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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 | |
99c59172 BS |
27 | #include <core/memory.h> |
28 | #include <core/option.h> | |
29 | ||
639c308e | 30 | extern const u8 gf100_pte_storage_type_map[256]; |
e30441ad | 31 | |
aae95ca7 | 32 | bool |
b1e4553c | 33 | gf100_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags) |
a1484512 | 34 | { |
861d2107 | 35 | u8 memtype = (tile_flags & 0x0000ff00) >> 8; |
639c308e | 36 | return likely((gf100_pte_storage_type_map[memtype] != 0xff)); |
861d2107 | 37 | } |
a1484512 | 38 | |
03c8952f BS |
39 | void |
40 | gf100_fb_intr(struct nvkm_fb *base) | |
c814a60d | 41 | { |
03c8952f BS |
42 | struct gf100_fb *fb = gf100_fb(base); |
43 | struct nvkm_subdev *subdev = &fb->base.subdev; | |
6758745b | 44 | struct nvkm_device *device = subdev->device; |
6758745b | 45 | u32 intr = nvkm_rd32(device, 0x000100); |
b1e4553c | 46 | if (intr & 0x08000000) |
3ecd329b | 47 | nvkm_debug(subdev, "PFFB intr\n"); |
b1e4553c | 48 | if (intr & 0x00002000) |
3ecd329b | 49 | nvkm_debug(subdev, "PBFB intr\n"); |
c814a60d BS |
50 | } |
51 | ||
99c59172 BS |
52 | int |
53 | gf100_fb_oneinit(struct nvkm_fb *fb) | |
54 | { | |
55 | struct nvkm_device *device = fb->subdev.device; | |
56 | int ret, size = 0x1000; | |
57 | ||
58 | size = nvkm_longopt(device->cfgopt, "MmuDebugBufferSize", size); | |
59 | size = min(size, 0x1000); | |
60 | ||
61 | ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000, | |
62 | false, &fb->mmu_rd); | |
63 | if (ret) | |
64 | return ret; | |
65 | ||
66 | ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000, | |
67 | false, &fb->mmu_wr); | |
68 | if (ret) | |
69 | return ret; | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
c73baa83 BS |
74 | void |
75 | gf100_fb_init_page(struct nvkm_fb *fb) | |
76 | { | |
77 | struct nvkm_device *device = fb->subdev.device; | |
78 | switch (fb->page) { | |
79 | case 16: | |
80 | nvkm_mask(device, 0x100c80, 0x00000001, 0x00000001); | |
81 | break; | |
82 | case 17: | |
83 | default: | |
84 | nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); | |
85 | fb->page = 17; | |
86 | break; | |
87 | } | |
88 | } | |
89 | ||
03c8952f BS |
90 | void |
91 | gf100_fb_init(struct nvkm_fb *base) | |
a1484512 | 92 | { |
03c8952f | 93 | struct gf100_fb *fb = gf100_fb(base); |
6758745b | 94 | struct nvkm_device *device = fb->base.subdev.device; |
ffc6a4e4 | 95 | |
b1e4553c | 96 | if (fb->r100c10_page) |
6758745b | 97 | nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8); |
a1484512 BS |
98 | } |
99 | ||
03c8952f BS |
100 | void * |
101 | gf100_fb_dtor(struct nvkm_fb *base) | |
310ff414 | 102 | { |
03c8952f BS |
103 | struct gf100_fb *fb = gf100_fb(base); |
104 | struct nvkm_device *device = fb->base.subdev.device; | |
a1484512 | 105 | |
b1e4553c | 106 | if (fb->r100c10_page) { |
26c9e8ef | 107 | dma_unmap_page(device->dev, fb->r100c10, PAGE_SIZE, |
fd1496a0 | 108 | DMA_BIDIRECTIONAL); |
b1e4553c | 109 | __free_page(fb->r100c10_page); |
310ff414 BS |
110 | } |
111 | ||
03c8952f | 112 | return fb; |
310ff414 BS |
113 | } |
114 | ||
aae95ca7 | 115 | int |
03c8952f BS |
116 | gf100_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device, |
117 | int index, struct nvkm_fb **pfb) | |
4b223eef | 118 | { |
b1e4553c | 119 | struct gf100_fb *fb; |
310ff414 | 120 | |
03c8952f BS |
121 | if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL))) |
122 | return -ENOMEM; | |
123 | nvkm_fb_ctor(func, device, index, &fb->base); | |
124 | *pfb = &fb->base; | |
310ff414 | 125 | |
b1e4553c BS |
126 | fb->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
127 | if (fb->r100c10_page) { | |
26c9e8ef BS |
128 | fb->r100c10 = dma_map_page(device->dev, fb->r100c10_page, 0, |
129 | PAGE_SIZE, DMA_BIDIRECTIONAL); | |
130 | if (dma_mapping_error(device->dev, fb->r100c10)) | |
fffeba2a BS |
131 | return -EFAULT; |
132 | } | |
861d2107 | 133 | |
dceef5d8 | 134 | return 0; |
4b223eef | 135 | } |
861d2107 | 136 | |
03c8952f BS |
137 | static const struct nvkm_fb_func |
138 | gf100_fb = { | |
139 | .dtor = gf100_fb_dtor, | |
99c59172 | 140 | .oneinit = gf100_fb_oneinit, |
03c8952f | 141 | .init = gf100_fb_init, |
c73baa83 | 142 | .init_page = gf100_fb_init_page, |
03c8952f | 143 | .intr = gf100_fb_intr, |
d36a99d2 | 144 | .ram_new = gf100_ram_new, |
03c8952f BS |
145 | .memtype_valid = gf100_fb_memtype_valid, |
146 | }; | |
147 | ||
148 | int | |
149 | gf100_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) | |
150 | { | |
151 | return gf100_fb_new_(&gf100_fb, device, index, pfb); | |
152 | } |