1 | /* $NetBSD: nouveau_subdev_fb_ramnv04.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2013 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_fb_ramnv04.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
29 | |
30 | #define NV04_PFB_BOOT_0 0x00100000 |
31 | # define NV04_PFB_BOOT_0_RAM_AMOUNT 0x00000003 |
32 | # define NV04_PFB_BOOT_0_RAM_AMOUNT_32MB 0x00000000 |
33 | # define NV04_PFB_BOOT_0_RAM_AMOUNT_4MB 0x00000001 |
34 | # define NV04_PFB_BOOT_0_RAM_AMOUNT_8MB 0x00000002 |
35 | # define NV04_PFB_BOOT_0_RAM_AMOUNT_16MB 0x00000003 |
36 | # define NV04_PFB_BOOT_0_RAM_WIDTH_128 0x00000004 |
37 | # define NV04_PFB_BOOT_0_RAM_TYPE 0x00000028 |
38 | # define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT 0x00000000 |
39 | # define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT 0x00000008 |
40 | # define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT_4BANK 0x00000010 |
41 | # define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT 0x00000018 |
42 | # define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBIT 0x00000020 |
43 | # define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBITX16 0x00000028 |
44 | # define NV04_PFB_BOOT_0_UMA_ENABLE 0x00000100 |
45 | # define NV04_PFB_BOOT_0_UMA_SIZE 0x0000f000 |
46 | |
47 | #include "priv.h" |
48 | |
49 | static int |
50 | nv04_ram_create(struct nouveau_object *parent, struct nouveau_object *engine, |
51 | struct nouveau_oclass *oclass, void *data, u32 size, |
52 | struct nouveau_object **pobject) |
53 | { |
54 | struct nouveau_fb *pfb = nouveau_fb(parent); |
55 | struct nouveau_ram *ram; |
56 | u32 boot0 = nv_rd32(pfb, NV04_PFB_BOOT_0); |
57 | int ret; |
58 | |
59 | ret = nouveau_ram_create(parent, engine, oclass, &ram); |
60 | *pobject = nv_object(ram); |
61 | if (ret) |
62 | return ret; |
63 | |
64 | if (boot0 & 0x00000100) { |
65 | ram->size = ((boot0 >> 12) & 0xf) * 2 + 2; |
66 | ram->size *= 1024 * 1024; |
67 | } else { |
68 | switch (boot0 & NV04_PFB_BOOT_0_RAM_AMOUNT) { |
69 | case NV04_PFB_BOOT_0_RAM_AMOUNT_32MB: |
70 | ram->size = 32 * 1024 * 1024; |
71 | break; |
72 | case NV04_PFB_BOOT_0_RAM_AMOUNT_16MB: |
73 | ram->size = 16 * 1024 * 1024; |
74 | break; |
75 | case NV04_PFB_BOOT_0_RAM_AMOUNT_8MB: |
76 | ram->size = 8 * 1024 * 1024; |
77 | break; |
78 | case NV04_PFB_BOOT_0_RAM_AMOUNT_4MB: |
79 | ram->size = 4 * 1024 * 1024; |
80 | break; |
81 | } |
82 | } |
83 | |
84 | if ((boot0 & 0x00000038) <= 0x10) |
85 | ram->type = NV_MEM_TYPE_SGRAM; |
86 | else |
87 | ram->type = NV_MEM_TYPE_SDRAM; |
88 | return 0; |
89 | } |
90 | |
91 | struct nouveau_oclass |
92 | nv04_ram_oclass = { |
93 | .handle = 0, |
94 | .ofuncs = &(struct nouveau_ofuncs) { |
95 | .ctor = nv04_ram_create, |
96 | .dtor = _nouveau_ram_dtor, |
97 | .init = _nouveau_ram_init, |
98 | .fini = _nouveau_ram_fini, |
99 | } |
100 | }; |
101 | |