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ad4a3626 BS |
1 | /* |
2 | * Copyright 2014 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 <bskeggs@redhat.com> | |
23 | */ | |
ad4a3626 BS |
24 | #include <subdev/bios.h> |
25 | #include <subdev/bios/image.h> | |
7af4dec1 | 26 | #include <subdev/bios/pcir.h> |
7205875d | 27 | #include <subdev/bios/npde.h> |
ad4a3626 BS |
28 | |
29 | static bool | |
d390b480 | 30 | nvbios_imagen(struct nvkm_bios *bios, struct nvbios_image *image) |
ad4a3626 | 31 | { |
60b29d20 | 32 | struct nvkm_subdev *subdev = &bios->subdev; |
7af4dec1 | 33 | struct nvbios_pcirT pcir; |
7205875d | 34 | struct nvbios_npdeT npde; |
7af4dec1 BS |
35 | u8 ver; |
36 | u16 hdr; | |
ad4a3626 BS |
37 | u32 data; |
38 | ||
7f5f518f | 39 | switch ((data = nvbios_rd16(bios, image->base + 0x00))) { |
ad4a3626 | 40 | case 0xaa55: |
798dda55 | 41 | case 0xbb77: |
a1a86aab | 42 | case 0x4e56: /* NV */ |
ad4a3626 BS |
43 | break; |
44 | default: | |
60b29d20 BS |
45 | nvkm_debug(subdev, "%08x: ROM signature (%04x) unknown\n", |
46 | image->base, data); | |
ad4a3626 BS |
47 | return false; |
48 | } | |
49 | ||
7af4dec1 BS |
50 | if (!(data = nvbios_pcirTp(bios, image->base, &ver, &hdr, &pcir))) |
51 | return false; | |
52 | image->size = pcir.image_size; | |
53 | image->type = pcir.image_type; | |
c2c2f6cb | 54 | image->last = pcir.last; |
7205875d | 55 | |
9b4de93b BS |
56 | if (image->type != 0x70) { |
57 | if (!(data = nvbios_npdeTp(bios, image->base, &npde))) | |
58 | return true; | |
59 | image->size = npde.image_size; | |
60 | image->last = npde.last; | |
61 | } else { | |
62 | image->last = true; | |
63 | } | |
64 | ||
ad4a3626 BS |
65 | return true; |
66 | } | |
67 | ||
68 | bool | |
d390b480 | 69 | nvbios_image(struct nvkm_bios *bios, int idx, struct nvbios_image *image) |
ad4a3626 | 70 | { |
2f96e8e3 | 71 | u32 imaged_addr = bios->imaged_addr; |
ad4a3626 | 72 | memset(image, 0x00, sizeof(*image)); |
2f96e8e3 | 73 | bios->imaged_addr = 0; |
c2c2f6cb BS |
74 | do { |
75 | image->base += image->size; | |
2f96e8e3 BS |
76 | if (image->last || !nvbios_imagen(bios, image)) { |
77 | bios->imaged_addr = imaged_addr; | |
c2c2f6cb | 78 | return false; |
2f96e8e3 | 79 | } |
c2c2f6cb | 80 | } while(idx--); |
2f96e8e3 | 81 | bios->imaged_addr = imaged_addr; |
c2c2f6cb | 82 | return true; |
ad4a3626 | 83 | } |