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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 | |
c814a60d | 36 | static void |
639c308e | 37 | gf100_fb_intr(struct nvkm_subdev *subdev) |
c814a60d | 38 | { |
6758745b | 39 | struct nvkm_device *device = subdev->device; |
6758745b | 40 | u32 intr = nvkm_rd32(device, 0x000100); |
b1e4553c | 41 | if (intr & 0x08000000) |
3ecd329b | 42 | nvkm_debug(subdev, "PFFB intr\n"); |
b1e4553c | 43 | if (intr & 0x00002000) |
3ecd329b | 44 | nvkm_debug(subdev, "PBFB intr\n"); |
c814a60d BS |
45 | } |
46 | ||
aae95ca7 | 47 | int |
639c308e | 48 | gf100_fb_init(struct nvkm_object *object) |
a1484512 | 49 | { |
b1e4553c | 50 | struct gf100_fb *fb = (void *)object; |
6758745b | 51 | struct nvkm_device *device = fb->base.subdev.device; |
861d2107 BS |
52 | int ret; |
53 | ||
b1e4553c | 54 | ret = nvkm_fb_init(&fb->base); |
861d2107 BS |
55 | if (ret) |
56 | return ret; | |
ffc6a4e4 | 57 | |
b1e4553c | 58 | if (fb->r100c10_page) |
6758745b | 59 | nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8); |
639c308e | 60 | |
6758745b | 61 | nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */ |
861d2107 | 62 | return 0; |
a1484512 BS |
63 | } |
64 | ||
aae95ca7 | 65 | void |
639c308e | 66 | gf100_fb_dtor(struct nvkm_object *object) |
310ff414 | 67 | { |
639c308e | 68 | struct nvkm_device *device = nv_device(object); |
b1e4553c | 69 | struct gf100_fb *fb = (void *)object; |
a1484512 | 70 | |
b1e4553c BS |
71 | if (fb->r100c10_page) { |
72 | dma_unmap_page(nv_device_base(device), fb->r100c10, PAGE_SIZE, | |
fd1496a0 | 73 | DMA_BIDIRECTIONAL); |
b1e4553c | 74 | __free_page(fb->r100c10_page); |
310ff414 BS |
75 | } |
76 | ||
b1e4553c | 77 | nvkm_fb_destroy(&fb->base); |
310ff414 BS |
78 | } |
79 | ||
aae95ca7 | 80 | int |
639c308e BS |
81 | gf100_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine, |
82 | struct nvkm_oclass *oclass, void *data, u32 size, | |
83 | struct nvkm_object **pobject) | |
4b223eef | 84 | { |
639c308e | 85 | struct nvkm_device *device = nv_device(parent); |
b1e4553c | 86 | struct gf100_fb *fb; |
310ff414 BS |
87 | int ret; |
88 | ||
b1e4553c BS |
89 | ret = nvkm_fb_create(parent, engine, oclass, &fb); |
90 | *pobject = nv_object(fb); | |
861d2107 BS |
91 | if (ret) |
92 | return ret; | |
310ff414 | 93 | |
b1e4553c BS |
94 | fb->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
95 | if (fb->r100c10_page) { | |
96 | fb->r100c10 = dma_map_page(nv_device_base(device), | |
97 | fb->r100c10_page, 0, PAGE_SIZE, | |
fd1496a0 | 98 | DMA_BIDIRECTIONAL); |
b1e4553c | 99 | if (dma_mapping_error(nv_device_base(device), fb->r100c10)) |
fffeba2a BS |
100 | return -EFAULT; |
101 | } | |
861d2107 | 102 | |
b1e4553c | 103 | nv_subdev(fb)->intr = gf100_fb_intr; |
dceef5d8 | 104 | return 0; |
4b223eef | 105 | } |
861d2107 | 106 | |
639c308e BS |
107 | struct nvkm_oclass * |
108 | gf100_fb_oclass = &(struct nvkm_fb_impl) { | |
8613e731 | 109 | .base.handle = NV_SUBDEV(FB, 0xc0), |
639c308e BS |
110 | .base.ofuncs = &(struct nvkm_ofuncs) { |
111 | .ctor = gf100_fb_ctor, | |
112 | .dtor = gf100_fb_dtor, | |
113 | .init = gf100_fb_init, | |
114 | .fini = _nvkm_fb_fini, | |
861d2107 | 115 | }, |
639c308e | 116 | .memtype = gf100_fb_memtype_valid, |
d36a99d2 | 117 | .ram_new = gf100_ram_new, |
8613e731 | 118 | }.base; |