1 | /* $NetBSD: nouveau_subdev_fb_ramnv1a.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_ramnv1a.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
29 | |
30 | #include "priv.h" |
31 | |
32 | static int |
33 | nv1a_ram_create(struct nouveau_object *parent, struct nouveau_object *engine, |
34 | struct nouveau_oclass *oclass, void *data, u32 size, |
35 | struct nouveau_object **pobject) |
36 | { |
37 | struct nouveau_fb *pfb = nouveau_fb(parent); |
38 | struct nouveau_ram *ram; |
39 | struct pci_dev *bridge; |
40 | u32 mem, mib; |
41 | int ret; |
42 | |
43 | bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1)); |
44 | if (!bridge) { |
45 | nv_fatal(pfb, "no bridge device\n" ); |
46 | return -ENODEV; |
47 | } |
48 | |
49 | ret = nouveau_ram_create(parent, engine, oclass, &ram); |
50 | *pobject = nv_object(ram); |
51 | if (ret) |
52 | return ret; |
53 | |
54 | if (nv_device(pfb)->chipset == 0x1a) { |
55 | pci_read_config_dword(bridge, 0x7c, &mem); |
56 | mib = ((mem >> 6) & 31) + 1; |
57 | } else { |
58 | pci_read_config_dword(bridge, 0x84, &mem); |
59 | mib = ((mem >> 4) & 127) + 1; |
60 | } |
61 | |
62 | ram->type = NV_MEM_TYPE_STOLEN; |
63 | ram->size = mib * 1024 * 1024; |
64 | return 0; |
65 | } |
66 | |
67 | struct nouveau_oclass |
68 | nv1a_ram_oclass = { |
69 | .handle = 0, |
70 | .ofuncs = &(struct nouveau_ofuncs) { |
71 | .ctor = nv1a_ram_create, |
72 | .dtor = _nouveau_ram_dtor, |
73 | .init = _nouveau_ram_init, |
74 | .fini = _nouveau_ram_fini, |
75 | } |
76 | }; |
77 | |