projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | } |