro32(priv, node->mem->offset + addr);
38 }
39
40 static void
41 nv04_instobj_wr32(struct nvkm_object *object, u64 addr, u32 data)
42 {
43         struct nv04_instmem_priv *priv = (void *)nvkm_instmem(object);
44         struct nv04_instobj_priv *node = (void *)object;
45         nv_wo32(priv, node->mem->offset + addr, data);
46 }
47
48 static void
49 nv04_instobj_dtor(struct nvkm_object *object)
50 {
51         struct nv04_instmem_priv *priv = (void *)nvkm_instmem(object);
52         struct nv04_instobj_priv *node = (void *)object;
53         struct nvkm_subdev *subdev = (void *)priv;
54
55         mutex_lock(&subdev->mutex);
56         nvkm_mm_free(&priv->heap, &node->mem);
57         mutex_unlock(&subdev->mutex);
58
59         nvkm_instobj_destroy(&node->base);
60 }
61
62 static int
63 nv04_instobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
64                   struct nvkm_oclass *oclass, void *data, u32 size,
65                   struct nvkm_object **pobject)
66 {
67         struct nv04_instmem_priv *priv = (void *)nvkm_instmem(parent);
68         struct nv04_instobj_priv *node;
69         struct nvkm_instobj_args *args = data;
70         struct nvkm_subdev *subdev = (void *)priv;
71         int ret;
72
73         if (!args->align)
74                 args->align = 1;
75
76         ret = nvkm_instobj_create(parent, engine, oclass, &node);
77         *pobject = nv_object(node);
78         if (ret)
79                 return ret;
80
81         mutex_lock(&subdev->mutex);
82         ret = nvkm_mm_head(&priv->heap, 0, 1, args->size, args->size,
83                            args->align, &node->mem);
84         mutex_unlock(&subdev->mutex);
85         if (ret)
86                 return ret;
87
88         node->base.addr = node->mem->offset;
89         node->base.size = node->mem->length;
90         return 0;
91 }
92
93 struct nvkm_instobj_impl
94 nv04_instobj_oclass = {
95         .base.ofuncs = &(struct nvkm_ofuncs) {
96                 .ctor = nv04_instobj_ctor,
97                 .dtor = nv04_instobj_dtor,
98                 .init = _nvkm_instobj_init,
99                 .fini = _nvkm_instobj_fini,
100                 .rd32 = nv04_instobj_rd32,
101                 .wr32 = nv04_instobj_wr32,
102         },
103 };
104
105 /******************************************************************************
106  * instmem subdev implementation
107  *****************************************************************************/
108
109 static u32
110 nv04_instmem_rd32(struct nvkm_object *object, u64 addr)
111 {
112         return nv_rd32(object, 0x700000 + addr);
113 }
114
115 static void
116 nv04_instmem_wr32(struct nvkm_object *object, u64 addr, u32 data)
117 {
118         return nv_wr32(object, 0x700000 + addr, data);
119 }
120
121 void
122 nv04_instmem_dtor(struct nvkm_object *object)
123 {
124         struct nv04_instmem_priv *priv = (void *)object;
125         nvkm_gpuobj_ref(NULL, &priv->ramfc);
126         nvkm_gpuobj_ref(NULL, &priv->ramro);
127         nvkm_ramht_ref(NULL, &priv->ramht);
128         nvkm_gpuobj_ref(NULL, &priv->vbios);
129         nvkm_mm_fini(&priv->heap);
130         if (priv->iomem)
131                 iounmap(priv->iomem);
132         nvkm_instmem_destroy(&priv->base);
133 }
134
135 static int
136 nv04_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
137                   struct nvkm_oclass *oclass, void *data, u32 size,
138                   struct nvkm_object **pobject)
139 {
140         struct nv04_instmem_priv *priv;
141         int ret;
142
143         ret = nvkm_instmem_create(parent, engine, oclass, &priv);
144         *pobject = nv_object(priv);
145         if (ret)
146                 return ret;
147
148         /* PRAMIN aperture maps over the end of VRAM, reserve it */
149         priv->base.reserved = 512 * 1024;
150
151         ret = nvkm_mm_init(&priv->heap, 0, priv->base.reserved, 1);
152         if (ret)
153                 return ret;
154
155         /* 0x00000-0x10000: reserve for probable vbios image */
156         ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x10000, 0, 0,
157                               &priv->vbios);
158         if (ret)
159                 return ret;
160
161         /* 0x10000-0x18000: reserve for RAMHT */
162         ret = nvkm_ramht_new(nv_object(priv), NULL, 0x08000, 0, &priv->ramht);
163         if (ret)
164                 return ret;
165
166         /* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */
167         ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x00800, 0,
168                               NVOBJ_FLAG_ZERO_ALLOC, &priv->ramfc);
169         if (ret)
170                 return ret;
171
172         /* 0x18800-0x18a00: reserve for RAMRO */
173         ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x00200, 0, 0,
174                               &priv->ramro);
175         if (ret)
176                 return ret;
177
178         return 0;
179 }
180
181 struct nvkm_oclass *
182 nv04_instmem_oclass = &(struct nvkm_instmem_impl) {
183         .base.handle = NV_SUBDEV(INSTMEM, 0x04),
184         .base.ofuncs = &(struct nvkm_ofuncs) {
185                 .ctor = nv04_instmem_ctor,
186                 .dtor = nv04_instmem_dtor,
187                 .init = _nvkm_instmem_init,
188                 .fini = _nvkm_instmem_fini,
189                 .rd32 = nv04_instmem_rd32,
190                 .wr32 = nv04_instmem_wr32,
191         },
192         .instobj = &nv04_instobj_oclass.base,
193 }.base;