2 * Copyright 2012 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
27 #include <core/memory.h>
28 #include <core/option.h>
30 extern const u8 gf100_pte_storage_type_map
[256];
33 gf100_fb_memtype_valid(struct nvkm_fb
*fb
, u32 tile_flags
)
35 u8 memtype
= (tile_flags
& 0x0000ff00) >> 8;
36 return likely((gf100_pte_storage_type_map
[memtype
] != 0xff));
40 gf100_fb_intr(struct nvkm_fb
*base
)
42 struct gf100_fb
*fb
= gf100_fb(base
);
43 struct nvkm_subdev
*subdev
= &fb
->base
.subdev
;
44 struct nvkm_device
*device
= subdev
->device
;
45 u32 intr
= nvkm_rd32(device
, 0x000100);
46 if (intr
& 0x08000000)
47 nvkm_debug(subdev
, "PFFB intr\n");
48 if (intr
& 0x00002000)
49 nvkm_debug(subdev
, "PBFB intr\n");
53 gf100_fb_oneinit(struct nvkm_fb
*base
)
55 struct gf100_fb
*fb
= gf100_fb(base
);
56 struct nvkm_device
*device
= fb
->base
.subdev
.device
;
57 int ret
, size
= 0x1000;
59 size
= nvkm_longopt(device
->cfgopt
, "MmuDebugBufferSize", size
);
60 size
= min(size
, 0x1000);
62 ret
= nvkm_memory_new(device
, NVKM_MEM_TARGET_INST
, size
, 0x1000,
63 true, &fb
->base
.mmu_rd
);
67 ret
= nvkm_memory_new(device
, NVKM_MEM_TARGET_INST
, size
, 0x1000,
68 true, &fb
->base
.mmu_wr
);
72 fb
->r100c10_page
= alloc_page(GFP_KERNEL
| __GFP_ZERO
);
73 if (fb
->r100c10_page
) {
74 fb
->r100c10
= dma_map_page(device
->dev
, fb
->r100c10_page
, 0,
75 PAGE_SIZE
, DMA_BIDIRECTIONAL
);
76 if (dma_mapping_error(device
->dev
, fb
->r100c10
))
84 gf100_fb_init_page(struct nvkm_fb
*fb
)
86 struct nvkm_device
*device
= fb
->subdev
.device
;
88 case 16: nvkm_mask(device
, 0x100c80, 0x00000001, 0x00000001); break;
89 case 17: nvkm_mask(device
, 0x100c80, 0x00000001, 0x00000000); break;
97 gf100_fb_init(struct nvkm_fb
*base
)
99 struct gf100_fb
*fb
= gf100_fb(base
);
100 struct nvkm_device
*device
= fb
->base
.subdev
.device
;
102 if (fb
->r100c10_page
)
103 nvkm_wr32(device
, 0x100c10, fb
->r100c10
>> 8);
107 gf100_fb_dtor(struct nvkm_fb
*base
)
109 struct gf100_fb
*fb
= gf100_fb(base
);
110 struct nvkm_device
*device
= fb
->base
.subdev
.device
;
112 if (fb
->r100c10_page
) {
113 dma_unmap_page(device
->dev
, fb
->r100c10
, PAGE_SIZE
,
115 __free_page(fb
->r100c10_page
);
122 gf100_fb_new_(const struct nvkm_fb_func
*func
, struct nvkm_device
*device
,
123 int index
, struct nvkm_fb
**pfb
)
127 if (!(fb
= kzalloc(sizeof(*fb
), GFP_KERNEL
)))
129 nvkm_fb_ctor(func
, device
, index
, &fb
->base
);
135 static const struct nvkm_fb_func
137 .dtor
= gf100_fb_dtor
,
138 .oneinit
= gf100_fb_oneinit
,
139 .init
= gf100_fb_init
,
140 .init_page
= gf100_fb_init_page
,
141 .intr
= gf100_fb_intr
,
142 .ram_new
= gf100_ram_new
,
143 .memtype_valid
= gf100_fb_memtype_valid
,
144 .default_bigpage
= 17,
148 gf100_fb_new(struct nvkm_device
*device
, int index
, struct nvkm_fb
**pfb
)
150 return gf100_fb_new_(&gf100_fb
, device
, index
, pfb
);