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
25 #include "nv04.h"
26
27 static inline int
nv44_graph_class(struct nv04_instmem_priv * priv)28 nv44_graph_class(struct nv04_instmem_priv *priv)
29 {
30 if ((nv_device(priv)->chipset & 0xf0) == 0x60)
31 return 1;
32 return !(0x0baf & (1 << (nv_device(priv)->chipset & 0x0f)));
33 }
34
35 static int
nv40_instmem_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)36 nv40_instmem_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
37 struct nouveau_oclass *oclass, void *data, u32 size,
38 struct nouveau_object **pobject)
39 {
40 struct nouveau_device *device = nv_device(parent);
41 struct pci_dev *pdev = device->pdev;
42 struct nv04_instmem_priv *priv;
43 int ret, bar, vs;
44
45 ret = nouveau_instmem_create(parent, engine, oclass, &priv);
46 *pobject = nv_object(priv);
47 if (ret)
48 return ret;
49
50 /* map bar */
51 if (pci_resource_len(pdev, 2))
52 bar = 2;
53 else
54 bar = 3;
55
56 priv->iomem = ioremap(pci_resource_start(pdev, bar),
57 pci_resource_len(pdev, bar));
58 if (!priv->iomem) {
59 nv_error(priv, "unable to map PRAMIN BAR\n");
60 return -EFAULT;
61 }
62
63 /* PRAMIN aperture maps over the end of vram, reserve enough space
64 * to fit graphics contexts for every channel, the magics come
65 * from engine/graph/nv40.c
66 */
67 vs = hweight8((nv_rd32(priv, 0x001540) & 0x0000ff00) >> 8);
68 if (device->chipset == 0x40) priv->base.reserved = 0x6aa0 * vs;
69 else if (device->chipset < 0x43) priv->base.reserved = 0x4f00 * vs;
70 else if (nv44_graph_class(priv)) priv->base.reserved = 0x4980 * vs;
71 else priv->base.reserved = 0x4a40 * vs;
72 priv->base.reserved += 16 * 1024;
73 priv->base.reserved *= 32; /* per-channel */
74 priv->base.reserved += 512 * 1024; /* pci(e)gart table */
75 priv->base.reserved += 512 * 1024; /* object storage */
76
77 priv->base.reserved = round_up(priv->base.reserved, 4096);
78 priv->base.alloc = nv04_instmem_alloc;
79
80 ret = nouveau_mm_init(&priv->heap, 0, priv->base.reserved, 1);
81 if (ret)
82 return ret;
83
84 /* 0x00000-0x10000: reserve for probable vbios image */
85 ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x10000, 0, 0,
86 &priv->vbios);
87 if (ret)
88 return ret;
89
90 /* 0x10000-0x18000: reserve for RAMHT */
91 ret = nouveau_ramht_new(nv_object(priv), NULL, 0x08000, 0,
92 &priv->ramht);
93 if (ret)
94 return ret;
95
96 /* 0x18000-0x18200: reserve for RAMRO
97 * 0x18200-0x20000: padding
98 */
99 ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x08000, 0, 0,
100 &priv->ramro);
101 if (ret)
102 return ret;
103
104 /* 0x20000-0x21000: reserve for RAMFC
105 * 0x21000-0x40000: padding and some unknown crap
106 */
107 ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x20000, 0,
108 NVOBJ_FLAG_ZERO_ALLOC, &priv->ramfc);
109 if (ret)
110 return ret;
111
112 return 0;
113 }
114
115 static u32
nv40_instmem_rd32(struct nouveau_object * object,u64 addr)116 nv40_instmem_rd32(struct nouveau_object *object, u64 addr)
117 {
118 struct nv04_instmem_priv *priv = (void *)object;
119 return ioread32_native(priv->iomem + addr);
120 }
121
122 static void
nv40_instmem_wr32(struct nouveau_object * object,u64 addr,u32 data)123 nv40_instmem_wr32(struct nouveau_object *object, u64 addr, u32 data)
124 {
125 struct nv04_instmem_priv *priv = (void *)object;
126 iowrite32_native(data, priv->iomem + addr);
127 }
128
129 struct nouveau_oclass
130 nv40_instmem_oclass = {
131 .handle = NV_SUBDEV(INSTMEM, 0x40),
132 .ofuncs = &(struct nouveau_ofuncs) {
133 .ctor = nv40_instmem_ctor,
134 .dtor = nv04_instmem_dtor,
135 .init = _nouveau_instmem_init,
136 .fini = _nouveau_instmem_fini,
137 .rd32 = nv40_instmem_rd32,
138 .wr32 = nv40_instmem_wr32,
139 },
140 };
141