1 /*
2 * Copyright (C) 2010 Francisco Jerez.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #include <subdev/fb.h>
28
29 struct nv20_fb_priv {
30 struct nouveau_fb base;
31 };
32
33 int
nv20_fb_vram_init(struct nouveau_fb * pfb)34 nv20_fb_vram_init(struct nouveau_fb *pfb)
35 {
36 u32 pbus1218 = nv_rd32(pfb, 0x001218);
37
38 switch (pbus1218 & 0x00000300) {
39 case 0x00000000: pfb->ram.type = NV_MEM_TYPE_SDRAM; break;
40 case 0x00000100: pfb->ram.type = NV_MEM_TYPE_DDR1; break;
41 case 0x00000200: pfb->ram.type = NV_MEM_TYPE_GDDR3; break;
42 case 0x00000300: pfb->ram.type = NV_MEM_TYPE_GDDR2; break;
43 }
44 pfb->ram.size = (nv_rd32(pfb, 0x10020c) & 0xff000000);
45 pfb->ram.parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
46
47 return nv_rd32(pfb, 0x100320);
48 }
49
50 void
nv20_fb_tile_init(struct nouveau_fb * pfb,int i,u32 addr,u32 size,u32 pitch,u32 flags,struct nouveau_fb_tile * tile)51 nv20_fb_tile_init(struct nouveau_fb *pfb, int i, u32 addr, u32 size, u32 pitch,
52 u32 flags, struct nouveau_fb_tile *tile)
53 {
54 tile->addr = 0x00000001 | addr;
55 tile->limit = max(1u, addr + size) - 1;
56 tile->pitch = pitch;
57 if (flags & 4) {
58 pfb->tile.comp(pfb, i, size, flags, tile);
59 tile->addr |= 2;
60 }
61 }
62
63 static void
nv20_fb_tile_comp(struct nouveau_fb * pfb,int i,u32 size,u32 flags,struct nouveau_fb_tile * tile)64 nv20_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
65 struct nouveau_fb_tile *tile)
66 {
67 u32 tiles = DIV_ROUND_UP(size, 0x40);
68 u32 tags = round_up(tiles / pfb->ram.parts, 0x40);
69 if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
70 if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */
71 else tile->zcomp = 0x04000000; /* Z24S8 */
72 tile->zcomp |= tile->tag->offset;
73 tile->zcomp |= 0x80000000; /* enable */
74 #ifdef __BIG_ENDIAN
75 tile->zcomp |= 0x08000000;
76 #endif
77 }
78 }
79
80 void
nv20_fb_tile_fini(struct nouveau_fb * pfb,int i,struct nouveau_fb_tile * tile)81 nv20_fb_tile_fini(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile)
82 {
83 tile->addr = 0;
84 tile->limit = 0;
85 tile->pitch = 0;
86 tile->zcomp = 0;
87 nouveau_mm_free(&pfb->tags, &tile->tag);
88 }
89
90 void
nv20_fb_tile_prog(struct nouveau_fb * pfb,int i,struct nouveau_fb_tile * tile)91 nv20_fb_tile_prog(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile)
92 {
93 nv_wr32(pfb, 0x100244 + (i * 0x10), tile->limit);
94 nv_wr32(pfb, 0x100248 + (i * 0x10), tile->pitch);
95 nv_wr32(pfb, 0x100240 + (i * 0x10), tile->addr);
96 nv_rd32(pfb, 0x100240 + (i * 0x10));
97 nv_wr32(pfb, 0x100300 + (i * 0x04), tile->zcomp);
98 }
99
100 static int
nv20_fb_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)101 nv20_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
102 struct nouveau_oclass *oclass, void *data, u32 size,
103 struct nouveau_object **pobject)
104 {
105 struct nv20_fb_priv *priv;
106 int ret;
107
108 ret = nouveau_fb_create(parent, engine, oclass, &priv);
109 *pobject = nv_object(priv);
110 if (ret)
111 return ret;
112
113 priv->base.memtype_valid = nv04_fb_memtype_valid;
114 priv->base.ram.init = nv20_fb_vram_init;
115 priv->base.tile.regions = 8;
116 priv->base.tile.init = nv20_fb_tile_init;
117 priv->base.tile.comp = nv20_fb_tile_comp;
118 priv->base.tile.fini = nv20_fb_tile_fini;
119 priv->base.tile.prog = nv20_fb_tile_prog;
120 return nouveau_fb_preinit(&priv->base);
121 }
122
123 struct nouveau_oclass
124 nv20_fb_oclass = {
125 .handle = NV_SUBDEV(FB, 0x20),
126 .ofuncs = &(struct nouveau_ofuncs) {
127 .ctor = nv20_fb_ctor,
128 .dtor = _nouveau_fb_dtor,
129 .init = _nouveau_fb_init,
130 .fini = _nouveau_fb_fini,
131 },
132 };
133