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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" |
4b223eef | 25 | |
42594600 BS |
26 | #include <core/device.h> |
27 | ||
639c308e | 28 | extern const u8 gf100_pte_storage_type_map[256]; |
e30441ad | 29 | |
aae95ca7 | 30 | bool |
639c308e | 31 | gf100_fb_memtype_valid(struct nvkm_fb *pfb, u32 tile_flags) |
a1484512 | 32 | { |
861d2107 | 33 | u8 memtype = (tile_flags & 0x0000ff00) >> 8; |
639c308e | 34 | return likely((gf100_pte_storage_type_map[memtype] != 0xff)); |
861d2107 | 35 | } |
a1484512 | 36 | |
c814a60d | 37 | static void |
639c308e | 38 | gf100_fb_intr(struct nvkm_subdev *subdev) |
c814a60d | 39 | { |
639c308e | 40 | struct gf100_fb_priv *priv = (void *)subdev; |
c814a60d BS |
41 | u32 intr = nv_rd32(priv, 0x000100); |
42 | if (intr & 0x08000000) { | |
43 | nv_debug(priv, "PFFB intr\n"); | |
44 | intr &= ~0x08000000; | |
45 | } | |
46 | if (intr & 0x00002000) { | |
47 | nv_debug(priv, "PBFB intr\n"); | |
48 | intr &= ~0x00002000; | |
49 | } | |
50 | } | |
51 | ||
aae95ca7 | 52 | int |
639c308e | 53 | gf100_fb_init(struct nvkm_object *object) |
a1484512 | 54 | { |
639c308e | 55 | struct gf100_fb_priv *priv = (void *)object; |
861d2107 BS |
56 | int ret; |
57 | ||
639c308e | 58 | ret = nvkm_fb_init(&priv->base); |
861d2107 BS |
59 | if (ret) |
60 | return ret; | |
ffc6a4e4 | 61 | |
fffeba2a BS |
62 | if (priv->r100c10_page) |
63 | nv_wr32(priv, 0x100c10, priv->r100c10 >> 8); | |
639c308e | 64 | |
fe3d9c4b | 65 | nv_mask(priv, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */ |
861d2107 | 66 | return 0; |
a1484512 BS |
67 | } |
68 | ||
aae95ca7 | 69 | void |
639c308e | 70 | gf100_fb_dtor(struct nvkm_object *object) |
310ff414 | 71 | { |
639c308e BS |
72 | struct nvkm_device *device = nv_device(object); |
73 | struct gf100_fb_priv *priv = (void *)object; | |
a1484512 | 74 | |
310ff414 | 75 | if (priv->r100c10_page) { |
fd1496a0 AC |
76 | dma_unmap_page(nv_device_base(device), priv->r100c10, PAGE_SIZE, |
77 | DMA_BIDIRECTIONAL); | |
310ff414 BS |
78 | __free_page(priv->r100c10_page); |
79 | } | |
80 | ||
639c308e | 81 | nvkm_fb_destroy(&priv->base); |
310ff414 BS |
82 | } |
83 | ||
aae95ca7 | 84 | int |
639c308e BS |
85 | gf100_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine, |
86 | struct nvkm_oclass *oclass, void *data, u32 size, | |
87 | struct nvkm_object **pobject) | |
4b223eef | 88 | { |
639c308e BS |
89 | struct nvkm_device *device = nv_device(parent); |
90 | struct gf100_fb_priv *priv; | |
310ff414 BS |
91 | int ret; |
92 | ||
639c308e | 93 | ret = nvkm_fb_create(parent, engine, oclass, &priv); |
861d2107 BS |
94 | *pobject = nv_object(priv); |
95 | if (ret) | |
96 | return ret; | |
310ff414 | 97 | |
861d2107 | 98 | priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
fffeba2a | 99 | if (priv->r100c10_page) { |
fd1496a0 AC |
100 | priv->r100c10 = dma_map_page(nv_device_base(device), |
101 | priv->r100c10_page, 0, PAGE_SIZE, | |
102 | DMA_BIDIRECTIONAL); | |
838f6fe7 | 103 | if (dma_mapping_error(nv_device_base(device), priv->r100c10)) |
fffeba2a BS |
104 | return -EFAULT; |
105 | } | |
861d2107 | 106 | |
639c308e | 107 | nv_subdev(priv)->intr = gf100_fb_intr; |
dceef5d8 | 108 | return 0; |
4b223eef | 109 | } |
861d2107 | 110 | |
639c308e BS |
111 | struct nvkm_oclass * |
112 | gf100_fb_oclass = &(struct nvkm_fb_impl) { | |
8613e731 | 113 | .base.handle = NV_SUBDEV(FB, 0xc0), |
639c308e BS |
114 | .base.ofuncs = &(struct nvkm_ofuncs) { |
115 | .ctor = gf100_fb_ctor, | |
116 | .dtor = gf100_fb_dtor, | |
117 | .init = gf100_fb_init, | |
118 | .fini = _nvkm_fb_fini, | |
861d2107 | 119 | }, |
639c308e BS |
120 | .memtype = gf100_fb_memtype_valid, |
121 | .ram = &gf100_ram_oclass, | |
8613e731 | 122 | }.base; |