Commit | Line | Data |
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4b223eef | 1 | /* |
861d2107 | 2 | * Copyright 2012 Red Hat Inc. |
4b223eef BS |
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 | |
23 | */ | |
639c308e | 24 | #include "gf100.h" |
d36a99d2 | 25 | #include "ram.h" |
4b223eef | 26 | |
639c308e | 27 | extern const u8 gf100_pte_storage_type_map[256]; |
e30441ad | 28 | |
aae95ca7 | 29 | bool |
b1e4553c | 30 | gf100_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags) |
a1484512 | 31 | { |
861d2107 | 32 | u8 memtype = (tile_flags & 0x0000ff00) >> 8; |
639c308e | 33 | return likely((gf100_pte_storage_type_map[memtype] != 0xff)); |
861d2107 | 34 | } |
a1484512 | 35 | |
03c8952f BS |
36 | void |
37 | gf100_fb_intr(struct nvkm_fb *base) | |
c814a60d | 38 | { |
03c8952f BS |
39 | struct gf100_fb *fb = gf100_fb(base); |
40 | struct nvkm_subdev *subdev = &fb->base.subdev; | |
6758745b | 41 | struct nvkm_device *device = subdev->device; |
6758745b | 42 | u32 intr = nvkm_rd32(device, 0x000100); |
b1e4553c | 43 | if (intr & 0x08000000) |
3ecd329b | 44 | nvkm_debug(subdev, "PFFB intr\n"); |
b1e4553c | 45 | if (intr & 0x00002000) |
3ecd329b | 46 | nvkm_debug(subdev, "PBFB intr\n"); |
c814a60d BS |
47 | } |
48 | ||
03c8952f BS |
49 | void |
50 | gf100_fb_init(struct nvkm_fb *base) | |
a1484512 | 51 | { |
03c8952f | 52 | struct gf100_fb *fb = gf100_fb(base); |
6758745b | 53 | struct nvkm_device *device = fb->base.subdev.device; |
ffc6a4e4 | 54 | |
b1e4553c | 55 | if (fb->r100c10_page) |
6758745b | 56 | nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8); |
639c308e | 57 | |
6758745b | 58 | nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */ |
a1484512 BS |
59 | } |
60 | ||
03c8952f BS |
61 | void * |
62 | gf100_fb_dtor(struct nvkm_fb *base) | |
310ff414 | 63 | { |
03c8952f BS |
64 | struct gf100_fb *fb = gf100_fb(base); |
65 | struct nvkm_device *device = fb->base.subdev.device; | |
a1484512 | 66 | |
b1e4553c | 67 | if (fb->r100c10_page) { |
26c9e8ef | 68 | dma_unmap_page(device->dev, fb->r100c10, PAGE_SIZE, |
fd1496a0 | 69 | DMA_BIDIRECTIONAL); |
b1e4553c | 70 | __free_page(fb->r100c10_page); |
310ff414 BS |
71 | } |
72 | ||
03c8952f | 73 | return fb; |
310ff414 BS |
74 | } |
75 | ||
aae95ca7 | 76 | int |
03c8952f BS |
77 | gf100_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device, |
78 | int index, struct nvkm_fb **pfb) | |
4b223eef | 79 | { |
b1e4553c | 80 | struct gf100_fb *fb; |
310ff414 | 81 | |
03c8952f BS |
82 | if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL))) |
83 | return -ENOMEM; | |
84 | nvkm_fb_ctor(func, device, index, &fb->base); | |
85 | *pfb = &fb->base; | |
310ff414 | 86 | |
b1e4553c BS |
87 | fb->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
88 | if (fb->r100c10_page) { | |
26c9e8ef BS |
89 | fb->r100c10 = dma_map_page(device->dev, fb->r100c10_page, 0, |
90 | PAGE_SIZE, DMA_BIDIRECTIONAL); | |
91 | if (dma_mapping_error(device->dev, fb->r100c10)) | |
fffeba2a BS |
92 | return -EFAULT; |
93 | } | |
861d2107 | 94 | |
dceef5d8 | 95 | return 0; |
4b223eef | 96 | } |
861d2107 | 97 | |
03c8952f BS |
98 | static const struct nvkm_fb_func |
99 | gf100_fb = { | |
100 | .dtor = gf100_fb_dtor, | |
101 | .init = gf100_fb_init, | |
102 | .intr = gf100_fb_intr, | |
d36a99d2 | 103 | .ram_new = gf100_ram_new, |
03c8952f BS |
104 | .memtype_valid = gf100_fb_memtype_valid, |
105 | }; | |
106 | ||
107 | int | |
108 | gf100_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) | |
109 | { | |
110 | return gf100_fb_new_(&gf100_fb, device, index, pfb); | |
111 | } |